TurboChef Service Manual
FOR THE TURBOCHEF NGC (TORNADO) OVEN
Accelerating the World of Cooking
800.90TURBO
Part Number: NGC-1007 / Revision D / September 2007
Download from Www.Somanuals.com. All Manuals Search And Download.
For further information call:
800.90TURBO
+1 214.379.6000
Accelerating the World of Cooking
Download from Www.Somanuals.com. All Manuals Search And Download.
IMPORTANT SAFETY INFORMATION - PLEASE READ FIRST
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property
damage, injury, or death. Thoroughly read the installation, operating, and maintenance instructions
before installing or servicing this equipment.
This product employs an exposed radiant heating element in the bottom of the cavity. This element is HOT
during operation and will remain at dangerous temperatures after the unit is switched off. NEVER attempt to
touch the element during operation, while the oven is warm, or while the oven is cooling down.
x
†
DO NOT store flammable vapors or liquids (such as gasoline) in the vicinity of this or any other appliance.
The information contained in this manual is important for the proper installation, use, and maintenance of
this oven. Adherence to these procedures and instructions will result in satisfactory baking results and help
prevent maintenance. Please read this manual carefully and retain it for future reference.
Errors - descriptive, typographic, or pictorial - are subject to correction. Specifications are subject to change
without notice.
Download from Www.Somanuals.com. All Manuals Search And Download.
Table of Contents
Important Safety Instructions
General Safety Information
Reducing Fire Risk
i
i
i
Precautions to be Observed Before and During Servicing to Avoid Possible
Exposure to Excessive Microwave Energy
Grounding Instructions
Power Cord Replacement
RF Interference Considerations
ii
ii
ii
ii
Chapter 1: Installation, Specifications and Maintenance
Specs and Dimensions
Dimensions
1
1
1
1
1
1
1-2
2
2
2
2
3
4
4
4
4
4
4
5
Construction
Standard Features
Certifications
Packaging
Power Supply (Domestic and Intl Electrical Specifications)
Power Input
Delivery and Product Placement
Lifting and Placing the Oven
Built-In Installation
Installation Near Open Heat Source
Oven Restraint Kit
Setup and Initial Operation
Setup
Stacking
Programming
Initial Power-Up
Maintenance
Chapter 2: Theory of Operation
Theory of Operation
Glossary of Common Operating Terms
7
8
Chapter 3: Fault Codes
To View Fault Codes
Fault Code Definitions
Fault Code Table
11
11
12
Chapter 4: The Control System
Control System Schematic
Control System Component Descriptions
Test Mode
Test Function Options
Status Indicators
13
14
14
15
16
Download from Www.Somanuals.com. All Manuals Search And Download.
Oven Options
18
19
19
20
21
User Configurable Options - Enable/Disable Codes
User Configurable Options - Access Codes
Control System Panel Parts
Control System Troubleshooting
Chapter 5: The Microwave System
Voltage Doubler Circuit Description
Monitor Circuit Description
Voltage Doubler Theory of Operation
Microwave System Parts
Microwave System Components
Wave Guide Cover Replacement
Wave Guide/Wave Guide Cover Parts
Wave Guide Replacement
High Voltage and Filament Transformer Replacement
Wiring the High Voltage Transformers
Wiring the Filament Transformers
Measuring RF Leakage for Microwave Safety
How to Test Microwave Components
Testing the High Voltage Diode
How to Check a Diode
How to Check a Capacitor
How to Check a Magnetron for Open/Shorted Filament
How to Check a High Voltage Transformer or Filament Transformer
High Voltage and Filament Transformer Resistance Table
Microwave System Troubleshooting
25
25
26
26
28
29
30
30
30
30
31
31
32
32
32
33
33
33
33
34
Chapter 6: The Oven Door
Removing/Reinstalling the Oven Door
Oven Door Parts
Adjusting the Oven Door
Preparing the Oven for Switch Adjustment
Oven Burn-In Procedure
Adjusting the Primary and Secondary Interlock Switches - Old Switch Setup
Primary and Secondary Interlock Switch Adjustments and Parts
Door Switch Assembly and Parts
Adjusting the Monitor Safety Switch - Old Switch Setup
Monitor Safety Switch Parts
Adjusting the Primary Interlock Switch - New Switch Setup
Primary Switch Adjustment and Parts
37
37
38
38
38
38
39
40
40
40
42
42
Adjusting the Secondary and Monitor Interlock Switches - New Switch Setup 43
Secondary and Monitor Safety Switch Parts
Oven Door Assembly
Oven Door Parts
Screw Torque Chart
Interlock Switch Troubleshooting
43
44
44
45
46
Download from Www.Somanuals.com. All Manuals Search And Download.
Chapter 7: The Convection Circuit
Convection Circuit Components
Convection Circuit/Blower Motor Parts
Convection Circuit Troubleshooting
Motor Winding Resistances Table
47
48
49
50
Chapter 8: IR Element and Catalytic Converter
Components
IR Element and Catalyst Removal
Removing the IR Element
Removing & Installing the Catalytic Converter
Installing a New IR Element
IR Element and Catalytic Converter Parts
51
51
51
52
52
52
Chapter 9: Schematics and Schematic Components
Schematic Parts
53
53
Line Voltage Components
Low Voltage Components
53
Wire Harness Replacement P/N’s
I/O Control Board Item Identification and Test Point Locations
Schematic - I/O Board
53
53
54
Oven Schematics
55 - 63
Chapter 10: Service Parts and Illustrations
Figure 7: NGC (Tornado) Control System
65
66
67
67
68
68
69
69
70
70
71
71
72
73
74
75
76
77
78
Figure 17: Control System Panel Enclosure and Parts
Figure 18: Monitor Circuit - Shown in Failsafe State
Figure 20: Microwave System Parts
Figure 21: Microwave System Parts
Figure 22: Wave Guide Cover/Wave Guide Removal and Replacement
Figure 24 & 25: High Voltage Diode and Magnetron
Figure 26: Oven Door Removal and Parts
Figure 29: Primary and Secondary Adjustment and Parts - Old Switch Setup
Figure 30: Door Switch Assembly and Parts
Figure 31: Motor Switch Adjustment and Assembly - Old Switch Setup
Figure 32: Primary Interlock Adjustment and Parts - New Switch Setup
Figure 33 & 34: Secondary and Monitor Adj. and Assy. - New Switch Setup
Figure 35: Oven Door Assembly
Figure 37: Convection Circuit Block Diagram
Figure 38: Convection Circuit Assembly and Parts
Figure 39: IR Element and Catalytic Converter Parts and Assembly
Figure 46: Covers and Miscellaneous Parts - Non-SBK Ovens
Figure 47: Covers and Miscellaneous Parts - SBK Ovens
Chapter 11: Comprehensive Part List
Comprehensive Part List
79
Download from Www.Somanuals.com. All Manuals Search And Download.
INTRODUCTION
i
IMPORTANT SAFETY INSTRUCTIONS
Strictly adhere to the following safety precautions to reduce the risk of:
†
Burns
†
Electric shock
†
Fire
†
Injury
†
Damage to oven or property near oven
†
Exposure to excessive microwave energy
GENERAL SAFETY INFORMATION
†
Read all instructions before using the appliance.
†
Install or locate this appliance only in accordance with the provided installation instructions.
†
Some products such as whole eggs and sealed containers (e.g., closed glass jars) may explode and should not be
heated in this oven.
†
†
Use this appliance only for its intended use as described in this manual.
This appliance should be serviced only by qualified service personnel. Contact the nearest authorized service
facility for examination, repair, or adjustment.
†
Keep cord away from heated surfaces.
x
†
DO NOT allow children to use this appliance.
x
†
DO NOT use corrosive chemicals or vapors in this appliance - it is not designed for industrial or laboratory use.
DO NOT operate this appliance if it has a damaged cord or plug, is not working properly, or has been damaged
or dropped. See POWER CORD REPLACEMENT, page ii.
x
†
x
†
DO NOT cover or block any openings on the appliance.
x
†
DO NOT store this appliance outdoors.
x
†
DO NOT use this product near water (e.g., near a kitchen sink, in a wet basement, near a swimming pool).
DO NOT immerse cord or plug in water.
x
†
x
†
DO NOT let cord hang over the edge of table or counter.
x
†
DO NOT use a water jet for cleaning. See the maintenance section of this manual on page 5 for proper cleaning
procedures.
REDUCING FIRE RISK
†
Remove wire twist-ties from paper or plastic bags used to facilitate cooking in the oven.
†
If materials inside the oven ignite,
- Keep oven door closed
- Turn oven off
- Disconnect the power cord or shut off power at the fuse or circuit breaker panel
†
If smoke is observed, switch off or unplug the oven. Keep the door closed to stifle any flames.
x
†
DO NOT use the cook cavity for storage purposes.
x
†
DO NOT overcook food. Carefully attend the oven if paper, plastic, or other combustible materials are placed
inside the oven to facilitate cooking.
x
†
DO NOT leave paper products, cooking utensils, or food in the cavity when not in use.
SAVE THESE INSTRUCTIONS
Download from Www.Somanuals.com. All Manuals Search And Download.
ii
INTRODUCTION
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY
(a) DO NOT operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs as necessary: (1) interlock operation, (2) proper door closing,
(3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges
and latches, (5) evidence of dropping or abuse.
(c) Before turning on microwave power for any service test or inspection within the microwave
generating compartments, check the magnetron, wave guide or transmission line, and cavity for
proper alignment, integrity, and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave
generation and transmission systems shall be repaired, replaced, or adjusted by procedures described
in this manual before the oven is released to the owner.
(e) A microwave leakage check to verify compliance with the Federal performance standard should be
performed on each oven prior to release to the owner.
GROUNDING INSTRUCTIONS
This appliance must be grounded. In the event of an electrical short circuit, grounding reduces the risk of
electric shock by providing an escape wire for the electric current. This oven is equipped with a cord that
has a grounding wire with a grounding plug, which must be plugged into an outlet that is properly installed
and grounded. Consult a qualified electrician or serviceman if uncertain about the ability to follow ground-
ing instructions or if doubt exists as to whether the appliance is properly grounded.
x
†
DO NOT use an extension cord. If the power cord is too short, have a qualified electrician or service-
man install an outlet near the appliance.
WARNING: Improper grounding can result in risk of electric shock.
POWER CORD REPLACEMENT
If the power cord is damaged, it must be replaced by the manufacturer, its service agent, or a similarly quali-
fied person.
RF INTERFERENCE CONSIDERATIONS
The NGC (Tornado) oven generates radio frequency signals. This device has been tested and was determined
to be in compliance with applicable portions of FCC part 18 requirements and to the protection require-
ments of Council Directive 89/336/EEC on the approximation of the laws of the Member States relating
to electromagnetic compatibility at the time of manufacture. However, some equipment with sensitivity to
signals below these limits may experience interference.
If your equipment experiences interference:
†
Increase the physical separation between this oven and the sensitive equipment.
†
If the sensitive device can be grounded, do so following accepted grounding practices.
†
If battery-powered microphones are being affected, ensure that the batteries are fully charged.
†
Keep sensitive equipment on separate electrical circuits if possible.
†
Route intercom wires, microphone wires, speaker cables, etc. away from the oven.
Download from Www.Somanuals.com. All Manuals Search And Download.
Installation, Specifications,
and Maintenance
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION, SPECIFICATIONS, AND MAINTENANCE
1
FIGURE 1: NGC (Tornado) Dimensions
SPECS AND DIMENSIONS
Standard Features
†
Recirculating airpath with patented catalytic converter
system
Dimensions
EXTERIOR
COOK CAVITY
†
Multi-speed convection blower
Independently-controlled bottom browning element
Stackable design
Smart Voltage Sensor Technology (North America only)
Factory-programmed, customizable menu settings
Smart Card for remote programming
Warranty - 1 year parts and labor
Height
with legs
Width
Depth
with handle 28.2” (716 mm)
Weight
19” (483 mm)
23” (584 mm)
26” (660 mm)
8” (203 mm)
†
†
15.5” (394 mm)
†
25.7” (653 mm) 14.7” (373 mm)
†
†
190 lbs. (86 kg)
†
WALL CLEARANCE
Certifications
UL, cUL, NSF, FDA, FCC, TÜV, CE
Back
Sides
0” (0 mm) unless built-in (page 2)
2” (51 mm)
ENTRY CLEARANCE (minimum)
Crated
Uncrated
31.5” (800 mm)
28.7” (729 mm)
UL KNLZ Ventless Certification - This product conforms
to the ventilation recommendations set forth by NFPA96
using EPA202 test method.
Construction
EXTERIOR
†
430 stainless steel front, top and sides.
4” (102 mm) adjustable legs
Cool to the touch handle
Packaging
†
†
All ovens are packaged in a double-wall corrugated box
banded to a wooden skid.
INTERIOR
Power Supply - North America
†
304 stainless steel line
SMART VOLTAGE SENSOR TECHNOLOGY
†
Fully insulated cooking chamber
Removable assorted cooking surfaces
Independently-controlled lower cooking element
Voltage:
Amperage:
208/240 VAC, 60 Hz, 1 phase
Nameplate rating 30 Amp (3-wire
including ground)
†
†
Cordset:
Plug:
10 gauge, 3 conductor, 5 foot cordset
NEMA 6-30
Download from Www.Somanuals.com. All Manuals Search And Download.
2
INSTALLATION, SPECIFICATIONS, AND MAINTENANCE
POWER INPUT
NOTE: The Smart Voltage Sensor Technology does
not compensate for lack of voltage or over-voltage
situations. It is the responsibility of the owner to
supply voltage to the unit according to the follow-
ing specifications.
Heaters Input Power (NA) 5990/6675 watts
Heaters Input Power (Intl) 6300 watts
Microwave Input Power
3500 watts*
*Maximum Independent Input Power
Power Supply - Europe, Asia-Pacific
NGC EW (3-phase)
DELIVERY AND PRODUCT PLACEMENT
Voltage:
400 VAC, 50 Hz, Wye, 5-
wire (3L + N + Ground)
Type D, min. 20 Amps
Remove oven from carton. Immediately note any
damage and contact shipping company within 24
hours in order to file a claim. TurboChef is not
responsible if the product is damaged in shipment.
Remove all literature and accessories from the carton.
Circuit Breaker:
NGC ED (3-phase)
Universal Voltage:
230 VAC, 50 Hz, Delta, 4-
wire (3L + Ground)
NOTE: Thoroughly check the carton before discarding.
Circuit Breaker:
Type D, min. 30 Amps
WARNING: Oven weight is approx. 190 lbs.
(86 kg) Two or more persons are required to
lift it.
NGC UK (1-phase)
Voltage:
230 VAC, 50 Hz, 3-wire
(2L + Ground)
Type D, min. 30 Amps
Lifting and Placing the Oven
Circuit Breaker:
Position one or more persons on either side of the
oven and lift from the bottom. Never lift the oven
from the front and rear. Place the oven on a counter-
top surface at least 28” (711 mm) deep and capable of
supporting 200 lbs (91 kg).
Power Supply - Latin America
NGC BK (1-phase)
Voltage:
220 VAC, 60 Hz, 3-wire
(2L + Ground)
Circuit Breaker:
Type D, min. 30 Amps
Once properly positioned on the counter, plug the
oven into wall-mounted electrical receptacle. See
page ii for grounding instructions.
Power Supply - Japan
NGC JD (3-phase)
Voltage:
200 VAC, 50/60 Hz, Delta,
4-wire (3L + Ground)
Type D, min. 30 Amps
WARNING: Never lift the oven by its door
handle. Physical damage to the oven and/or
personal injury may result. The operator must ensure
that the oven is properly placed on the countertop at
all times. TurboChef will not recognize a fallen oven
as a warrantable claim and is not liable for any injuries
that may result.
Circuit Breaker:
NGC JK (1-phase)
Voltage:
200 VAC, 50/60 Hz, 3-wire
(2L + Ground)
Type D, min. 30 Amps
Circuit Breaker:
Built-In Installation (Figure 2)
Power Supply - South Korea
NGC KW (3-phase)
TurboChef ovens are designed to be installed on a
countertop or table. They are not intended for built-
in or enclosed installation.
Voltage:
400 VAC, 60 Hz, Wye, 5-
wire (3L + N + Ground)
Type D, min. 20 Amps
Circuit Breaker:
“Built-in or enclosed installation” is defined as
installing an oven in any structure that surrounds the
oven by five sides (i.e., top/rear/side panels and base).
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION, SPECIFICATIONS, AND MAINTENANCE
3
(102 mm)
FIGURE 2: Built-in Installation Specs
FIGURE 3: Open Heat Source Installation Specs
†
Verify oven location has a minimum 6" (152 mm)
clearance on top and minimum 2" (51 mm) of
clearance on each side.
If installation must be “built in,” the operator must
ensure the following:
†
Minimum of 300 cfm (8.5 cmm) of supplement flow
†
If the oven is being placed near a grill or stove,
within the cabinet.
†
there must be a divider between the oven and the
open heat source, with a minimum of 6" (152 mm)
between the oven and the divider.
Minimum clearances of 2" (51 mm) to every surface.
In addition, the operator will be responsible for com-
pensating any extra time required to service the prod-
uct due to removing the product for serviceability.
†
If the oven is being placed near a fryer, there must
be a divider between the oven and fryer, with a
minimum of 12" (305 mm) between the oven and
the divider.
The height of the divider must be greater than or
equal to the height of the oven (23"/584 mm).
Installation Near Open Heat Source (Figure 3)
When placing a TurboChef oven near an open heat
source, strictly adhere to the following:
†
Download from Www.Somanuals.com. All Manuals Search And Download.
4
INSTALLATION, SPECIFICATIONS, AND MAINTENANCE
Oven Restraint Kit (TC3-0242 KIT)
8. Align the holes on the bracket with the holes
on the top oven and reinstall the screws.
The Oven Restraint Kit is an optional system that
helps prevent the oven from moving forward during
use and/or cleaning. It will not prevent the oven from
falling off a countertop if the legs are allowed to slide
off the edge or if the oven is intentionally or forcefully
pulled off.
WARNING: Do not stack ovens over two-
high.
Programming
The oven is preprogrammed and ready to oper-
ate out of the box.
Proper installation instructions are included with the
kit. for additional information, please call customer
service at 800.90TURBO / +1 214.379.6000.
Initial Power-up
To turn on the oven, press the bottom-right soft
key next to the words OVEN ON on the display.
The oven will begin to warm up to its prede-
fined cooking temperature. This takes approxi-
mately 13 minutes.
SETUP AND INITIAL OPERATION
Setup
Once the oven is properly positioned on the counter,
remove any packing material and/or any foreign
objects from within the cavity. Install the oven rack/
cooking surface.
When the warm-up cycle is completed, the oven
will beep and display the READY TO COOK.
Stacking
1. Ensure the surface that will hold the stacked
ovens can support at least 400 lbs (181 kg).
2. Allow ovens adequate time to cool and unplug them
3. If you are stacking ovens on a TurboChef oven
cart (24” = NGC-1217-1, 18” = NGC-1217-2),
make sure that the bottom oven is bolted to the cart
and the wheels are locked.
4. Attach the stacking bracket (P/N TC3-0323) to the
back of the bottom oven:
a. Remove the two screws that hold the top
panel to the back of the oven (see bottom
arrows on Figure 4).
b. Align the holes on the stacking bracket with
the holes on the oven and reinstall the screws.
5. Remove the legs of the oven that will be placed on
top. This requires two or more persons - at least
one person to lift and one to unscrew the legs.
6. Remove the screws from the oven that will be
placed on top (see top arrows on Figure 4).
7. Place this oven on top of the other (the one to which
the stacking bracket is attached).
WARNING: Do not attempt to lift the oven
with fewer than 2 people.
WARNING: Do not lift oven from front and back.
FIGURE 4: Properly Stacked NGC Ovens
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION, SPECIFICATIONS, AND MAINTENANCE
5
1
2
3
4
5
6
7
8
9
10
DAILY MAINTENANCE FOR THE NGC
Before cleaning, check with the store for custom
cleaning instructions.
Step 5: Remove Particles and Spray Oven Interior
with TurboChef® Oven Cleaner
†
Using a damp towel, remove large food particles.
When cleaning the oven, use only TurboChef Oven
Cleaner. Any other cleaning products can damage
critical parts and may void warranty on those parts.
†
If stubborn stain is present, sparingly spray
TurboChef Oven Cleaner onto the stain.
Allow cleaner to penetrate for five (5) minutes.
†
x
†
DO NOT saturate the bottom of the oven with
water or oven cleaner.
Supplies and Equipment
TurboChef Oven Cleaner (P/N 103180 USA,
103380 Intl), Oven Guard (P/N 103181 USA,
103381 Intl), nylon scrub pad, cleaning towel
Step 6: Clean Oven Interior
†
Using a nylon scrub pad, clean the oven door
and cook cavity.
Step 1: Prepare the Oven
†
Turn oven off by pressing the BACK key.
The oven will display OVEN OFF/COOLING DOWN.
DO NOT attempt to clean oven during the cool
down cycle. Cooling takes appx. 90 minutes.
CAUTION: DO NOT apply pressure to the
wave guide covers. Breaking will result in a
non-warranty service call.
†
x
†
Step 7: Wipe Out Oven Interior
º
WARNING: The oven operates at appx. 500 F
†
Wipe oven door, bottom element, and cook
º
(260 C) and may cause injury if not allowed
cavity using a damp towel.
time to cool properly.
Step 8: Clean Lower Access Panel Area
Step 2: Remove the Lower Access Panel
x
†
DO NOT spray any chemical in this area.
†
Wipe out any crumbs that have collected.
Step 9: Lower the Bottom Element and Reinstall the
Cooking Surface and Lower Access Panel
Step 3: Remove and Clean the Cooking Surface
†
If rack, wash, rinse, and sanitize.
Step 10: Apply Oven Guard and Clean Oven Exterior
†
If baking stone, gently dry-scrub with nylon pad.
If the stone gets wet, let it thoroughly air-dry.
†
Spray Oven Guard on towel. Wipe sides of cook
cavity and inside of door.
Step 4: Lift Bottom Element
x
†
DO NOT spray Oven Guard directly into cook
cavity or wipe on nozzle plates/bottom element.
Wipe the oven exterior with a clean, damp towel.
Oven is ready to turn on.
†
Be sure the bottom element is cool prior to lifting.
†
†
WARNING: The bottom element operates at
º
º
appx. 1000 F (537 C).
Download from Www.Somanuals.com. All Manuals Search And Download.
Theory of Operation
Download from Www.Somanuals.com. All Manuals Search And Download.
THEORY OF OPERATION
7
THEORY OF OPERATION
The TurboChef NGC (Tornado) oven utilizes
three independent heat transfer mechanisms to
rapidly cook food.
Should a problem arise with any of the compo-
nents listed below, please turn to the appropriate
section within this manual for further instructions.
The systems are as follows:
For the purpose of this manual, each independent
heat transfer mechanism is individually identified.
For instance, if an oven is experiencing difficulties
browning the food, focus on CONVECTION SYSTEM
and/or BOTTOM IR AND CCV. Focus on MICROWAVE
SYSTEM if the oven is browning the food but not
heating the inside.
†
Convection
†
Infrared energy
†
Microwave energy
By combining these mechanisms along with the
ability to control each mechanism independently,
the NGC (Tornado) oven is able to reduce the cook
time of most foods by 70-90 percent.
