High h Batch Service Manual
TM
Accelerating the World of Cooking
800.90TURBO
Part Number: HHB-8707/Revision A/June 2005
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Customer Service at .
Sales & Marketing at .
TM
Accelerating the World of Cooking
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The information contained in this manual is important for the proper installation, use, maintenance,
and repair of this oven. Follow these procedures and instructions to ensure satisfactory baking results and
years of trouble-free service.
Errors – descriptive, typographic, or pictorial – are subject to correction. Specifications are subject to
change without notice.
PLEASE CAREFULLY READ THIS MANUAL AND RETAIN IT FOR FUTURE REFERENCE.
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Table of Contents
Safety Instructions
Important Safety Information – Please Read First
General Safety Information
Reducing Fire Risk
i
i
i
Preventing Oven Damage
Grounding Instructions
Power Cord Replacement
ii
ii
ii
Theory of Operation, Specifications and Installation
Theory of Operation
Certifications
Dimensions
Construction
Electrical Specifications
North America (except Canada)/South America
Canada
Europe/Asia/Pacific
United Kingdom/Ireland
Installation
1
1
1
2
2
2
2
2
2
2
2
3
Lifting and Placing the Oven
Setup
Operating the Oven
Control Display and Key Identification
Oven States and Menu Access
Oven State Descriptions
5
5
5
Menu Descriptions
6
Powering Up
6
Powering Down
6
Cooking Instructions
6
Cooking Options
7
Time Screen Options
7
Done Screen Options
7
Using the Options Menu
Enabling/Disabling the Edit Menu
Erasing the Recipe Menu
Enabling/Disabling the Write Card Function
Enabling/Disabling the Time Screen
Enabling/Disabling the Done Screen
Enabling/Disabling the Demonstration Mode
8
8
9
9
10
10
11
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Programming Recipes
11
12
12
14
14
16
Adjusting the Cook Chamber Temperature
Modifying Recipes
Loading Menu from Smart Card
Saving Menu to Smart Card
Checking Recipe Counter
Diagnosing an Issue
Fault Codes: Descriptions, Clearing Instructions,
and Troubleshooting
17
F1: BLOWER (Blower Running Status Bad)
F2: LOW TEMP (Cook Temperature Low)
F6: EC TEMP (Electrical Compartment Temperature High)
F7: THERMO (Thermocouple Open)
F8: HEAT LOW (Heat Rise Low)
Status Indicators
17
17
20
20
20
23
23
23
23
23
23
24
24
24
25
27
27
27
28
28
29
29
Door
Heater A
Heater B
Blower
Testing Options
Testing the Blower Motor
Viewing/Clearing the Fault Log
Adjusting Temperature Offset
Checking Heaters A and B
Testing the Rack Oscillator
Enabling/Disabling Diagnostic Mode
Viewing Cook Counter/Time
Viewing Cumulative Operating Time
Viewing EC Temperature
Changing Fahrenheit/Celsius Option
Viewing/Entering Serial Number
The Control System
Serviceable Components
Blower Motor Controller
Cooling Fans
31
32
33
34
35
36
37
39
39
39
39
40
Display
Display Keypad
Door Switch
Fuses
I/O Control Board
Power Supply
Relay
Smart Card Reader
Solid State Relay
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Rack Oscillator Motor
40
42
42
43
44
45
46
46
47
Thermocouple – Cook Chamber
Thermocouple – Electrical Compartment
Thermostat – Cooling Fan
Thermostat – Hi-Limit
Voltage Sensor
Troubleshooting
No Keypad Input
No Display – Screen is Blank
The Oven Door
Serviceable Components
Door Gasket
Door Hinge
Door Switch
Troubleshooting
49
50
51
51
52
52
“Cook Door Open” Message when Door is Closed
The Impingement Circuit
Serviceable Components
Blower Motor
53
53
54
55
56
Heater Element
Jetplates (Top and Bottom)
Swing Arm Assembly
The Filtering System
Serviceable Components
Catalytic Converter
Filters
57
57
58
Cleaning the Oven
Daily Maintenance Procedures
Deep Clean Procedures
59
59
High h Batch Schematic
High h Batch Oven Schematic
Schematic Parts
I/O Control Board Test Point Locations
61
63
64
Comprehensive Part Listing
Comprehensive Part Listing
Hardware Descriptions
65
69
Glossary of Terms
Subject Index
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SAFET Y INSTRUCTIONS
i
IMPORTANT SAFET Y INFORMATION – PLEASE READ FIRST
Improper installation, adjustment, alteration, service, or maintenance of this equipment can cause property
damage, injury, or death. Thoroughly read the installation, operating, and maintenance instructions before
installing or servicing this equipment. Strictly adhere to the following safety information to reduce the
risk of:
o
Damage to the oven
o
Damage to property near the oven
o
Personal injury
o
Burns
o
Fire
o
Electric shock
GENERAL SAFET Y INFORMATION
o
Use this appliance only for its intended uses as described in this manual.
o
Only qualified service personnel should service this appliance. Contact the nearest authorized service
facility for examination, repair, or adjustment.
o
Always ensure the oven is disconnected from the power supply before servicing, repairing, or adjusting
any components or parts.
x
o
DO NOT place the cord near heated surfaces.
x
o
DO NOT store or use flammable vapors or liquids (e.g., gasoline) in the vicinity of this appliance.
DO NOT allow children to use this appliance.
DO NOT place corrosive chemicals or vapors in this appliance. It is not designed for industrial or
laboratory use.
x
o
x
o
x
o
DO NOT operate this appliance if it
Has a damaged cord or plug
Is not working properly
Has been damaged or dropped
x
o
DO NOT cover or block any openings on this appliance.
DO NOT store this appliance outdoors.
x
o
x
o
DO NOT use this appliance near water.
x
o
DO NOT immerse this appliance or any of its components (e.g., cord, plug, etc.) in water.
DO NOT let the cord hang over the edge of a table or counter.
x
o
REDUCING FIRE RISK
If materials inside the oven ignite or if smoke is observed,
1. Keep the oven door closed.
2. Turn off the oven.
3. Disconnect the power cord or shut off power at the fuse/circuit breaker panel.
o
Carefully attend the oven if paper, plastic, or other combustible materials are placed inside the oven
to facilitate cooking.
x
o
DO NOT leave items in the Cook Chamber when the oven is not in use.
DO NOT cook items wrapped in cling wrap or plastic film.
DO NOT overcook food.
x
o
x
o
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ii
SAFET Y INSTRUCTIONS
PREVENTING OVEN DAMAGE
o
When servicing this appliance, do not tear insulation to get to components. Rather, find the edge of
the insulation and remove the tape that holds it in place.
o
Operate the oven only when food is in the Cook Chamber.
o
Clean the oven daily.
o
Clean the oven only with TurboChef Oven Cleaner.
x
o
DO NOT clean with a water jet.
x
o
DO NOT slam or mishandle the oven door.
x
o
DO NOT frequently open and close the door to check the cook status of the food.
DO NOT allow cleaning solution or water to remain in the Cook Chamber longer than necessary.
x
o
GROUNDING INSTRUCTIONS
WARNING: Improper grounding increases the risk of electric shock.
This appliance must be grounded. It is equipped with a cord that has a grounding wire and plug that,
in the event of an electrical short circuit, reduce the risk of electric shock by providing an escape wire for
the electric current. The wire must be plugged into an outlet that is properly installed and grounded.
Consult a qualified electrician or serviceman for help understanding
o
Grounding instructions
o
Whether or not the appliance is properly grounded
x
o
DO NOT use an extension cord. If the power supply cord is too short, request a qualified electrician
or serviceman to install an outlet near the appliance.
POWER CORD REPLACEMENT
To avoid potential hazards, only the manufacturer, its service agent, or a similarly qualified person should
replace a damaged power cord.
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Theory of Operation,
Specifications, and Installation
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THEORY OF OPERATION, SPECIFICATIONS AND INSTALL ATION
1
THEORY OF OPERATION
DIMENSIONS
®
The TurboChef High h Batch speed cook oven
Single Units
uses high heat transfer rates developed by force air
impingement to rapidly cook food. The High h
batch utilizes top and bottom Jetplates that have
been optimized for specific food items. The plates
can be easily removed and replaced to facilitate
either higher or lower heat transfer rates. As a result,
Height
Width
Depth
with handle 31.5′′
Weight 157 lbs.
20.5′′
25.5′′
29′′
(521 mm)
(648 mm)
(737 mm)
(800 mm)
(71 kg)
the operator can cook foods that require maximum Double Units (requires Stacking Kit)
browning/caramelizing (high heat transfer), or more
delicate foods that require low heat transfer to
ensure quality is not compromised.
Height
Width
Depth
with handle 31.5′′
Weight
41′′
25.5′′
29′′
(1042 mm)
(648 mm)
(737 mm)
(800 mm)
(42 kg)
The technology is similar to but about twice as fast
as the fastest impingement conveyor oven. The High
h Batch utilizes a variable speed blower, oscillating
rack, and Catalytic Converter to provide maximum
speed, minimal energy input, ventless operation and
the highest food quality.
314 lbs.
Cook Chamber
Height
8′′
18.75′′
16.75′′
(203 mm)
(476 mm)
(425 mm)
Width
Depth
Volume
1.45 cu. ft. (41.1 liters)
CERTIFICATIONS
Wall Clearance
Top
UL, cUL, NSF
2′′
2′′
(51 mm)
(51 mm)
Sides
: High h Batch Dimensions
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2
THEORY OF OPERATION, SPECIFICATIONS AND INSTALL ATION
o
CONSTRUCTION
Exterior
HHBED (P/N: HHB-8601-1D)
Phase
3
Voltage
Frequency
Current
Cord
230 VAC
50/60 Hz
18 amp
HO7RN-F, 4 wire
IEC 309, 4-pin, 32 amp
o
Stainless steel front, top, sides, and back
o
4′′ (102 mm) matte black legs
o
Cool-to-touch coated handle
o
Removable drain pan
Plug
o
Removable cook door for cleaning
United Kingdom/Ireland
Interior
o
HHBUK (P/N: HHB-8601-1K)
o
304 stainless steel interior
Phase
1
o
Drain system helps prevent debris buildup
Voltage
Frequency
Current
Cord
230 VAC
50/60 Hz
24 amp
HO7RN-F, 3 wire
IEC 309, 3-pin, 32 amp
o
Removable Jetplates for deep cleaning
ELECTRICAL SPECIFICATIONS
Plug
North America (except Canada)/South America
o
HHB (P/N: HHB-8601-1)
NOTE: The owner is responsible for supplying
voltage that corresponds to the above specifications.
For help in answering questions about electrical
specifications, consult a qualified electrician.
Phase
1
Voltage*
Frequency
Current
Cord
208/240 VAC
50/60 Hz
24 amp
10 gauge, 3 wire, 6 foot, SOOW
NEMA 6-30P
Plug
INSTALLATION
Install or locate this appliance only in accordance
with the instructions below.
Canada
o
HHBC (P/N: HHB-8601-1C)
Phase
1
Lifting and Placing the Oven
Voltage*
Frequency
Current
Cord
208/240 VAC
50/60 Hz
24 amp
10 gauge, 3 wire, 6 foot, SOOW
NEMA 6-50P
WARNING: Oven weight is approximately
157 lbs. (71 kg). Two or more persons are
required to lift it.
Plug
WARNING: To prevent personal injury or
damage to the oven DO NOT lift the oven
from the front and rear or by the handle.
*Smart Voltage Sensor Technology automatically
senses the supply voltage and configures the oven
to the correct setting (208 or 240). It does not
compensate for lack of or over voltage situations.
WARNING: The operator must ensure that
the oven is properly placed on the table or
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.
Europe/Asia/Pacific
o
HHBEW (P/N: HHB-8601-1W)
Phase
3
Voltage
Frequency
Current
Cord
400 VAC
50/60 Hz
10 amp
HO7RN-F, 5 wire
IEC 309, 5-pin, 16 amp
When lifting and placing the oven:
1. Position one or more persons on left and right
sides of oven.
Plug
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THEORY OF OPERATION, SPECIFICATIONS AND INSTALL ATION
3
2. Lift from bottom of oven.
3. Place oven on surface at least 30′′ (762 mm)
deep and capable of supporting 167 lbs (76 kg).
Setup
Once oven is properly positioned on the counter:
1. Remove packing material and/or foreign objects
from within Cook Chamber.
2. Install Oven Rack by placing it over support pins.
3. Plug in oven to appropriate electrical outlet.
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Operating the Oven
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5
OPERATING THE OVEN
LEFT
RIGHT
LEFT
2
2
RIGHT
1
3
4
5
6
: High h Batch Keypad
This section contains information on:
6. On/Off key
o
Control Display and Key Identification
Powering up
Turns the oven on and off.
o
o
Powering down
OVEN STATES AND MENU ACCESS
o
Cooking Instructions
Cooking Options
(Reference Figure 3, page 6)
o
o
Programming Recipes
Using the Options Menu
Oven State Descriptions
1. Warm-up
o
State during which the oven warms itself to the
predetermined Cook Chamber temperature.
CONTROL DISPLAY AND KEY IDENTIFICATION
Reference Figure 2.
2. Ready to Cook
1. Display
Displays operational information.
The oven is “ready to cook” when it has warmed
up to the preset Cook Chamber temperature. At
this point, the operator can enter cook commands
via the keypad.
2. Soft keys
Six (6) keys used for different functions
depending on what is adjacently displayed.
3. Cool-down
State during which the Blower Motor blows cool
air into the Cook Chamber until the temperature
is below 150ºF (66°C). This takes approximately
90 minutes.
3. Directional keys
Allow user to navigate menus and adjust
incremental settings.
4. Enter key
4. Off
Used to save edited information.
Cooking components are off and Cook
Chamber temperature is below 150ºF (66°C),
but Control System remains operational.
5. Back/Stop key
Press to stop a Cook Cycle or to return to a
previous screen.
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6
OPERATING THE OVEN
NOTE: To expedite the cooling process, open the
Oven Door.
Menu Descriptions
1. Edit Menu
Menu from which operator/technician can
modify Cook Chamber temperature, recipes,
and recipe settings.
WARNING: The oven door is hot.
To prevent possible burns, ensure that the
door is not blocking a throughway or aisle when
opened to expedite cooling process.
2. Options Menu
Menu from which operator can enable/disable
various operative functions.
COOKING INSTRUCTIONS
Recipes have developed and programmed into the
oven, depending on the customer’s request.
3. Recipe Menu (or “Menu”)
Highest superset of recipes, the menu consists of
12 food groups of 6 recipes, or 72 recipes total.
To select a recipe and initiate a Cook Cycle:
1. Press the “ON/OFF” Key to turn the oven on.
The oven will start warming up.