Part numbers are included on illustrations (where
applicable) and in the back of this manual. If an
item is not illustrated, the part number is provided
in the text.
Figure 5 below represents the oven’s different sys-
tems and the critical components of each system.
Chapter 4
Chapter 5
Chapter 7
Chapter 8
CONTROL SYSTEM
MICROWAVE SYSTEM
CONVECTION SYSTEM
BOTTOM IR AND CCV
I/O Control Board
Keypad
Magnetrons
Convection Heater
Bottom Infrared Element
Catalytic Converter
High Voltage Transformers Blower Controller
Display
Mechanical Relays
Solid State Relay
Filament Transformers
High Voltage Capacitors
High Voltage Diodes
Fuses
Blower Motor
Hi-Limit Thermostat
FIGURE 5: NGC (Tornado) Systems and Critical Components
Download from Www.Somanuals.com. All Manuals Search And Download.
8
THEORY OF OPERATION
GLOSSARY OF COMMON OPERATING TERMS
Off State
º
º
All the oven’s control systems are off and the cook cavity temperature is below 150 F (66 C).
Cool Down
A subset of the OFF STATE. During COOL DOWN, the oven will circulate the main convection blower until
º
º
the cook cavity temperature is below 150 F (66 C).
Ready State
The oven has successfully warmed to the predefined set temperature. At this point the oven control is
ready to receive cook commands via the keypad. The oven will maintain the set temperature in the
READY STATE.
Set Temperature, Cook Cavity (CCSP)
Predefined temperature of the cook cavity at which the oven cooks.
Set Temperature, IR Element (IRSP and IRSI)
IRSP is the set temperature of the IR element during a given cook cycle. Settings are determined on a
per-recipe basis. IRSI is the set temperature of the IR element during the READY STATE (or “idle”). IRSI
setting can be adjusted in the TEST MODE (page 16).
Actual Temperature, Cook Cavity (TCC)
The actual temperature registered by the cook cavity thermocouple.
Actual Temperature, IR Element (TIR)
The actual temperature registered by the IR element.
Edit Mode
Enables the user to change recipe and CCSP/IRSP temperature settings.
Warm-Up
The mode in which the oven warms itself to the set temperature.
Soak
The mode in which the oven temperature has reached the CCSP, and remains in warmup for an addi-
tional 8 minutes to allow cook cavity surfaces to warm. The oven will proceed to soak only if warm-up
º
º
was initiated when TCC < (CCSP - 126 F) or TCC < (CCSP - 66 C).
Cook Cycle
A period of operation as defined by a recipe.
Test Mode
A special diagnostic mode that enables the service technician to turn on and off all oven systems
independent of one another, check oven statistics, and set the IRSI.
Download from Www.Somanuals.com. All Manuals Search And Download.
THEORY OF OPERATION
9
Keypad
The primary interface for the operator.
Display
Displays all visual information to the operator.
Self-Test (STEST)
A special diagnostic function that tests all critical subsystems to determine their operational state.
Recipe
A set of user-defined Events that determine a cook cycle.
Events
A single operational element that is a part of a recipe. Each recipe may have up to six events depending on
programming. Each event can be set between 0 and 100% of the total cook time.
Total Cook Time
The total duration of a recipe.
Percentage (%) Time
An event subset that specifies the duration of the event. The sum of all event time percentages for a recipe
must equal 100%.
Percentage (%) Air
An event subset that specifies the relative amount of impingement airflow (speed of convection motor) dur-
ing an event. Valid between 10 and 100%.
NOTE: Maximum 100% = 7100 RPM blower motor speed. Blower motor speed scale is linear.
Percentage (%) Microwave (WAV)
An event subset specifying the microwave cycle during the event. Valid between 0 and 100%. For example,
if WAV is set to 30%, then microwave would be present in the cook cycle for 3 out of every 10 seconds.
Fault Code
A code assigned to an instance that the control considers to be a failure. Upon discovering a fault, the
control will display the fault code and a brief description of the failure. The oven will also log faults F1
through F6 in the Fault Log. See page 11 for more detail on faults and for viewing the fault log.
Download from Www.Somanuals.com. All Manuals Search And Download.
Fault Codes
Download from Www.Somanuals.com. All Manuals Search And Download.
FAULT CODES
11
The NGC (Tornado) oven has the ability to continually
monitor and log various fault conditions. Some fault
conditions will terminate cook cycles, while others
will not. Please refer to the fault code table on
page 12 for more detailed information.
NGCVXXXX XXXXXX
S/N XXXXXX
COOK COUNT
0
0
0
0
0
0
0
F1 BLOWER
F2 LOW TEMP
F3 MAG CURR
F4 MONITOR
F5 MAG TEMP
F6 TEMP
When a fault is detected, the Fault Log will incre-
ment. However, if the fault is subsequently cleared
by some action, whether service related or not, the
Fault Log will not decrement.
TO VIEW FAULT CODES
FIGURE 6: Fault Log
To view the Fault Log, simultaneously press the “4”
and “6” keys while the oven is in the OFF STATE.
The oven will display all faults logged. Figure 6.
F2: Cook Temperature Low
Fault is displayed if the cook cavity temperature is
º
º
Each fault will log up 255 instances before rolling
back to zero. To zero the log, see pages 14-15
(TEST MODE).
more than 84 F (47 C) below the set temperature
after five (5) seconds into a cook cycle.
The fault is cleared from the display at the onset of
cooking if the cook cavity temperature is within
NOTE: The Fault Log also displays cook counts,
which will log up to 65,535 cook cycles. In order
for the control to log a cook cycle, the oven must
complete the first event of any given recipe. If a
recipe has only one event, the oven must complete
the entire cook cycle in order to count it.
º
º
84 F (47 C) of the set temperature or when the
heater is tested in the TEST MODE.
F3: Magnetron Current Low
Fault is displayed when the current transformer
(CT) on the I/O control board does not detect
enough current. The fault is monitored when the
microwave is on during a cook cycle or self-test.
FAULT CODE DEFINITIONS
F1: Blower Running Status Bad
Fault is displayed when the motor controller
indicates no running status.
The fault is cleared from the display at the onset of
a cook cycle if the CT detects current or when the
magnetron is successfully energized in TEST MODE.
The motor and motor controller are monitored con-
tinuously in all modes with special handling in SELF F4: Door Monitor Defective
TEST and TEST MODE. If a fault is detected, the con- Fault is displayed when the control detects that the
trol will terminate a cook cycle and display F1:
BLOWER. Upon turning on the oven, the control will
attempt to restart the motor. If the restart is suc-
cessful, the fault code will be cleared. The fault is
monitor interlock switch unlatches before the pri-
mary or secondary interlock switches.
In addition, this fault will blow the F3 fuse if the
also cleared from the display at the onset of cooking microwave high voltage system is energized when
or when the blower motor is tested in TEST MODE.
the fault occurs. The fault is cleared from the display
when the oven is powered off and then back on.
Download from Www.Somanuals.com. All Manuals Search And Download.
12
FAULT CODES
NOTE: Door interlock switches are in parallel. See thermocouple temperature is below the indicated
OVEN SCHEMATICS, pages 55-63. The fault is moni- limit.
tored during a cook cycle, or in SELF TEST when the
microwave is on.
F7: Thermocouple Open
Fault does not log in counter. Fault is displayed
when the control detects that either the IR or CC
thermocouple is “open.”
F5: Magnetron Over Temperature
Fault is displayed when either magnetron thermo-
stat is “open.”
†
†
º
999 F/C indicates CC thermocouple is “open.”
º
The fault is cleared from the display at the onset of
a cook cycle if the thermostat is closed or when the
magnetron is successfully tested in TEST MODE.
1999 F/C indicates IR thermocouple is “open.”
Fault is cleared when the control detects continuity
on the open thermocouple circuit.
F6: EC (Electrical Compartment) Temperature High
Fault is displayed when the EC thermocouple
F8: Heat Low
º
º
exceeds 158 F (70 C). It is monitored once per
minute.
Fault is not logged in counter. Displays during
WARM UP or SELF TEST if the cook cavity tempera-
º
º
ture (TCC) fails to rise at least 14 F (7 C) within a
The fault is cleared from the display when the EC
given thirty (30) seconds.
FAULT CODE TABLE
FAULT CODE AND DESCRIPTION
WHEN ACTIVE
REFER TO
Warm - up Idle Mode Cook Mode Self-Test
X
X
X
X
X
X
X
X
X
X
Page 22
Page 23
Page 34
Page 46
Page 28
Page 14
F1: Blower Running Status Bad
F2: Cook Temperature Low
F3: Magnetron Current Low
F4: Door Monitor Defective
F5: Magnetron Over Temperature
F6: EC Temperature High
F7: Thermocouple Open
F8: Heat Low
X
X
X
X
X
X
X
X
X
Page 21
Page 22, 49
Fault codes are listed in order of hierarchy. For example, if during cooking the oven experiences an F1
and F2 fault, the oven will report only the F1 fault because the software will halt all actions upon discov-
ering the F1 fault. F7 and F8 faults are displayed on the primary screen and are not displayed or counted
in the Fault Log.
NOTE: All Fault codes listed in bold will terminate a cook cycle upon discovery. Any fault occurring in
a cook cycle will be logged in the Fault Log.
Download from Www.Somanuals.com. All Manuals Search And Download.
The Control System
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONTROL SYSTEM
13
The Control System is comprised of the components
NOTE: The part numbers for each component can
that signal, sense, command, and switch the oven’s be located on the drawings found throughout and
various components. Figure 7 shows a functional
diagram of all the components that make up the
Control System.
at the end of this manual.
+24VDC
DUAL
SSR
K1
K2
K3
MECH
RELAY
K6
MECH
RELAY
MECH
RELAY
MECH
RELAY
K5
K4
3(+) 4(-)
(U.S. ONLY)
3(+) 4(-)
+
24 VDC
-
+
24 VDC
-
+
24 VDC
-
+
24 VDC
-
L
+24VDC
24VDC
POWER
SUPPLY
+V
-V
+24VDC
N
MONITOR SWITCH
NC
C
K7
RELAY
NO
MONITOR
INTERLOCK
COMMON
+24VDC
BMSC
FOR MORE DETAIL, SEE FIGURE 37
-
24 VDC
+
4
3
2
1
IR ELEMENT COMMAND
+24VDC
240 VAC
3 PHASE
OUT
0-10V
I/O COM
ENABLE
I/O COM
1
SPD
CMD
CONVECTION HEATER COMMAND
2
3
4
5
6
MAGNETRON COOLING FAN COMMAND
PRIMARY SWITCH
PRIMARY SWITCH
INTERLOCK
200-240
VAC IN
STATUS OK
GROUND
NC
C
3
2
1
I/O
NO
CONTROL
SECONDARY SWITCH
SECONDARY SWITCH
INTERLOCK
NC
C
BOARD
NO
VOLTAGE INPUT
COMMON
VOLTAGE
COMMON
SENSOR
U.S. ONLY
A (-)
C (+)
IR THERMOCOUPLE
EC THERMOCOUPLE
VFD
DISPLAY
A (-)
C (+)
A (-)
C (+)
CC THERMOCOUPLE
1
1
2
2
14
14
1
1
2
2
14
14
KEYPAD
FIGURE 7: NGC (Tornado) Control System
Download from Www.Somanuals.com. All Manuals Search And Download.
14
THE CONTROL SYSTEM
CONTROL SYSTEM COMPONENT DESCRIPTIONS
IR Thermocouple
Type K Thermocouple. Embedded in the IR ele-
ment, the IR thermocouple measures the inter-
nal/sheath temperature of the IR element. Valid IR
24 VDC Power Supply
24 VDC output at 40 watts. Supplies control
voltage for I/O control board, 24 VDC mechanical
relays, and solid state relays.
º
º
º
set points are between 500 F (260 C) and 1150 F
º
º
(621 C). The display indicates 1999 F/C if the
thermocouple is “open”.
K1 Mechanical Relay
240 VAC, 30 Amp, Double Pole, Double Throw, 24
VDC Relay Coil. Switches power to the magnetron
filament transformers.
EC Thermocouple (P/N 700-1199)
Type K Thermocouple. Thermocouple measures the
temperature of the electrical compartment. If the
temperature within the electrical compartment is
K2 Mechanical Relay
º
º
above 158 F (70 C), the control displays F6: EC
TEMP. The control board checks the EC tempera-
ture every 60 seconds.
240 VAC, 30 Amp, Double Pole, Double Throw, 24
VDC Relay Coil. Switches power to the magnetron
high voltage transformers.
CC Thermocouple
K3 Mechanical Relay
Type K Thermocouple. Thermocouple measures
the temperature of the re-circulating impingement
airflow. Valid CC set points vary depending on
240 VAC, 30 Amp, Double Pole, Double Throw, 24
VDC Relay Coil. Safety interlock device designed to
short L1 and L2 if the monitor switch opens before
the primary or secondary interlock switches.
º
software. If the display indicates 999 F/C, the ther-
mocouple is “open.”
K4/K5 SSR
BMSC
240 VAC, Dual 40 Amp Solid State Relay. K4
(right) controls the convection heater and K5 (left)
controls the IR element.
Proprietary Brushless DC Motor Controller.
Designed solely to operate the blower motor.
VFD (Display)
Vacuum Fluorescent Display.
K6 Mechanical Relay (North America Only)
240 VAC, 30 Amp, Three Pole, Double Throw, 24
VDC Relay Coil. Responsible for switching between
the 208VAC and 240VAC taps on the high volt-
age and filament transformers.
Keypad
5x9 Matrix Membrane Switch. Keypad is connected
to the I/O control board via 14-pin flat cable.
K7 Relay
Voltage Sensor (North America Only)
24 VDC, 20 Amp, Sealed. Starts with command
from I/O board; switches magnetron cooling fan on
and off. Timer for switching off mag fan is 4:15
after filament switches off.
Proprietary device designed to measure incoming
line voltage and switch between 208 and 240 VAC
operation. The device measures and allows the user
to configure the oven only when the oven is first
powered on. Voltage sensor will default at 240
VAC.
Interlock Switches
Primary, Secondary, and Monitor Interlock Switches .
Must be actuated by the oven door. When the door
opens, the order is: P, S, M.
TEST MODE
The Test Mode allows the service technician to
operate the oven’s subsystems individually. It also
allows the operator to configure various presets.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONTROL SYSTEM
15
TEST NGC XXXXX
TEST NGC XXXXX
CC 810F
IR 5000F
CC 810F
IR 5000F
BLOWER
FAULTS
STEST
HEATER
MGTRON
IR ELE
DIAG
0ELEC
F/C
COOKS
ACCUM
IR SI
P
S
M
t
h
i
A
W
P
S
M
t
h
i
A
W
FIGURE 8: Accessing Test Mode
FIGURE 9: Test Mode - Screen 1
FIGURE 10: Test Mode - Screen 2
To enter TEST MODE (Figure 8):
Self-Test Function (Screen 1)
1. Press the BACK key until the display is in the OFF The STEST key initiates a self-test to test all major
STATE.
components of the oven (including door switches).
To run the self-test, press the corresponding soft
key once. Press the BACK key to return to the OVEN
OFF/COOLING DOWN mode.
2. Simultaneously press BACK and ENTER keys.
3. When prompted, enter the access code: 9-4-2-8
and press ENTER.
The TEST MODE displays the software version, actu- Heater Test (Screen 1)
al cook chamber temperature, and actual IR element Press the HEATER key to turn the heater on. Heater
temperature at the top of the screen. The TEST
will remain on until key is pressed again to turn it
MODE consists of 2 screens (Figures 9 and 10). To off. If the blower speed is 0, the blower speed is
display the second screen, press either the UP or
DOWN key. To test a component or sub-system,
press the corresponding soft key.
set to idle airflow (10%).
Magnetron (Screen 1)
Press and hold the MGTRON key to test the mag-
netrons. Doing so requires a 5-second warm-up
period. Once the MGTRON key is released, the high
voltage supply is switched off to the magnetron
and the magnetron will stop radiating; however,
the power is still supplied to the magnetron cooling
fan for an extra 4 minutes, 15 seconds.
TEST FUNCTION OPTIONS
Blower Speed (Screen 1)
The BLOWER key increments the blower motor
speed in 10% increments. When the speed is
100%, the next press sets the speed to 0%.
NOTE: If this function is being used to expedite
cooling, open the oven door to further expedite.
IR ELE (Screen 1)
Pressing the IR ELE key will turn on the IR
element. When pressed, the screen will read IR
ELEMENT ON. Press the IR ELE key again to turn it
off.
Faults (Screen 1)
Pressing the FAULTS soft key will display all the
accumulated faults in the Fault Log. Press “0” to
zero the fault counter. For more information, see
page 11.
Download from Www.Somanuals.com. All Manuals Search And Download.
16
THE CONTROL SYSTEM
STATUS INDICATORS
Diagnostic Display (Screen 2)
The DIAG key turns on or off the diagnostic display
feature. When this feature is enabled, the oven will
display temperature and cook cycle parameters when
the oven is cooking or idle.
See Figures 9 and 10 on page 15.
P
S
M
t
h
i
Primary switch – closed or open
Secondary switch – closed or open
Monitor switch – closed or open
Magnetron thermostats – closed or open
Main convection heater – off or on
IR element – off or on
In addition, the status indicators are displayed on the
bottom of the screen. When a status indicator is
highlighted/backlit the corresponding system is off
or open. For example: W would indicate that the
Microwave System is off.
A
W
Blower motor controller – enabled or disabled
Microwave current – Less than or greater than 7
Amps*
The STATUS INDICATOR section below offers a more
detailed description of each indicator.
* Microwave (W) status indicator is not
highlighted/backlit when the current is more
than 7 Amps.
COOKS (Screen 2)
Press once to display the total number of cook counts
for all recipes. Press again to display the total amount
of time the oven has been in cook cycles.
Status indicators are displayed at the bottom of the
display screen when the oven is in TEST MODE, or
during normal oven operation if in DIAGNOSTIC MODE
(DIAG was turned on). Refer to Figures 9 and 10.
ACCUM (Screen 2)
Press once to display the total amount of time the
magnetrons have been on. Press again to display the
total amount of time the oven has been on.
If a status indicator is highlighted/backlit, the item or
component is in an un-energized or off state.
Conversely, if a status indicator is not highlighted,
the component is in an energized or on state.
Electronic Compartment Temperature (Screen 2)
ºELEC key displays the temperature inside the
electronic compartment.
The
PROGRAMMING
Edit Mode
The EDIT MODE enables the operator to manually alter
recipes and the cook cavity temperature (CCSP).
F/C (Screen 2)
Changes how the oven’s temperature units are dis-
played. The F/C key alternately selects Fahrenheit or
Celsius.
To access EDIT MODE:
1. Simultaneously press the UP and DOWN keys.
2. When prompted, enter the access code “9” and
then press the ENTER key.
IR SI (Screen 2)
Displays the idle IR set point. This temperature is a
factory setting and should never be altered. If an
incorrect temperature has been entered, consult the
factory before changing this value.
NOTE: If this does not provide access, refer to page 19
for enable/disable codes.
Changing the Cook Chamber Temperature
This temperature is a factory setting - exercise caution
before altering it. For best results, consult the factory
before changing this value.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONTROL SYSTEM
17
GROUP A
EDIT GROUPS
<
GROUP 1
ITEM 1
>
ITEM 1
GROUP A
ITEM 5
GROUP E
0
COUNT
COOK TIME
IR SETPT
00:00
5000F
ITEM 2
ITEM 3
ITEM 4
GROUP B
GROUP C
GROUP D
ITEM 6
ITEM 7
ITEM 8
GROUP F
GROUP G
GROUP H
%TIME %AIR %WAV
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
1
XXX
XXX
XXX
XXX
XXX
XXX
2
3
4
5
6
SAVE
TEST
FIGURE 12: Select Recipe
FIGURE 13: Edit Recipe Settings
FIGURE 11: Select Group
To change the cook cavity temperature (CCSP),
press the UP and DOWN keys. Temperature ranges
vary depending on software. Once you have selected
the correct temperature, press the ENTER key to con-
firm and advance to the next screen.
a. Cook time
Total duration of the cook cycle. Enter the
desired time and press ENTER.
b. IR element temperature (IRSP)
The temperature the lower radiant element
will maintain during the entire cook cycle.
Altering a Recipe
º
º
Most NGC (Tornado) oven models contain 128
unique recipes. The display shows two (2) pages each
with eight (8) recipe groups. Each recipe group con-
tains eight (8) recipes. See Figures 11 and 12.
Valid temperatures are between 500 F (260 C)
º
º
and 1150 F (621 C).
c. Events 1…6
Use the keypad and ENTER key to enter values
for % TIME, % AIR, and % WAV.
To alter a recipe:
†
1. Enter the EDIT MODE (see page 16).
Sum of % TIME for all events must = 100.
The operating system will not allow a
2. Enter the access code “9” and set the CCSP. The
screen displays the first set of eight (8) recipe
groups. To access the second set of eight (8)
recipe groups, press either the UP or DOWN key.
combination of events not equal to 100%.
The % AIR parameter is valid between 10
and 100%.
The % WAV (microwave) parameter is valid
†
†
between 0 and 100%.
3. Select the recipe group that contains the individ-
ual recipe you wish to alter. Select the recipe you
wish to alter by pressing the soft key correspon-
ding to the recipe item. Figures 11 and 12.
5. After making changes, test the recipe by
pressing the TEST soft key. Once the oven has
warmed to the CC set point, press the TEST
soft key again to begin the test cook.
4. Use the UP and DOWN keys to navigate through
the recipe settings. Use the keypad and ENTER key
to alter any of the following three (3) parameters
(see Figure 13):
6. Once satisfied with the recipe, press SAVE to
permanently store changes.
7. Press the BACK key until exited from EDIT MODE.
Download from Www.Somanuals.com. All Manuals Search And Download.
18
THE CONTROL SYSTEM
OVEN OPTIONS
Loading a Menu from a Smart Card
1. Ensure the oven is in the OVEN OFF/COOLING
DOWN mode.
Done Screen
To enable/disable the Done Screen (Figure 15), see
the next page. Enable the Done Screen to:
2. Enable the LOAD MENU function (page 19). The
oven will return to the Off screen.
†
Cook an item longer after the end of a cook cycle.
Save an adjusted cook time (only if Time Screen is
†
also enabled).
3. Remove the lower access panel (Figure 14).
4. Insert smart card into oven (Figure 14).
5. Press the bottom-left soft key.
Time Screen
To enable/disable the Time Screen (Figure 16), see
the next page. Enable the Time Screen to:
†
Adjust the cook time before initiating a cook cycle.
†
Save an adjusted cook time.
6. Select LOAD MENU FROM CARD. The menu on
the smart card will load to the oven.
Snooze Mode
To enable/disable the Snooze Screen, see the next
page. Enabling the Snooze Screen will allow the oper-
ator to set the oven in a mode during which all oven
operations are turned off, but the heaters remain on.
The cook cavity will remain at the set temperature,
7. When this process completes, the oven will
beep. Remove the smart card and reattach the
lower access panel.
8. If the oven is a Subway oven, disable the LOAD
MENU function (page 19). For all other ovens,
leave it enabled.
º
º
and the IR temperature will drop 200 F (104 C)
below the IRSI. This allows fast recovery when the
oven is again turned on.
ENTER COOK TIME
DONE
00:20
SAVE
TIME
COOK
MORE
START
FIGURE 14: Inserting Smart Card
FIGURE 16: Time (Start) Screen
FIGURE 15: Done Screen
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONTROL SYSTEM
19
USER CONFIGURABLE OPTIONS - ENABLE/DISABLE CODES
The following codes enable and disable each function/screen listed. They do not take you to the function/screen.
After each code, press ENTER. To enable, press 9 after entering code (except S-A-V-E, W-A-V-E). To disable, press
any key (except 9) after entering code.
Function/Screen
Simultaneously Press
Enter Key Code
Done Screen w/out “Save Time”
BACK & ENTER
3-6-6-3 (D-O-N-E)
Done Screen w/ “Save Time” - step 1
Done Screen w/ “Save Time” - step 2
BACK & ENTER
BACK & ENTER
3-6-6-3 (D-O-N-E)
8-4-6-3 (T-I-M-E)
Edit Recipe Mode
UP & DOWN
8-4-3-3 (T-I-D-E)
6-3-6-8 (M-E-N-U)
Load Menu from Card
BACK & ENTER
Save Menu to Card - step 1
Save Menu to Card - step 2
BACK & ENTER
BACK & ENTER
6-3-6-8 (M-E-N-U)
7-2-8-3 (S-A-V-E)
Snooze Screen
BACK & ENTER
BACK & ENTER
BACK & ENTER
7-6-6-9 (S-N-O-Z)
8-4-6-3 (T-I-M-E)
9-2-8-3 (W-A-V-E)
Time Screen (Figure 16)
Timed Mag Test
- Some codes are not available on some ovens.
- Oven must be in Off or Cooling Down mode.
USER CONFIGURABLE OPTIONS - ACCESS CODES
The following codes allow access to each function/screen listed. To enable/disable these codes (where applicable),
see above. After each code, press ENTER.
Function/Screen
Edit Recipe Mode
Erase Menu*
Simultaneously Press
UP & DOWN
Enter Key Code
9 (or as specified - see “Set PIN” below)
3-7-2-7 (E-R-A-S)
BACK & ENTER
Load Menu from Card
Master Reset
Bottom-left, then upper-mid soft key
9-4-7-1
BACK & ENTER
Save Menu to Card
Set PIN**
Bottom-left, then lower-mid soft key
3-3-4-8 (E-D-I-T)
UP & DOWN
BACK & ENTER
BACK & ENTER
1 & 3
Test Mode
9-4-2-8 (W-H-A-T)
Unit Test
8-6-4-8 (U-N-I-T)
View Cook Counts
View Faults***
Zero Cook Counts*
4 & 6
BACK & ENTER
6-7-3-9 (O-R-E-Z)
- Oven must be in Off or Cooling Down mode.
*
To execute, press 3 after entering code.
** Set PIN after entering code. Accessing “Edit Recipe Mode” will now require new PIN instead of 9.
*** To view voltage, press ENTER. To initiate a self test, press the corresponding soft key from the voltage screen.
Download from Www.Somanuals.com. All Manuals Search And Download.
20
THE CONTROL SYSTEM
6
5
7
1
4
8
10
2
9
3
FIGURE 17: Control System Panel Enclosure and Parts
CONTROL SYSTEM PANEL PARTS
6. 100193
3-Pin Power Cable
7. 100184
26-Pin Ribbon Cable
Figure 17.
8. NGC-1110-1
NGC-1110-2
NGC-1110-3
NGC-1110-4
9. 100506
Keypad, NGC, Standard
Keypad, NGC, SWY
Keypad, NGC, SBK
Keypad, NGC, OUT
Smart Card Reader
1. NGC-1040
NGC-1209
2. 102960
3. 100508
(Varies)*
Cover, Keypad/Display, Std
Cover, Keypad/Display, SBK
Nut, 4-40, Stainless
Smart Card, Blank
Smart Card, Programmed*
Display Svc Kit (includes
Items 5, 6, and 7)
10. 100182
Smart Card Reader Cable
4. NGC-3023
* Contact TurboChef (800.90TURBO or
+1 214.379.6000) for more info/part numbers.
5. 101954
Spacer, 1/2” Lg, Aluminum
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONTROL SYSTEM
21
CONTROL SYSTEM TROUBLESHOOTING
ISSUE
RESOLUTION
No Display (Blank)
1. Verify power 208 VAC or 240 VAC is going to the oven correctly.
If not, correct the voltage supply.
2. Control DOES NOT beep when any key on the keypad is pressed.
Check power going to the 24VDC power supply. Supply must have
208 or 240 VAC across L and N terminals.
†
If there is no voltage, replace F1 and F2 fuses.
†
If the voltage is OK, verify output of power supply is 24 VDC.
If there is no output, change the power supply. If the power
supply is 24 VDC, see below.
Output is 24VDC:
Verify I/O control board has 24 VDC by checking the voltage on
the D6 diode (striped end) on the I/O control board to chassis.
Reference page 54 for a schematic of the I/O control board.
†
No voltage: Check wires from power supply to I/O control board.
†
Voltage is 24VDC, but 5VDC is not present on the I/O control
board J3 connector: Replace I/O control board.
3. The control DOES beep when any Key on the Keypad is pressed.
Check all connections between the I/O control board and display.
Correct any loose connections. If connections are OK and 5 VDC is
present on the J3 connector, but there is still no display, replace display.
No Keypad Input
1. Check keypad ribbon cable going to the I/O control board.
†
Cable and connection bad: Replace keypad.
†
Cable and connection OK: Replace the I/O control board.
1. Check the connection of open thermocouple on the I/O control board.
If the connection is OK, verify thermocouple is not an open circuit
by using your ohm meter. The cook cavity thermocouple should
measure approximately 4-5 ohms and the IR thermocouple should
measure approximately 30-40 ohms. Measure at the I/O control board
40-pin connector.
F7: Thermocouple Open
CC Thermocouple
º
Reads 999 F/C or
IR Thermocouple
º
Reads 1999 F/C
†
Thermocouple indicates open circuit: Replace defective thermocouple.
†
Thermocouple OK: Replace the I/O control board.
NOTE: F7 fault is not logged in the fault counter.
Download from Www.Somanuals.com. All Manuals Search And Download.
22
THE CONTROL SYSTEM
ISSUE
RESOLUTION
F1: Blower Running
Status Bad
1. Status Indicator “A” is highlighted/backlit in TEST MODE.
Verify 208 or 240 (USA) / 230 (Intl) / 200 (Japan) / 220 (Latin America)
VAC is going to the motor controller via pins 2 and 3.
†
Motor not running
when commanded.
208/240/230 VAC is present: Verify control wiring from the motor
controller and I/O control board, specifically low-voltage wire OR-9.
If all wires are OK, then refer to page 50 for motor controller
troubleshooting.
†
208/240/230 VAC is not present: Correct wiring going to the motor
controller. Also, check fuses.
2. Status Indicator “A” is still highlighted in TEST MODE.
Refer to page 50 for motor controller troubleshooting.
1. Ensure the K2 mechanical relay is in good working order.
If relay is OK, refer to pages 34-35 (F3: MAGNETRON CURRENT LOW) for
detailed troubleshooting.
F3: Magnetron Current
Low
F8: Heat Rise Low
1. Verify the high-limit thermostat is not tripped.
†
If high-limit is tripped, reset and allow the oven to warm up.
†
NOTE: This message
If high-limit is not tripped, proceed to instructions below.
occurs in WARM UP and
SELF TEST if the oven fails
to warm up in the prede-
termined time period.
High-limit thermostat is not tripped:
Check both K4 and K5 SSRs by activating them in TEST MODE (activate
HEATER and IR ELE). When actuated, the (-) control input of the SSR will
go to 0.00 VDC. When the relay is not actuated, the input will read
-24.00 VDC.
†
If the control voltage is not pulled down during actuation, verify
the wiring between SSR and I/O control board. Replace SSR if wiring
is OK.
†
If the control voltage is pulled down: Refer to Figure 37 on page 47.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONTROL SYSTEM
23
ISSUE
RESOLUTION
F2: Cook Temperature
Low
1. Verify the high-limit thermostat is not tripped.
†
If high-limit is tripped, reset and allow the oven to warm up.
If high-limit is not tripped, follow the instructions below.
†
High-limit thermostat is not tripped.
Place a small water load in a microwave/heat-resistant container
(approx. 275 ml) in the oven and place the oven in TEST MODE. Press
the MGTRON key to actuate the microwave. While holding down the
MGTRON key, watch the CC and IR temperatures. If either temperature
bounces substantially, there may be a noise (EMI) problem.
To correct this problem, examine the wire routing for each
thermocouple wire. If the wires are routed near any high voltage
components such as the magnetron or high voltage transformers, re-
route the wires. If this does not correct the problem, verify that both
magnetrons are securely mounted. Call Technical Support for further
details at 800.90TURBO or +1 214-379-6000.
Download from Www.Somanuals.com. All Manuals Search And Download.
The Microwave System
Download from Www.Somanuals.com. All Manuals Search And Download.
THE MICROWAVE SYSTEM
25
The Microwave System is the most complex system in If during normal operation any of the interlock
the oven. Proper care must be taken during servicing switches open - such as when the oven door opens
to protect both the operator and technician.
- the control will turn off the microwave. If the
monitor switch opens before the primary or sec-
ondary switches (abnormal operation), the monitor
switch de-energizes the monitor relay. When this
occurs, a dead short is placed across L1 and L2.
VOLTAGE DOUBLER CIRCUIT DESCRIPTION
The Microwave System consists of a magnetron
and Voltage Doubler Circuit. The Voltage Doubler The short then blows the F3 fuse, which perma-
Circuit consists of a special step-up transformer, a
capacitor, and a diode.
nently interrupts power to the Microwave System
until all switches are repaired and/or functioning
properly.
MONITOR CIRCUIT DESCRIPTION
Figure 18 shows a schematic of the Monitor
Circuit. Make sure to note the following:
In addition to understanding the Voltage
Doubler Circuit, it is imperative to understand
how the Monitor Circuit operates. The Monitor
Circuit is a failsafe circuit designed to protect the
operator if both the primary and secondary inter-
lock switches fail to operate normally.
†
Primary and secondary switches interlock the
high-voltage control signal. (K2 relay)
†
Normal operation: When the K2 and K3 relays
energize, power is supplied to the high-voltage
transformers.
†
Abnormal operation: When K2 is energized
The Monitor Circuit consists of the primary and
secondary interlock switch, monitor safety switch,
monitor relay, and the F3 fuse. When the oven
door closes during normal operation, the monitor,
secondary, and primary switches close in the order
listed above. When all switches are closed, the
Microwave System is allowed to operate.
and K3 is un-energized (via an opening of the
monitor switch), L1 and L2 short to blow the
F3 fuse and failsafe.
Figure 19 on the following page details the theory
of operation of the Voltage Doubler Circuit.
PRIMARY AND SECONDARY
INTERLOCKS (CLOSED)
K2 HV
RELAY
T1
HV TRANSFORMER
F3 FUSE
20 AMP
(BLOWN)
CDS
3
1
4
7
NC
NO
1
C
LINE VOLTAGE
(L1)
3
6
9
CONTROL
CONTROL
A
B
2
CDP
C
NC
NO
+24 VDC
T2
HV TRANSFORMER
3
1
K3 MONITOR
RELAY
LINE VOLTAGE
(L2)
1
7
4
3
6
2
9
A
B
MONITOR SWITCH
(OPEN)
+24 VDC
CDM
NC
C
CONTROL
NO
FIGURE 18: Monitor Circuit - shown in failsafe state.
Download from Www.Somanuals.com. All Manuals Search And Download.
26
THE MICROWAVE SYSTEM
TRANSFORMER OUTPUT VOLTAGE
MAGNETRON VOLTAGE
+(B)
+(B)
0
+2400 V
0
(A)
(A)
-4800 V
-2400 V
-(C)
-(C)
2400
VDC
2400
VDC
-
+
-
+
-
+
-
4800
VDC
2400
Current
Flow
2400
Current
Flow
+
CAPACITOR CHARGES
ON POSITIVE VOLTAGE SWING
CHARGED CAPACITOR PLUS TRANSFORMER
ON NEGATIVE VOLTAGE SWING
FIGURE 19: Voltage Doubler Circuit Theory of Operation
VOLTAGE DOUBLER THEORY OF OPERATION
MICROWAVE SYSTEM PARTS
Figure 19
Figures 20 and 21
1. The high-voltage transformer steps up the input 11. NGC-3062-1 HV Transformer (2 per oven, 1
voltage to approximately 2400 volts peak (4800
volts peak to peak).
per kit) - USA, Mexico, Brazil,
S. Korea
NGC-3062-2 HV Transformer (2 per oven, 1
per kit) - Europe, Asia, Pacific,
Australia, UK, Ireland
2. The high-voltage capacitor charges to 2400 volts
on the positive going voltage via the high volt-
age diode’s conduction.
NGC-3062-3 HV Transformer (2 per oven, 1
per kit) - Japan
3. The high-voltage transformer plus the charged
high-voltage capacitor supply down to -4800
volts to the magnetron when the voltage goes
negative. (high-voltage diode is back biased.)
12. NGC-3020 High Voltage Capacitor (2 per
oven, 1 per kit) - USA, Mexico,
Brazil, S. Korea
4. The magnetron converts negative input voltage
(and current) to RF energy at 2450 MHz.
NGC-3020-2 High Voltage Capacitor (2 per
oven, 1 per kit) - Europe, Asia,
Pacific, Australia, UK, Ireland,
Japan 50 Hz
WARNING: Do not attempt to measure
these voltages.
100207
High Voltage Capacitor (2 per
oven, 1 per kit) - Japan 60 Hz
Download from Www.Somanuals.com. All Manuals Search And Download.
THE MICROWAVE SYSTEM
27
FILAMENT AND HIGH
VOLTAGE TERMINALS
13
14
12
11
26
27
28
FA
F
25
15
16
24
COOLING
FINS
17
18
19
(ORG)
(BLK)
23
22 21
20 15
ANTENNA
FIGURE 21: Microwave System Parts
FIGURE 20: Microwave System Parts
13. 100481
High Voltage Diode (x2)
15. Continued:
14. Mag Fan Relay, Generic
NGC-3061-2 Filament Transformer (2 per
oven, 1 per kit) - Europe, Asia,
Pacific, Australia, UK, Ireland,
Mexico, Brazil
NGC-3061-3 Filament Transformer (2 per
oven, 1 per kit) - Japan
NGC-3030-1 North America
NGC-3030-4 Europe, Asia-Pacific Multiphase
NGC-3030-7 Europe Single Phase
NGC-3030-12 Brazil Single Phase
Mag Fan Relay, SWY
NGC-3030-2 North America
NGC-3030-6 Europe, Brazil Single Phase
NGC-3030-9 Europe, Asia-Pacific Multiphase
16. 100083
17. 101273
18. 101273
19. 101273
Mag Cooling Fan
K3 Monitor Relay
K2 High Voltage Relay
K1 Filament Relay
20. 100599
F3 Fuse - 20 Amp
Mag Fan Relay, SBK
21. NGC-3015
22. NGC-3017
23. NGC-3016
24. 100186
25. NGC-3015
26. 102070
Magnetron (2 per oven, 1 per kit)
Wave Guide (Rear)
Wave Guide (Front)
Magnetron Wire
Magnetron (2 per oven, 1 per kit)
Magnetron Thermostat
Insulator, Adhesive
NGC-3030-3 North America
NGC-3030-13 Europe, Brazil Single Phase
NGC-3030-14 Indiana/North Carolina
NGC-3030-15 Europe, Asia-Pacific Multiphase
Mag Fan Relay, Additional*
27. NGC-1163
28. 100684
Screw #6 Sheet Metal
15. NGC-3061-1 Filament Transformer (2 per
oven, 1 per kit) - USA, S. Korea
* See Comprehensive Part List, page 79.
Download from Www.Somanuals.com. All Manuals Search And Download.
28
THE MICROWAVE SYSTEM
MICROWAVE SYSTEM COMPONENTS
High Voltage Capacitors
Capacitor rating is 0.91uF, 2500 VDC for USA,
Mexico, Brazil, and S. Korea.
Below is a description of each component within
the Microwave System.
Capacitor rating is 1.15 uF, 2500 VDC for
Europe, Asia, Pacific, Australia, UK, Ireland, and
Japan 50 Hz.
Magnetron
Magnetrons supply the RF energy at 2.45 GHz
and begin to oscillate when they are supplied with
approximately 4.1KVDC at approximately .350 mA.
During operation each magnetron will output a
nominal 1 kW of power.
Capacitor rating is 0.85 uF, 2500 VDC for Japan
60 Hz.
High Voltage Diodes
Rated at 16 kVDC.
High-Voltage Transformers
High-voltage transformers are a ferro-resonant
design which limits fault currents and minimizes
magnetron power changes due to input voltage
changes. The high-voltage transformer supplies
the high voltage for the Voltage Doubler Circuit.
They are controlled via the K2 relay.
Monitor Relay (K3)
The monitor relay, K3, acts as a failsafe device in
the Voltage Doubler Circuit. In its normal un-ener-
gized position, the monitor relay shorts L1 and L2.
If the K2 relay energizes the high-voltage trans-
formers while the K3 relay is un-energized, the F3
fuse will blow.
WARNING: Never attempt to measure
the voltage values of the high-voltage trans-
formers with the high-voltage transformers enabled.
Lethal voltage will be present. Reference page 30
for proper measuring technique.
Magnetron Thermostats
The magnetron thermostats are open-on-rise ther-
mostats. These thermostats are designed to open at
º
º
212 F (100 C), which triggers an F5 fault.
Filament Transformers
For better operation and reliability, the oven
uses separate transformers in order to preheat the
magnetron filament.
NOTE: Both magnetron thermostats are wired
in series. If one opens, the control will switch off
both magnetrons until the thermostats close. The
thermostats are self-resetting.
The control energizes the filament transformers for
approximately five (5) seconds prior to energizing
the Microwave Circuit via the high-voltage trans-
formers. When in operation, the filament trans-
formers supply approximately 3.15 VAC at 10 amps
to each magnetron filament. The filament trans-
formers are controlled via the K1 relay.
Magnetron Cooling Fan
The magnetron cooling fan supplies cooling air for
both magnetrons. The fan operates at 208 or 240
(USA) / 230 (Intl) / 200 (Japan) / 220 (Latin
America) VAC and is controlled via the K7 relay
(see Item 14 on Figure 20).
F3 Fuse
If the oven does not have this relay installed, it is
required that you order the relay kit through
Customer Service. See page 27, item 14 for part
numbers. If you are unsure which kit to order,
determine the software type before contacting
Customer Service.
The F3 fuse is a 20-amp, class CC fuse designed to
blow in case of an over-current scenario, such as a
high-voltage transformer or capacitor failure. The
fuse also blows if the Monitor Circuit trips the
failsafe.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE MICROWAVE SYSTEM
29
31
32
33
34
35
36
29
30
37
FIGURE 22: Wave Guide Cover/Wave Guide Removal and Replacement
To determine software type,
1. Make sure the oven is in the COOLING
DOWN/OVEN OFF mode.
2. Simultaneously press the BACK and ENTER keys.
3. Enter code 9-4-2-8 (W-H-A-T) and press ENTER.
4. The top line on the screen will display the word
TEST, followed by the software type (for
example, V2SWY, or TRNADO).
1. Locate the fourteen (14) #8 sheet metal screws
securing the broken wave guide cover. If the
screw heads are dirty, it will be necessary to
clean the heads thoroughly.
CAUTION: Do not strip the screw heads.
2. Remove the fourteen (14) #8 screws. The cover
should come loose with gentle pressure.
WAVE GUIDE COVER REPLACEMENT
x
†
DO NOT remove the two right and left-most
screws (Item 30). These screws secure the wave
guides to the oven floor. Only remove them if the
wave guide is also being serviced.
The wave guide covers keep moisture and debris
out of the wave guides. If contamination gets into
the wave guides, the life of the magnetrons may be
shortened. Be careful to not allow debris to enter
the wave guides when replacing the covers.
3. Remove the old wave guide cover and discard,
unless otherwise specified.
To remove the wave guide covers, reference Figure
22 and follow the steps below:
NOTE: It may be necessary to gently pry the
wave guide covers to remove them from the
oven floor as they are sealed with RTV.
Download from Www.Somanuals.com. All Manuals Search And Download.
30
THE MICROWAVE SYSTEM
4. Using acetone, clean the oven floor where the
new wave guide cover will sit.
4. Remove the two (2) right and left-most screws
(Item 30) that secure the wave guide to the oven
floor.
5. Apply a 1/8” diameter bead of high temperature
RTV (included with Item 29) along the outside
edge of the wave guide cover flanges.
5. The wave guide should now be loose enough to
easily slide out from the right side of the oven.
NOTE: It is important to use the correct high
temperature RTV as supplied by TurboChef.
NOTE: Be careful to not damage the insulation
when removing the wave guide.
6. Place the new wave guide cover in place. Secure
with the fourteen (14) screws provided with Item
29.
6. Install the new wave guide using the mounting
screws provided with the kit (Item 34 if rear
wave guide, Item 37 if front).
7. Wait 15 minutes for RTV to cure.
CAUTION: Do not pinch insulation between
the wave guide and oven bottom.
8. Warm oven to set temperature and re-check the
tightness of screws. Tighten if necessary.
7. Reinstall the wave guide cover.
WARNING: Inside of oven and IR element
are HOT! Use extreme caution during step 8.
8. Reinstall the side panel and apply power to the
oven.
WAVE GUIDE/WAVE GUIDE COVER PARTS
Figure 22
HIGH VOLTAGE AND FILAMENT TRANSFORMER
REPLACEMENT
29. NGC-3036 Kit, Wave Guide Cover (Includes
Item 31 and sealant)
30. 101666
31. 101701
Screws, #8-32 x 1/2, Cap
Screws, #8, SST
Wiring the High-Voltage Transformers
The proper reinstallation of the high-voltage and fil-
ament transformers is critical. Upon removing a
high-voltage transformer, make sure to note where
each wire was installed. Refer to the oven schemat-
ics (pages 55-63) detailing the proper wiring.
Specifically, T1 and T2 are located in the top-right
corner of the schematics.
32. NGC-1047 Support, Frame
33. 102809 Screws, #8-32 x 3/8” CSK (100 )
34. NGC-3017 Assy, Wave Guide, Rear
35. NGC-3015 Magnetron, Rear
36. NGC-3015 Magnetron, Front
37. NGC-3016 Assy, Wave Guide, Front
º
WAVE GUIDE REPLACEMENT
As shown in the schematics, transformers are
º
installed mirror opposite and wired 180 out-of-
1. Remove the wave guide cover. See WAVE GUIDE
COVER REPLACEMENT on page 29.
phase. It is essential for longevity that the high-volt-
º
age transformers remain 180 out-of-phase. This can
be checked by placing a volt meter across terminals
T1-1 and T2-1.
2. Remove the right side panel and frame support
(Item 32).
With the Microwave System energized, the volt meter
will read the incoming voltage (different readings for
different countries). If the meter reads 0 VAC, the
3. If replacing the front wave guide, use the NGC-
3016 kit. If replacing the rear wave guide, use
the NGC-3017 kit.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE MICROWAVE SYSTEM
31
high-voltage transformers are most likely wired in-
phase. As a last check, energize the Microwave
System and verify the voltages between the taps on
each high-voltage transformer. The wiring issue
must be corrected prior to returning the oven to
service, as the voltages must be:
†
NORTH AMERICA: 208 VAC between 1 & 2 and
240 between 1 & 3.