4. Test Mode Menu
Menu from which technician can run
diagnostics and check statistics in test mode.
2. Once the oven reaches its predetermined cook
temperature (typically 500°F (260°C)), it will
display a menu.
POWERING UP
To turn on the oven, press the “ON/OFF” Key.
The oven will begin to warm up to its predefined
cooking temperature (typically 500ºF (260ºC)).
This takes approximately 10 minutes.
3. Carefully place the food item to be cooked in
the Cook Chamber.
WARNING: Inside of oven is HOT and
could result in injury.
When the Warm-up Cycle is completed, the
oven will beep and display “READY TO COOK.”
Within a few seconds, the oven will display food
groups from which to select a food item.
4. To select a food group, press the corresponding
Soft Key (Figure 4)
NOTE: Press the “DOWN” Key to view food
groups 7–12.
POWERING DOWN
To turn off the oven, press the “ON/OFF” Key.
Total cool down time is approximately 90 minutes.
OVEN STATE
ACCESS TO:
Edit Menu
Options Menu Recipe Menu
Test Mode Menu
Warm-up
Ready to Cook
Cool-down
Off
NO
NO
YES
YES
NO
NO
YES
YES
NO
YES
NO
NO
NO
NO
YES
YES
: Oven State/Menu Access Table
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OPERATING THE OVEN
7
LEFT
RIGHT
Press the Soft Key that corresponds to the desired food
group. In this example, pressing the top right Soft Key
would access all Food Items in the “1st Group”.
NOTE: Press the “DOWN” Key to view Food
Groups 7-12.
: Selecting a Food Group
LEFT
RIGHT
Press the Soft Key corresponding to the desired food item.
In this example, pressing the top right Soft Key would initiate
a Cook Cycle for the “First Item”.
: Selecting a Food Item
5. Each of the 12 food groups contains 6 food
items (recipes). Select a recipe by pressing the
corresponding Soft Key (Figure 5).
Done Screen Options (Figure 7, page 8)
If the Done Screen is enabled, when the operator
opens the door at the end of a Cook Cycle he/she
will be given two (2) choices:
NOTE: To immediately terminate a Cook Cycle,
press the “BACK/STOP” Key.
1. Save Time – save an adjusted cook time (if Time
Screen is also enabled).
2. Cook More – cook an item longer after it reaches
the end of its Cook Cycle.
COOKING OPTIONS
Time Screen Options (Figure 6, page 8)
When an item is cooked longer, the oven cooks it
to the specifications of the final event in the initial
Cook Cycle. To learn about events (or phases) of a
recipe, see Modifying Recipes (pages 12-14).
If the Time Screen is enabled, before initiating a
Cook Cycle the operator will be given the option
to adjust the cook time in 5-second increments.
To learn about enabling and disabling the Time
Screen, see page 10.
To learn about enabling and disabling the Done
Screen, see page 10.
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OPERATING THE OVEN
8
ENTER COOK TIME
02:00
LEFT
START
RIGHT
Press the “START” Soft Key (bottom right) Use the “UP” and “DOWN” Keys to adjust
to initiate a Cook Cycle.
time in 5 second increments.
: Time Screen
DONE
LEFT
PLEASE REMOVE
FROM OVEN
SAVE TIME
COOK MORE
RIGHT
Press the “SAVE TIME” Soft Key (bottom left)
to save an adjusted time.
After selecting “Cook More,” adjust additional
time in 5 second increments using the “UP” and
“DOWN” Keys.
Press the “COOK MORE” Soft Key
(bottom right) to cook an item longer.
: Done Screen
USING THE OPTIONS MENU
Enabling/Disabling Edit Menu (Figure 8)
Enabling the Edit Menu allows operators to modify
Cook Chamber temperature, recipes, and recipe
settings. Disabling the Edit Menu prevents operators
from accessing these options.
Use the Options Menu to:
o
Enable/disable the Edit Menu
o
Erase Recipe Menu
o
Enable/disable the Write Card Function
o
Enable/disable the Time Screen
By default, the Edit Menu is enabled unless
otherwise requested by the customer.
o
Enable/disable the Done Screen
Enable/disable Demonstration Mode
o
To enable/disable the Edit Menu:
1. From the Options Menu, press the “EDIT
MENU” Soft Key (top left) to turn the Edit
Menu on or off.
To access the Options Menu:
1. Ensure the oven is in either Cool-down State or
Off State.
2. Simultaneously press and hold top left and top
right Soft Keys for 5 seconds.
2. Press the “BACK/STOP” Key to exit the
Options Menu.
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OPERATING THE OVEN
9
OVEN OPTIONS
TIME SCREEN ON
EDIT MENU ON
ERASE MENU
LEFT
DONE SCREEN ON
DEMONSTRATE OFF
WRITE CARD OFF
RIGHT
Step: 1
Here the “Edit Menu” is turned on.
Step: 2
To access the Options Menu,
simultaneously press and hold for 5 seconds.
: Enabling/Disabling the Edit Menu
OVEN OPTIONS
EDIT MENU ON
ERASE MENU
TIME SCREEN ON
LEFT
DONE SCREEN ON
WRITE CARD OFF
ERASE MENU?
DEMONSTRATE OFF
PRESS “ENTER”
RIGHT
Step: 1
After “Erase Menu” is selected, a
confirmation message appears.
Step: 3
Step: 2
To access the Options Menu,
simultaneously press and hold for 5 seconds.
: Erasing the Menu
Erasing the Recipe Menu (Figure 9)
Erasing the Recipe Menu will permanently delete
currently-stored recipes and recipe settings.
Enabling/Disabling the Write Card Function
(Figure 10, page 9)
Enabling the Write Card function allows
operators to save recipes from the oven to a Smart
Card. Disabling the Write Card function prevents
operators from doing so.
To erase the menu:
1. From the Options Menu, press the “ERASE
MENU” Soft Key (middle left) to erase menu.
By default, the Write Card function is disabled
unless otherwise requested by the customer.
2. Press the “ENTER” Key to confirm or the
“BACK/STOP” Key to cancel.
To enable/disable the Write Card function:
1. From the Options Menu, press the “WRITE
CARD” Soft Key (bottom left) to turn the Write
Card function on or off.
3. Press the “BACK/STOP” Key to exit the
Options Menu.
2. Press the “BACK/STOP” Key to exit the
Options Menu.
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10
OPERATING THE OVEN
OVEN OPTIONS
TIME SCREEN ON
EDIT MENU ON
LEFT
ERASE MENU
DONE SCREEN ON
DEMONSTRATE OFF
WRITE CARD OFF
RIGHT
Step: 1
Here the “Write Card” function
is turned off.
Step: 2
To access the Options Menu,
simultaneously press and hold for 5 seconds.
: Enabling/Disabling the Write Card Function
OVEN OPTIONS
EDIT MENU ON
ERASE MENU
TIME SCREEN ON
DONE SCREEN ON
LEFT
WRITE CARD OFF
DEMONSTRATE OFF
RIGHT
Here the “Time” Screen function
is turned on.
Step: 1
Step: 2
To access the Options Menu,
simultaneously press and hold for 5 seconds.
: Enabling/Disabling the Time Screen
Enabling/Disabling Time Screen (Figure 11)
Enabling/Disabling Done Screen (Figure 12)
Enable the Done Screen to:
Enabling the Time Screen function allows the
operator to adjust the Total Cook Time before
initiating a Cook Cycle. Disabling it prevents the
operator from doing so and helps ensure originally-
programmed cook times remain unaltered.
o
Save an adjusted cook time
o
Cook an item longer after it reaches the end
of its Cook Cycle
Disabling it prevents the operator from doing the
above and helps ensure all originally programmed
cook times remain unaltered.
By default, the Time Screen is enabled unless
otherwise requested by the customer.
By default, the Done Screen is enabled unless
otherwise requested by the customer.
To enable/disable the Time Screen:
1. From the Options Menu, press the “TIME
SCREEN” Soft Key (top right) to turn the Time
Screen function on or off.
To enable/disable the Done Screen:
1. From the Options Menu, press the “DONE
SCREEN” Soft Key (middle right) to turn the
Done Screen function on or off.
2. Press the “BACK/STOP” Key to exit the
Options Menu.
2. Press the “BACK/STOP” Key to exit the
Options Menu.
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OPERATING THE OVEN
11
OVEN OPTIONS
TIME SCREEN ON
EDIT MENU ON
ERASE MENU
LEFT
DONE SCREEN ON
DEMONSTRATE OFF
WRITE CARD OFF
RIGHT
Here the “Done” Screen function
is turned on.
Step: 1
Step: 2
To access the Options Menu,
simultaneously press and hold for 5 seconds.
: Enabling/Disabling the Done Screen
OVEN OPTIONS
EDIT MENU ON
ERASE MENU
TIME SCREEN ON
LEFT
DONE SCREEN ON
DEMONSTRATE OFF
WRITE CARD OFF
RIGHT
Demonstration Mode is turned off.
To access the Options Menu,
Step: 1
Step: 2
simultaneously press and hold for 5 seconds.
: Enabling/Disabling the Demonstration Mode
PROGRAMMING RECIPES
Enabling/Disabling Demonstration Mode (Figure 13)
Enabling Demonstration Mode allows the operator
to view/show every operational aspect of the oven
without the oven actually heating up.
Programming options include:
o
Adjusting the Cook Chamber Temperature
Modifying Recipes
Loading a Menu from a Smart Card
Saving a Menu to a Smart Card
Checking the Recipe Counter
o
o
o
o
By default, the Demonstration Mode is disabled
unless otherwise requested by the customer.
To enable/disable Demonstration Mode:
1. From the Options Menu, press the
To program recipes, the oven must be in either the
Cool-down State or Off State.
“DEMONSTRATE” Soft Key (bottom right) to
turn the Demonstration Mode on or off.
2. Press the “BACK/STOP” Key to exit the
Options Menu.
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OPERATING THE OVEN
12
LEFT
SET TEMP 475ºF
PRESS “ENTER”
RIGHT
Step: 3 & 4
Step: 5
: Adjusting the Cook Chamber Temperature
EDIT GROUP
1ST GROUP
2ND GROUP
4TH GROUP
5TH GROUP
LEFT
3RD GROUP
6TH GROUP
RIGHT
Step: 5
In this example, pressing the top right Soft Key would
access all Food Items in the “1st Group”.
NOTE: Press the “DOWN” Key to view Food
Groups 7-12.
: Modifying Recipes – Step 5
NOTE: Pressing the “ENTER” Key will open the
next menu – modifying recipes. If you do not wish
to modify recipes, simply press the “BACK/STOP”
Key to exit the Options Menu.
Adjusting the Cook Chamber Temperature (Figure 14)
1. Ensure oven is in either the Off State or Cool-
down State.
2. Verify Edit Menu is enabled (for instructions see
page 8).
Modifying Recipes (Figures 15-18)
The Recipe function of the High h Batch speed
oven maximizes cooking efficiency by allowing the
operator to preset cooking specifications for up to
72 items on his/her menu. The High h Batch
stores these menu items into twelve Food Groups,
each containing six Food Items (recipes).
3. Simultaneously press and hold the “UP” and
“DOWN” Keys for 1 second.
4. Adjust Cook Temperature in 25°F (15ºC) incre-
ments by using the “UP” and “DOWN” Keys.
NOTE: To erase all recipes and recipe settings, see
Erasing Recipe Menu, page 9.
5. Press “ENTER” Key to verify selection or press
the “BACK/STOP” Key to cancel.
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OPERATING THE OVEN
13
1ST GROUP
FIRST ITEM
FOURTH ITEM
FIFTH ITEM
LEFT
SECOND ITEM
THIRD ITEM
SIXTH ITEM
RIGHT
Step: 6
In this example, pressing the top right Soft Key will
allow the operator to modify the first food item in the
first food group.
: Modifying Recipes – Step 6
<
1ST GROUP>
EVENT
FIRST ITEM
COOK TIME
RACK ON
00:00
LEFT
1
2
3
4
%
%
TIME
AIR
100
100
0
0
0
100
100
100
RIGHT
TEST
WARMING UP
Step: 6b
Step: 6a
Step: 6c
The field selected
to be modified will warms up in case the operator wishes
be bracketed. to test a new/modified recipe.
Throughout this process, the oven
: Navigating the Food Item Menu
To modify a food item:
6. Select Food Item to be modified (Figure 16).
1. Ensure oven is in either the Off State or Cool-
down State.
NOTE: To learn how to navigate the Food Item
Menu (Figure 17), review the following:
a. To navigate characters (numbers and letters
within a field), use the top left and top right
Soft Keys.
2. Verify Edit Menu is enabled (for instructions,
see page 8).
3. Simultaneously press and hold the “UP” and
“DOWN” Keys for 1 second.
b. To change characters, use the “UP” and
“DOWN” Keys. Press and hold these keys to
rapidly scroll through characters.
4. Adjust the cook temperature in 25°F (15°C)
increments by using “UP” and “DOWN” Keys.
To verify selection (or to proceed without changing NOTE: Pressing the “UP” and “DOWN” Keys will
the cook temperature), press the “ENTER” Key.
clear the field of its current content UNLESS you
first press either the top left or top right Soft Key.
5. Select the Food Group that contains the item to
be modified (Figure 15).
c. Use the “LEFT” and “RIGHT” Keys to navigate
fields.
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OPERATING THE OVEN
14
<
1ST GROUP>
FIRST ITEM
COOK TIME
RACK ON
00:00
LEFT
EVENT
1
2
3
4
%
%
TIME
AIR
100
100
0
0
0
100
100
100
RIGHT
TEST
WARMING UP
Step: 8 Step: 7a
Step: 7d
Step: 7b
Step: 7e
Step: 10
Step: 7c
Step: 9
: Modifying Recipes – Steps 7-10
7. From “Food Item” Screen (Figure 18, page 14),
the operator can:
Loading Menu from Smart Card (Figures 19 and 20)
CAUTION: Loading a menu from a Smart
Card will overwrite all existing recipes
programmed into the oven.
a. Enter/change food group name.
b. Enter/change food item name.
To load a menu from a Smart Card:
1. Ensure oven is in either the Off State or Cool-
down State.
c. Set cook time by using the “UP” and
“DOWN” Keys (5-second increments).
d. Choose whether to turn rack on or off by
using the “UP” and “DOWN” Keys.
2. Insert Smart Card into Smart Card Reader.
Orient card as shown in Figure 19.
e. Specify Events, which allow each food item to
cook in different phases at different air levels.
3. Press bottom left Soft Key.
o
Enter percentage of cook time per event
4. Press middle left Soft Key to LOAD MENU
FROM CARD (Figure 20).
(total must equal 100%).
Enter percentage of air per event
o
(10% increments).
5. Press the “ENTER” Key to confirm or the
“BACK/STOP” Key to cancel. After approxi-
mately 5 seconds, screen will display that menu
has loaded from card (Figure 20).
8. To test settings before saving, press bottom left
Soft Key. Oven will initiate a Cook Cycle to the
specifications of new settings.
Saving Menu to Smart Card (Figures 19 and 21)
9. To save settings, press “ENTER” Key until SET-
TINGS SAVED is displayed (can be up to three
(3) times before SETTINGS SAVED displays).
CAUTION: Saving a menu to a Smart
Card will overwrite all existing recipes
programmed into the Smart Card.
10. Press the “BACK/STOP” Key 3 times to exit
the menu (doing so before saving settings will
erase changes).
To save a menu to a Smart Card:
1. Ensure oven is in either the Off State or Cool-
down State.
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OPERATING THE OVEN
15
Smart Card Reader Slot
Smart Card - Notice orientation of chip
: Inserting Smart Card into Reader
LOADING . . . DONE
FROM CARD
LOADING . . .
FROM CARD
Step: 3
Step: 4
: Loading from Smart Card
SAVING . . .DONE
TO CARD
SAVING . . .
TO CARD
Step: 4
Step: 5
: Saving to Smart Card
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OPERATING THE OVEN
16
1ST GROUP
FIRST ITEM
0
1
SECOND ITEM
THIRD ITEM
FOURTH ITEM
FIFTH ITEM
LEFT
0
0
0
0
SIXTH ITEM
RIGHT
ZERO COUTNERS?
PRESS “ENTER”
Step: 2
Step: 3
Step: 1
At any point, the operator can zero out the
counters for a given group.
In this example, the second item (recipe) in the first group has completed one cook cycle.
: Checking the Recipe Counter
2. Verify Write Card function is enabled (for
instructions, see page 9).
Checking Recipe Counter (Figure 22)
To view how many times each recipe (Food Item)
has been used:
3. Insert Smart Card into Smart Card Reader
Orient card as shown in Figure 19.
1. Simultaneously press and hold middle left and
middle right Soft Keys for 3 seconds.
4. Press the bottom left Soft Key.
2. Screen will display food items in first food
group. To view other food groups, use the “UP”
and “DOWN” Key.
5. Press middle left Soft Key to SAVE MENU TO
CARD (Figure 20).
3. After viewing desired Food Items, press the
“BACK/STOP” Key to exit the menu.
6. Press the “ENTER” Key to confirm or the
“BACK/STOP” Key to cancel. After approxi-
mately 5 seconds, screen will display that menu
has saved to the card (Figure 21, page 15).
NOTE: To erase counters, press the “ENTER” Key
when viewing the totals.
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Diagnosing an Issue
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DIAGNOSING AN ISSUE
17
and/or reverting to the Off State. The oven will
automatically attempt to restart every 2 seconds
until the fault is cleared.
To help in troubleshooting, this section contains
information on
o
Fault Codes: Descriptions, Clearing Instructions,
and Troubleshooting
Control Display and Key Identification
To clear this fault:
o
1. Turn the oven on. The Control System may be
able to successfully restart the Blower Motor.
o
Oven States and Menu Access
Status Indicators
o
o
Testing Options
2. Test the Blower Motor from the Test Mode
Menu (for instructions, see page 24).
FAULT CODES: DESCRIPTIONS, CLEARING
INSTRUCTIONS, AND TROUBLESHOOTING
Troubleshooting this fault:
To troubleshoot an F1 Fault, see the diagram
on page 18.
The High h Batch oven continually monitors and
logs fault conditions. For instructions on viewing
the Fault Log, see page 24.
F2: LOW TMP (Cook Temperature Low)
This fault will display if the Cook Chamber
temperature is more than 84°F (47ºC) below the
set temperature after 5 seconds into a Cook Cycle.
The Fault Log
o
Logs each fault up to 255 instances before
rolling back to zero.
o
Increments when a fault is detected, but does
To clear this fault:
not decrement when the fault is cleared (whether
through service or some other action).
Try cooking again. If the Cook Chamber
temperature is within 84°F (47ºC) of the set
temperature, the fault will clear.
Reference Figure 23 (below) to determine when
(i.e., which oven state) a fault can occur.
Troubleshooting: F2 Fault
To troubleshoot an F2 Fault, see the diagram
on page 19.
F1: BLOWER (Blower Running Status Bad)
This fault will display when the Blower Motor
Controller indicates no running status. The oven
responds to this fault by terminating a Cook Cycle
FAULT CODE AND
DESCRIPTION
WHEN ACTIVE
Warm-up Ready to Cook
REFER TO
Cool Down Off State
F1: Blower Running Status Bad*
F2: Cook Temperature Low*
F6: EC Temperature High
F7: Thermocouple Open
F8: Heat Low
x
x
x
x
x
x
x
x
x
x
x
Page 17
Page 17
Page 20
Page 20
Page 20
x
x
x
x
*Will terminate a Cook Cycle upon discovery.
: Fault Code Description Table
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18
DIAGNOSING AN ISSUE
Troubleshooting:
F1: BLOWER (Blower Running Status Bad)
Is Status Indicator A backlit
NO
YES
on the “Test” Screen?
(see page 23)
Is the wiring
harness properly
connected?
YES
Is the Blower Motor
spinning freely?
NO
Replace Blower
Motor (page 53) or
remove obstruction.
Check the Motor
Controller, Blower
Motor, and I/O
YES
Control Board.
(See page 61 for
schematic.)
Do resistance measurements
between windings and chassis
agree with values on Motor
Windings Resistance Table?
(Figure 24, below)
NO
Correct the wiring
or replace I/O Control
Board (page 39)/Motor
Controller (page 32)
if damaged.
YES
NO
Replace Blower
Motor. (page 53)
Replace
Motor Controller.
(page 32)
TO
FROM
Red
DESCRIPTION
EXPECTED RESISTANCE
Black
Winding (A-B)
Winding (A-C)
Winding (B-C)
Windings to Chassis
2.0-2.6 Ohms
2.0-2.6 Ohms
2.0-2.6 Ohms
Open
Black
White
White
Green
Red
Black, Red or White
: Motor Windings Resistance Table
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DIAGNOSING AN ISSUE
19
Troubleshooting:
F2: LOW TMP (Cook Temperature Low)
Does the Display read “Cook Door
Open” when the door is closed?
YES
NO
Is wiring from the
Door Switch to the I/O
Control Board OK?
(See page 61 for
Correct wiring.
NO
schematic.)
YES
Replace Door Switch.
(page 36)
Is the Hi-Limit
Thermostat tripped?
YES
Reset and determine
why it tripped – excess
grease buildup, etc.
(Figure 25, page 20)
If problem
persists, replace the
I/O Control Board.
(page 39)
NO
Is the Heater Element
defective?
Is the SSR defective?
NO
YES
NO
YES
Replace SSR.
(page 40)
Is wiring from
SSR to I/O Control
Board OK?
(See page 61 for
schematic.)
Ensure jam nut is
adequately tightened
and flange nut
(behind jam nut) is
not over-tightened.
YES
NO
If the problem
persists, replace the
defective heater.
(page 54)
Replace I/O Control
Board. (page 39)
Correct wiring.
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20
DIAGNOSING AN ISSUE
: Location of Hi-Limit Thermostat Reset Button
To clear this fault:
The Control System must detect continuity on
the thermocouple circuit.
F6: EC TEMP (Electrical Compartment (EC)
Temperature High)
This fault displays if the Electrical Compartment
(EC) temperature exceeds 158°F (70°C). The
Control System checks the EC Thermocouple
once per minute.
Troubleshooting: F7 Fault
To troubleshoot an F7 Fault, see the diagram
on page 21.
NOTE: This fault will not terminate a Cook Cycle.
F8: HEAT LOW
This fault will display if during warm-up the
Cook Chamber temperature fails to rise at least
35°F (approximately 18ºC) every five minutes.
To clear this fault:
The EC temperature must recede below
158°F (70°C).
NOTE: This fault will not log; rather it will
display an Error Message during warm-up.
Troubleshooting: F6 Fault
To troubleshoot an F6 Fault, see the diagram
on page 21.
Troubleshooting: F8 Fault
To troubleshoot an F8 Fault, see the diagram
on page 22.
F7: THERMO (Thermocouple Open)
This fault will display if the Control System
detects that the CC Thermocouple is “Open,”
or 999°F/C.
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DIAGNOSING AN ISSUE
21
Troubleshooting:
F6: EC TEMP (Electrical Compartment (EC) Temperature High)
Is the oven in an area of moderate
temperature (120ºF (49ºC) or cooler)?
YES
NO
Does the oven have
room to ventilate?
(not tightly enclosed
by other appliances
or fixtures?)
Relocate oven to
cooler area.
Move oven to open area
or remove items that are
in close proximity.
NO
Is Wiring Harness properly
connected? Check Cooling
Fan Thermostat, I/O Control
Board, and Fans. (See page 61
for schematic.)
YES
Are both Cooling
Fans rotating?
NO
NO
YES
YES
Check for
Replace defective
component – either Cooling
Fan Thermostat (page 43),
I/O Control Board (page 39),
or Fan (page 33).
Correct wiring.
obstructions in
the airflow and
remove them.
Troubleshooting:
F7: THERMO (Thermocouple Open)
Is the open Thermocouple properly
connected to the I/O Control Board?
(See page 61 for schematic.)
Is the CC
Thermocouple an
open circuit?
Correct connection.
YES
NO
Using the Ohm
Meter, measure at
40-pin connector.
CC Thermocouple
should measure
YES
Replace the defective Thermocouple.
(page 42)
Replace I/O Control Board.
(page 39)
NO
approx. 4-5 Ohms.
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22
DIAGNOSING AN ISSUE
Troubleshooting:
F8: HEAT LOW
YES
NO
Is the Blower Motor blowing air?
NO
Is the Hi-Limit
Thermostat tripped?
Is the Heater
Element defective?
See page 17
to troubleshoot
F1: BLOWER
(Blower Running
Status Bad)
YES
YES
NO
Is the Solid State Relay
defective?
Reset and
determine why it
tripped – excess
Replace defective
heater. (page 54)
grease buildup, etc.
(Figure 25, page 20)
Verify Solid State
Relay is not shorted
across output.
NO
YES
Replace SSR.
(page 40)
Is wiring from SSR to
I/O Control Board OK?
(See page 61 for
schematic.)
NO
YES
Replace I/O Control
Board. (page 39)
Correct wiring.
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DIAGNOSING AN ISSUE
23
LEFT
RIGHT
: Test Mode Menu, Screen 1 of 2
STATUS INDICATORS
TESTING OPTIONS
Displayed in Test and Diagnostic Modes, Status
Indicators help in troubleshooting. The following
oven parts are represented by letters at the bottom
of the display (Figure 26).
From the Test Mode Menu (Figure 26), a service
technician can test/reference the following oven
components:
o
Blower Motor
o
Fault Log
o
Door (represented by “D”)
Backlit = OPEN
Temperature Offset
Heaters A & B
o
o
Not backlit = CLOSED
Rack Oscillator
o
Diagnostic Mode
o
Heater A (represented by left “H”)
Backlit = OFF
Cook Counter/Time
Cumulative Operating Time
o
o
Not backlit = ON
Electrical Compartment Temperature
o
Fahrenheit/Celsius Options
o
Heater B (represented by right “H”)
Backlit = OFF
Serial Number
Not Backlit = ON
To access the Test Mode Menu:
1. Ensure the oven is in the Off or Cool-down
State.
Blower (represented by “A” for “air”)
Backlit = OFF
Not Backlit = ON
2. Simultaneously press and hold the “Down” and
“Right” Keys for 1 second.
NOTE: In Figure 26, the door is open (the “D”
is backlit), Heater A and B are on (neither “H” is
backlit) and the Blower is off (the “A” is backlit).
NOTE: The Test Mode Menu contains two
screens. Use the “UP” and “DOWN” Keys to toggle
from screen to screen.
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DIAGNOSING AN ISSUE
24
LEFT
RIGHT
Step: 1/2 Airflow increases 10%
Status Indicator “A”
Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
each time the “BLOWER” should not be backlit.
Soft Key is pressed.
: Testing the Blower Motor
LEFT
RIGHT
Step: 1
In this example, test shows the oven has Simultaneously press and hold for 1
Step: 2
Step: 3
logged one (1) F1 Fault.
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
: Viewing the Fault Log
Testing the Blower Motor (Figure 27)
Adjusting the Temperature Offset (Figure 29)
1. From Screen 1 of the Test Mode Menu, press
the “BLOWER” Soft Key (top left).
The Temperature Offset is a feature that ensures
accurate temperature readings where the food actually
cooks, as opposed to where the thermocouple is.
2. Continue pressing the “BLOWER” Soft Key (top
left) to raise blower speed in 10% increments.
The value entered for temperature offset will
deduct from the oven’s temperature reading. For
3. When finished, press the “BACK/STOP” Key to example, if the oven temperature = 500ºF, and the
end the test and exit the Test Mode Menu.
temperature offset is 20ºF, the oven will display
480ºF.
Viewing/Clearing the Fault Log (Figure 28)
1. From Screen 1 of the Test Mode Menu, press
the “FAULTS” Soft Key (middle left).
To adjust the Temperature Offset:
1. From Screen 1 of the Test Mode Menu, press
the “OFFSET” Soft Key (bottom left).
2. To zero-out the Fault Log, press the “Enter” key.
2. Continue pressing the “OFFSET” Soft Key to
adjust the Temperature Offset in 5°F increments.
3. When finished, press the “BACK/STOP” Key to
exit the Test Mode Menu.
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DIAGNOSING AN ISSUE
25
LEFT
RIGHT
Step: 1/2
In this example, the Temperature Offset is
set at 20ºF (approximately 11ºC).
Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
: Adjusting the Temperature Offset
LEFT
RIGHT
In this example, Heater A is on.
Step: 1/2
Simultaneously press and hold for 1 Step: 3
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
: Checking Heater A
NOTE: Adjustments can be made only in
To turn on Heater A: (Figure 30)
Fahrenheit. (5ºF equals approximately 2.8ºC.)
1. From Screen 1 of the Test Mode Menu, press
the “HEATER A” Soft Key (top right).
NOTE: At 20°F, pressing the “OFFSET” Soft Key
rolls the Temperature Offset back to 0°F.
2. When finished testing, press the “HEATER A”
Soft Key (top right) to turn Heater A off.
3. Press “ENTER” to confirm.
3. Press the “BACK/STOP” Key to end the test
and exit the Test Mode Menu.