†
LATIN AMERICA: 220 VAC
†
JAPAN: 200 VAC
†
INTERNATIONAL: 230 VAC
NOTE: The terminals with the orange dot or
the orange wire always go to terminal 3 on USA
models.
FIGURE 23: Microwave Survey Meter Placement
WARNING: If the unit fails the radiation
test (leakage greater than 4 mW/cm2), the
oven must be taken out of service immediately until
the defect is corrected. In addition, the CDRH
Regulations 21 Subpart C, 1002.20 requires that
leakage readings of over 4 mW/cm2 must be
reported to the manufacturer.
Wiring the Filament Transformers
The installation of filament transformers is
straightforward. Filament transformers are wired
in-phase and in-line. Refer to the schematics on
pages 55-63, detailing the proper wiring.
Specifically, FT1 and FT2 are located in the
middle-far right edge of the schematics.
Procedure for Measuring RF Leakage
To verify correct wiring (North America), meas-
ure the voltages between terminals 1 & 2 and 1 & 3
on FT1 and FT2. The voltages must be 208 and
240 VAC respectively.
1. Place the oven in WARM UP and allow it to warm
up to the set temperature (CCSP). This should
take approximately 13 minutes if the oven is
starting out cold.
NOTE: The terminals with the orange dot or the
orange wire always go to Terminal 3 on US models.
2. Once the oven has warmed up, place the oven
into TEST MODE (see page 14). Place a water
load into the cook cavity. Water load must con-
form to the following specification:
To verify correct wiring (International), measure the
voltage between the taps on FT1 and FT2. The volt-
age must be 220 VAC (Latin America), 200 VAC
(Japan), or 230 VAC (International).
a. Volume: 275ml ± 15ml
º
º
b. Temperature: 68 ± 9 F (20 ± 5 C)
c. Vessel: Low form, 600 ml beaker with an
inside diameter of approximately 3.35” (85
mm) and made of Pyrex or glass ceramic.
MEASURING RF LEAKAGE FOR MICROWAVE SAFETY
An RF (microwave) leakage test must be performed
at the conclusion of the following service tasks:
3. Position the microwave survey meter as shown
in Figure 23.
†
Door removal, replacement and/or adjustment
†
Wave guide removal and/or replacement
Magnetron removal and/or replacement
4. Press and hold the MGTRON soft key to energize
the Microwave System.
†
Download from Www.Somanuals.com. All Manuals Search And Download.
32
THE MICROWAVE SYSTEM
FA
F
FILAMENT AND
HIGH VOLTAGE
TERMINALS
ANTENNA
FIGURE 24: High Voltage Diode
FIGURE 25: Magnetron
5. While holding the MGTRON soft key, move the sur- former goes to 2400 VPK, the high-voltage capacitor is
vey meter around the outline of the oven door,
keeping the tip of the meter in contact with and
charged to 2400 volts. When the high-voltage wind-
ing starts to go toward negative, the high-voltage diode
perpendicular to the oven door. Record the highest becomes non-conducting with the charged high-volt-
leakage.
age capacitor in series with the high-voltage winding.
When the transformer gets to its negative peak of
-2400 VPK, the voltage applied to the filament is
negative 4500 volts.
6. Using the same procedure, measure the leakage
with the oven door opened to the point just before
the primary and secondary switches disengage.
Record the highest leakage.
WARNING: Never attempt to measure high
voltage directly.
TIP: To hold the oven door open for this
test, back out the top center screw around the
perimeter of the oven door. Continue backing
this screw out until the primary and secondary
interlock switches disengage. As this point, tighten
the screw until both switches re-engage.
How to Check a Diode
1. Disconnect the oven from the power source.
2. Fully discharge the capacitors.
3. Connect the voltage meter in series with the diode.
7. Using the same procedure, measure the leakage
around the oven’s entire exterior surface. Record the 4. Using a multimeter set to DC voltage, connect
highest leakage.
one meter lead to one side of a 9-volt battery
and the other lead to one side of the diode.
HOW TO TEST MICROWAVE COMPONENTS
5. Connect the other side of the 9-volt battery to
the other side of the diode. DC voltage should
only be present on the meter in one direction.
Testing the High-Voltage Diode
The high-voltage diode (Figure 24) is assembled by
connecting several 1000-1500 volt semiconductor
diodes in a series to increase the reverse voltage capa-
bility. In the circuit, the high-voltage diode conducts
to prevent the filament voltage from becoming posi-
tive, thus as the high-voltage winding of the trans-
6. Switch the meter leads on the diode, which will
cause the opposite reading to be visible.
Depending on the voltage of the battery, voltage
between 5-7 VDC should be present in only one
direction and 0-0.1 VDC in the other direction.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE MICROWAVE SYSTEM
33
How to Check a Capacitor
1. Disconnect the oven from the power source.
2. Fully discharge the capacitor.
3. An ohmmeter connected between the filament
terminals (F, FA) should indicate a reading of
less than 1 ohm. Figure 25.
3. Isolate the capacitor from the circuit.
4. Connect the ohmmeter between the capacitor
terminals. The ohmmeter should momentarily
indicate a low impedance and then slowly return
to infinite resistance.
5. Reverse the ohmmeter leads and repeat Step 4.
6. Check each terminal to case. Infinite resistance
(open) should be indicated.
4. A continuity check between either filament
terminal and the magnetron chassis should indi-
cate an infinite resistance (open).
How to Check a High-Voltage or Filament Transformer
1. Disconnect the AC power source and discharge
the high-voltage capacitors.
2. Disconnect all the wires in question going to
the transformer.
How to Check a Magnetron for Open/Shorted Filament
1. Disconnect the AC power source and discharge
the high-voltage capacitors.
2. Isolate the magnetron from the circuit by removing
the wires from the F and FA terminals. Figure 25.
3. Use an ohmmeter to check the impedance of the
primary and secondary winding. Refer to the
high-voltage and filament transformer table below
to determine if the transformer is OK. If the
resistance is different then the table indicates,
replace the transformer.
HIGH VOLTAGE AND FILAMENT TRANSFORMER RESISTANCE TABLE
SECONDARY TAPS AND
RESISTANCE
HIGH VOLTAGE TRANSFORMERS
PRIMARY VOLTAGE, FREQ, TAPS,
AND RESISTANCE
4, Ground, 53.60–65.52 W
NGC-3062-1
208 VAC, 60 Hz, 1 & 2,
0.819–1.001 W
240 VAC, 60 Hz, 1 & 3,
0.972–1.188 W
NGC-3062-2
230 VAC, 50 Hz, 1 & 2,
3, Ground, 57.52–70.30 W
0.972–1.188 W
W
NGC-3062-3
200 VAC, 50/60 Hz, 1 & 2,
3, Ground, 55.75–68.13
0.784–0.958 W
SECONDARY TAPS AND
RESISTANCE
FILAMENT TRANSFORMERS
PRIMARY VOLTAGE, FREQ, TAPS,
AND RESISTANCE
4, 5, very low resistance - if read-
ing is open, transformer has failed.
NGC-3061-1
208 VAC, 60 Hz, 1 & 2,
17.49–21.37 W
240 VAC, 60 Hz, 1 & 3,
20.61–25.19 W
NGC-3061-2
NGC-3061-3
230 VAC, 50 Hz, 1 & 2,
18.99–23.21 W
3, 4, very low resistance - if read-
ing is open, transformer has failed.
200 VAC, 50/60 Hz, 1 & 2,
15.70–19.18 W
3, 4, very low resistance - if read-
ing is open, transformer has failed.
Download from Www.Somanuals.com. All Manuals Search And Download.
34
THE MICROWAVE SYSTEM
MICROWAVE SYSTEM TROUBLESHOOTING
ISSUE
RESOLUTION
Magnetron
WARNING: Never test the secondary voltages. Voltage on this side of the
Troubleshooting
Guidelines
circuit is lethal, reaching up to 5000 volts!
All tests performed on the components are done with the oven unplugged
and the capacitors discharged.
The capacitors in this oven utilize a device that will automatically discharge
the voltage.
WARNING: Always verify the capacitor is discharged before servicing the
components.
Discharging can be done by unplugging the oven and then short across the
red wire on each capacitor to the chassis with an insulated screwdriver.
F3: Magnetron
Current Low
1. Remove the top and right side covers.
2. Enter the test mode. (From the OVEN OFF mode, simultaneously press
BACK and ENTER keys, enter the code 9-4-2-8 and press ENTER).
3. Place amp meter on the brown (US ovens) or blue (International ovens)
"ct" wire for amp reading. Wire is coming from the primary side of the
HV transformers and looping through the black plastic current trans-
former on the main control board and back to the HV transformers.
4. Press and hold the MGTRON soft key on the keypad to energize the
magnetrons.
5. Observe the amperage on the meter. Typical readings are:
†
NORTH AMERICA: 12-14 amps at 240VAC/13-16 amps at 208VAC.
†
INTERNATIONAL: 12-15 amps at 230VAC
†
BRAZIL: 12-15 amps at 220VAC
†
JAPAN: 16-17 amps at 200VAC
If proper amperage appears but takes longer than 2 complete seconds to
appear, call TurboChef Tech support for assistance. If amperage is present
but lower than typical readings, perform the troubleshooting steps in the
previous pages of this section. If amperage is not present, check the condi-
tion of the F3 fuse. Fuse must be a 20-amp fuse and is the right-most of
the three fuses on the bottom of the oven.
If fuse has failed, replace the fuse after troubleshooting (previous pages of
this section). If fuse has not failed, check the incoming (primary side)
voltage to the high-voltage transformers.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE MICROWAVE SYSTEM
35
ISSUE
RESOLUTION
F3: Magnetron
Current Low (cont.)
WARNING: Never try to check the secondary voltages of the High
Voltage Transformers.
With the top cover removed, safe access to the three (if US oven)/two (if
International oven) terminals on the top of the transformers is available.
NORTH AMERICA - Place the AC voltmeter across terminals 1+3. Press and
hold the MGTRON soft key. Voltage present should be 240 +/- 10%.
INTERNATIONAL - Place the AC voltmeter across terminals 1+2. Press and
hold the MGTRON soft key. Voltage present should be 230 +/- 10%.
JAPAN - Place the AC voltmeter across terminals 1+2. Press and hold the
MGTRON soft key. Voltage present should be 200 +/- 10%.
If voltage is present on both high-voltage transformers, perform the compo-
nent troubleshooting steps in the previous pages of this section.
If voltage is not present, check for 24VDC control voltage from I/O board
to the K2 relay. Access voltage reading from the "QC3" connection located
at the bottom right side of the wiring harness. When the MGTRON key is
pressed and held, 24VDC should be present on pins 1+5. Reference the
schematics (pages 55-63) for physical location of pins on QC3 connector.
If voltage is present at the connector, inspect the K2 relay and the wiring.
Unplug the oven and replace relay if necessary.
If voltage is not present at connector, check wiring connections at the con-
trol board on the 40-pin connector. Also check the wiring between the two
connectors. Unplug the oven and replace control board if necessary.
F3 Fuse Blown
Replace the F3 fuse and determine why F3 fuse opened.
Generally, the F3 fuse opens for one of three reasons:
a. HV transformer primary winding shorted: Unplug the oven and
replace the HV transformer. Follow troubleshooting on page 33 to
determine cause of failure.
b. HV capacitor shorted or failing: follow troubleshooting on page 33.
If necessary, unplug the oven and replace the HV capacitor.
NOTE: A failing HV capacitor will typically cause the HV
transformer that supplies power to the failing capacitor to draw
excessive current, which may open the F3 fuse.
Download from Www.Somanuals.com. All Manuals Search And Download.
36
THE MICROWAVE SYSTEM
ISSUE
RESOLUTION
F3 Fuse Blown, cont.
c. Monitor circuit fault: Verify operation of all interlock switches.
In addition, check the Fault Log. If the monitor switch opened prior to
the primary and secondary, the control would have recorded the
occurrence. See page 25 as well as Chapter 6 (Oven Door) for
troubleshooting (see F4 MONITOR).
Mag 1 or Mag 2 Not
Working or Food Not
Cooking Evenly
Determine which magnetron is not oscillating by placing a clamp-on
amp meter on the primary winding of each high-voltage transformer
and energizing the Microwave System.
1. Amp = 0. High-voltage transformer not energizing.
Check K2 relay and wiring going to suspect high-voltage transformer.
†
K2 relay or wiring bad: Replace K2 relay and/or repair wiring.
†
K2 relay OK: Check high-voltage transformer. See the table on page
33 for resistance values. Unplug the oven and replace high-voltage
transformer if defective.
2. Amps = 3 amps on high-voltage transformer. Magnetron is not
oscillating, but high-voltage transformer is energizing.
†
Diodes failed: Unplug the oven and replace the diodes.
†
Diodes OK: Unplug the oven and replace the defective magnetron.
Magnetron Circuit
is Drawing Excessive
Current.
Measure resistance of high-voltage capacitor(s).
Resistance should start out in the megohm range and continue to rise as
the probes are held on the capacitor. If the resistance is low (less than the
megohm range), unplug the oven and replace the capacitor. Visually check
the associated high-voltage transformer primary winding for signs of over-
heating (winding is very dark and discolored). If transformer primary
winding looks bad, replace it.
High Voltage and/or
Determine if the high-voltage or filament transformer(s) is defective.
Filament Transformer(s) Use an ohm meter to measure the primary and secondary winding
Faulty
resistances. Refer to the high-voltage and filament transformer table on
page 33 to determine if the transformer is OK. If the resistance is
different then the table indicates, ensure the oven is unplugged and
replace the transformer.
Replace the wave guide covers. Follow the instructions on pages 29-30 and
Figure 22 on page 29. Inspect the wave guides for debris. If debris is pres-
ent, replace the wave guide and the magnetron.
Wave Guide
Covers Broken
Download from Www.Somanuals.com. All Manuals Search And Download.
The Oven Door
Download from Www.Somanuals.com. All Manuals Search And Download.
THE OVEN DOOR
37
The proper fit and adjustment of the oven door is
essential for safe and reliable operation of the NGC
(Tornado) oven.
3. Locate and remove the #38 screws (3 each side).
4. Remove the plastic caps.
NOTE: The 10x32 screws do not need to be
The oven door provides three primary functions:
1. To protect the operator from the hot
convection airflow.
2. To protect the operator from exposure to
microwave energy.
removed, as they are used for adjusting the door.
5. Remove the oven door by pulling the door away
from the oven. It will slide off the hinges.
3. To actuate the interlock switches.
OVEN DOOR PARTS
Figure 26
38. 102809
REMOVING/REINSTALLING THE OVEN DOOR
#8-32 x 3/8” PFH CSK
To remove or reinstall the oven door, follow the
steps below. Refer to Figure 26.
39. NGC-3067 Assy, Oven Door (Traditional)
NGC-3067-2 Assy, Oven Door (SBK)
40. NGC-1061 Hinge Block
1. Ensure the oven has cooled.
41. 102804
42. 102805
43. 101381
44. 102140
45. 102350
46. 101191
Right Hinge
Left Hinge
#10-32 x 1/2” Hex SS
#10 Flat
#10 Split Lock
Cap, Hole
2. Open the oven door to its full open position.
Locate the two (2) thru holes in the bottom of
the left and right hinge assemblies. Insert a screw
or nail into the holes to keep the hinges open
while removing the oven door.
41
40
38
39
2
42
43 44
45 46
FIGURE 26: Oven Door Removal & Parts
Download from Www.Somanuals.com. All Manuals Search And Download.
38
THE OVEN DOOR
ADJUSTING THE OVEN DOOR
WARNING: Check for excessive Microwave
Leakage after adjusting the Cook Door. See
page 31 for proper procedure.
WARNING: Procedure should be done while
oven is hot. As a result, exercise extreme
caution when adjusting the door.
PREPARING THE OVEN FOR SWITCH ADJUSTMENT
1. Open the oven door and remove the plastic caps.
1. Disconnect the power to the oven and remove
left and right side covers.
2. Ensure that the 3 screws on each side of the door
are tight.
2. Ensure oven door assembly is properly adjusted
and all mounting screws are secured (see previous
section on adjusting the oven door).
3. Remove the control panel, two 11/32” nuts and
wiring from I/O board.
3. Ensure the left and right hinge assemblies are
properly mounted to the oven flange.
4. Loosen the hex screws and close the door.
5. Tap the center of the door to allow door and
frame to align properly.
Oven Burn-In Procedure
If the oven is already at its set temperature at the
time of service, skip this procedure.
6. Tighten screws and reinstall the control panel.
1. Apply power to oven.
7. Plug in the oven and perform a MW leak test (see
page 31 for instructions).
2. Simultaneously press the BACK and ENTER keys.
3. Enter 8-6-4-8 (U-N-I-T), then press ENTER.
Critical Adjustment Notes
1. The doors in Figures 27 and 28 are adjusted
incorrectly. Note how the bottom (Figure 27)
and top (Figure 28) of the door can be rotated
away from the Flange.
4. Press BURN-IN. The oven will warm up and
idle for 25 minutes.
ADJUSTING THE PRIMARY AND SECONDARY
INTERLOCK SWITCHES - OLD SWITCH SETUP
CORRECTIVE ACTION: Loosen the hex screws
and push the door towards the flange and re-
tighten. The hinge springs will naturally pull the
door to the flange. Tapping the center ensures a
level surface and a proper seal, as opposed to
pushing one end (which could cause the opposite
end to lift away from the flange).
The old switch assembly is identifiable by the pri-
mary and secondary interlock switches being
located on the left side of the oven. Also, the serial
number of the oven will follow the formatting
below (X = variable digit/letter):
NGC-XXXXX (North America)
NGCXX-XXXXX (International)
Pull the door open only 0.25” (6 mm) and let go
of the handle. The door must completely snap shut
on its own. If the door sticks and force is needed
to finish closing it, it is out of adjustment.
To properly adjust the switches, follow the proce-
dure below:
NOTE: See Figure 26, page 37, Items 43-46 for illus-
tration of hardware.
1. Ensure the oven door is adjusted properly. Refer
to the previous section on adjusting the oven
door.
2. Unplug the oven.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE OVEN DOOR
39
FIGURE 28: Mis-adjusted Oven Door
FIGURE 27: Mis-adjusted Oven Door
3. Open and close the door several times to ensure it
closes smoothly and the door actuator (Item 47)
clears the slot in the flange. Reference Figure 29.
The actuator must not hang or rub the opening
or flange. Carefully bend to clear opening.
because the door can move as a result of temper-
ature change.
9. Securely tighten Items 49 and 50 after any final
adjustments have been made.
4. While the oven door is closed, verify that the
10. Complete the steps for measuring RF leakage
found on page 31. Make further adjustments if
necessary.
º
bottom of the toggle is 85 to the bottom of the
frame (Figure 29). If not, use items 75 and 76
(page 42) to achieve proper angle.
NOTE: High-temperature grease (Item 62) must be
present between the torsion spring and the switch
bracket assembly to ensure smooth action.
5. Temporarily adjust the primary and secondary
interlock switches by loosening the #8-32 screw
(Item 49) and the two (2) #4-40 screws (Item
50). Figure 29.
PRIMARY AND SECONDARY INTERLOCK SWITCH
ADJUSTMENTS AND PARTS
Figure 29
6. Rotate the interlock switches (Item 51) until the
gap between the switch paddles and the switch
body is 0.02” (0.5mm). Figure 29.
47. NGC-1076-2 Actuator, Door
48. 102809
49. 102921
50. 101557
51. 102012
Screw, #8-32 x 3/8” 100Þ CSK
Screw, #8-32 x 3/8”
Screw, #4-40 x 1 1/4”
Interlock Switches
7. Restore power to the oven. Allow the oven to
warm to its set temperature.
52. NGC-3033 Assy, Door Switch*
8. Allow the oven to remain at the set temperature
for ten (10) minutes after warm up before making
any final adjustments, which may be needed
*See Figure 30 for assembly detail.
Download from Www.Somanuals.com. All Manuals Search And Download.
40
THE OVEN DOOR
ADJUSTING THE MONITOR SWITCH - OLD SETUP
50
49
APPLY HI-TEMP
GREASE TO AREA
The old switch assembly is identifiable by the moni-
tor switch being located on the right hinge assembly.
Also, the serial number of the oven will follow this
formatting (X = variable digit/letter):
48
47
NGC-XXXXX (North America)
NGCXX-XXXXX (International)
To adjust the switch, follow the steps below.
51
1. Ensure the oven door is adjusted. Refer to ADJUST-
ING THE COOK DOOR on page 38.
52
2. Turn on oven and bring it to the set temperature.
TOGGLE SHOULD BE LESS THAN
WARNING: Oven surfaces are HOT! Use
extreme caution when making adjustments.
º
OR EQUAL TO 85 DOWN
SWITCH GAP = 0.020”
3. Open and close the oven door several times to
ensure the door closes smoothly and the door
actuator (Item 47) clears the slot in the flange.
Reference Figure 29.
FIGURE 29: Correct Primary and Secondary Interlock
Adjustment and Parts - Old Switch Setup
DOOR SWITCH ASSEMBLY AND PARTS
4. Disconnect oven from power source.
Figure 30, next page
53. NGC-1072 Bracket Latch
5. To adjust the monitor safety switch (Figure 31),
loosen the #8-32 screw and the two (2) #4-40
screws (Items 68 and 69) securing the switch.
54. 102012
Switch, Micro, 0.1A/125VAC
55. NGC-1087 Spring Door Latch
56. NGC-1073 Toggle, Latch
6. Rotate the monitor safety switch (Item 65) until
the gap between the switch paddle and the switch
body is 0.02” (0.5 mm).
57. 101119
58. 100059
Pin, Clevis, ø3/16 x 1” Lg
Bearings, Bronze,
3/16ID x 5/16OD x 1/4” Lg
Screw, #4-40 x 1.25” Lg,
PPHD, CRES
Screw, #8-32 x 3/8”, Internal
Tooth Sems, PPHD, SS
59. 101557
60. 102921
7. Open and close the oven door several times to
make certain the adjustment is correct.
8. Tighten all screws.
61. NGC-1126 Plate, Door Switch
62. NGC-3006 Grease, USDA H-1, Food Grade
9. Reconnect oven to power source.
63. 101296
Ring, E-clip
10. Allow oven to sit at the set temperature for 10
minutes and confirm all adjustments.
Assembly Notes
1. Ring, e-clip (Item 63) is supplied with Item 56.
MONITOR SAFETY SWITCH PARTS
Figure 31, next page
2. Spring and bracket must be lubricated with high-
temperature pure FM grease (Item 62).
64. 102804
65. 102012
Hinge, Right
Switch, Limit, Micro
66. NGC-1126 Plate, Door Switch
3. Assembly must be hand-tightened prior to any
final adjustment.
67. 101912
68. 102921
69. 102902
Standoff, #8-32F/Fx1 in S
Screw, #8-32 x 3/8”
Screw, 4-40 x 5/8”
Download from Www.Somanuals.com. All Manuals Search And Download.