4. When finished, press the “BACK/STOP” Key to
exit the Test Mode Menu.
To turn on Heater B: (Figure 31, page 26)
1. From Screen 1 of the Test Mode Menu, press
the “HEATER B” Soft Key (middle right).
Checking Heaters A and B (Figures 30-31)
NOTE: If the Blower Speed is “0”, the Blower will
automatically set to idle airflow at the initiation of
this test.
2. When finished testing, press the “HEATER B”
Soft Key (middle right) to turn Heater B off.
3. Press the “BACK/STOP” Key to end the test
and exit the Test Mode Menu.
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DIAGNOSING AN ISSUE
26
LEFT
RIGHT
In this example, Heater B is on.
Step: 1/2
Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
: Checking Heater B
LEFT
RIGHT
In this example, the Rack Oscillator is on.
Step: 1/2
Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
: Testing the Rack Oscillator
LEFT
RIGHT
Step: 2
In this example, the Diagnostic Mode is
Step: 1 Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
enabled. If it were disabled, the screen
would read “Normal Display” rather
then “Diag Display”.
: Enabling/Disabling the Diagnostic Mode
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DIAGNOSING AN ISSUE
27
LEFT
RIGHT
Step: 2/3
In this example, the oven has completed 10 Cook
Cycles. Press the “COOKS” Soft Key again to
view the cumulative cook time.
Step: 1 Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 4
: Viewing the Cook Counter/Cumulative Cook Time
3. When finished, press the “BACK/STOP” Key to
exit the Test Mode Menu.
Testing the Rack Oscillator (Figure 32)
NOTE: The Oven Rack will not oscillate if it is
not properly set on the support pins.
Viewing Cook Counter/Time (Figure 34)
The High h Batch oven logs how many Cook
Cycles have completed, as well as the cumulative
cook time.
To test the Rack Oscillator:
1. From Screen 1 of the Test Mode Menu, press
the “RACK OSC” Soft Key (bottom right).
To view how many Cook Cycles have completed
and the cumulative cook time:
1. From Screen 1 of the Test Mode Menu, press
the “DOWN” Key to toggle to Screen 2 of the
Test Mode Menu.
2. When finished testing, press the “RACK OSC”
Soft Key (bottom right) again to turn the rack
oscillator off.
3. Press the “BACK/STOP” Key to end the test
and exit the Test Mode Menu.
2. Press the “COOKS” Soft Key (middle left) to view
total number of Cook Cycles completed.
Enabling/Disabling the Diagnostic Mode (Figure 33)
Enable Diagnostic Mode to
o
3. To view the cumulative cook time, press the
“COOKS” Soft Key (middle left) again.
View Cook Cycle parameters when cooking.
View Status Indicators (page 23) during a
Cook Cycle.
o
4. When finished, press the “BACK/STOP” Key
to exit the Test Mode Menu.
To enable/disable the Diagnostic Mode:
1. From Screen 1 of the Test Mode Menu, press
the “DOWN” Key to toggle to Screen 2 of the
Test Mode Menu.
NOTE: To permanently erase the Cook Cycle
totals, press the “ENTER” Key when viewing the
total number of completed Cook Cycles.
2. Press “DIAG” Soft Key (top left) to turn the
Diagnostic Mode on or off.
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DIAGNOSING AN ISSUE
28
LEFT
RIGHT
Step: 2
Step: 1 Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
In this example, the oven has been on for
15 hours and 30 minutes.
: Viewing the Cumulative Operating Time
LEFT
RIGHT
Step: 1 Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
Step: 2
In this example, the EC
Temperature is 110ºF (43ºC)
: Viewing the Electrical Compartment (EC) Temperature
NOTE: To permanently erase the Cumulative
Operating time, press the “ENTER” Key when
viewing the total.
Viewing the Cumulative Operating Time (Figure 35)
The High h Batch oven logs the total amount of
time the oven has been on.
Viewing the Electrical Compartment (EC) Temperature
(Figure 36)
1. From Screen 1 of the Test Mode Menu, press
the “DOWN” Key to toggle to Screen 2 of the
Test Mode Menu.
To view this statistic:
1. From Screen 1 of the Test Mode Menu, press
the “DOWN” Key to toggle to Screen 2 of the
Test Mode Menu.
2. Press the “ACCUM” Soft Key (bottom left) to
view cumulative operating time.
2. Press the “ºELEC” Soft Key (top right) to view
the EC Temperature.
3. When finished, press the “BACK/STOP” Key to
exit the Test Mode Menu.
3. When finished, press the “BACK/STOP” Key to
exit the Test Mode Menu.
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DIAGNOSING AN ISSUE
29
LEFT
RIGHT
In this example, the temperature is
being measured in Fahrenheit.
Step: 2 Step: 1 Simultaneously press and hold for 1
second to get to the Test Mode Menu
(Screen 1). NOTE: Oven must be in
the Off or Cool-down State.
Step: 3
: Changing the Fahrenheit/Celsius Option
LEFT
RIGHT
Serial Number will be displayed.
Step: 2 Step: 3/4 Step: 1
Step: 5
Step: 6
Simultaneously press and hold for 1 second to get to the Test Mode
Menu (Screen 1). NOTE: Oven must be in the Off or Cool-down State.
: Viewing/Entering the Serial Number
3. To change the Serial Number or enter it for the
first time, press either the “UP” or “DOWN”
Key. An editable Serial Number will display
above the current one.
Changing the Fahrenheit/Celsius Option (Figure 37)
1. From Screen 1 of the Test Mode Menu, press
the “DOWN” Key to toggle to Screen 2 of the
Test Mode Menu.
4. Edit each character using the “UP” and “DOWN”
Key. The cursor will move to the next character
if you wait 2 seconds.
2. Press the “ºF/ºC” Soft Key (middle right) to
change the type of temperature measurement.
3. When finished, press the “BACK/STOP” Key to
exit the Test Mode Menu.
5. Press the “ENTER” Key to confirm or the
“BACK/STOP” Key to cancel.
Viewing/Entering the Serial Number (Figure 38)
1. From Screen 1 of the Test Mode Menu, press
the “DOWN” Key to toggle to Screen 2 of the
Test Mode Menu.
6. When finished, press the “BACK/STOP” Key to
exit the Test Mode Menu.
2. Press the “S/N” Soft Key (bottom right) to view
the Serial Number.
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The Control System
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THE CONTROL SYSTEM
31
SERVICEABLE COMPONENTS
The Control System signals, senses, commands, and
actuates the oven’s other components. For a
schematic that includes all Control System compo-
nents, see Figure 61, page 61. For more compre-
hensive hardware descriptions, see page 69.
The following components of the Control System
may at some point need to be replaced:
o
Blower Motor Controller
o
Cooling Fans – Inlet and Exhaust
This section contains:
o
Display
Display Keypad
Door Switch
Fuses
o
Serviceable Component Information and
o
Replacement Instructions
o
o
Parts and Part Numbers
o
o
Troubleshooting
o
I/O Control Board
o
Power Supply
o
Rack Oscillator Motor
o
Relay
o
Smart Card Reader
o
Solid State Relay
o
Thermocouple – CC
o
Thermocouple – EC
o
Thermostat – Cooling Fan
o
Thermostat – Hi-Limit
o
Voltage Sensor
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32
THE CONTROL SYSTEM
3. Disconnect Wiring Harness from the defective
Blower Motor Controller.
Blower Motor Controller (Figure 39)
The proprietary Brushless DC Blower Motor
Controller actuates the Blower Motor.
4. Replace the defective Blower Motor Controller
with P/N 100443.
To replace a defective Blower Motor Controller:
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion)
and unplug the oven.
5. Reconnect Wiring Harness and reattach the
Blower Motor Controller cover.
2. Remove Blower Motor Controller Bracket. The
Motor Controller is attached to the bracket on
the reverse side.
1
2
3
4
NUMBER
PART
PART NUMBER
100443
1
2
3
4
Blower Motor Controller
Screw – Blower Motor Controller (x4)
Bracket – Blower Motor Controller
101688
HHB-8111
Screw – Blower Motor Controller Bracket (x4)
101688
: Removing Blower Motor Controller
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THE CONTROL SYSTEM
33
4. Remove finger guard.
Cooling Fans (Figure 40)
Located on the back of the oven, the Cooling Fans
ventilate air into the Electrical Compartment (via the
inlet fan), then back out (via the exhaust fan).
NOTE: The screws that hold finger guards in place
also hold fans in place.
5. Disconnect Wiring Harness from fan.
To replace a defective fan:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
6. Install new fan (P/N 100516) and reconnect
Wiring Harness.
7. Reinstall finger guard(s)/covering.
8. Reattach side panel(s).
2. Remove side panel nearest to defective fan.
3. If removing exhaust fan, remove covering.
5
9
6
8
7
NUMBER
PART
PART NUMBER
100516
5
6
7
8
9
Cooling Fans – Inlet/Exhaust
Cooling Fan Finger Guard
Screw – Cooling Fan Assy (4 x 2 fans = 8)
Cover – Cooling Fan (Exhaust)
Screw – Cooling Fan Cover (x3)
100087
101694
HHB-8079
101688
: Replacing Cooling Fans
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34
THE CONTROL SYSTEM
4. If ribbon cable is damaged, replace with P/N
103024 (not pictured) and jump to step 10.
Display (Figure 41)
To replace a defective Display:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
5. If Display is defective, remove from Display
Panel.
6. Remove Display Brackets from Display.
7. Replace Display with P/N 100505.
2. Remove both side panels.
3. Remove Display Panel.
10
11
12
13
14
15
18
17
16
NUMBER
10
PART
PART NUMBER
100505
Display
11
Screw – Display (x4)
Bracket – Display (x2)
Nut – Display (x2)
Panel – Display
101520
12
HHB-8130
102963
13
14
HHB-8025
HHB-8023-2
101688
15
Panel – Left Side
16
Screw – Side Panel (x8 per side)
Panel – Right Side
Screw – Front Side Panel (x2 per side)
17
HHB-8024-2
101663
18
: Replacing the Display
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THE CONTROL SYSTEM
35
8. Attach Display Brackets to the new Display.
9. Attach new Display to Display Panel.
4. Gently peel keypad from Display Panel. If any
adhesive residue remains on the Display Panel,
clean with MEK.
10. Reinstall Display Panel and reattach side panels. 5. Route the new keypad cable through correct
openings (Figure 42).
Display Keypad (Figure 42)
The keypad is connected to I/O Control Board via
14 Pin Flat Cable.
CAUTION: The keypad cable is delicate.
If necessary, remove the Display Panel for
easier access when routing the cable to avoid
damaging it.
To replace a defective keypad:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
6. Peel paper strip from the back of the new keypad
(P/N HHB-8064).
2. Remove Right Side Panel.
7. Starting from one corner, carefully place new
keypad on the Display Panel.
3. Disconnect keypad cable at I/O Control Board.
(See page 61 for schematic.)
8. Connect keypad cable to the I/O Control Board.
9. Reattach Right Side Panel.
19
NUMBER
PART
PART NUMBER
19
Display Keypad
HHB-8064
: Replacing the Display Keypad
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36
THE CONTROL SYSTEM
3. At the I/O Control Board, disconnect Wiring
Harness that routes to Door Switch. (See page
61 for schematic.)
Door Switch (Figure 43)
The Door Switch is a sensor that detects the Door
Actuator and determines whether the door is open
or closed.
4. Replace defective switch with P/N 102788.
To replace a defective Door Switch:
NOTE: Retain mounting bracket for use with
new switch.
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
5. Reconnect wiring to I/O Control Board.
6. Reattach Display Panel and side panels.
2. Remove both side panels and Display Panel.
20
21
22
23
NOTE: Some oven components have been removed for clarity.
NUMBER
20
PART
PART NUMBER
101421
Screw – Door Switch/Actuator (x2)
Nut – Display Panel (x2)
Door Switch/Actuator Mounting Bracket
Door Switch
21
100903
22
HHB-8086
102788
23
: Replacing the Door Switch
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THE CONTROL SYSTEM
37
2. Remove the Fuse Cover.
Fuses (Figure 44)
The Aux Fuses protect the Control System and
Blower Motor.
3. Rotate fuse cap 90° counterclockwise to access
the fuse.
CAUTION: Replace fuses with only class
CC fuses of the same rating.
4. Disconnect Wiring Harness from fuse.
5. Replace the defective fuse with P/N 100592.
6. Reattach Wiring Harness.
To replace a fuse:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
7. Reinstall Fuse Holder and Fuse Cover.
24
25
26
27
NUMBER
24
PART
PART NUMBER
101688
Screw – Fuse Cover
Fuse Cover
25
HHB-8136
100592
26
Fuse – Class CC, 12 Amp (x2)
Fuse Holder (x2)
27
100586
: Removing Fuses
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38
THE CONTROL SYSTEM
28
29
30
40
39
31
37
32
38
36
33
35
34
NUMBER
28
PART
PART NUMBER
102910
101951
NGC-1008
101286
101688
101947
102911
100506
103023
101273
101687
101206
102911
Screw – I/O Control Board (x4)
29
Standoff – I/O Control Board (x4)
I/O Control Board
30
31
Solid State Relay
32
Screw – Solid State Relay (x2)
Standoff – Smart Card Reader (x4)
Screw – Smart Card Reader (x4)
Smart Card Reader
33
34
35
36
Cable – Smart Card Reader
Relay
37
38
Screw – Relay (x2)
39
Power Supply
40
Screw – Power Supply (x3)
: Component Plate Assembly
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THE CONTROL SYSTEM
39
Refer to the Component Plate Assembly
(Figure 45) when replacing
4. Replace defective Power Supply with P/N 101206.
5. Reconnect Wiring Harness.
o
I/O Control Board
o
Power Supply
o
Relay
6. Reattach Right Side Panel.
o
Smart Card Reader
o
Solid State Relay
Relay (Figure 45)
240 VAC, 30 Amp, Double Pole, Double Throw,
24 VDC Relay Coil. Actuates Rack Oscillator Motor.
I/O Control Board (Figure 45)
The I/O Control Board controls all aspects of oven
operation.
To replace a defective relay:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
To replace a defective I/O Control Board:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
2. Remove Right Side Panel.
2. Record the Serial Number (see page 29 for
viewing instructions).
3. Disconnect Wiring Harness from defective relay.
4. Replace defective relay with P/N 101273.
5. Reconnect Wiring Harness.
3. Remove Right Side Panel.
4. Disconnect wiring from I/O Control Board.
6. Reattach Right Side Panel.
5. Replace defective I/O Control Board with
P/N NGC-1008.
Smart Card Reader (Figure 45)
Loads Recipe Menus from and writes Recipe
6. Reconnect wiring and reattach Right Side Panel. Menus to the Smart Card.
7. Re-enter the Serial Number (see page 29).
To replace a defective Smart Card Reader:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
Power Supply (Figure 45)
24 VDC Output at 40 Watts. Supplies control
voltage for I/O Control Board, Relay, and Solid
State Relay (SSR).
2. Remove Right Side Panel.
To replace a defective Power Supply:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
3. Check if connection cable is damaged. If so,
replace with P/N 103023 (not pictured) and
jump to step 5.
4. If Smart Card Reader is defective, replace with
P/N 100506.
2. Remove Right Side Panel.
3. Disconnect Wiring Harness from the defective
Power Supply.
5. Reattach Right Side Panel.
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40
THE CONTROL SYSTEM
2. Remove Blower Motor Controller Bracket (see
page 32 for instructions). This will allow access
to Rack Oscillator Motor.
Solid State Relay (SSR) (Figure 45, Page 38)
The 240 VAC, Dual 40 Amp Solid State Relay
actuates the Heater Element. When the SSR is
actuated, the (-) control input will go to 0.00
VDC. When not actuated, the control input will
read -24.00 VDC.
3. Remove washer and retaining ring from crank.
Retain them for use with new motor.
4. Remove the Rack Oscillator Motor from the
Drag Link (not pictured).
To replace a defective SSR:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
5. Remove the Rack Oscillator Motor Bracket
(with motor attached) from oven.
2. Remove Right Side Panel.
6. Remove Rack Oscillator Motor from Bracket.
3. Disconnect Wiring Harness from defective SSR.
4. Replace defective SSR with P/N 101286.
5. Reconnect Wiring Harness.
7. Remove the crank from the motor shaft (attached
via 3/16-inch screw, P/N 101714, not pictured.)
8. Disconnect the Wiring Harness from Rack
Oscillator Motor.
6. Reattach Right Side Panel.
9. Install new motor (P/N HHB-8135) and
reconnect Wiring Harness.
Rack Oscillator Motor (Figure 46)
The Rack Oscillator Motor actuates the Swing
Arm Assembly, which causes the rack to oscillate.
10. Reinstall crank and bracket.
11. Reattach Rack Oscillator Motor to drag link.
12. Fasten washer and retaining ring.
To replace a defective Rack Oscillator Motor:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
13. Reinstall Blower Motor Controller Bracket.
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THE CONTROL SYSTEM
41
43
44
42
41
45
46
47
NUMBER
41
PART
PART NUMBER
HHB-8135
HHB-8045
101672
Rack Oscillator Motor
42
Crank – Rack Oscillator Motor
Screw – Rack Oscillator Motor (x2)
Washer – Rack Oscillator Motor
43
44
102451
45
Retaining Ring – Rack Oscillator Motor
Bracket – Rack Oscillator Motor
101297
46
HHB-8049
101688
47
Screw – Rack Oscillator Motor Bracket (x2)
: Removing the Rack Oscillator Motor
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42
THE CONTROL SYSTEM
Thermocouple – Cook Chamber (Figure 47)
Thermocouple – Electrical Compartment (EC)
Type K Thermocouple. Thermocouple measures
the temperature of the recirculating impingement
airflow. If the display indicates 999ºF/C, the
Thermocouple is “open,” resulting in an F7 Fault.
This Type K Thermocouple measures the temperature
of the Electrical Compartment. If the temperature
within the Electrical Compartment is above 158ºF
(70°C), the control will display an F6 Fault.
To replace a defective CC Thermocouple:
To replace a defective EC Thermocouple:
1. Ensure “Cool Down” process is completed (“Cool 1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
Down” message will disappear upon completion)
and unplug the oven.
2. Remove Right Side Panel.
2. Remove Right Side Panel.
3. Pull back insulation where necessary.
3. Disconnect defective thermocouple from the
I/O Control Board and install new one (P/N
700-1199). See page 61 for schematic.
4. Replace defective thermocouple with P/N
NGC-1140.
4. Reattach Right Side Panel.
5. Reset insulation and reattach Right Side Panel.
48
49
NUMBER
48
PART
PART NUMBER
NGC-1140
101688
Thermocouple – Cook Chamber
Screw – Thermocouple – Cook Chamber
49
: Removing the Cook Chamber (CC) Thermocouple
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THE CONTROL SYSTEM
43
Thermostat – Cooling Fan (Figure 48)
3. Pull back insulation where necessary.
The Cooling Fan Thermostat actuates the
cooling fans when the Electrical Compartment
Temperature reaches 120°F (49°C).
4. Disconnect the Wiring Harness from the
Cooling Fan Thermostat.
To replace a defective Cooling Fan Thermostat:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
5. Replace defective thermostat with P/N 102086.
6. Reconnect Wiring Harness.
7. Reset insulation and reattach Right Side Panel.
2. Remove Right Side Panel.
50
51
NUMBER
50
PART
PART NUMBER
102086
Thermostat – Cooling Fan
Screw – Thermostat – Cooling Fan (x2)
51
101687
: Removing Cooling Fan Thermostat
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44
THE CONTROL SYSTEM
Thermostat – Hi-Limit (Figure 49)
3. Pull back insulation where necessary.
The Hi-Limit Thermostat is a 250VAC, 3-Pole,
manual-reset thermostat with a trip point of 572ºF 4. Disconnect the Wiring Harness from the
(300°C). The Thermostat, which interrupts power
to the Heater Element, should never operate during
normal operation.
Hi-Limit Thermostat.
5. Replace defective thermostat with P/N 102075.
6. Reconnect Wiring Harness.
To replace a defective Hi-Limit Thermostat:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
7. Reset insulation and reattach Right Side Panel.
2. Remove Right Side Panel.
55
54
52
53
NOTE: Some oven components have been removed for clarity.
NUMBER
52
PART
PART NUMBER
102075
Thermostat – Hi-Limit
Screw – Thermostat – Hi-Limit (x2)
Screw – Thermostat Clamp
Thermostat Clamp
53
101672
54
101688
55
NGC-1152
: Removing the Hi-Limit Thermostat
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THE CONTROL SYSTEM
45
Voltage Sensor Screw.
4. Disconnect wiring from Voltage Sensor (2 wires to
Wiring Harness and 2 wires to terminal block).
Voltage Sensor (Figure 50)
Proprietary device designed to measure incoming
line voltage and distribute either 208 or 240 VAC
operation. The sensor is only included in ovens
operated in North and South America.
5. Replace defective Voltage Sensor with P/N
100783.
6. Reconnect wiring.
To replace a defective Voltage Sensor:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
7. Reattach the Electrical Plate Assembly and
side panel.
2. Remove Right Side Panel.
3. Remove Electrical Plate Assembly for access to
56
57
58
59
60
61
NUMBER
56
PART
PART NUMBER
101688
Screw – Voltage Sensor
Electrical Plate
57
HHB-8134
100783
58
Voltage Sensor
59
Grommet – Electrical Plate
Nut – Electrical Plate Ground
Screw – Electrical Plate (x2)
100644
60
100903
61
102911
: Replacing Voltage Sensor
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46
THE CONTROL SYSTEM
TROUBLESHOOTING
Troubleshooting:
No Keypad Input
Is the keypad cable properly connected
to the I/O Control Board?
YES
NO
Replace
Display Keypad.
(page 35)
Correct wiring.
If the problem
persists, replace the
I/O Control Board.
(page 39)
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THE CONTROL SYSTEM
47
Troubleshooting:
No Display – Screen is Blank
Does the Control beep when
a key is pressed?
YES
NO
Is the Power Supply
receiving power?
NO
Replace Fuses.
(page 37)
YES
Is wiring from the
I/O Control Board to
Display OK?
Correct wiring.
If ribbon cable is
damaged, replace
with P/N 103024.
NO
Is the Power Supply
output correct VDC?
(see page 2 for electrical
specifications.)
NO
NO
YES
Replace Power Supply.
(page 39)
YES
Is J3 Connector
receiving 5 VDC?
(Figure 62, page 64)
Replace I/O Control
Board. (page 39)
NO
Is I/O Control Board
receiving correct VDC?
YES
Check wiring from
Power Supply to I/O
Control Board. Correct
wiring if necessary.
Check voltage on D6
Diode on striped end
(Figure 62, page 64 for
schematic of the I/O
Control Board)
Replace Display.
(page 34)
YES
Verify 5 VDC is
present on J3
Connector. If not,
replace I/O Control
Board (page 39)
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The Oven Door
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THE OVEN DOOR
49
To access these components, first remove the Oven
Door (Figure 51):
This section contains information on the Oven
Door as it pertains to
o
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion.)
Serviceable Component Information and
Replacement Instructions
Parts and Part Numbers
o
o
2. Open oven door.
Troubleshooting
3. Rotate hinge retainers to the unlocked state.
4. Raise oven door so it rests on hinge retainers.
5. Remove door.
For more comprehensive hardware descriptions, see
page 69.
SERVICEABLE COMPONENTS
The following components of the oven door may
at some point need to be replaced
o
Door Gasket
o
Door Hinge
o
Door Switch
Rotate Hinge Retainer
forward to unlocked position
62
NUMBER
PART
PART NUMBER
62
Door
HHB-8080-2
: Removing the Oven Door
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50
THE OVEN DOOR
4. Replace damaged gasket with P/N HHB-8101.
5. Reinstall inner plate.
Door Gasket (Figure 52)
To remove a damaged Door Gasket:
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion.)
6. Reattach oven door.
2. Remove door (page 49).
3. Remove inner plate.
7. Return hinge retainers to locked state and close
oven door.
63
64
65
NUMBER
63
PART
PART NUMBER
102809
Screw – Door Inner Plate (x10)
Door Inner Plate
Door Gasket
64
HHB-8083
HHB-8101
65
: Removing the Door Gasket
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THE OVEN DOOR
51
4. Reattach oven door.
Door Hinge (Figure 53)
Spring-loaded hinge can be removed and replaced
as an entire unit.
5. Return hinge retainers to locked state and close
oven door.
To replace a Door Hinge:
Door Switch
See Control System for description and
replacement instructions (page 36).
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion.)
2. Remove Oven Door (page 49).
3. Replace hinge(s) with P/N 102807.
69
68
67
66
NUMBER
66
PART
PART NUMBER
102807
Door Hinge
67
Push Nut (x2)
101293
68
Hole Plug (x2)
101191
69
Screw – Door Hinge (1 per hinge =2 total)
101402
: Replacing a Hinge
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52
THE OVEN DOOR
TROUBLESHOOTING
Troubleshooting:
“Cook Door Open” Message when Door is Closed
Is wiring from Door Switch to
I/O Control Board OK?
YES
NO
Replace Door Switch
(page 36).
Is the Door Switch
properly installed?
(Ensure it is not loose
or cracked.)
Correct wiring.
If wiring is damaged,
replace the Door
Switch (page 36).
YES
If problem persists,
ensure Door Actuator
(see Figure 54, below) is
properly installed. If
problem continues to
persist, replace I/O
Control Board
NO
Reset Door Switch.
(page 39).
70
Ensure that this side (rather
than the bracket-side) faces
the oven upon reinstallation.
NOTE: Some oven components have been removed for clarity.
NUMBER
PART
PART NUMBER
70
Door Actuator
102789
: Door Actuator and Mounting Bracket
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The Impingement Circuit
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THE IMPINGEMENT CIRCUIT
53
The Impingement Circuit provides the high
temperature airflow necessary to brown and
cook food items. For a schematic that includes
all Impingement Circuit components, see
Figure 61, page 61. For more comprehensive
hardware descriptions, see page 69.
Blower Motor (Figure 55)
A Brushless DC Switch reluctance type. Its top
speed is 7200 RPM at 3/4 HP.
To replace a defective Blower Motor:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
This section contains
o
Serviceable Component Information and
2. Remove Blower Motor Controller (see page 32).
3. Disconnect wiring at Blower Motor Controller.
4. Remove Blower Motor Cover.
Replacement Instructions
Parts and Part Numbers
o
SERVICEABLE COMPONENTS
The following components of the Impingement
Circuit may at some point need to be replaced.
5. Replace defective motor with P/N HHB-8106.
o
Blower Motor
6. Reconnect wiring and reinstall Blower Motor
Controller/Blower Motor Cover.
o
Heater Element
Jetplates (Top and Bottom)
o
o
Swing Arm Assembly
71
72
74
73
NUMBER
71
PART
PART NUMBER
100905
Nut – Blower Motor (x6)
Blower Motor
72
HHB-8106
101688
73
Screw – Blower Motor Cover (x8)
Blower Motor Cover
74
NGC-1081
: Removing the Blower Motor
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54
THE IMPINGEMENT CIRCUIT
5. Pull back insulation where necessary.
Heater Element (Figure 56)
Sheathed-style/Calrod heaters. Attached to the
same cartridge, Heaters A and B can be tested
independently of one another.
6. Replace defective heater cartridge with
P/N HHB-8099.
a. Tighten flange nut
b. Reconnect Wiring Harness
c. Tighten jam nut
To replace a defective heater:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
CAUTION: An over-tightened flange nut
may cause heater failure. To prevent heater
failure, hold a wrench to the flange nut to keep it
in place when tightening the jam nut. This ensures
the jam nut tightens to the flange nut, rather than
the flange nut tightening more than it should.
2. Remove Right Side Panel.
3. Disconnect Wiring Harness from heaters.
4. Remove Insulation Shield.
7. Reset insulation.
79
77
78
76
75
NUMBER
75
PART
PART NUMBER
102963
Nut (Jam) – Heater Element (x4)
Nut (Flange) – Heater Element (x4)
Heater Insulation Shield
Screw – Heater Element (x6)
Heater Element
76
100903
77
HHB-8097
101688
78
79
HHB-8099
: Removing the Heater Element
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THE IMPINGEMENT CIRCUIT
55
8. Reinstall Insulation Shield.
9. Reattach Right Side Panel.
3. Remove Support Rails.
NOTE: Removing hardware is not required –
the Support Rails snap on and off. However,
they may require a gentle tap with a utensil to
snap into and out of place.
Jetplates (Figure 57)
The Jetplates help maximize food quality. Different
Jetplates facilitate different cooking results.
4. Replace Jetplate(s). For a listing of the different
types of Jetplates, see the comprehensive part
listing, page 65.
To replace a Jetplate:
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion.)
5. Reinstall Support Rails and Oven Rack.
2. Remove Oven Rack.
81
80
85
84
83
82
NUMBER
80
PART
PART NUMBER
HHB-8104
Rack
81
Support Rail – Bottom Left
Support Rail – Bottom Right
Support Rails – Top (x2)
Jetplate – Standard – Bottom
Jetplate – Standard – Top
HHB-8058-1
HHB-8058-2
HHB-8117
82
83
84
HHB-8013-1
HHB-8013-2
85
: Removing Jetplates
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56
THE IMPINGEMENT CIRCUIT
Swing Arm Assembly (Figure 58)
4. If problem persists, use the figure below to trou-
bleshoot the Swing Arm Assembly.