THE OVEN DOOR
41
56
58 x2
62 55
2
61
57
60
54
53
59
1
63
64
FIGURE 30: Door Switch Assembly and Parts - Old Switch Setup
68
65
66
x2
69
68
67
67
REF
68
FIGURE 31: Monitor Switch Adjustment and Assembly -
Old Switch Setup
Download from Www.Somanuals.com. All Manuals Search And Download.
42
THE OVEN DOOR
APPLY HI-TEMP
GREASE TO AREA
72
71
70
2
73
76
3
1
74
75
FIGURE 32: Primary Switch Adjustment and Parts -
New Switch Setup
ADJUSTING THE PRIMARY INTERLOCK SWITCH -
NEW SWITCH SETUP
PRIMARY SWITCH ADJUSTMENT AND PARTS
Figure 32
The new switch assembly is identifiable by the pri-
mary switch being located on the left side of the
oven. Also, the serial number of the oven will fol-
low the formatting below (X = variable digit/letter):
70. 102809
71. 102921
72. 101555
73. 102012
Screw, #8-32 x 3/8” 100Þ CSK
Screw, #8-32 x 3/8”
Screw, #4-40 x 3/4”
Interlock Switch
74. NGC-3033 Assy, Door Switch*
75. Adjustment Tools (included with Item 74)
NGC-1215 Door Switch Gauge
NGC-1340 Shim Tool, 0.060”
NGC-1344 Shim Tool, 0.030”
76. NGC-1169-1 Shim, 0.030”
NGCD(5 thru 9)XXXX (North America)
NGCXXD(5 thru 9)XXXX (International)
1. When the oven completes BURN IN (if
required, see page 38), closely examine the latch
toggle position using the door switch gauge
(Item 75).
NGC-1169-2 Shim, 0.045”
*Refer to FSB-10057 (included with Item 74) for
instructions on converting NGC-3033 kit into the
new switch assembly.
2. If the toggle is past the top of the window, you
must correct the toggle's position by installing
an 0.030” Shim (Item 76). See Figure 32.
3. Verify position of toggle by opening and closing
the oven door.
Assembly Notes
1. Tip of toggle must be within window notch.
Optimal is centered or below centered when the
oven is hot.
4. With the toggle correctly adjusted and the door
closed, adjust the primary switch by loosening
the two #4-40 screws and #8-32 screw.
2. Tip of toggle adjustment notch. Toggle must be
within notch when oven is hot.
5. Using a 0.030” (0.762 mm) spacer as a template
(included with Item 74), adjust switch lever
position to a maximum allowable distance of
0.030” (0.762 mm).
3. If toggle “hangs” in position as shown, decrease
number of shims.
6. Open and close the door several times to verify
the switch gap.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE OVEN DOOR
43
77
79
78 x2
82
83 x2
82
81
80
80 81
82
FIGURE 33: Secondary/Monitor Adjustment and Parts -
New Switch Setup
FIGURE 34: Secondary/Monitor Switch Assembly -
New Switch Setup
ADJUSTING THE SECONDARY AND MONITOR
INTERLOCK SWITCHES - NEW SWITCH SETUP
disengage in sequence.
9. Close the oven door and verify the M, S, and P
engage in sequence.
1. Disconnect power to the unit.
2. Disconnect the 40-pin connector from the I/O
board to allow maximum clearance.
10.Energize the Microwave System and open the
door.
3. Using the 0.060” (1.524 mm) spacer as a
template (included with item 74), adjust the
secondary switch.
11.Verify the W indicator is backlit, meaning the
oven microwave system turns OFF when the
door is open.
NOTE: This will also adjust the monitor switch.
SECONDARY AND MONITOR SAFETY SWITCH PARTS
4. Open and close the door several times to verify
the switch gap.
Figure 33 and 34
77. 102804
78. 102012
Hinge, Right
Switch, Limit, Micro (x2)
NOTE: The absolute maximum gap should not
exceed 0.060” (1.524 mm).
79. NGC-1126 Plate, Door Switch
80. 101914
81. 101915
Standoff, #8-32 F/F x 1”, 5/16”
DIA
5. Re-connect the 40-Pin connector to the I/O
board and apply power to the unit.
Standoff, #8-32 M/F x 5/16”,
1/4” DIA (attached to outside
of Item 80.)
Screw, #8-32 x 3/8”
Screw, 4-40 x 1.125”
6. Simultaneously press BACK and ENTER keys.
7. Enter 9-4-2-8, then press ENTER.
82. 102921
83. 101558
8. Open the oven door and verify P, S, and M
Download from Www.Somanuals.com. All Manuals Search And Download.
44
THE OVEN DOOR
99
6
94
93
101
84
98 AR
100
2
x2
87
5
85
90 x2
95
91
1
92 x6
x2
86
x17
5
97
88 89 96
x2
FIGURE 35: Oven Door Assembly
OVEN DOOR ASSEMBLY
91. NGC-1138
92. 102809
Label, Precaution
See Figure 35 above. For mis-adjustments, see
Figures 27 and 28 on page 39.
#8-32 x 3/8” CSK 100°
Label, Caution Empty
Door Insulation 1
Door Insulation 2
Channel, Door Handle
Screw, #8-32 x 3/8”,
Torx Security
Screw, #8 x 1/2” PTH
Tape, Aluminum
Name Plate, TurboChef
Nut, Push, 1/8”
93. NGC-1165
94. NGC-1125-1
NGC-1125-2
95. NGC-1127
96. 102748
OVEN DOOR PARTS
Figure 35
84. NGC-3067*
NGC-3067-2*
85. NGC-3021
86. NGC-1061
87. 102750
Door, NGC, Generic*
Door, NGC, SBK*
Kit, Shunt Plate
97. 101688
98. 102698
99. NGC-1155
100. 101293
101. NGC-1170
Hinge Block
Handle, Door, Generic
Handle, Door, SBK
Actuator, Door
Shim, Door Latch
Bolt, 1/4”-20 x 1.00
NGC-1216
88. NGC-1076-2
89. NGC-1132
90. 102945
Label, Service
*
Includes items 85 - 101.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE OVEN DOOR
45
1
5
14
8
15
4
13
9
4
1
5
8
7
16
12
15
11
9
12
11
10
13
14
10
3
2
6
17
7
3
2
6
16
SHUNT CAVITY/PLATE
Tightening Sequence
SHUNT ASSY/DOOR COVER
Tightening Sequence
FIGURE 36: Oven Door Assembly: Tightening Specs
SCREW TORQUE CHART
Critical Adjustment Notes (Figure 35)
1. Orient with the gasket seam at the bottom of
the door assembly. Gasket should be straight
with no twists or pinching.
Refer to Figures 35, 36.
PART
TORQUE
VALUE
2. Attach insulation (Item 94) to the inside of the
door cover using aluminum tape (Item 98).
90. Bolt, 1/4”-20 x 1.00
80 In-Lbs
(9.04 Nm)
x
†
DO NOT block openings at bottom.
85. Nut, Keps #8-32
(Assembled by factory)
21 In-Lbs
(2.37 Nm)
3. Item 94 (insulation) not shown for clarity.
4. Door should be flat without twisting or
warpage after tightening all hardware.
96. Screw, 8-32 x 3/8”
Torx Security
21 In-Lbs
(2.37 Nm)
5. Refer to the chart to the right for torque specs.
Refer to Figure 36, above, for tightening
sequences.
97. Screw, 8 x 1/2” PTH
21 In-Lbs
(2.37 Nm)
6. Attach Item 99 with adhesive backing using
the two locating holes on the front cover.
Download from Www.Somanuals.com. All Manuals Search And Download.
46
THE OVEN DOOR
INTERLOCK SWITCH TROUBLESHOOTING
ISSUE
RESOLUTION
“Cook Door Open”
Message
Determine which interlock switch is open. Access TEST MODE to view
interlock switch status.
1. P S M - Primary and/or secondary interlock is open (old switch setup).
P SM - Primary interlock is open (new switch setup).
Verify action of the latch assembly and oven door. When the door
closes, the actuator should freely clear the slot on the flange. When it
strikes the toggle latch, it should rotate smoothly to its closed position.
†
Actuator doesn’t clear slot: Bend or adjust actuator. If the actuator
is worn or has yielded, replace the actuator.
†
Toggle doesn’t rotate freely or smoothly: Replace any worn parts.
Clean assembly and re-lubricate all rotating parts. Be sure to grease
the torsion spring (See Figure 30).
†
Actuator and toggle OK: Check adjustment and wiring on the
interlocks. If adjustment is necessary, see page 38 (old setup) or page
42 (new setup) for the proper adjustment procedure.
2. PS M – Monitor switch is open (old switch setup).
P S M – Secondary and/or monitor switch is open (new switch setup).
Verify that the door closes freely and completely.
†
Door does not close freely: Remove obstructions or readjust the
oven door per the instructions on page 38.
†
Door closes properly: Readjust the monitor safety switch (old switch
setup)/secondary and monitor (new switch setup) per the
instructions on page 38 (old setup) and 42 (new setup).
Download from Www.Somanuals.com. All Manuals Search And Download.
The Convection Circuit
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONVECTION CIRCUIT
47
The Convection Circuit provides the high-temperature
Motor Controller (BMSC)
airflow required to brown and cook food items.
The motor controller is proprietary and will only
operate the convection motor described above. The
motor controller is controlled on command from the
I/O control board and a 0-10VDC speed command
from the I/O control board.
CONVECTION CIRCUIT COMPONENTS
The following is a description of each component
within the Convection Circuit and how each acts
within the circuit. Figure 37 below shows a block dia-
gram of the Convection Circuit.
High Limit Thermostat
The high limit thermostat is a 250 VAC, 3-pole,
º
Main Convection Heater
manual reset thermostat with a trip point of 572 F
º
The main convection heater is an open-coil style
(300 C). The thermostat, which interrupts power to
heater rated at 3300 watts at 208 VAC with a resist- both the main convection heater and the IR element,
ance of 13.11 Ohms. The convection heater
is controlled by the K4 solid state relay.
should never operate during normal oven operation.
Convection Motor
The convection motor is a brushless AC switch reluc-
tance type. Its top speed is 7100 RPM at 1 HP. The
motor is controlled by a proprietary controller.
BOTTOM IR CONTROL
WH-28
MAIN HX CONTROL
OT1 - HI-LIMIT
MANUAL RESET
WH-30
+24
C
NC
31
RD-19
HX ELEMENT
3300 WATTS
13.1 OHMS
32
OR540
BL510
C
NC
21
22
HT520
1
C
NC
11
SSR
12
K5
K4
BOTTOM IR
3000 WATTS
14.4 OHMS
B2
A2
B1 A1
2
L2
L1
MOTOR SPINS
COUNTER-CLOCKWISE
FROM BACK
M4 GREEN
M3 WHITE
M2 RED
4
3
2
1
240 VAC
3 PHASE
OUT
M1 BLACK
BMSC
RD-24
0-10V
I/O COM
ENABLE
I/O COM
STATUS OK
I/O COM
1
BK-25
WH-31
BK-32
OR-9
SPD CMD
2
3
4
5
6
200-240
VAC IN
3
2
1
BLWR
MTR
GROUND (GREEN)
L2
L1
FIGURE 37: Convection Circuit Block Diagram
Download from Www.Somanuals.com. All Manuals Search And Download.
48
THE CONVECTION CIRCUIT
1
x10
109
110
1
114
105
x6
104
103
x8
102
107
113
111
112
108
106
FIGURE 38: Convection Circuit Assembly and Parts/Item 105 (Blower Motor) Detail
CONVECTION CIRCUIT/BLOWER MOTOR PARTS
112. NGC-3005 Relay, K4/K5 SSR
113. 100592
114. 102075
115. NGC-1043 Gasket, Convection Heater
Fuses, F1 and F2 (12 Amp)
High-Limit Thermostat
Figure 38
102. 101688
103. NGC-1081 Cover, Motor
Screw, #8 x 1/2” PTH
**
104. 100906
Nut, 1/4”-20, Flange
*
If entire motor is needed, order NGC-1025.
If only hardware (e.g., screws, nuts) or seal is
105. NGC-1025 Assy, Blower Motor
106. NGC-3007 Kit, Fan Blade
107. NGC-1024 Sealing Block, Blower
108. NGC-1023 Clamp, Blower Seal
109. 101688
110. NGC-3011 Heater, Convection
111. 100443 Controller, Motor
*
*
*
needed, call 800.90TURBO or +1 214-379-6000.
** Not shown for clarity.
Screw, #8 x 1/2” PTH
Assembly Notes
1. Cut insulation covering heater as shown.
Download from Www.Somanuals.com. All Manuals Search And Download.
THE CONVECTION CIRCUIT
49
CONVECTION CIRCUIT TROUBLESHOOTING
ISSUE
RESOLUTION
F8: Heat Low
1. Check that the blower motor is moving air.
†
Blower motor is not moving air: Check blower motor assembly
and verify motor is stalled. Unplug oven and correct obstruction or
replace motor. (For access to motor shaft, remove top panel.)
Blower motor is moving air: Verify high-limit thermostat is
not tripped. See the high-limit thermostat information below.
Oven Not Warming Up
†
High-Limit Thermostat:
†
Thermostat tripped: Reset and determine why the thermostat
tripped (See Figure 38, Item 114). Look for excess build up of
grease inside the oven or any other source for a fire.
†
Thermostat is not tripped: Check main convection heater.
1. Convection heater is defective: Unplug oven and replace the
convection heater and verify the K4 SSR (Figure 37) is not
shorted across output.
2. Convection heater OK: Check the K4 SSR.
†
K4 defective: Unplug oven and replace.
†
K4 OK: Unplug oven and verify all wiring. Verify P1 voltage on
I/O board is 5.0VDC (+/- 0.02) - see Figure 40, page 54.
F2: Cook Temperature
Low
1. Verify Cook Door Operation.
†
“Cook Door Open” Message: Verify which switch is not actuating
and readjust. See pages 38-43.
†
Cook Door OK: Verify high-limit thermostat is not tripped. See
the high-limit thermostat below.
High-Limit Thermostat:
†
Thermostat tripped: Reset and determine why the thermostat
tripped (See Figure 38, Item 114). Look for excess build up of
grease inside the oven or any other source for a fire.
†
Thermostat is not tripped: Check main convection heater.
1. Convection heater is defective: Unplug oven and replace the
convection heater and verify the K4 SSR (Figure 37) is not
shorted across output.
2. Convection heater OK: Check the K4 SSR.
†
K4 defective: Unplug oven and replace.
†
K4 OK: Unplug oven and verify all wiring. Verify P1 voltage on
I/O board is 5.0VDC (+/- 0.02) - see Figure 40, page 54.
Download from Www.Somanuals.com. All Manuals Search And Download.
50
THE CONVECTION CIRCUIT
ISSUE
RESOLUTION
F1: Blower Running
Status Bad
1. Verify motor spins freely.
†
Motor seized: Unplug oven and correct obstruction or replace motor.
†
Motor spins freely: Verify motor windings (see table below).
2. Verify motor windings are OK. Measure the resistance between
windings and chassis. Unplug oven and replace motor if resistances do
not agree with the values in the table below. If motor is OK, proceed to
step 3, below.
3. Determine if status indicator “A” is highlighted/backlit in TEST MODE.
†
“A” is highlighted/backlit.
a. Disconnect control wiring.
b. Ground OR-9 to chassis to remove backlight on “A”.
c. Keeping OR-9 grounded, check terminals on the control wiring
plug for 0-10 VDC control voltage (reference drawing of QC3
plug on schematics (pages 55-63) while incrementing blower
speed in TEST MODE (see BLOWER SPEED, page 15).
d. If DC voltage is present throughout all speed settings in TEST
MODE (see BLOWER SPEED, page 15), replace motor controller. If
not, check harness and/or replace I/O board.
MOTOR WINDING RESISTANCES TABLE
TO
FROM
DESCRIPTION
EXPECTED RESISTANCE
Black
Black
Red
Red
Winding (A-B)
Winding (A-C)
Winding (B-C)
2.0 – 2.6 Ohms
2.0 – 2.6 Ohms
2.0 – 2.6 Ohms
White
White
Black, White
or Red
Green
Windings to Chassis
Open
Download from Www.Somanuals.com. All Manuals Search And Download.
IR Element and Catalytic
Converter
Download from Www.Somanuals.com. All Manuals Search And Download.
IR ELEMENT AND CATALYTIC CONVERTER
51
The IR Element and Catalytic Converter provide two
very different, but essential functions.
of the airflow, thus the grease burns and breaks
down into CO2 and H2O as it passes through the
catalytic converter. The catalyst will operate most
º
º
The IR element provides the bottom browning -
similar to a residual broiler or salamander type
cooking appliance - required for cooking most food
efficiently at temperatures above 475 F (246 C).
The catalyst material is very sensitive to certain
items. The IR element temperature is independently chemical compounds. Irreversible damage can occur if
controlled in each recipe.
the catalyst is exposed to cleaning chemicals con-
taining phosphates, NaOH, silicates, Na and
Potassium Salts. These chemicals are found in most
commercial degreasers and cleaners; therefore, only
TurboChef® Oven Cleaner should be used.
The catalytic converter scrubs the air to eliminate
VOCs and grease particulates that are liberated during
the cooking process. It is important to properly care
for the catalyst using only TurboChef® Oven Cleaner
(P/N 103180 USA, 103380 Intl) and distilled
water. For more detailed information, see the
catalytic converter section below.
CAUTION: Clean the catalytic converter
with TurboChef® Oven Cleaner and rinse
thoroughly with distilled water. Let the catalytic
converter air dry before reinstalling. If TurboChef®
Oven Cleaner is not available, do not use a substi-
tute. Use distilled water only.
COMPONENTS
IR Element
The IR element - a dual coil type heater - is located
in the bottom of the oven cavity. The first coil is the
heating coil. The second is the IR thermocouple
wire. The heating coil outputs 3000 watts at 208
VAC. The heating coil’s resistance is 14.4 ohms at
room temperature.
IR ELEMENT AND CATALYST REMOVAL
Refer to Figure 39 and the instructions below for
removing the IR element and catalytic converter.
Removing the IR Element
1. Unplug the oven.
The thermocouple coil is a Type K thermocouple
with a resistance of approximately 20 ohms at the
splices located approximately 6 inches from the
heater and 40 ohms measured at the extension wires
at the I/O control board.
2. Disconnect the heater wires going to the EMI
filter and the high-limit thermostat.
3. Locate where the IR element protrudes through
the cook cavity walls and remove the snap rings
(Item 116) using snap ring pliers. Retain snap
rings (Item 116) and washers (Item 117). Figure
41.
The IR element is controlled via the K5 solid state
relay and the IR thermocouple via the I/O control
board.
4. Locate and remove the microwave shield
(Item 119) by removing the four (4) #8 x 1/2”
sheet metal screws (Item 120).
Catalytic Converter
The catalytic converter, a VOC type catalyst, is locat-
ed behind the inside cook cavity wall and is responsi-
ble for cleaning the recirculating airflow. The
catalyst functions by substantially lowering the
combustion temperature of grease entrained in
the air path to approximately the same temperature
NOTE: Some models do not contain item 119.
5. Squeeze the IR element together inside the cook
cavity and pull the IR element from the oven.
Download from Www.Somanuals.com. All Manuals Search And Download.
52
IR ELEMENT AND CATALYTIC CONVERTER
Removing and Installing the Catalytic Converter
1. Unplug the oven.
CAUTION: Do not allow the thermocouple
lead wires to kink. They are solid wire and
will break.
2. Remove the IR element. (See above procedure.)
3. Once the IR element is installed, expand the IR
element in order to reinstall the shim washers
(Item 117) and snap rings (Item 116). Figure 39.
3. Once the IR element has been removed, remove
the catalytic converter clip (Item 121) to access
the catalytic converter. Figure 39.
NOTE: Be sure that the snap rings sit in the
grooves on IR element.
NOTE: It may be necessary to remove the
blower motor assembly (see page 48) to get
access to the top of the catalytic converter.
This will allow the catalytic converter to be
pushed down out of the housing. Figure 39.
4. Reconnect the IR element lead wires to the EMI
filter and the high-limit thermostat.
5. Reconnect the IR thermocouple lead wires
to the thermocouple extension wires – Yellow to
Yellow and Red to Red.
4. Remove the catalytic converter (Item 122).
5. Inspect the condition of the catalytic converter
and either clean it or install a new one.
IR ELEMENT AND CATALYTIC CONVERTER PARTS
Figure 39
116. 101312
117. 102449
118. NGC-3003 IR Element
119. NGC-1116 Shield, Microwave
CAUTION: Clean catalytic converter using
only TurboChef cleaner (P/N 103180 USA,
103380 Intl). Use of other chemicals will
irreparably damage catalyst.
Snap Ring
Washer, Shim
120. 101688
121. NGC-1030 Clip, Catalytic Converter
(Non-SBK)
Screw, #8 x 1/2” Sht Metal PTH
Installing a New IR Element
1. Unplug the oven.
2. Gently squeeze the new IR element together in
NGC-1233 Clip, Catalytic Converter (SBK)
order to get the terminals and lead wires into the 122. NGC-1012 Catalytic Converter
cavity and through the mounting holes.
119
122
118
119
x4
120
116
117
122
121
118
FIGURE 39: IR Element and Catalytic Converter Assembly
Download from Www.Somanuals.com. All Manuals Search And Download.
Schematics and Schematic
Components
Download from Www.Somanuals.com. All Manuals Search And Download.
SCHEMATIC COMPONENTS
53
FIGURES 40 THRU 45: NGC OVEN SCHEMATICS
Keypad, NGC Oven
Switch, Primary Interlock
Switch, Secondary Interlock
Switch, Monitor Safety
Thermocouple, CC
Thermocouple, EC
Thermostat, Magnetron
Figure 40
Figure 41
Figure 42
Figure 43
Figure 44
Figure 45
I/O Board Schematic
NGC US Schematic
NGC UK Schematic
NGC EW Schematic
NGC ED Schematic
NGC Brazil Schematic
SCHEMATIC PARTS
Wire Harness Replacement P/Ns
Low Voltage Harness
Line Voltage Components
123. 100185
Old Switch Setup
Capacitor, High Voltage (C1)
Capacitor, High Voltage (C2)
Controller, Motor
NGC-1418 New Switch Setup
Line Voltage Harness
124. NGC-1150-1 North America
NGC-1150-2 UK, Ireland, Brazil
NGC-1150-3 Eu, Asia, Pacific, Au, Japan
Magnetron Wire
Diode, High Voltage (D1)
Diode, High Voltage (D2)
EMI Filter (P/N 100542 USA, UK, Ireland, Brazil,
Japan 1Ph)
EMI Filter (P/N 100545 Europe, Asia, Pacific,
Australia, Japan 3Ph)
125. 100186
All NGC Ovens
Power Cord
126. 100187
100194
Fan 1, Cooling
USA
Fan, Magnetron (Fan 1)
Fuse Holders, F1, F2, and F3
Fuse, F1, 12 Amp
Fuse, F2, 12 Amp
Fuse, F3, 20 Amp
NGC ED - Europe, Asia, Pacific
UK, Ireland, Brazil
NGC EW- Europe, Asia, Pacific
Australia
100195
103187
103195
NGC-1383 Japan 3Ph
NGC-1390 Japan 1Ph
Heater, Convection
Heater, IR Element
Magnetron (M1)
Magnetron (M2)
Motor, Convection
Power Supply, +24VDC (PS)
Relay, K1, Filament
I/O CONTROL BOARD ITEM IDENTIFICATION AND
TEST POINT LOCATIONS
Figure 40
C9 Capacitor
D6 Diode
Relay, K2, Anode
J2
J3
J4
J5
J6
40 Pin Connector for LV Harness
3 Pin Connector for VFD Display
14 Pin Connector for Keypad
26 Pin Connector for Display Data
RS-232 Connector (Unused)
Relay, K3, Monitor
Relay, K4/K5, Solid State, K4/K5, Heater/IR
Relay, K6, Voltage
Relay, K7, Magnetron Cooling Fan
Thermostat, OT2, Cooling Fan
Thermostat, OT1, Heater
Transformer, Filament (FT1)
Transformer, Filament (FT2)
Transformer, High Voltage (T1)
Transformer, High Voltage (T2)
Voltage Sensor Module (US ovens only)
P1 Voltage Reference 0-5 VDC RJ11 Connector
for Smart Card Cable
P3 Blower Controller Pin Configuration U15
EPROM Socket
R42 Voltage Reference Adjustment (not available
on some ovens)
R51 Beeper Volume Adjustment
SKP1 Beeper
U19 Erasable EPROM Socket
T1 Magnetron Current Transformer
Low Voltage Components
Display, VFD
I/O Control Board
Download from Www.Somanuals.com. All Manuals Search And Download.