The Swing Arm Assembly is actuated by the Rack
Oscillator Motor. The attached oven rack oscillates
when the Swing Arm Assembly is in motion.
5. Unplug the oven.
If the rack is not oscillating properly,
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion.)
6. Remove all components from the left and right
sides of the oven (including insulation) to access
the Swing Arm Assemblies.
2. Ensure recipe settings have the rack set at “ON.”
(See pages 12-14 for modifying recipes.)
7. Remove the Swing Arm Covers.
8. Correct problem and reinstall all components.
3. If recipe settings are correct, ensure the Rack
Oscillator Motor is working properly (page 41).
88
89
87
86
NOTE: Some oven components have been removed for clarity.
NUMBER
86
PART
PART NUMBER
HHB-8044
HHB-8050
100152
Drag Link – Swing Arm Assembly
Swing Arm Assembly with Link Bar
Bushing – Swing Arm Assembly (x2)
Swing Arm Assembly
87
88
89
HHB-8040
: Swing Arm Assembly
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The Filtering System
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THE FILTERING SYSTEM
57
The filtering system helps remove debris from the
Cook Chamber. However, daily maintenance and
deep cleaning are still required to ensure oven
Catalytic Converter (Figure 59)
The Catalytic Converter – a VOC-type catalyst –
cleans the recirculating airflow. The catalyst sub-
functions most efficiently. For more comprehensive stantially lowers the combustion temperature of
hardware descriptions, see page 69.
grease entrained in the air path to approximately
the same temperature of the airflow, thus breaking
down grease into CO2 and H2O as it passes through
the Catalytic Converter. The catalyst operates most
efficiently at temperatures above 475ºF (246°C).
This section contains
o
Serviceable Component Information and
Replacement Instructions
o
Parts and Part Numbers
To service the Catalytic Converter:
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion.)
SERVICEABLE COMPONENTS
o
Catalytic Converter
o
2. Remove Oven Rack.
Filters
91
90
92
93
96
94
95
NOTE: Some oven components have been removed for clarity.
NUMBER
90
PART
PART NUMBER
HHB-8108
HHB-8030
101688
Catalytic Converter
Air Diverter Plate
Screw – Air Diverter Plate (x4)
Filter (x2)
91
92
93
HHB-8114
HHB-8115
101091
94
Filter Clip (x2)
Drain Pan
95
96
Drain Lid
HHB-8141
: Filtering System Parts
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58
THE FILTERING SYSTEM
3. Remove Jetplates (page 55).
4. Remove Air Diverter Plate.
5. Remove the Catalytic Converter.
Filters (Figure 59)
The two Filters help prolong the life of the
Catalytic Converter by trapping excess grease.
They are attached to the Air Diverter Plate via the
Filter Clips. When deep cleaning the oven (see
page 59), the operator/technician should check to
see if the Filters need to be replaced.
6. Clean the Catalytic Converter with TurboChef
Oven Cleaner (P/N 103180).
To remove a Filter:
CAUTION: DO NOT use a substitute
cleaner.
1. Ensure “Cool Down” process is completed. (“Cool
Down” message will disappear upon completion.)
7. Rinse thoroughly with distilled water.
CAUTION: Use distilled water only.
2. Remove Oven Rack.
3. Remove Jetplates (page 55).
8. Let the Catalytic Converter air dry before
reinstalling.
4. If more room to operate is necessary, remove the
Air Diverter Plate.
9. If necessary, replace the Catalytic Converter
with P/N HHB-8108.
5. Unfasten the Filter Clip from the center of the
Air Diverter Plate.
6. Swing the clip open and remove the Filter.
7. If necessary, replace it with P/N HHB-8114.
8. Reconnect the clip and reinstall all components.
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Cleaning the Oven
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CLEANING THE OVEN
59
DAILY MAINTENANCE
DEEP CLEAN INSTRUCTIONS
The procedures below will help in maintaining
the High h Batch oven. Be sure to use only
TurboChef Oven Cleaner. Using any other cleaning
products can damage critical parts and may void
warranty on those parts. Refer to Figure 60, page 60
to view the Cook Chamber components.
TurboChef recommends deep cleaning the oven
once a month (or more frequently, depending on
use) to ensure optimal performance. Be sure to use
only TurboChef Oven Cleaner. Using any other
cleaning products can damage critical parts and
may void warranty. Reference Figure 60, page 60,
to view Cook Chamber components.
Supplies and Equipment
o
TurboChef Oven Cleaner
Supplies and Equipment
o
Nylon scrub pad
Cleaning towel
o
o
o
TurboChef Oven Cleaner
Nylon scrub pad
Cleaning towel
o
Cleaning Procedures
Step 1: Prepare the Oven for Cleaning.
Deep Clean Procedures
o
Ensure oven is turned off. To turn off oven,
press “ON/OFF” Key.
Step 1: Prepare the Oven for Cleaning.
o
Ensure Cool Down process is complete. (“Cooling
o
Ensure oven is turned off. To turn off oven,
Down” will disappear upon completion.)
press “ON/OFF” Key.
o
Ensure Cool Down process is complete. (“Cooling
WARNING: Possible injury can occur if
oven is not allowed to cool properly before
cleaning. do not attempt to clean it until the
“Cooling Down” message is off.
Down” will disappear upon completion.)
WARNING: Possible injury can occur if
oven is not allowed to cool properly before
cleaning. do not attempt to clean it until the
“Cooling Down” message is off.
Step 2: Remove Oven Rack.
o
Wash, rinse, and sanitize Oven Rack.
Step 2: Clean and Remove the Oven Door.
Step 3: Clean Oven Door and Cook Chamber.
o
Spray TurboChef Oven Cleaner to break up
stubborn stains. Allow cleaner to penetrate for
5 minutes.
o
Using a damp towel, remove food particles.
o
In case of stubborn stain, spray TurboChef
Oven Cleaner.
o
Scrub with nylon scrub pad, if necessary.
o
Wipe down.
CAUTION: Do not spray or wipe cleaning
chemicals onto the Catalytic Converter (See
Figure 60 for a diagram of the Cook Chamber).
o
See page 49 for removal instructions.
Step 3: Remove Oven Rack.
o
Wash, rinse, and sanitize Oven Rack.
o
Allow cleaner to penetrate for 5 minutes.
o
Scrub with nylon scrub pad, if necessary.
Wipe Oven Door and Cook Chamber with
Step 4: Remove Top and Bottom Jetplates.
o
o
For instructions, see page 55.
damp towel.
o
Wash, rinse and sanitize the Jetplates and
Support Rails.
Step 4: Reattach the Oven Rack.
Step 5: Wipe Oven Exterior with a Clean, Damp Towel.
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CLEANING THE OVEN
60
Top Jetplate
Air Diverter Plate
(covers the Catalytic Converter)
Filter
Oven Rack
Bottom Jetplate
: The Cook Chamber
Step 5: Check Grease Filters.
Step 7: Dry Cook Chamber and Drain System.
o
o
Plate is attached via 4 screws.
Using a clean dry towel, dry the Cook Chamber
o
Check to see if Filters (P/N HHB-8114) need to
and Drain System.
be replaced. To order Filters, call 800.90TURBO
or your Authorized Distributor.
Step 8: Remove the Drain Pan.
o
o
If necessary, remove Filters by first unhooking
Wash, rinse and sanitize the Drain Pan.
the Filter Clip (P/N HHB-8115) which is
attached at the center of the Air Diverter Plate.
Step 9: Reattach and Reinstall all Clean Components.
Step 6: Clean the Cook Chamber and Drain System.
Step 10: Wipe Down the Outside of the Oven with a
Clean, Damp Towel.
o
Spray TurboChef Oven Cleaner to break up
stubborn stains. Allow cleaner to penetrate for
5 minutes.
o
Scrub with nylon scrub pad, if necessary.
o
Open the Drain Lid and use water to flush out
food particles into the Drain Pan.
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High h Batch Schematic
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HIGH H BATCH SCHEMATIC
61
-V
+V
24VDC
POWER
SUPPLY
(101206)
VFD DISPLAY
64 X 128 DOTS
N
L
G
GY 2
OSCILLATING RACK RELAY, K1
(101273)
1
1
2
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
25 26
25 26
DOOR SWITCH
OSCILLATING RACK MOTOR
(HHB-8135)
NC
C
1
7
P5
1
1
2
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
25 26
25 26
BL 18
BK-22
4
3
6
BL 9
K1
NO
BLUE
BLUE
9
0.1uF 700V
BR 14
WHT
RED
MAG
CT
BR 10
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
RELAY ASSY
PINOUT
A
B
OR-6
OR-6
MONITOR (NO) INTER IN
OR-9
BMSC (9) (STATUS OK)
HX STATUS IN
BMSC SEL
10 10
11 11
12 12
13 13
14 14
15 15
16 16
FAN1 (COOLING)
(100516)
ASPEN
OR-13
RD-16
VOLT MODUAL IN
+24V PS IN
BR 5
P3
BL 7
17 17
BL 17
BR 13
FAN2 (COOLING)
(100516)
18 18
19 19
20 20
21 21
RD-19
BK-20
-24V PS IN
-24V P&S INTER RTN
-24V MONITOR RTN
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 37
38 38
39 39
40 40
BK-22
RD-24
BK-25
BMSC 0-10V OUT
BMSC COMM (2)
BL 8 BR 6
SOLID STATE RELAY (DUAL)
(101286)
WT-27
WT-28
OT1
MANUAL RESET
(100516)
A1
A2
K6-B (VOLTS MOD OUT)
K4 (B-) (CONV OUT)
BMSC (3) (ENABLE OUT)
BMSC (4) (COM RTN)
-24V (VOLT MODULE RTN)
A
B
WH-30
BL 27
BL 28
C
WH-301
NC
RD-19
-
-
K4
K5
BR 11
BL 16
BR 12
1
1
WH-31
BK-32
BK-33
BL 3
BR 4
WH-301
WH-28
31
NC
32
C
2
3
4
2
3
4
BL 25
BL 26
BL 15
C2/C3
22 21
B1
B2
1
C
NC
1
BR 29
11
12
HX ELEMENT (HHB-8107)
2
2
A(-)
C(+)
A(-)
2500 WATTS @ 208 V
17.30 OHMS
C
NO
F
F1: 12 AMPS CLASS CC (100595)
F2: 12 AMPS CLASS CC (100595)
F1
F2
EC
CC
EC
THERMOCOUPLES
RJ11
RJ11
1
1
C(+)
OT 2 - 120
(102086)
CC
2
2
GREEN
M3 WHITE
M2 RED
240 VAC
3 PHASE
OUT
4
3
2
1
VOLTAGE MODULE
(100783)
BL 22 BR 19
BL 24
BL 23
M1 BLK
1
-
-
-
-
-
-
14
14
2
2
-
-
-
-
J4
P4
1
BMSC
cavity air
P6
J6
-
-
-
-
-
-
-
-
-
-
14
14
1
1
2
2
0-10V
I/O COM
ENABLE
1
SPD CMD
BLWR
MTR
2
3
4
5
6
1
2
3
BR 20
BR 21
I/O COM
STATUE OK
I/O COM
KEYPAD
200-240
VAC IN
BL 3
BR 4
GY 1
SMART CARD CONNECTOR
(100506)
E1
: High h Batch Schematic
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HIGH H BATCH SCHEMATIC
63
HHB OVEN SCHEMATIC
Low Voltage Components
Cable – Smart Card Connector
Display, VFD
Door Switch
Figure 61. Inside of fold-out page. Rev 2 Board,
VFD Display, Single Phase, 280/240 VAC, 60 Hz
I/O Control Board
Keypad
NOTE: Schematic shows the oven with door open
and without power applied.
Ribbon Connector – Display
Smart Card Reader
Thermocouple – CC
Thermocouple – EC
Wiring Harness – Low Voltage
Color Code (Line Voltage)
BL – Blue = Line V (208/240)
BR – Brown = Line V (208/240)
OR – Orange = 240 Line Input for Tap 3 on
all Transformers
BK – Black = Hi-Temp 240 VAC Wire
I/O CONTROL BOARD COMPONENT IDENTIFICATION
AND TEST POINT LOCATIONS
Color Code (Low/Control Voltage)
BK – Black = 24 VDC Common
OR – Orange = Status Input
WH – White = Control Input
RD – Red = +24 VDC
Figure 62, page 64
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
Line Voltage Components
Blower Motor
Blower Motor Controller
Cooling Fans
Fuses
Heater Element
Power Supply, +24VDC
Rack Oscillator Motor
Relay
(for computer hookup, if necessary)
RJ11 Connector for Smart Card Cable
U15 EPROM Socket
P1
P3
Voltage Reference 0-5 VDC
Blower Controller Pin Configuration
SKP1 Beeper
R51 Beeper Volume Adjustment
Solid State Relay
Thermostat – Cooling Fan
Thermostat – Hi-Limit
Voltage Sensor Module
Wiring Harness – Line Voltage
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64
HIGH H BATCH SCHEMATIC
: I/O Control Board and Test Point Locations
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Comprehensive Part Listing
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COMPREHENSIVE PART LISTING
65
COMPREHENSIVE PART LISTING
PART
PART NUMBER
HHB-8030
HHB-8106
100443
ILLUSTRATION
Air Diverter Plate
Figure 59, page 57
Figure 55, page 53
Figure 39, page 32
Figure 55, page 53
Not labeled
Blower Motor
Blower Motor Controller
Blower Motor Cover
Blower Motor Mounting Plate
Bracket – Blower Motor Controller
Bracket – Display (x2)
Bracket – Rack Oscillator Motor
Bushing – Swing Arm Assembly (x2)
Cable – Smart Card Reader
Cable Mount – Adhesive (x3)
Catalytic Converter
NGC-1081
HHB-8009
HHB-8111
HHB-8130
HHB-8049
100152
Figure 39, page 32
Figure 41, page 34
Figure 46, page 41
Figure 58, page 56
Figure 45, page 38
Not labeled
103023
100174
HHB-8108
HHB-8055
HHB-8088
100087
Figure 59, page 57
Not labeled
Component Plate
Component Plate Shield
Cooling Fan Finger Guard
Cooling Fans – Inlet/Exhaust
Cover – Cooling Fan (Exhaust)
Cover – Drag Link/Left Swing Arm Assembly
Cover – Right Swing Arm Assembly
Crank – Rack Oscillator Motor
Display
Not labeled
Figure 40, page 33
Figure 40, page 33
Figure 40, page 33
Not labeled
100516
HHB-8079
HHB-8053
HHB-8052
HHB-8045
100505
Not labeled
Figure 46, page 41
Figure 41, page 34
Figure 42, page 35
Figure 51, page 49
Figure 54, page 52
Figure 52, page 50
Figure 53, page 51
Figure 52, page 50
Not labeled
Display Keypad
HHB-8064
HHB-8080-2
102789
Door
Door Actuator
Door Gasket
HHB-8101
102807
Door Hinge
Door Inner Plate
HHB-8083
HHB-8084
102788
Door Receiver
Door Switch
Figure 43, page 36
Figure 43, page 36
Figure 58, page 56
Figure 59, page 57
Figure 59, page 57
Not labeled
Door Switch/Actuator Mounting Bracket
Drag Link – Swing Arm Assembly
Drain Lid
HHB-8086
HHB-8044
HHB-8141
101091
Drain Pan
Drain Pan Rack
HHB-8105
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66
COMPREHENSIVE PART LISTING
PART
PART NUMBER
HHB-8134
HHB-8114
HHB-8115
100592
ILLUSTRATION
Electrical Plate
Figure 50, page 45
Figure 59, page 57
Figure 59, page 57
Figure 44, page 37
Figure 44, page 37
Figure 44, page 37
Figure 50, page 45
Figure 56, page 54
Figure 56, page 54
Figure 53, page 51
Figure 45, page 38
Not labeled
Filter (x2)
Filter Clip (x2)
Fuse – Class CC, 12 AMP (x2)
Fuse Cover
HHB-8136
100586
Fuse Holder (x2)
Grommet – Electrical Plate
Heater Element
100644
HHB-8099
HHB-8097
101191
Heater Insulation Shield
Hole Plug (x2)
I/O Control Board
NGC-1008
HHB-8041
HHB-8028
HHB-8029
HHB-8085
HHB-8155-1
HHB-8155-2
HHB-8156-1
HHB-8156-2
HHB-8013-1
HHB-8013-2
100785
Insulation – Left Side Can
Insulation – Main Can
Insulation – Right Side Can
Insulation – Top/Door
Jetplate – High Coverage – Bottom (Accessory)
Jetplate – High Coverage – Top (Accessory)
Jetplate – Pizza – Bottom (Accessory)
Jetplate – Pizza – Top (Accessory)
Jetplate – Standard – Bottom
Jetplate – Standard – Top
Leg
Not labeled
Not labeled
Not labeled
Not labeled
Not labeled
Not labeled
Not labeled
Figure 57, page 55
Figure 57, page 55
Not labeled
Leg – Non-Skid Pad
100786
Not labeled
Nut – Blower Motor (x6)
Nut – Display (x2)
100905
Figure 55, page 53
Figure 41, page 34
Figure 43, page 36
Figure 50, page 45
Not labeled
102963
Nut – Display Panel (x2)
Nut – Electrical Plate Ground
Nut – Pinches Wiring Harness to Terminal Block (x2)
Nut – Smart Card Reader Standoff (x4)
Nut (Flange) – Heater Element (x4)
Nut (Jam) – Heater Element (x4)
Panel – Display
100903
100903
100903
102961
Not labeled
100903
Figure 56, page 54
Figure 56, page 54
Figure 41, page 34
Figure 41, page 34
Figure 41, page 34
Not labeled
102963
HHB-8025
HHB-8023-2
HHB-8024-2
100187
Panel – Left Side
Panel – Right Side
Power Cord
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COMPREHENSIVE PART LISTING
67
PART
PART NUMBER
NGC-1167
101206
101293
HHB-8104
HHB-8118
HHB-8135
101273
101297
101297
103024
101688
101688
101688
101688
102921
101694
101688
101520
101421
101402
101693
102809
101421
101688
102911
101663
101688
101688
102910
102911
102911
101672
101688
101714
101687
ILLUSTRATION
Power Cord Mounting Bracket
Power Supply
Not labeled
Figure 45, page 38
Figure 53, page 51
Figure 57, page 55
Not labeled
Push Nut (x2)
Rack
Rack – Offset (Accessory)
Rack Oscillator Motor
Figure 46, page 41
Figure 45, page 38
Figure 46, page 41
Not labeled
Relay
Retaining Ring – Rack Oscillator Motor
Retaining Ring – Swing Arm Assembly
Ribbon Connector – Display
Screw – Air Diverter Plate (x4)
Screw – Blower Motor Controller (x4)
Screw – Blower Motor Controller Bracket (x4)
Screw – Blower Motor Cover (x8)
Screw – Component Plate Standoff (x4)
Screw – Cooling Fan Assy (4 x 2 fans = 8)
Screw – Cooling Fan Cover (x3)
Screw – Display (x4)
Not labeled
Figure 59, page 57
Figure 39, page 32
Figure 39, page 32
Figure 55, page 53
Not labeled
Figure 40, page 33
Figure 40, page 33
Figure 41, page 34
Not labeled
Screw – Door Actuator (x2)
Screw – Door Hinge (1 per hinge = 2 total)
Screw – Door Hinge Receiver (x4)
Screw – Door Inner Plate (x10)
Screw – Door Switch/Actuator (x2)
Screw – Drain Pan Rack (x3)
Screw – Electrical Plate (x2)
Screw – Front Side Panel (x2 per side)
Screw – Fuse Cover
Figure 53, page 51
Not labeled
Figure 52, page 50
Figure 43, page 36
Not labeled
Figure 50, page 45
Figure 41, page 34
Figure 44, page 37
Figure 56, page 54
Figure 45, page 38
Not labeled
Screw – Heater Element (x6)
Screw – I/O Control Board (x4)
Screw – I/O Control Board Standoff (x4)
Screw – Power Supply (x3)
Figure 45, page 38
Figure 46, page 41
Figure 46, page 41
Not labeled
Screw – Rack Oscillator Motor (x2)
Screw – Rack Oscillator Motor Bracket (x2)
Screw – Rack Oscillator Motor Crank
Screw – Relay (x2)
Figure 45, page 38
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68
COMPREHENSIVE PART LISTING
PART
PART NUMBER
101688
ILLUSTRATION
Screw – Side Panel (8 per panel)
Screw – Smart Card Reader (x4)
Screw – Solid State Relay (x2)
Screw – Terminal Block (x2)
Screw – Thermocouple – Cook Chamber
Screw – Thermostat Clamp
Screw – Thermostat – Cooling Fan (x2)
Screw – Thermostat – Hi-Limit (x2)
Screw – Voltage Sensor
Figure 41, page 34
Figure 45, page 38
Figure 45, page 38
Not labeled
102911
101688
102963
101688
Figure 47, page 42
Figure 49, page 44
Figure 48, page 43
Figure 49, page 44
Figure 50, page 45
Figure 45, page 38
Figure 45, page 38
Not labeled
101688
101687
101672
101688
Smart Card Reader
100506
Solid State Relay
101286
Standoff – Component Plate (x4)
Standoff – I/O Control Board (x4)
Standoff – Smart Card Reader (x4)
Support Rail – Bottom Left
Support Rail – Bottom Right
Support Rails – Top (x2)
102921
101951
Figure 45, page 38
Figure 45, page 38
Figure 57, page 55
Figure 57, page 55
Figure 57, page 55
Not labeled
101947
HHB-8058-1
HHB-8058-2
HHB-8117
HHB-8110
HHB-8040
HHB-8050
NGC-1140
700-1199
NGC-1152
102086
Support Tube – Front Side Panel Screws (2 per panel)
Swing Arm Assembly
Figure 58, page 56
Figure 58, page 56
Figure 47, page 42
Not labeled
Swing Arm Assembly with Link Bar
Thermocouple – Cook Chamber
Thermocouple – Electrical Compartment
Thermostat Clamp
Figure 49, page 44
Figure 48, page 43
Figure 49, page 44
Not labeled
Thermostat – Cooling Fan
Thermostat – Hi-Limit
102075
TurboChef Oven Cleaner
103180
TurboChef Oven Guard
103181
Not labeled
Voltage Sensor
100783
Figure 50, page 45
Figure 46, page 41
Not labeled
Washer – Rack Oscillator Motor
Washer – Swing Arm Assembly
Wiring Harness – Line Voltage
Wiring Harness – Low Voltage
102451
102451
103022
Not labeled
103021
Not labeled
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COMPREHENSIVE PART LISTING
69
HARDWARE DESCRIPTIONS
PART NUMBER
100903
100905
101402
101421
101520
101663
101672
101687
101688
101693
101694
101714
101913
101947
101951
102809
102910
102911
102921
102961
102963
DESCRIPTION
Nut – #10-32, Hex, Serrated, Flange, SS
Nut – #1/4-20, Hex, Serrated, Flange,SS
Screw – #10-32 X 1/4, PHFH
Screw – #4-40 x 1/2, PHFH, 100 Deg, SS
Screw – #4-40 X .25 Lg
Screw – #8, Type A X 2-1/4, PHFH, Sheet Metal, SS
Screw – M4 X .7 X 8, Sem, Internal Tooth
Screw – #6-32 X 1/2, PPH, Sheet Metal, Drill Point, Zinc
Screw – #8-15, Sheet Metal, Type A, PTRHD, Serrated
Screw – #10-32 X 1/4, PHTRH, SS
Screw – #10-32 X 1/2, PPHD, Thread Cutting, Cres or Other
Screw – Set, #8-32 X 3/16, Skt Hd, BO Steel
Standoff – #8-32 X 1.25 Lg, Hex, M/F, Zinc
Standoff – #6-32 X 1.25 Lg, M/F, Zinc-plated Steel
Standoff – #6-32 X 5/8 X .25 Hex, F/F, Zinc
Screw – #8-32 X 3/8, PFLH, 100 Deg, SS
Screw – #6-32 X 1/4, Sems, Internal Tooth, PPHD, Cres
Screw – #6-32 X 3/8, PPH, Sem, Internal Tooth, SS
Screw – #8-32 X 3/8, PPHD, Sem, Internal Tooth, SS
Nut – #6-32 KEPS, External Tooth, SS
Nut – #10-32, Keps, External Tooth, SS
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Glossary of Terms
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GLOSSARY OF TERMS
71
Air Diffuser Plate
Cook Cycle
Accessory plate that covers openings in the
jetplate for very delicate cooking.
All operative aspects of cooking a product.
Cook Time
Air Diverter Plate
Covers the Catalytic Converter.
Function on Test Mode Menu that displays the
cumulative time of Cook Cycles.
Blower Motor
Cool-down State
Located in back of oven, the Blower Motor
actuates the impingement process. Actuated by
Blower Motor Controller.
State during which the Blower Motor blows cool
air into the Cook Chamber until the temperature
is below 150ºF (66°C). Takes approx. 90 minutes.
Blower Motor Controller (BMSC)
Cooling Fans
Proprietary brushless DC Blower Motor
Controller actuates the Blower Motor.
Inlet and exhaust fans that ventilate the Electrical
Compartment.
Catalytic Converter
Cooling Fan – Exhaust
Part of Filtering System, the Catalytic Converter
cleans recirculating airflow.
Air that ventilates the Electrical Compartment
exits through the exhaust fan.
CC Thermocouple
Cooling Fan – Inlet
See Thermocouple – CC
Air that ventilates the Electrical Compartment
enters through the inlet fan.
Component Plate
Plate to which the I/O Control Board, Power
Supply, Relay, Smart Card Reader, and Solid State
Relay are attached.
Cooling Fan Thermostat
See Thermostat – Cooling Fan
Cumulative Operating Time
Control Board
See I/O Control Board
Function on Test Mode Menu that displays
cumulative time of oven operation (i.e., total time
oven has been on).
Control System
System that signals, senses, commands, and
actuates the oven’s other various components.
Daily Maintenance
Procedure that operator should apply every day to
ensure oven remains in optimal condition.
Cook Chamber
Chamber in which food cooks.
Deep Clean
Process that operator and/or technician should
apply approximately once per month (or more
frequently as needed) to ensure oven remains in
optimal condition.
Cook Chamber Temperature
Actual temperature of the Cook Chamber regis-
tered by the Cook Chamber Thermocouple.
Cook Counter
Demonstration Mode
Function on Test Mode Menu that displays number Accessible from the Options Menu. Allows the
of Cook Cycles the oven has completed.
operator to view/show every operational aspect of
the oven without the oven actually heating up.
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72
GLOSSARY OF TERMS
Diagnostic Mode
Drain Pan Rack
Function that displays diagnostic information
during all operative activities.
Supports drain pan; attached to bottom of oven.
EC Thermocouple
Display
See Thermocouple – EC
Screen through which operator and oven interact.
Edit Menu
Display Keypad
The primary interface for the operator.
Menu from which operator/technician can modify
Cook Chamber temperature, recipes, and recipe
settings. The oven must be in either Off State or
Cool-down State for operator to be able to access
the Edit Menu.
Done Screen
Screen at the end of a Cook Cycle from which the
operator can save an adjusted cook time or cook an
item longer than its predetermined cook time.
Electrical Compartment
Area that houses Control System components.
Door Actuator
Magnet in oven door. Detected by Door Switch to Electrical Compartment Temperature
determine if door is open or closed.
Actual temperature of the Electrical Compartment
registered by the EC Thermocouple.
Door – Inner Plate
Plate that covers door gasket.
Electrical Plate
Plate to which terminal block and Voltage Sensor
are attached.
Door Receiver
Mechanism in each hinge slot to which the oven
hinges attach.
Error Message
A message that is displayed when an unusual event
occurs. The screen will display an error message
only when the error occurs. Error messages are not
logged in the Fault Log.
Door Switch
Sensor that detects actuator. The Control System
determines whether the door is open or closed via
the Door Switch.
Event
Drag Link
Subset of Food Item. An event is a portion of a
Cook Cycle in which the operator can specify a
difference in blower intensity. Each food item can
potentially be broken into four events, or “phases.”
Bar that connects Rack Oscillator Motor to left
Swing Arm Assembly.
Drain Lid
Lid at bottom of Cook Chamber through which
(when opened) excess debris is funneled into the
drain pan.
Exhaust Fan
See Cooling Fan – Exhaust
Fan
Drain Pan
See Cooling Fans
Removable metal pan that collects grease and food
particles that drain from Cook Chamber.
Fault Codes
Code numbers (F1–F8) that describe faults or
errors the oven has encountered.
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GLOSSARY OF TERMS
73
Fault Log
Impingement Circuit
Located in Test Mode, the Fault Log (or “Fault
Code Counter”) lists each fault code and number
of times oven has encountered each. The Fault Log
logs up to 255 instances per fault before rolling
back to zero.
System that provides the high temperature airflow
necessary to brown and cook food items.