54
I/O BOARD SCHEMATIC
FIGURE 40: I/O Control Board and Test Point Locations
Download from Www.Somanuals.com. All Manuals Search And Download.
N : G 1 C 4 ( T o r n a d F o I G ) U S c R h E e m a t i c
S E R I
R
W H T E O L L A
S E R I W E U
B L L A L
C C A L S S C S P M A 2 : 1 1 F
C C A L S S C S P M A 2 : 1 2 F
C C A L S S C S P M A 0 : 2 3 F
W E I
V
U T O - N I E L
R O C T N N E C D O R A C T R A M S
1
2
3
6
5
4
3
2
N O M M O
I / O C
N I
2 4 0 0 0 2 -
V A C
O U
K
O S U A T S T
G
L 2
L 2
M O I / O C
E L A B E N
N O M M O
T U P I N
R
M T
I / O C
D
D P C S M
R W B L
R E T L F I
E M
L
L
1
V
1 0 0 -
I
L 5 B 0 0
J 6
C S B M
T
P 6
L 0 B 0 0
1
1
1
2
1
2
3
4
K
A C B L M 1
D E R M 2
P 4
J 4
0 0 R 0 B
A S E P 3 H
A 1 B 1
E L U D O E M A T G L V O
F 0 ° 1 2
F 3
F 2 F 1
2
C A 4 0 2 V
A 2
B 2
E T I
H
W M 3
E R E N G
1
O T
2
2
S M O . H 4 4 1
S T T A W 0 0 3 0
I R M O T T O B
E S E R T A L U N A M
1 1 R J
1 1 R J
K 4
K 5
S S R
N O
2
C
O T
2 2 R 0 B
G N ) I
K 1
K 2
1 2
2 1 2 2
1 1
L 1 B 1 0
4 0 4 0
3 9 3 9
3 8 3 8
O C O L ( 1 N A F
C C
L 5 B 1 0
C C ) +
C (
1
-
+
-
2 1 R 0 B
0 2 5 H T
A
B
( - ) A
2 5 R 0 B
L 1 B 4 0
3 7 3 7 C E
3 6 3 6
0 4 5 O R
S E L P U O C O M R E T H
D U O L M T L O V ( V 4 2 -
E C ) +
( - ) A
I R ) +
C (
C (
9 1 - R D
3 2
3 1
S M O . H 1 3 1
S T T A W 0 0 3 3
T E N E L M E X H
3 - 0 H 1 W
I R
3 5 3 5
8 2 - W H
( - ) A
3 4 3 4
3 3 3 3 N ) R T E
3 3 - B K
2 3 - B K
1 3 - W H
6 N P I 6 N P I
5 N P I 5 N P I
3 2 3 2 ) N T R M O ) ( C ( 4 C S M B
3 1 3 1 ) T U O E L B A N ) ( E ( 3 C S M B
3 0 3 0 ) T U O V N O - ) ( C ( 4 B K
2 9 2 9 ) T U O D O M S T L O ( V - B 6 K
2 8 2 8 T O U I R O T M T O B ) B - ( 5 K
2 7 2 7 ) T U O L I F G ( M A - B 1 K
2 6 2 6
2 - W H
9 2 - W H
1 6 - O R
7 2 - W H
9 1 - R D
T U O N P I
A Y S A S L Y E R
B
A
1 0 3 - W H
K 7
4 N P I 4 N P I
3 N P I 3 N P I
J
Y A L E R
_
N A F _
G
M A
B
1 - W H
2 4 V
C
8 2 - W H
7 2 - W H
2 9 R 0 B
L 1 B 6 0
6
3
4
S E U D
N O
K 3
K 6
2 3 R 0 B
L 1 B 2 0
+
2 N P I 2 N P I
1 N P I 1 N P I
9
7
A
T
N C
N O
2 5 2 5 ) 2 ( M M O C S C B M
5 2 R D -
4 2 R D -
3 2 - B K
3
Q C
2 G A M
1 G M A
2 4 2 4 T U O V 0 1 -
0
S C B M
1
2 3 2 3 N T R W S O M E H
C A V 0 2 4 3 = 1 -
C A V 8 2 0 2 = 1 -
S P T A
T G M V A 4 - 2
T N E M A L I F K 1
N F A
2 2 2 2 N T R M &
S
2 - 4 V
2 2 - B K
1 2 - B K
O R C T N N O E C
G N I O F W A D R
4
1
2
2 1 2 1 N R T R E T N I P V 4 2 -
2 0 2 0 N I
G
M A
N I P - 6
F
F
F A
F A
S
S
P
P
2 - 4 V
2 4 + V
0 2 - B K
5 7 2 O R
5
3
1 9 1 9
1 8 1 8
1 7 1 7
1 6 1 6 N I
1 5 1 5
1 4 1 4
9 1 R D -
5
4
B
A
5 8 2 B R
2
3
6
3 2 - B K
1 1 - O R
A F M 1
6 1 R D -
A F M 2
5 5 1 B L
1
6
3
4
F T 1
F
M 1
) D + (
P 5
9
F
M 2
2 C Q
1 Q C
1 3 1 3 I N L A U D O M T L O V
1 2 1 2
1 1 1 1 N I W S M R O E H T G M A
1 0 1 0 N I S U A T S X T H
3 1 - O R
1 1 - O R
N
A S P E
7
1
0 7 2 O R
) - (
1
) + (
2
( - ) D
M 2 C
5
4
3
E D O A N K 2
D
D
M 1 C
L E S S C B M
0 8 2 B R
2
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
) K O S U T A T ) ( S ( 9 C S M B
9 - O R
8 - O R
7 - O R
C 1
C 2
C
C
F
I N R E T I N O N ) ( Y R A D N O C E S
N I R E T N ) I O N ( A R M I P R
N I R E T N I ) O N ( R O T N I O M
N O
N O
F
u 9 1 0 .
F
u 9 1 0 .
Y
0 5 1
B L 1
1 2 °
S
F
1 2 °
F T 2
C F M 1
C F M 2
C T H I E W S
6 - O R
B
A
O M R E T H M A G
6
V H M 1
V H M 2
C T
M A
) T U O G
( M - B A 2 K
2 - W H
1 - W H
9
3
4
1
Y A L E R N A F G M A
G
4 0 R 0 B
7
T 1
T 2
R O T I N O M K 3
C A V 0 2 4 3 = 1 -
C A V 8 2 0 2 = 1 -
L 3 B 5 5
D D O S S V E N
C T
M A
B
A
G
S R E M R O S F A N R T V H
1 E C I
S P L
9
L 3 B 4 0
L 3 B 7 0
0 6 3 O R
6
3
6 - O R
K C O L R E T I N
Y R A N D C E O S
N O
N O
G
N
4 5 R 0 B
5
2
4 2 R 0 B
Y L P P S U
R E W P O
C D V 2 4
8
7
- V
+ V
6 1 - B K
0 2 - R D
C
C
0 4 4 O R
N C
N O
N C
L
K C O L R E T I N
A R M I P R
4
2 8 R 0 B
C
Y
0 7 2 O R
1
H C T I
S W
N C
S T L
V O K 6
R O T I N M O
L 1 B 5 0
S K C O L R E T N I T Y F A E S
S R E M O F R S N A R T V H
G I O N F W A R D
B L
O R
T 1
T 2
B L
B R
O R
R O T C E N N O C N I P - 0 4
G I O N F W A R D
B R
D E I
A R P E P L W P T O U O H T I W D N A E N P O R O O D H T I W N E V O S W O H S C I T A M E H C S . 1
: S E T N O
5 5
N G C ( U S ) S C H E M A T I C
Download from Www.Somanuals.com. All Manuals Search And Download.
N : G 2 C 4 U K ( T o F r n I G a d U o R ) E S c h e m a t i c
U T P E D L S O - S K C O R E L T N I Y T E F A S
Y R A N D C E O S
N O
H C T I S W
R O T I N M O
1 2 - B K
C
N C
N O
Y R A M I P R
N O
C
N C
C
N C
C
A L S S C C A M 2 P 1 : S 1 F
C
C
A L S S C C A M 2 P 1 : S 2 F
A L S S C C A M 0 P 2 : S 3 F
T U P N I E R I 3 W
1 , Ø C A 3 0 2 V
L E Y /
N
G R
R O T C E N N O C D R A C T A R S M
N
L 1
E U B L
N W O B R
L 1
N
4 0 V S K 6
A H S E P 1 - E R L I T F
E M
I
P
T U E W E S N - S K C O L R T E I N Y T F E A S
H C I T W S
N
L 1
J 6
N C
R O T I N M O
5
2 K B L
3
4
H T
P 6
K C O L R T E I N
Y R A M I P R
C
N O
N C
P 4
J 4
1
1
1
N C
S M H 4 O 1 4 .
S T T A 3 0 0 0 W
R I O T M T O B
C
C
2
F 3
F 2
2
F 1
1 1 R J
N A
F
E C
N O
N O
2
K C O L R T E I N
Y R A N D C E O S
4 0 4 0
3 9 3 9
3 8 3 8
N
L 1
A 1 B 1
A 2
C C
C C
1 1 R J
) + C (
B 2
K 5
T
X C A U
( - ) A
0
3
B R
6 - O R
S E L U P C O M R E H T
D U O L E M T L O V ( V 4 2 -
3 7 3 7 C E
3 6 3 6
2
1
E C
) + C (
( - ) A
I R ) +
K 4
R S S
E L E I R
I R
F
2 0 1 °
C (
3 5 3 5
-
+ +
-
3 2
3 1
T
C H X
M A G
A
B
N O
2
( - ) A
C
O T
3 4 3 4
9
D 2 R E
3 3 3 3 N ) R T
2 1 2 2
T
C
9 1 - R D
3 2 3 2 ) N T R M O ) ( C ( 4 C S M B
3 1 3 1 ) T U O E L B A N ) ( E ( 3 C S M B
3 0 3 0 ) T U O V N O - ) ( C ( 4 B K
2 9 2 9 Y A L E R N F A G A M 7 K
2 8 2 8 T O U I R M O T T O B ) B - ( 5 K
2 7 2 7 ) T O L U F G I A M ( B - 1 K
2 6 2 6
2 3 - B K
1 0 3 - W H
8 2 - W H
8
3
H T
1 3 - W H
1 2
1 1
6 N P I
6 N P I
S M H O . 1 3 1
S T T A 3 3 0 0 W
T N E E M E X L H
- 3 H 0 1 W
2 - W H
M A R G A I D D A L O
5 N P I
4 N P I
5 N P I
4 N P I
9 2 - W H
S E T R L A U N A M
O T
8 2 - W H
7 2 - W H
1
1 6 - O R
7 2 - W H
9 1 - R D
3 N P I
3 N P I
2 N P I
1 N P I
2 N P I
1 N P I
2 5 2 5 ) ( 2 M M O C C S M B
5 2 - R D
4 2 - R D
3 2 - B K
5
1 B L
2 4 2 4 T U O V 0 1 -
0
S C B M
3
Q C
2 3 2 3 N T R
W
O M S E G A T H M V 4 2 -
D 6 R E
B
A
K 7
2 2 2 2 N T R M S V & 4 - 2
2 2 - B K
1 2 - B K
0 2 - B K
9 1 - R D
Y A L R E N A _ F
_
G A
M
2 1 2 1 N R E R T T N I P V 4 2 -
B
9 2 - W H
+ V 2 4
2 0 2 0 I N S
4
1 B L
D 5 R E
4
2
3
P V 4 2 -
N C
N O
K 1
1
2
4
5
6
5
A
C
1 9 1 9
E
U T S
N O D
O
1 8 1 8
1 7 1 7
2 A G M
1
M A G
1
1 6 1 6 I N S P V 4 2 +
1 5 1 5
6 1 - R D
3 2 - B K
1 1 - O R
6
3
T N E M A L I F K 1
P 5
1 4 1 4
R O T C E N N C O
G N I O F W A R D
C A 0 V 2 3 2 1 = -
A T P S
1 3 1 3 I N L A U D O M T L O V
1 2 1 2
K 2
K 3
N
G
F A
N I P - 6
A S P E N
2
Q C
1
Q C
M A
F
F
F A
F A
1 1 1 1 N I S W M R O E H T M A G
1 0 1 0 I N S U T A T S X H
1 1 - O R
0 1 -
9 - O R
8 - O R
7 - O R
S E S L C M B
4
3
O R 9
8
9
8
7
6
5
4
3
2
1
) K O S U T A T ) ( S ( 9 C S M B
N I R E T N I ) O N Y ( A D R N O C S E
N I R E T N I ) O N Y ( A M R I P R
N I R E T N ) I O N ( R O T N I O M
2
A F M 1
B
A
N C
N O
1 2 ° F
S E H C I T S W
O M R E H T G M A
N C
N O
1 2 ° F
1 1 F T
7
C
C
A F M 2
6
6 - O R
F
M 1
) + (
O R 5
4
6 -
F
M 2
4
6
2
3
D 1
D 2
3
4
) - (
) + (
( - )
D C M 2
C T
2
) T U O
( M - B A 2 G K
2
2 - W H
5
D C M 1
1
1
3
G
M A
T U O N P I
A Y S A S L Y E R
E D O A N K 2
1 . 5 1 u F
1 . 3 1 u F
1 . 5 1 u F
1 . 3 1 u F
1 2 F T
C 1
C 2
G
S D O D S
E V E N
Y L P P S U
R E W P O
C D V 2 4
C F M 1
C F M 2
N
+ V
- V
6 1 R D -
0 2 - B K
L
B
A
8 B L
D 1 R E
4
V H M 1
V H M 2
6
2
3
1
1
6
5
4
3
2
1
N O M M O
O S U A T S T
M O I / O
C
I / O
2
3
K
N I C V A
2 4 0 0 0 2 -
5
C
T 1
C A 0 V 2 3 2 1 = -
T 2
E L A B E N
N O M M O
R
M T
C T
M A
R O T I N O M K 3
C
I / O
D
D P C S M
R W B L
G
V
1 0 0 -
S R E M R O S F A N R T V H
C S B M
T
1 E C I
S P L
O U
A S E P 3 H
C A 4 0 2 V
1
2
3
K L
D E
I T H E W 3 M
E R E N G
B
R
M 1
M 2
0
4 K B L
4
9
1 K B L
4
3 B L
3 3 B L
R O T C E N N C N O I P - 0 4 F O G N I W A D R
D E I
A R P E P L W O P T U O H T I W D N
A
E N P O R O O D H T W I N E V O S W O H S C I T A M E H C S . 1
: S E T N O
5 7
N G C ( U K ) S C H E M A T I C
Download from Www.Somanuals.com. All Manuals Search And Download.
N : G 3 C 4 E W ( T o F r n I G a d U o R ) E S c h e m a t i c
Y R A N D C E O S
N O
H C I T S W
R O T I N M O
1 2 B K -
C
N C
N O
Y R A I M P R
N O
C
N C
C
N C
C C S A L S C S P
C C S A L S C S P
C C S A L S C S P
A 2 M : 1 1 F
A 2 M : 1 2 F
A 0 M : 2 3 F
N
G R
B L
B R
B L
B L
T
P U I N E R I W 5
3 , Ø 4 1 5 8 0 3 -
U
L 1
N
R O T C E N N O C D R A C T A R S M
N
N
L 3
L 2
L 1
L 1
N
K
K
L 3
L 2
E Y W E R I
W
E 5 A S P - H 3
R E T L I I F E M
L 3
L 2
P U T E S W E N K S C O - L R E T I N Y E T S A F
H C I T S W
J 6
P 6
3
4
H T
N C
R O T I N M O
K C O L R E T I N
Y R A I M P R
C
L 3
P 4
J 4
L 1
N O
N C
1
2
1
1
S M H 4 O 1 4 .
S T T A 3 0 0 0 W
R I M T T O B O
N
N C
C
F 3
F 2
F 1
C
1 1 R J
2
2
N A
F
E C
N O
K C O L R E T I N
Y R A N D C E O S
N O
4 0 4 0
3 9 3 9
3 8 3 8
3 7 3 7
3 6 3 6
3 5 3 5
3 4 3 4
A 1 B 1
A 2
C C
E C
I R
C C ) +
1 1 R J
C (
B 2
K 5
0
3
B R
) - A (
2
E C ) +
S E L U P C O M R E H T
6 - O R
C (
) - A (
) + C (
K 4
S S R
-
I R
F 0 ° 1 2
-
+
3 2
3 1
A
B
N O
2
) - A (
C
O T
9
D 2 R E
3 3 3 3 ) N T R E L U D
M T O L O ( V 4 2 -
2 1 2 2
1 1 1 2
9 1 - R D
3 2 3 2 ) N T R M O ) ( C ( 4 C S M B
3 1 3 1 ) T U O E L B A N ) ( E ( 3 C S M B
3 0 3 0 ) T O V U O C N ( ) - B ( 4 K
2 9 2 9 Y A L R E N A F G A M 7 K
2 3 - B K
1
3 - 0 1 H W
8 2 - W H
8
3
H T
L 2
1 3 - W H
S M H 1 O 1 3 .
S T T A 3 3 0 0 W
M
R A G A D I
D A L O
6 N P I 6 N P I
1 0 3 - W H
2 - W H
5 N P I 5 N P I
4 N P I 4 N P I
9 2 - W H
T N E E M H X E L
S E T R L A U N A M
2 8 2 8
T
O U R I O T M T O B ) B - ( 5 K
8 2 - W H
7 2 - W H
1
O T
1 6 - O R
7 2 - W H
9 1 - R D
2 7 2 7 ) T U O L I F G ( M A - B 1 K
2 6 2 6
3 N P I 3 N P I
2 N P I 2 N P I
2 5 2 5 ) 2 ( M M O C S C B M
5 2 R D -
4 2 R D -
3 2 - B K
5
1
B L
1 N P I 1 N P I
2 4 2 4 T U O V 0 1 -
0
S C B M
3
Q C
2 3 2 3 N T R
W
O M S E H G A T M V 4 2 -
D 6 R E
B
A
K 7
2 2 2 2 N T R M & S V 4 - 2
2 2 - B K
1 2 - B K
0 2 - B K
9 1 R D -
2 1 2 1 N R E R T T N I P V 4 2 -
B
9 2 - W H
2 0 2 0 I N S
4
1
B L
6
3
4
P V 4 2 -
K 1
+
2 4 V
1
2
3
4
5
9
7
A
1 9 1 9
E
U T S
N
O D
O
1 8 1 8
D 5 R E
1 7 1 7
2 G A M
G A 1 M
1
1 6 1 6 I N S P V 4 2 +
1 5 1 5
6 1 R D -
3 2 - B K
1 1 - O R
6
T N E M A L I F K 1
P 5
1 4 1 4
R O C T N N E C O
G N I O W F A R D
C A 3 0 2 V 2 - 1 =
A T P S
1 3 1 3 N I L D U O A M T L O V
K 2
K 3
N F A
M A
N I P - 6
N
P E A S
2
Q C
1
Q C
1 2 1 2
G
A
F
F F A
F
1 1 1 1 I N W S O M R E H T G A M
1 0 1 0 N I S U A T S X T H
1 1 - O R
0 1 -
9 - O R
8 - O R
7 - O R
L E S S C B M
4
2
O R 9
8
9
8
7
6
5
4
3
2
1
) K O S U T A T ) ( S ( 9 C S M B
3
A F M 1
N I R E T N ) I O N (
N I R E T N ) I O N (
N I R E T N I ) O N ( R O T N O I
Y
Y
A D R N O C S E
A R M I P R
B
A
N C
N O
2 1 2 °
N C
N O
2 1 2 °
1
7
C
F
A F M 2
C
F
F T 1
6
M
6 - O R
F
M 1
6 -
O R 5
4
F
M 2
) - (
6
S
C T H I E W S
9
7
3
4
1
D 1
) - (
D 2
O M R E H T M A G
3
) + (
) + (
4
3
C T
M A
2
2
) T U O G
( M - B A 2 K
2 - W H
D C M 1
D C M 2
1
G
T U O N P I
Y S Y A A L S E R
E D O N A K 2
F
F
u 1 5 1 .
F
F
u 1 5 1 .
u 1 3 1 .
1
F T 2
C 1
C 2 u 1 3 1 .
G
Y L P P S U
R E W P O + V
C D V 2 4
S D O D S
E V E N
C F M 1
C F M 2
N
6 1 - R D
- V
0 2 B K -
L
B
A
8
B L
6
3
4
V H M 1
V H M 2
D 1 R E
9
1
2
3
6
5
4
3
2
1
N O M M O
I / O
C
K
O S U A T S T
N I C V A
0 2 4 0 - 2 0
7
M O
I / O
C
1
T 1
C A 3 0 2 V 2 - 1 =
T 2
E
A B E L N
R
M T
C T
M A
R O T I N O M K 3
N O M M O
1 0 0 -
I / O
C
D
D P C S M
R W B L
G
V
S R E M R O S F A R N T V H
C S B M
1 E C I L S P
T
O U
1
2
3
K L B M 1
D E M 2
E T I H W M 3
A S H E P 3
R
0
K 4 B L
C A
2 4 0 V
4
N E E G R
9
K 1 B L
4
3
B L
3
3
B L
R O T C E N N C N O I P - 0 4 F O G N I W A D R
D E I
A P R P E L W P O T U O H T I W D A N P E N O R O O D H T I W N E V O S W O H S C I T A M E H C . S 1
: S E T N O
5 9
N G C ( E W ) S C H E M A T I C
Download from Www.Somanuals.com. All Manuals Search And Download.
N : G 4 C 4 E D ( T o r F n I a G d U o R ) E S c h e m a t i c
P U T E S D L O - K S C O L R E T I N Y E T S A F
Y R A N D C E O S
N O
H C I T S W
R O T I N M O
1 2 B K -
C
N C
N O
Y R A I M P R
N O
C
N C
C
N C
C C S A L S C S P
C C S A L S C S P
C C S A L S C S P
A 2 M : 1 1 F
A 2 M : 1 2 F
A 0 M : 2 3 F
N
N
G R
B R
T
P U I N E R I W 4
3 , Ø C A 3 0 2 V
R O T C E N N O C D R A C T A R S M
N
L 3
L 2
L 1
L 1
K
K
B L
B L
E Y W E R I W E 5 A S P - H 3 R E T L I F
E M
I
N
L 2
L 3
P U T E S W E N K S C O - L R E T I N Y E T S A F
H C I T S W
J 6
P 6
N C
R O T I N M O
3
4
H T
K C O L R E T I N
Y R A I M P R
C
N O
N C
P 4
J 4
1
1
1
N C
S M H 4 O 1 4 .
S T T A 3 0 0 0 W
R I M T T O O B
C
L 1
C
L 3
F 2
F 3
F 1
T
C
M W
2
2
1 1 R J
1 1 R J
N A
F
E C
N O
2
K C O L R E T I N
Y R A N D C E O S
N O
4 0 4 0
3 9 3 9
3 8 3 8
A 1 B 1
A 2
C C
C C
) - A (
E C
) + C (
) - A (
) + C (
B 2
K 5
0
3
B R
6 - O R
2
1
S E L U P C O M R E H T
K 4
3 7 3 7 C E
3 6 3 6
S S R
I R
F 0 ° 1 2
I R ) +
C (
3 5 3 5
-
+ +
-
3 2
3 1
A
B
N O
2
) - A (
C
O T
3 4 3 4
9
D 2 R E
3 3 3 3
) N T R E L U D M T O L O ( V 4 2 -
2 1 2 2
1 1 1 2
9 1 - R D
3 2 3 2 ) N T R M O ) ( C ( 4 C S M B
3 1 3 1 ) T U O E L B A N ) ( E ( 3 C S M B
3 0 3 0 ) T O V U O C N ( ) - B ( 4 K
2 3 - B K
S M H 1 O 1 3 .
S T T A
E N E M E X L H
3 - 0 1 H W
8 2 - W H
8
3
H T
1 3 - W H
3 3 0 0 W
6 N P I 6 N P I
3 - 0 1 H W
T
2 - W H
5 N P I 5 N P I
4 N P I 4 N P I
2 9 2 9 Y A L R E N A F G A M 7 K
9 2 - W H
M R G A A D I
S E T R L A U N A M
2 8 2 8
T
O U R I O T M T O B ) B - ( 5 K
L 2
8 2 - W H
7 2 - W H
D A L O
1
O T
2 7 2 7 ) T U O L I F G ( M A - B 1 K
1 6 - O R
7 2 - W H
9 1 - R D
3 N P I 3 N P I
2 N P I 2 N P I
1 N P I 1 N P I
2 6 2 6
2 5 2 5 ) 2 ( M M O C S C B M
5 2 R D -
4 2 R D -
3 2 - B K
5
1
B L
2 4 2 4 T U O V 0 1 -
0
S C B M
3
Q C
2 3 2 3
N T R
S O W E M H T G A M V 4 2 -
D 6 R E
B
A
K 7
2 2 2 2 N T R M & S V 4 - 2
2 2 - B K
2 1 2 1
2 0 2 0
1 9 1 9
1 8 1 8
1 7 1 7
N
R E R T T N I P V 4 2 -
1 2 - B K
0 2 - B K
9 1 R D -
B
9 2 - W H
4
1
B L
6
3
4
I N S P V 4 2 -
4
5
1
2
+
2 4 V
A
9
7
E
U T S
N
O D
O
K 1
D 5 R E
2 G A M
G A 1 M
1
3 2 - B K
1 1 - O R
1 6 1 6 N I
1 5 1 5
S
P
2 4 + V
6 1 R D -
3
6
T N E M A L I F K 1
P 5
1 4 1 4
R O C T N N E C O
C A 3 0 2 V 2 - 1 =
A T P S
1 3 1 3 N I L D U O A M T L O V
N F A
M A
2
Q C
1
Q C
N I P - 6 F O G I N W A R D
N
P E A S
1 2 1 2
G
K 2
K 3
A
F
F F A
F
1 1 1 1 I N W S O M R E H T G A M
1 0 1 0 N I S U A T S X T H
1 1 - O R
0 1 -
9 - O R
8 - O R
7 - O R
4
3
L E S S C B M
2
O R 9
8
9
8
7
6
5
4
3
2
1
) K O S U T A T ) ( S ( 9 C S M B
A F M 1
N I R E T N ) I O N (
N I R E T N ) I O N (
Y
Y
A D R N O C S E
A R M I P R
N C
N C
N O
2 1 2 °
B
A
C
F
C
F
7
1 1 F T
A F M 2
N O
2 1 2 °
S
6
N I R E T N I ) O N ( R O T N O I
M
6 - O R
F
M 1
F
M 2
) - (
O R 5
4
6 -
C T H I E W S
6
9
O M R E H T M A G
3
4
D 1
D 2
3
4
) - (
) + (
) + (
C T
M A
2
2
) T U O G
( M - B A 2 K
2 - W H
7
D C M 1
D C M 2
1
1
3
G
E D O N A K 2
F
F
u 1 5 1 .
F
F
u 1 5 1 .
u 1 3 1 .
1 2 F T
C 2 u 1 3 1 .
T U O N P I
C 1
Y S
Y A A L S E R
G
N
P P S L Y U
R E W P O
C D V 2 4
S D O D
S
E V E N
C F M 1
C F M 2
+ V
- V
6 1 - R D
0 2 B K -
L
B
A
8
B L
6
V H M 1
V H M 2
D 1 R E
9
3
4
1
2
3
6
5
4
3
2
1
N O M M O
I / O
C
N I C V A
0 2 4 0 - 2 0
K
O S U A T S T
7
M O
I / O
C
1
T 1
T 2
E
A B E L N
R
M T
C T
M A
R O T I N O M K 3
N O M M O
1 0 0 -
I / O
C
D
D P C S M
R W B L
G
V
C A 3 0 2 V 2 - 1 =
S R E M R O S F A R N T V H
C S B M
T
1 E C I L S P
O U
1
2
3
K L B M 1
D E M 2
A S H E P 3
R
0
K 4 B L
C A
2 4 0 V
E T I H W M 3
4
N E E G R
9
K 1 B L
4
3
B L
3
3
B L
R O T C E N N C N O I P - 0 4 F O G N I W A D R
D E I
A P R P E L W P O T U O H T I W D A N P E N O R O O D H T I W N E V O S W O H S C I T A M E H C . S 1
: S E T N O
6 1
N G C ( E D ) S C H E M A T I C
Download from Www.Somanuals.com. All Manuals Search And Download.
N : G 5 C 4 B r a z i l ( T F I o G r U n a R d E o ) S c h e m a t i c
6 3
N G C ( B R A Z I L ) S C H E M A T I C
Download from Www.Somanuals.com. All Manuals Search And Download.
Service Parts and
Illustrations
Download from Www.Somanuals.com. All Manuals Search And Download.
SERVICE PARTS AND ILLUSTRATIONS
65
FIGURE 7: NGC (TORNADO) CONTROL SYSTEM
Chapter 4: The Control System - Page 13
+24VDC
DUAL
SSR
K1
K2
K3
MECH
RELAY
K6
MECH
RELAY
MECH
RELAY
MECH
RELAY
K5
K4
3(+) 4(-)
(U.S. ONLY)
3(+) 4(-)
+
24 VDC
-
+
24 VDC
-
+
24 VDC
-
+
24 VDC
-
L
+24VDC
24VDC
POWER
SUPPLY
+V
-V
+24VDC
N
MONITOR SWITCH
NC
C
K7
RELAY
NO
MONITOR
INTERLOCK
COMMON
+24VDC
BMSC
FOR MORE DETAIL, SEE FIGURE 37
-
24 VDC
+
4
3
2
1
IR ELEMENT COMMAND
+24VDC
240 VAC
3 PHASE
OUT
0-10V
I/O COM
ENABLE
I/O COM
1
SPD
CMD
CONVECTION HEATER COMMAND
2
3
4
5
6
MAGNETRON COOLING FAN COMMAND
PRIMARY SWITCH
PRIMARY SWITCH
INTERLOCK
200-240
VAC IN
STATUS OK
GROUND
NC
C
3
2
1
I/O
NO
CONTROL
SECONDARY SWITCH
SECONDARY SWITCH
INTERLOCK
NC
C
BOARD
NO
VOLTAGE INPUT
COMMON
VOLTAGE
SENSOR
COMMON
A (-)
C (+)
IR THERMOCOUPLE
EC THERMOCOUPLE
VFD
DISPLAY
A (-)
C (+)
A (-)
C (+)
CC THERMOCOUPLE
1
1
2
2
14
14
1
1
2
2
14
14
KEYPAD
Download from Www.Somanuals.com. All Manuals Search And Download.
66
SERVICE PARTS AND ILLUSTRATIONS
FIGURE 17: CONTROL SYSTEM PANEL ENCLOSURE AND PARTS
Chapter 4: The Control System - Page 20
6
5
7
1
4
8
10
2
9
3
CONTROL SYSTEM PANEL PARTS
6. 100193
3-Pin Power Cable
7. 100184
26-Pin Ribbon Cable
Figure 17.
8. NGC-1110-1
NGC-1110-2
NGC-1110-3
NGC-1110-4
9. 100506
Keypad, NGC, Standard
Keypad, NGC, SWY
Keypad, NGC, SBK
Keypad, NGC, OUT
Smart Card Reader
1. NGC-1040
NGC-1209
2. 102960
3. 100508
(Varies)*
Cover, Keypad/Display, Std
Cover, Keypad/Display, SBK
Nut, 4-40, Stainless
Smart Card, Blank
Smart Card, Programmed*
Display Svc Kit (includes
Items 5, 6, and 7)
10. 100182
Smart Card Reader Cable
4. NGC-3023
* Contact TurboChef (800.90TURBO or
+1 214.379.6000) for more info/part numbers.
5. 101954
Spacer, 1/2” Lg, Aluminum
Download from Www.Somanuals.com. All Manuals Search And Download.
SERVICE PARTS AND ILLUSTRATIONS
67
FIGURE 18: MONITOR CIRCUIT - SHOWN IN FAILSAFE STATE
Chapter 5: The Microwave System - Page 25
PRIMARY AND SECONDARY
INTERLOCKS (CLOSED)
K2 HV
RELAY
T1
HV TRANSFORMER
F3 FUSE
20 AMP
CDS
3
1
4
7
NC
C
1
LINE VOLTAGE
(L1)
(BLOWN)
3
6
9
CONTROL
CONTROL
NO
A
B
2
CDP
NC
C
+24 VDC
T2
HV TRANSFORMER
3
NO
1
K3 MONITOR
RELAY
LINE VOLTAGE
(L2)
1
7
4
3
6
2
9
A
B
MONITOR SWITCH
(OPEN)
+24 VDC
CDM
NC
C
CONTROL
NO
FIGURE 20: MICROWAVE SYSTEM PARTS
Chapter 5: The Microwave System - Page 27
15. NGC-3061-1 Filament Transformer (2 per
oven, 1 per kit) - USA, S. Korea
NGC-3061-2 Filament Transformer (2 per
oven, 1 per kit) - Europe, Asia-
11. NGC-3062-1 HV Transformer (2 per oven, 1 per kit)
USA, Latin America, Korea
NGC-3062-2 HV Transformer (2 per oven, 1 per kit)
Europe, Asia-Pacific
NGC-3062-3 HV Transformer (2 per oven, 1 per kit)
Japan
Pacific, Latin America
NGC-3061-3 Filament Transformer (2 per
oven, 1 per kit) - Japan
16. 100083
17. 101273
18. 101273
19. 101273
Mag Cooling Fan
K3 Monitor Relay
K2 High Voltage Relay
K1 Filament Relay
F3 Fuse - 20 Amp
12. NGC-3020 High Voltage Capacitor (2 per oven,
1 per kit) - USA, Latin America, Korea
NGC-3020-2 High Voltage Capacitor (2 per oven,
1 per kit) - Europe, Asia-Pacific,
20. 100599
Japan 50 Hz
21. NGC-3015
22. NGC-3017
23. NGC-3016
Magnetron (2 per oven, 1 per kit)
Wave Guide (Rear)
Wave Guide (Front)
100207
High Voltage Capacitor (2 per oven,
1 per kit) - Japan 60 Hz
13. 100481
High Voltage Diode (x2)
* See Comprehensive Part List, page 79.
14. Mag Fan Relay, Generic
NGC-3030-1 North America
NGC-3030-4 Europe, Asia-Pacific MPh
NGC-3030-7 Europe Single Phase
NGC-3030-12 Brazil Single Phase
13
14
12
11
Mag Fan Relay, SWY
15
16
NGC-3030-2 North America
NGC-3030-6 Europe, Brazil Single Phase
NGC-3030-9 Europe, Asia-Pacific MPh
17
18
19
Mag Fan Relay, SBK
NGC-3030-3 North America
NGC-3030-13 Europe, Brazil Single Phase
NGC-3030-14 Indiana/North Carolina
NGC-3030-15 Europe, Asia-Pacific MPh
23
22 21
20 15
Mag Fan Relay, Additional*
Download from Www.Somanuals.com. All Manuals Search And Download.
68
SERVICE PARTS AND ILLUSTRATIONS
FILAMENT AND HIGH
VOLTAGE TERMINALS
FIGURE 21: MICROWAVE SYSTEM PARTS
Chapter 5: The Microwave System - Page 27
FA
F
25
26
27
28
Microwave System Parts
24
24. 100186
Magnetron Wire
25. NGC-3015 Magnetron
(ORG)
(BLK)
COOLING
FINS
26. 102070
Magnetron Thermostat
27. NGC-1163 Insulator, Adhesive
28. 100684
Screw #6 Sheet Metal
ANTENNA
FIGURE 22: WAVE GUIDE COVER/WAVE GUIDE REMOVAL AND REPLACEMENT
Chapter 5: The Microwave System - Page 29
31
32
33
34
35
36
29
30
37
Wave Guide/Wave Guide Cover Parts
º
33. 102809
34. NGC-3017 Assy, Wave Guide, Rear
35. NGC-3015 Magnetron, Rear
36. NGC-3015 Magnetron, Front
37. NGC-3016 Assy, Wave Guide, Front
Screws, #8-32 x 3/8” CSK (100 )
29. NGC-3036 Kit, Wave Guide Cover (Includes
Item 31 and sealant)
30. 101666
31. 101701
Screws, #8-32 x 1/2, Cap
Screws, #8, SST
32. NGC-1047 Support, Frame
Download from Www.Somanuals.com. All Manuals Search And Download.
SERVICE PARTS AND ILLUSTRATIONS
69
FIGURE 24 & 25: HIGH VOLTAGE DIODE AND MAGNETRON
Chapter 5: The Microwave System - Page 32
FA
F
FILAMENT AND
HIGH VOLTAGE
TERMINALS
ANTENNA
FIGURE 26: OVEN DOOR REMOVAL AND PARTS
41
Chapter 6: The Oven Door - Page 37
40
39
Cook Door Parts
38
38. 102809
39. NGC-3067 Assy, Oven Door
(Traditional)
#8-32 x 3/8” PFH CSK
NGC-3067-2 Assy, Oven Door
(SBK)
40. NGC-1061 Hinge Block
41. 102804
42. 102805
43. 101381
44. 102140
45. 102350
46. 101191
Right Hinge
Left Hinge
#10-32 x 1/2” Hex SS
#10 Flat
#10 Split Lock
Cap, Hole
42
43 44
45 46
Download from Www.Somanuals.com. All Manuals Search And Download.
70
SERVICE PARTS AND ILLUSTRATIONS
FIGURE 29: PRIMARY AND SECONDARY INTERLOCKS ADJUSTMENT AND PARTS - OLD SWITCH SETUP
Chapter 6: The Oven Door - Page 40
50
49
APPLY HI-TEMP
GREASE TO AREA
48
47
Primary and Secondary Interlock Switch Parts
47. NGC-1076-2 Actuator, Door
48. 102809
49. 102921
50. 101557
51. 102012
Screw, #8-32 x 3/8” 100Þ CSK
Screw, #8-32 x 3/8”
Screw, #4-40 x 1 1/4”
Interlock Switches
52. NGC-3033 Assy, Door Switch*
51
*See Figure 32 for Assy Detail.
52
TOGGLE TO BE LEVEL
OR NEARLY LEVEL
SWITCH GAP = 0.020”
FIGURE 30: DOOR SWITCH ASSEMBLY AND PARTS
Chapter 6: The Oven Door - Page 41
58 x2
Door Switch Parts
56
62 55
53. NGC-1072 Bracket Latch
54. 102012
Switch, Micro, 0.1A/125VAC
55. NGC-1087 Spring Door Latch
56. NGC-1073 Toggle, Latch
57. 101119
58. 100059
Pin, Clevis, ø3/16 x 1” Lg
Bearings, Bronze,
61
3/16ID x 5/16OD x 1/4” Lg
Screw, #4-40 x 1.25” Lg,
PPHD, CRES
Screw, #8-32 x 3/8”, Internal
Tooth Sems, PPHD, SS
59. 101557
60. 102921
60
61. NGC-1126 Plate, Door Switch
62. NGC-3006 Grease, USDA H-1, Food Grade
63. 101296
Ring, E-clip
57
53
59
63
54
Download from Www.Somanuals.com. All Manuals Search And Download.
SERVICE PARTS AND ILLUSTRATIONS
71
FIGURE 31: MONITOR SWITCH ADJUSTMENT AND ASSEMBLY - OLD SWITCH SETUP
64
Chapter 6: The Oven Door - Page 41
68
65
66
x2
69
68
67
67
68
REF
Monitor Safety Switch Parts
64. 102804
65. 102012
66. NGC-1126 Plate, Door Switch
Hinge, Right
Switch, Limit, Micro
67. 101912
68. 102921
69. 102902
Standoff, #8-32F/Fx1 in S
Screw, #8-32 x 3/8”
Screw, 4-40 x 5/8”
FIGURE 32: PRIMARY INTERLOCK ADJUSTMENT AND PARTS - NEW SWITCH SETUP
Chapter 6: The Oven Door - Page 42
APPLY HI-TEMP
72
71
GREASE TO AREA
70
73
Primary Safety Switch Parts
76
74
75
70. 102809
71. 102921
72. 101555
73. 102012
Screw, #8-32 x 3/8” 100Þ CSK
Screw, #8-32 x 3/8”
Screw, #4-40 x 3/4”
Interlock Switch
75. Adjustment Tools (included with Item 74)
NGC-1215 Door Switch Gauge
NGC-1340 Shim Tool, 0.060”
NGC-1344 Shim Tool, 0.030”
76. NGC-1169-1 Shim, 0.030”
NGC-1169-2 Shim, 0.045”
74. NGC-3033 Assy, Door Switch*
Download from Www.Somanuals.com. All Manuals Search And Download.
72
SERVICE PARTS AND ILLUSTRATIONS
FIGURES 33 AND 34: SECONDARY AND MONITOR SWITCH ADJUSTMENT AND ASSEMBLY - NEW SWITCH SETUP
Chapter 6: The Oven Door - Page 43
77
78 x2
82
79
83 x2
82
81
80
80 81
82
Secondary and Monitor Safety Switch Parts
77. 102804
78. 102012
Hinge, Right
Switch, Limit, Micro (x2)
79. NGC-1126 Plate, Door Switch
80. 101914
81. 101915
Standoff, #8-32 F/F x 1”, 5/16” DIA
Standoff, #8-32 M/F x 5/16”, 1/4” DIA
(attached to outside of Item 80.)
Screw, #8-32 x 3/8”
82. 102921
83. 101558
Screw, 4-40 x 1.125”
Download from Www.Somanuals.com. All Manuals Search And Download.
SERVICE PARTS AND ILLUSTRATIONS
73
FIGURE 35: OVEN DOOR ASSEMBLY
Chapter 6: The Oven Door - Page 44
99
94
93
101
84
98 AR
100
x2
87
85
90 x2
95
91
92 x6
x2
86
x17
97
88 89 96
x2
Oven Door Parts
84. NGC-3067*
NGC-3067-2*
85. NGC-3021
86. NGC-1061
87. 102750
Door, NGC, Generic*
Door, NGC, SBK*
Kit, Shunt Plate
95. NGC-1127
96. 102748
Channel, Door Handle
Screw, #8-32 x 3/8”, Torx
Security
Screw, #8 x 1/2” PTH
Tape, Aluminum
Name Plate, TurboChef
Nut, Push, 1/8”
Hinge Block
97. 101688
98. 102698
99. NGC-1155
100. 101293
101. NGC-1170
Handle, Door, Generic
Handle, Door, SBK
Actuator, Door
Shim, Door Latch
Bolt, 1/4”-20 x 1.00
Label, Precaution
#8-32 x 3/8” CSK 100°
Label, Caution Empty
Door Insulation 1
Door Insulation 2
NGC-1216
88. NGC-1076-2
89. NGC-1132
90. 102945
91. NGC-1138
92. 102809
93. NGC-1165
94. NGC-1125-1
NGC-1125-2
Label, Service
*
Includes items 85 - 101.
Download from Www.Somanuals.com. All Manuals Search And Download.
74
SERVICE PARTS AND ILLUSTRATIONS
FIGURE 37: CONVECTION CIRCUIT BLOCK DIAGRAM
Chapter 7: Convection Circuit - Page 47
BOTTOM IR CONTROL
WH-28
MAIN HX CONTROL
OT1 - HI-LIMIT
MANUAL RESET
WH-30
+24
C
NC
31
RD-19
HX ELEMENT
3300 WATTS
13.1 OHMS
32
OR540
BL510
C
NC
21
22
HT520
1
C
NC
11
SSR
12
K5
K4
BOTTOM IR
3000 WATTS
14.4 OHMS
B2
A2
B1 A1
2
L2
L1
MOTOR SPINS
COUNTER-CLOCKWISE
FROM BACK
M4 GREEN
M3 WHITE
M2 RED
4
3
2
1
240 VAC
3 PHASE
OUT
M1 BLACK
BMSC
RD-24
0-10V
I/O COM
ENABLE
I/O COM
STATUS OK
I/O COM
1
BK-25
WH-31
BK-32
OR-9
SPD CMD
2
3
4
5
6
200-240
VAC IN
3
2
1
BLWR
MTR
GROUND (GREEN)
L2
L1
Download from Www.Somanuals.com. All Manuals Search And Download.
SERVICE PARTS AND ILLUSTRATIONS
75
FIGURE 38: CONVECTION CIRCUIT ASSEMBLY AND PARTS
Chapter 7: Convection Circuit - Page 48
x10
109
110
114
105
x6
104
103
x8
102
107
113
111
112
108
106
Convection Circuit Parts
102. 101688
Screw, #8 x 1/2” PTH
112. NGC-3005 Relay, K4/K5 SSR
103. NGC-1081 Cover, Motor
113. 100592
114. 102075
Fuses, F1 and F2 (12 Amp)
High-Limit Thermostat
104. 100906
Nut, 1/4”-20, Flange
**
105. NGC-1025 Assy, Blower Motor
106. NGC-3007 Kit, Fan Blade
107. NGC-1024 Sealing Block, Blower
108. NGC-1023 Clamp, Blower Seal
115. NGC-1043 Gasket, Convection Heater
*
*
If entire motor is needed, order NGC-1025.
*
*
If only hardware (screws, nuts) or seal is needed,
contact 800.90TURBO or +1 214-379-6000.
109. 101688
110. NGC-3011 Heater, Convection
111. 100443 Controller, Motor
Screw, #8 x 1/2” PTH
** Not shown for clarity.
Download from Www.Somanuals.com. All Manuals Search And Download.
76
SERVICE PARTS AND ILLUSTRATIONS
FIGURE 39: IR ELEMENT AND CATALYTIC CONVERTER PARTS AND ASSEMBLY
Chapter 8: IR Element and Catalytic Converter - Page 52
122
119
118
119
x4
120
116
117
122
121
118
IR Element and Catalytic Converter Parts
116. 101312
117. 102449
Snap Ring
Washer, Shim
121. NGC-1030 Clip, Catalytic Converter
(Non-SBK)
118. NGC-3003 IR Element
119. NGC-1116 Shield, Microwave
NGC-1233 Clip, Catalytic Converter
(SBK)
120. 101688
Screw, #8 x 1/2” Sht Metal PTH
122. NGC-1012 Catalytic Converter
Wire Harness Replacement P/N
Low Voltage Harness
Power Cord
123. 100185
Old Switch Setup
126. 100187
100194
USA
NGC-1418 New Switch Setup
NGC ED - Europe, Asia, Pacific
UK, Ireland, Brazil
NGC EW- Europe, Asia, Pacific
Australia
100195
103187
103195
Line Voltage Harness
124. NGC-1150-1 North America
NGC-1150-2 UK, Ireland, Brazil
NGC-1150-3 Eu, Asia, Pacific, Au, Japan
NGC-1383 Japan 3Ph
NGC-1390 Japan 1Ph
Magnetron Wire
125. 100186
All NGC Ovens
Download from Www.Somanuals.com. All Manuals Search And Download.
SERVICE PARTS AND ILLUSTRATIONS
77
FIGURE 46: COVERS AND MISCELLANEOUS PARTS - NON-SBK OVENS
129
x2
130
132 x2
128
140
144
131
x3 per panel
136
142
T
h
s
i
d
e
v i
c
O p
e
c
r
e
c
m
o
p
l
i
e
s
o
w i a t t h i
d
n
i
s
s
P
u
b 1 .
j
e
T
h
N
O
s
i
e
v i
2 .
c
T
I
C a
E
r
:
t
t
e
e
m
a
s
i
d
a
e
T
h
t
1 8
o
f
t
h
o
e
t
h F
C
y
f
n
o
t
c a
v
u
i
s
c
e
h
r
o
l
l
o
m
u
s t
a
c c
w i
n
g
c
v i
e
C
R
u
l
e
s
e
p
t
a
n
n
c
i
d
u
d
i
n
g
i
u n d e s i r
n
o
n
d
i
t
i
o
m
n
f
s :
y
u
l
i
n
.
i
e r
n
e
d
o
p
s
T
i
O
D
h
t
e
t
e
t
e
e r
n .
v e
i
r
H
H
p
S
F
l i
r
f
t
i
a
o
n
c
n
e
r
f e r
e c n e
r
f
e
e
r
n
o
m c
d e
p
l
e
s
w i
t
h
a
p
c
e
e
t
h
a
c
.
t
m
a
a
l
P
y
c
f o
r c
e
a
u
s e
m
r
a
n
a
b
l
t
e
a
s e c
S
d a r
e
n
t
i
o
n
s
o
f
T
o
d
2 1
C
F
R
1 0 3 0 .
1
o
p r
c
v i
u
e
d
d
e
s h o c k ,
o
n
t
n
i
n
c
p
r
o n
c
0 .
W o
A
t
t
r
c
t
e g r
o
e
p
R
c
i
n
s
t
N
I
N
G e
t
i
o
n
a
a
l
o
p
g
r
l e
l
e
o
u
n
d
e
d
o
u
t
t
s
o
P o
r
r
a u s s u
e
l
e
c
i
c t a
r
l
A
V
e
r
p r
i
t
u r e
r e r
E
q
b
c o
r
c
m
S
E
M e
t
i
E c o
o
n
N t
c
T
a
n
c h
m
e
t
e
n
l
y
R
T
I
z
.
S
o
n
s e
u
l
e
m e n t
i
s
e
a
t
t
i
n
u
e
c
e
o
n
r r
:
e
t
e
c h
o
t
a
u n
e .
e
p
r
c
i
s
e
x2
139
135 x4
137
138
T
T
O
I
ON
U
C
A
-
-H
141
143 x4
127
133
134 x4
Covers and Miscellaneous Parts - Non-SBK
127. NGC-1069-1 Cover, Left Side
128. NGC-1069-2 Cover, Right Side
NGC-1274
Rack, Recessed (International)
Rack, Raised
Stone, Unglazed
Stone, Clear Glazed
Stone, Fiber-Reinforced
NGC-3064
138. NGC-3037
NGC-3038
129. NGC-1068
130. 102752
Cover, Top
Screw, #8-16 TORX HD
Security
NGC-3063
131. 101688
132. 102921
Screw, #8 Serrated Phillips
TRHD, CRES
Screw, #8-32 x 3/8”, PPHD,
SEM, Int Tooth, SS
139. NGC-1176-1 Label, Schematic (N. America)
NGC-1176-2 Label, Schematic (UK/Ireland)
NGC-1176-3 Label, Schematic (Eu/Asia/Pac
400VAC)
133. NGC-1071-2 Cover, Bottom Front
NGC-1176-4 Label, Schematic (Eu/Asia/Pac
230 VAC)
134. 100785
100781
135. 101191
Leg, NGC, Black Plastic
Leg, NGC, Stainless Steel
Hole Plug, 1/2” Dia, Black
NGC-2020
140. NGC-1177
141. NGC-1148
142. 102962
Label, Schematic (Gen. Brazil)
Label, Service Assistance
Label, Caution Hot
Nut, KEPS HEX, #8-32, Ext
Tooth, CRES
136. NGC-1054-1 Assy, Keypad/Display, Cover,
Standard
NGC-1054-2 Assy, Keypad/Display, Cover,
Subway
137. NGC-1064-1 Rack, Standard (USA)
143. NGC-1187
144. NGC-1082
Pad, Abrasive Non-slip
Cover, Cooling Fan
Download from Www.Somanuals.com. All Manuals Search And Download.
78
SERVICE PARTS AND ILLUSTRATIONS
FIGURE 47: COVERS AND MISCELLANEOUS PARTS - SBK OVENS
147
148 x2
158
x2
150
146
162
149 x3 per panel
154
160
T
h
s
i
d
e
v i
c
O p
e
c
r
e
c
l
o
m
p
i
e
s
a
w
t
i i
t
h
P
o
n
i
s
s
T
u
h
b 1 .
j
e
N
O
s
i
d
e
v i
2 .
c
T
I
C a
E
r
:
t
t
e
m
a
s
i
d
a
e
T
h
t
1 8
o
f
t
h
o
e
t
h F
C
y
f
n
o
t
c a
v
u
i
s
c
e
h
r
o
l
l
o
e
m
u
s t
a
c c
w i
n
g
c
v i
e
C
R
u
l
e
s
e
p
t
a
n
n
c
i
d
u
d
i
n
g
u n
i n
d
e
s
i
r
o
n
d
i
t
i
o
m
n
f
s :
y
f e r
u
l
i
n
.
i
n
e
d
o
p
s
i
O
T
h
t
e
t
e
t
e
e r
n .
e v n
c
D
H
H
p
S
F
l i
r
t
i
a
o
c
n
e
r
f e r
e c n e
r
f
e
r
n
o
m
p
l i w i
e d e r
e
s
t
h
a
p
c
e
e
t
h
a
e
c
.
t
m
a
a
l
P
y
c
f o
r
e
n c
a
u
s e
m
r
a
a
b
l
t
e
a
s e c
d a r
S
e
n
t
i
o
n
s
o
f
T
o
d
2 1
C
F
R
1 0 3 0 .
1
o
p r
c
v i
d
e
s h o c k ,
o
n
t
i
n
u
c
d
p
r
o
n
n
e
c
0 .
W o
A
t
t
r
c
t
e g r
o
e
p
R
c
i
n
s
t
N
I
N
G e
t
i
o
n
a
a
l
o
p
g
r
l e
l
e
o
u
n
d
e
d
o
u
t
t
s
o
o P u
s s u
r
a
r
e
b
l
e
c
i
c t a
r
l
A
V
e
r
p
r
t
u r e
r e r
E
i
q
c o
r
l
y
c
m
S I
S
E
M e
t
z
i
N t
c
T
a
n
c h
m
e
t
e
n
R
T
.
o
n
o
n
s e
u
l
e
m e n t
i
s
e
a
t
t
i
n
u
e
c
e
o
n
r r
:
e
t
e
c h
o
t
a
u n
e .
e
p
r i s e
c
x2
157
153 x4
T
T
O
I
ON
U
C
A
-
-H
155
156
159
161
x4
145
151
152 x4
Covers and Miscellaneous Parts - SBK
145. NGC-1213-1 Cover, Left Side
146. NGC-1213-2 Cover, Right Side
156. NGC-3038
157. NGC-1176-1 Label, Schematic (USA)
Stone, Clear Glazed
147. NGC-1211
148. 102756
Cover, Top
Screw, #8 x 1/2 Lg
NGC-1176-2 Label, Schematic (UK/Ireland)
NGC-1176-3 Label, Schematic (Eu/Asia/Pac
400VAC)
NGC-1176-4 Label, Schematic (Eu/Asia/Pac
230 VAC)
TORX HD Security
Screw, #8 Serrated Phillips
TRHD, CRES
Screw, #8-32 x 3/8”, PPHD,
SEM, Int Tooth, SS
Cover, Bottom Front
Leg, NGC, SBK, 4” (qty 1)
Hole Plug, 1/2” Dia, Black
149. 101691
150. 102922
NGC-2011-8 Label, Schematic (Latin America)
158. NGC-1177
159. NGC-1148
160. 102962
Label, Service Assistance
Label, Caution Hot
Nut, KEPS HEX, #8-32, Ext
Tooth, CRES
151. NGC-1212
152. 100784
153. 101191
154. NGC-1054-3 Assy, Keypad/Display, Cover
155. NGC-3064 Rack, Raised
161. NGC-1187
162. NGC-1082
Pad, Abrasive Non-slip
Cover, Cooling Fan
Download from Www.Somanuals.com. All Manuals Search And Download.
Comprehensive Part List
Download from Www.Somanuals.com. All Manuals Search And Download.
COMPREHENSIVE PART LIST
79
ITEM DESCRIPTION
Actuator, Door
Assembly, Keypad/Housing, Cover, Standard
Assembly, Keypad/Housing, Cover, SWY
Assembly, Keypad/Housing, Cover, SBK
Bearings, Bronze, 3/16 ID x 5/16 OD x 1/4
Block, Hinge
Block, Sealing, Blower Motor
Blower Motor
Bolt, 1/4-20 x 1.00
PART NUMBER
NGC-1076-2
NGC-1054-1
NGC-1054-2
NGC-1054-3
100059
NGC-1061
NGC-1024
NGC-1025
102945
FIGURE NUMBER (PAGES 65-78)
29, 35
46
46
47
30
26, 35
38
38
35
Bracket, Stacking
Cable, Ribbon, 26-Pin
TC3-0323
100184
None
17
Cable, Smart Card Reader
Cable, VF Display, 3-Pin
Cap, Hole, Door
100182
100193
101191
17
17
26
Capacitor, HV (Europe, Asia-Pacific)
Capacitor, HV (Japan)
NGC-3020-2
100207
20
20
Capacitor, HV (USA, Latin America, S. Korea)
Cart, TurboChef Oven, 18”
Cart, TurboChef Oven, 24”
Catalytic Converter
Channel, Door Handle
Clamp, Blower Seal
NGC-3020
NGC-1217-2
NGC-1217-1
NGC-1012
NGC-1127
NGC-1023
103180
103380
103183
103383
NGC-1030
NGC-1233
103195
NGC-1390
NGC-1383
100194
103187
100195
100187
NGC-1071-2
NGC-1212
NGC-1082
NGC-1040
NGC-1209
NGC-1069-1
NGC-1213-1
NGC-1081
NGC-1069-2
NGC-1213-2
NGC-1068
NGC-1211
NGC-3036
100481
20
4 (Page 4)
4 (Page 4)
39
35
38
None
None
None
None
39
Cleaner, TurboChef Oven, Domestic
Cleaner, TurboChef Oven, International
Cleaner, Wave Guide Cover, Domestic
Cleaner, Wave Guide Cover, International
Clip, Catalytic Converter, Standard
Clip, Catalytic Converter, SBK
Cord, Power (Australia)
Cord, Power (Japan 1Ph)
Cord, Power (Japan 3Ph)
Cord, Power (NGC ED - Europe, Asia-Pacific)
Cord, Power (NGC EW - Europe, Asia-Pacific)
Cord, Power (UK, Ireland, Brazil)
Cord, Power (USA)
Cover, Bottom Front, Standard
Cover, Bottom Front, SBK
Cover, Cooling Fan
Cover, Keypad/Display, Standard
Cover, Keypad/Display, SBK
Cover, Left Side, Standard
Cover, Left Side, SBK
39
None
None
None
None
None
None
None
46
47
46, 47
17
17
46
47
38
46
47
46
47
22
20
Cover, Motor
Cover, Right Side, Standard
Cover, Right Side, SBK
Cover, Top, Standard
Cover, Top, SBK
Cover, Wave Guide
Diode, HV
Display
Door, Standard
Door, SBK
NGC-3023
NGC-3067
NGC-3067-2
17
26, 35
26, 35
Download from Www.Somanuals.com. All Manuals Search And Download.
80
COMPREHENSIVE PART LIST
ITEM DESCRIPTION
Fan Blade, Motor
Fan, Magnetron Cooling
PART NUMBER
NGC-3007
100083
FIGURE NUMBER (PAGES 65-78)
38
20
Filter, EMI, 1Ph (USA, Europe, Latin America, Japan)
Filter, EMI, 3Ph (Europe, Asia-Pacific, Korea, Japan)
Fuse, F1, 12 Amp
100542
100545
100592
None
None
38
Fuse, F2, 12 Amp
100592
38
Fuse, F3, 20 Amp
100599
20
Gasket, Convection Heater
Gauge, Door Switch (Adjustment Tool)
Grease, Food Grade, USDA H-1
Guard, TurboChef Oven, Domestic
Guard, TurboChef Oven, International
Handle, Door, Standard
NGC-1043
NGC-1215
NGC-3006
103181
103381
102750
38
32
30
None
None
35
Handle, Door, SBK
NGC-1216
NGC-1150-3
NGC-1150-1
NGC-1150-2
100185
NGC-1418
NGC-3003
NGC-3011
102805
None
None
None
None
None
None
39
Harness, Line Voltage (Europe, Asia-Pacific, Japan)
Harness, Line Voltage (North America)
Harness, Line Voltage (UK, Ireland, Brazil)
Harness, Low Voltage, Old Switch Setup
Harness, Low Voltage, New Switch Setup
Heater Element, IR
Heater, Convection
Hinge, Left
38
26
Hinge, Right
Insulation, Door, 1
102804
26, 31, 33, 34
35
NGC-1125-1
NGC-1125-2
NGC-1163
NGC-1110-4
NGC-1110-1
NGC-1110-3
NGC-1110-2
NGC-1165
NGC-1148
NGC-1138
NGC-1176-4
NGC-1176-3
NGC-1176-1
NGC-1176-2
NGC-2020
NGC-2011-8
NGC-1177
NGC-1170
NGC-1072
NGC-1087
100785
Insulation, Door, 2
Insulator, Adhesive
Keypad, OUT
Keypad, Standard
Keypad, SBK
Keypad, SWY
Label, Caution, Empty Cavity
Label, Caution, Hot
Label, Precaution for Safe Use
Label, Schematic (Europe, Asia-Pacific, 230 VAC)
Label, Schematic (Europe, Asia-Pacific, 400 VAC)
Label, Schematic (USA)
Label, Schematic (UK, Ireland)
Label, Schematic, Standard (Latin America)
Label, Schematic, SBK (Latin America)
Label, Service Assistance
35
21
17
17
17
17
35
46, 47
35
46, 47
46, 47
46, 47
46, 47
46
47
46, 47
35
Label, Service Number
Latch, Bracket
Latch, Spring Door
Leg, 4”, Black Plastic
30
30
46
Leg, 4”, Standard, Stainless Steel
Leg, 4”, SBK
100781
100784
46
47
Leg, 7”, SBK Kit (4 legs)
Magnetron
Motor Controller
NGC-3068
NGC-3015
100443
47
20, 21
38
Nameplate, TurboChef
Nut, Crescent, Keps, Hex, #8-32, External Tooth
NGC-1155
102692
35
46, 47
Download from Www.Somanuals.com. All Manuals Search And Download.
COMPREHENSIVE PART LIST
81
ITEM DESCRIPTION
Nut, Flange, 1/4-20
PART NUMBER
100906
FIGURE NUMBER (PAGES 65-78)
38
Nut, M5, Yellow Zinc (Magnetrons, Bottom Electrical Plate)
Nut, Push, 1/8
100101
101293
None
35
Nut, Stainless, #4-40
102960
17
Pad, Abrasive, Non-Slip
Pin, Clevis, 3/16 Diameter x 1” Long
Plate, Door Switch
Plug, Hole, Black, 1/2” Diameter
Rack, Raised
Rack, Recessed
NGC-1187
101119
NGC-1126
101191
NGC-3064
NGC-1274
NGC-1064-1
100506
46, 47
30
30, 31, 33, 34
46, 47
46, 47
46
46
17
Rack, Standard
Reader, Smart Card
Relay, K1, Filament Transformers
Relay, K2, HV Transformers
101273
101273
20
20
Relay, K3, Monitor
101273
20
Relay, K4/K5, Solid State, Convection Heater/IR Element
Relay, K6, 208/240 Transformer Taps (USA only)
Relay, K7, Magnetron Fan, DNK
Relay, K7, Magnetron Fan, OXXO
Relay, K7, Magnetron Fan, SBK (USA)
Relay, K7, Magnetron Fan, SBK (Europe, Asia-Pacific MPh)
Relay, K7, Magnetron Fan, SBK (Europe SPh)
Relay, K7, Magnetron Fan, SBK (Indiana/North Carolina)
Relay, K7, Magnetron Fan, Standard (USA)
NGC-3005
101272
38
None
None
None
20
20
20
20
NGC-3030-11
NGC-3030-5
NGC-3030-3
NGC-3030-15
NGC-3030-13
NGC-3030-14
NGC-3030-1
20
Relay, K7, Magnetron Fan, Standard (Europe, Asia-Pacific MPh) NGC-3030-4
20
Relay, K7, Magnetron Fan, Standard (Europe SPh)
Relay, K7, Magnetron Fan, Standard (Latin America)
Relay, K7, Magnetron Fan, SWY (USA)
Relay, K7, Magnetron Fan, SWY (Europe, Asia-Pacific MPh)
Relay, K7, Magnetron Fan, SWY (Europe, Latin America SPh)
Relay, K7, Magnetron Fan, TESCO
Relay, K7, Magnetron Fan, WAWA
Ring, E-clip
NGC-3030-7
NGC-3030-12
NGC-3030-2
NGC-3030-9
NGC-3030-6
NGC-3030-10
NGC-3030-8
101296
20
20
20
20
20
None
None
30
Ring, Snap
101312
39
Screw, #4-40 x 5/8
102902
31
Screw, #4-40 x 3/4
101555
32
Screw, #4-40 x 1 1/8
101558
33, 34
Screw, #4-40 x 1 1/4
101557
29, 30
Screw, #6, Sheet Metal
100684
21
Screw, #8, Crescent, TRHD, Serrated Phillips
Screw, #8, Crescent, TRHD, Serrated Phillips, Black Oxide
Screw, #8-16, Torx Security
101688
101691
102752
35, 38, 39, 46
47
46
Screw, #8-16 x 1/2, Torx Security, Black Oxide
Screw, #8-18, SS
102756
101701
47
22
Screw, #8-32 x 3/8
102921
29, 30, 31, 32, 33, 34, 46
Screw, #8-32 x 3/8, PFH, CSK
Screw, #8-32 x 3/8, PPHD, SEM, SS, Internal Tooth
Screw, #8-32 x 3/8, Torx Security
Screw, #8-32 x 1/2, Cap
Screw, #10-32 x 1/2, SS, Hex
Shield, Microwave
102809
102922
102748
101666
101381
NGC-1116
22, 26, 29, 32, 35
47
35
22
26
39
Download from Www.Somanuals.com. All Manuals Search And Download.
82
COMPREHENSIVE PART LIST
ITEM DESCRIPTION
Shim, 0.030
Shim, 0.045
Shim, Door Latch
Shim Tool, 0.030
Shim Tool, 0.060
Shunt Plate, Door
Smart Card, Blank
PART NUMBER
NGC-1169-1
NGC-1169-2
NGC-1132
NGC-1344
NGC-1340
NGC-3021
100508
FIGURE NUMBER (PAGES 65-78)
32
32
35
32
32
35
17
Smart Card, Programmed (call TurboChef for Part Numbers) Varied
17
Spacer, Aluminum, 1/2”
101954
17
Standoff, #8-32 F/F x 1”
101912
31
Standoff, #8-32, F/F x 1”, 5/16 Diameter
Standoff, #8-32, M/F x 5/16”, 1/4 Diameter
Stone, Baking, Fiber-Reinforced
Stone, Baking, Glazed, Clear
Stone, Baking, Unglazed
Support, Frame
Switch, Door, Assembly
Switch, Door (Component)
Tape, Aluminum
101914
101915
33, 34
33, 34
46
46, 47
46
22
29, 32
29, 30, 31, 32, 33, 34
35
NGC-3063
NGC-3038
NGC-3037
NGC-1047
NGC-3033
102012
102698
Thermocouple, Electrical Compartment (EC)
Thermocouple, Cook Cavity (CC)
Thermostat, High-Limit
700-1199
NGC-1140
102075
None
None
38
Thermostat, Magnetron
102070
21
Toggle, Latch
NGC-1073
NGC-3061-1
NGC-3061-2
NGC-3061-3
NGC-3062-1
NGC-3062-2
NGC-3062-3
102140
30
20
20
20
20
20
20
26
Transformer, Filament (USA, Korea)
Transformer, Filament (Europe, Asia-Pacific, Latin America)
Transformer, Filament (Japan)
Transformer, HV (USA, Latin America, Korea)
Transformer, HV (Europe, Asia-Pacific)
Transformer, HV (Japan)
Washer, Flat, #10
Washer, Shim
102449
39
Washer, Split Lock, #10
102350
26
Wave Guide, Front
Wave Guide, Rear
Wire, Magnetron
NGC-3016
NGC-3017
100186
20, 22
20, 22
21
Download from Www.Somanuals.com. All Manuals Search And Download.
|
Tascam Printer P11 TAS User Manual
Teac Computer Drive SD 3250N User Manual
Technicolor Thomson MP3 Player RR96L User Manual
Tiffen Camera Accessories UltraPol Filters User Manual
Toastmaster Kitchen Grill GR39A User Manual
Toshiba Projector TDP T40 User Manual
Toshiba TV DVD Combo MD 14FN1 User Manual
Tripp Lite Power Supply SURBC2030 User Manual
Uniden Cordless Telephone EXS 9980 User Manual
Weed Eater Lawn Mower 178078 User Manual