Inlet Fan
See Cooling Fan – Inlet
Filter
Inner Plate
Easy-to-remove filters help prolong the life of the
Catalytic Converter by trapping excess grease. The
filters are attached to the Air Diverter Plate via
Filter Clips.
See Door – Inner Plate
Jetplates
Top and bottom plates within the Cook Chamber
that can be removed/replaced to increase or
decrease heat transfer rates.
Filter Clip
Attaches filter to Air Diverter Plate.
Keypad
Filtering System
See Display Keypad
Helps remove debris from Cook Chamber.
Link Bar
Food Group
Connects left and right Swing Arm Assemblies to
Subset of Menu, superset of Food Item. Each food ensure synchronized rack oscillation.
group contains 6 recipes, or “food items.” 12 total
food groups exist, comprising a Menu.
Mechanical Relay
See Relay
Food Item
Subset of a Food Group. Operator programs
food items (or “recipes”) to preset cook times and
specify events.
Menu
See Recipe Menu
Motor
Heater Element
See Blower Motor
Sheathed-style/Calrod heaters. Attached to the
same cartridge, heaters A and B can be tested
independently of one another.
Motor Controller
See Blower Motor Controller
Heater Insulation Shield
Off State
Protective rubber shield that prevents Heater
Element from touching insulation covering.
Impingement Circuit is off and Cook Chamber
temperature is below 150ºF (66°C), but Control
System remains operational. When the oven is off,
the operator/technician can access the Edit Menu,
Options Menu, and Test Mode Menu.
Hi-Limit Thermostat
See Thermostat – Hi-Limit
I/O Control Board
Options Menu
Controls every oven component. See Figure 62,
page 64 for test point locations.
Menu from which operator can enable/disable various
operative functions. The oven must be in either Off
or Cool-down State to access Options Menu.
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74
GLOSSARY OF TERMS
Oven Rack
Recipe Menu
See Rack
Highest superset of recipes, the menu consists of
12 food groups of 6 recipes, or 72 recipes total.
Percentage (%) Air
Function that allows operator/technician to specify Relay
the relative amount of impingement airflow (speed 240 VAC, 30 Amp, Double Pole, Double Throw,
of Blower Motor) during each Cook Cycle event.
Valid percentages are between 10 and 100%.
24 VDC Relay Coil. Actuates Rack Oscillator Motor.
Serial Number
NOTE: Maximum 100% = 7100 RPM Blower
Motor Speed. Blower Motor Speed scale is linear.
Unique serial number issued to oven that can be
viewed from the Test Mode Menu.
Percentage (%) Time
Smart Card
Function that allows operator/technician to specify A Smart Card can synchronize with the oven’s
the duration of each Cook Cycle event. Percentages control system to overwrite (or be overwritten of)
across events must add up to 100%.
existing recipes.
Power Supply
Smart Card Reader
24 VDC Output at 40 Watts. Supplies control
voltage for I/O Control Board, Relay, and Solid
State Relay.
Reads Smart Card and synchronizes with Recipe
Menu stored in oven.
Solid State Relay (SSR)
Rack
240 VAC, Dual 40 Amp Solid State Relay.
Actuates the Heater Element. When the SSR is
actuated, the (-) control input will go to 0.00
VDC. When not actuated, the control input will
read -24.00 VDC.
Wire rack that when attached to oscillator pins,
oscillates to allow the food item to cook evenly.
Rack Oscillator Motor
The Rack Oscillator Motor actuates the left Swing
Arm Assembly. Actuated by Mechanical Relay.
Status Indicators
Letters at bottom of the Test Mode Menu that help
in troubleshooting the Door (D), Heater A (left
H), Heater B (right H), and Blower (A). The oper-
ator also has the option to turn on status indicators
for all operative activities via the Diagnostic Mode
function.
Ready to Cook State
The oven is “ready to cook” when it has warmed
to the preset Cook Chamber temperature. At this
point, operator can enter cook commands via
the keypad.
Receiver
Support Rails
See Door Receiver
Rails that support top and bottom Jetplates.
Recipe
Swing Arm Assembly
See Food Item
Located behind Swing Arm Covers, mechanisms on
either side of the oven that actuate rack oscillation.
Recipe Counter
Option that displays how many times each recipe
(food item) has been used.
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GLOSSARY OF TERMS
75
Temperature Offset
Voltage Sensor
Feature that provides accurate temperature readings Proprietary device designed to measure incoming
of where food actually cooks as opposed to where
thermometer is located. Can be modified in Test
Mode Menu.
line voltage and switch between 208 and 240 VAC
operation. The sensor is only included in ovens
operated in North and South America.
Test Mode Menu
Warm-up State
Menu from which technician can run diagnostics
State during which the oven warms itself to the
and check statistics. The oven must be in either the predetermined Cook Chamber temperature.
Off State or Cool-down State to access the Test
Mode Menu.
Wiring Harness
System of wires that distributes power to each of
the oven’s components. Consists of Low-voltage
harness and Line-voltage harness.
Thermocouple – CC
Cook Chamber Thermocouple. This Type K ther-
mocouple measures the temperature of the recircu-
lating impingement airflow.
Write Card Function
Function that allows operator to save a Recipe Menu
to a Smart Card. This function can be enabled or
disabled in the Options Menu, as overwriting a
Smart Card is not generally recommended.
Thermocouple – EC
Electrical Compartment Thermocouple. Located
on the I/O Control Board, this Type K
Thermocouple measures the temperature of the
Electrical Compartment.
Thermostat – Cooling Fan
Actuates the cooling fans when EC temperature
reaches or exceeds 120°F (49°C).
Thermostat – Hi-Limit
The Hi-Limit Thermostat is a 250VAC, 3-Pole,
manual-reset thermostat with a trip point of 572ºF
(300°C). The Thermostat, which interrupts power
to the Heater Element, should never operate during
normal operation.
Time Screen
Screen from which operator can adjust total cook
time before initiating a Cook Cycle.
Total Cook Time
Temporal measurement of a Cook Cycle.
TurboChef Oven Cleaner
Cleaning solution that is safe to use on the High
h Batch oven. Using other cleaners may damage
critical parts and void warranty. To order call
800.90TURBO.
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Subject Index
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SUBJECT INDEX
77
Air Diverter Plate
Cook Counter
Part number
Removing when servicing
Catalytic Converter
57, 65
57-58
Description
Viewing instructions
27
27
Cook Time
Blower Motor
Cover
Description
Description
Viewing instructions
27
27
53
53
Mounting Plate (part number)
Part number
Replacement instructions
Testing
65
53, 65
53
Cooking
Instructions
Options
6
7
24
Troubleshooting – F1 Fault
17
Cool-down State
Description
Menus in which can access
5
6
Blower Motor Controller (BMSC)
Bracket to which attached
(part number)
32, 65
32
Cooling Fans
Description
Description
33
33
Illustration
32
Exhaust Fan
Part number
Replacement instructions
32, 65
32
Exhaust Fan Cover (part number)
Finger Guard (part number)
Illustration
33, 65
33, 65
33
Catalytic Converter
Cleaning Instructions
Description
Inlet Fan
Part number
Replacement instructions
Thermostat
33
33, 65
33
57-58
57
Illustration
57
Part number
Replacement instructions
57, 65
57
(See Thermostat – Cooling Fans)
Cumulative Operating Time
Description
Viewing instructions
Control Board
See I/O Control Board
28
28
Control System
Daily Maintenance
Description
Schematic
Serviceable components
Troubleshooting: No Display (Blank)
Troubleshooting: No Keypad Input
31
61
31
47
46
Cleaning procedure
Supplies and equipment
59
59
Deep Clean
Cleaning procedure
Supplies and equipment
59
59
Cook Chamber
Daily maintenance
Deep cleaning procedure
Illustration
Temperature Offset
Temperature Settings
59
59
60
24
12
Demonstration Mode
Description
Enabling/disabling
11
11
Diagnostic Mode
Description
Enabling/disabling
27
27
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78
SUBJECT INDEX
Display
Bracket (part number)
Illustration
Door – Push Nut
Illustration
Part number
34, 65
34
51
51, 67
Part number
Replacement instructions
Troubleshooting
34, 65
34
Door Receiver
34
Part number
65
Display Keypad
Description
Illustration
Door Switch
Description
Illustration
35
35
36
36
Part number
Replacement instructions
Troubleshooting
35, 65
35
Part number
36, 65
36
Replacement instructions
Troubleshooting: “Cook Door Open”
Message when door is closed.
46
52
Display Panel
See Panels
Door Switch/Actuator Mounting Bracket
Illustration
36, 52
36, 65
Done Screen
Description
Enabling/disabling
Options
Part number
7
10
7
Drain Lid
Illustration
Part number
57
57, 65
Door
See Oven Door
Drain Pan
Illustration
57
Door Actuator
Part number
57, 65
Illustration
Part number
52
52, 65
Removing when deep cleaning
Cook Chamber
59-60
65
Troubleshooting: “Cook Door Open”
Message when door is closed
52
Drain Pan Rack
Part number
Door Gasket
Illustration
Part number
Replacement instructions
50
50, 65
50
Edit Menu
Description
Enabling/disabling
Options
6
8
12
6
Door Hinge
Oven states in which accessible
Description
Illustration
51
51
Electrical Compartment
Part number
Replacement instructions
51, 65
51
Temperature troubleshooting
20
Electrical Plate
Illustration
Part number
Door – Inner Plate
Illustration
Part number
45
45, 66
50
50, 65
50
Removing to access door gasket
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SUBJECT INDEX
79
Electrical Specifications
Canada
Europe/Asia/Pacific
North America (except Canada)/
South America
Fault Log
2
2
Description
Viewing instructions
Zero-out
17
24
24
2
2
United Kingdom/Ireland
Filter
Description
Illustration
58
57
Error Message
F8 Fault
20
Part Number
57, 66
Removing when deep cleaning
Cook Chamber
Replacement instructions
Event
Description
Modifying
Percentage Air
Percentage Time
59-60
58
14
12-14
14
Filter Clip
14
Description
Illustration
Part Number
58
57
57, 66
Fault Code – F1: Blower Running Status Bad
Clearing instructions
Description
Table of when Fault occurs
Troubleshooting
17
17
17
18
Filtering System
Description
Illustration
57
57
57
Serviceable components
Fault Code – F2: Cook Temperature Low
Clearing instruction
Description
Table of when Fault occurs
Troubleshooting
17
17
17
19
Food Group
Description
Modification instructions
Selecting to cook
6-7
12-14
6-7
Fault Code – F6: EC Temperature High
Clearing instructions
Description
Table of when Fault occurs
Troubleshooting
Food Item
Description
Modification instructions
Selecting to cook
20
20
17
21
6-7
12-14
6-7
Fuse
Fault Code – F7: Thermocouple Open
Clearing instructions
Description
Table of when Fault occurs
Troubleshooting
Description
Illustration
Part number
Replacement instructions
37
37
37, 66
37
20
20
17
21
Fuse Cover
Fault Code – F8: Heat Rise Low
Clearing instructions
Description
Table of when Fault occurs
Troubleshooting
Illustration
Part number
37
37, 66
20
20
17
22
Fuse Holder
Illustration
Part number
37
37, 66
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80
SUBJECT INDEX
Hardware Descriptions
69
Motor Controller
See Blower Motor Controller (BMSC)
Heater Element
Description
Part number
Replacement instructions
Testing
54
54, 66
54
Motor Windings Resistance
Motor Windings Resistance Table
18
25
Off State
Description
Menus in which can access
5
6
Heater Insulation Shield
Illustration
54
Part number
54, 66
Options Menu
Description
Options
Oven states in which accessible
6
8
6
Hi-Limit Thermostat
See Thermostat – Hi-Limit
I/O Control Board
Description
Illustration
Part number
Replacement instructions
Test point locations
Oscillating Rack
See Rack
39
38, 64
38, 66
39
Oven Door
Description
Part number
49
49, 65
49
64
Serviceable components
Troubleshooting
Impingement Circuit
Description
Serviceable Components
52
53
53
Panels
Display panel (part number)
Side panels (part numbers)
34, 66
34, 66
Installation
2
Jetplates
Part Numbers
Accessory part numbers
Cleaning instructions
Illustration
Part numbers
Removal instructions
66
59-60
55, 60
55, 66
55
Comprehensive list
65-68
Power
Powering down
Powering up
6
6
Keypad
Power Cord
See Display Keypad
Mounting bracket (part number)
Part number
Replacement instructions
67
66
ii
Mechanical Relay
See Relay
Power Supply
Menu
See Recipe Menu
Description
Illustration
39
38
Part number
Replacement instructions
38, 67
39
Motor
See Blower Motor
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SUBJECT INDEX
81
Programming Recipes
Relay
Adjusting the Cook Chamber
Temperature
Checking Recipe Counter
Loading a Menu from a Smart Card
Modifying Recipes
Description
Illustration
Part number
Replacement instructions
39
38
38, 67
39
12
16
14
12-14
14
Saving a Menu to a Smart Card
Safety Instructions
General Safety Information
Grounding Instructions
Power Cord Replacement
Preventing Oven Damage
Reducing Fire Risk
i
ii
ii
ii
i
Rack
Cleaning instructions
Installing
Offset (Accessory) part number
Part number
59-60
3
67
55, 67
Schematic
61
Rack Oscillator Motor
Bracket to which attached
(part number)
Crank (part number)
Description
Serial Number
Description
Entering
41, 65
41, 65
40
29
29
29
Viewing instructions
Illustration
41
Part number
41, 67
40
41, 67
41, 68
Smart Card
Illustration
Loading from
Saving to
Replacement instructions
Retaining ring (part number)
Washer (part number)
15
14
14
Ready to Cook State
Description
Menus in which can access
Smart Card Reader
Description
Illustration
5
6
39
38
Part number
Replacement instructions
38, 68
39
Recipe
See Food Item
Solid State Relay (SSR)
Description
Illustration
Part number
Replacement instructions
Recipe Counter
Description
Viewing instructions
40
38
38, 68
40
16
16
Recipe Menu
Description
Loading from Smart Card
Modifying
Oven states in which accessible
Saving to Smart Card
6
14
12-14
6
Support Rails
Illustration
Part number
Removal instructions
55
55, 68
55
14
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82
SUBJECT INDEX
Status Indicators
Description
Thermostat – Hi-Limit
Description
23
44
44
44, 68
44
Enabling/disabling for all operative
activities (via Diagnostic Mode)
Illustration
Illustration
Part number
Replacement instructions
27
23
Swing Arm Assembly
Accessing
Bushing (part number)
Covers (part numbers)
Description
Time Screen
Description
Enabling/disabling
Options
56
56, 65
65
7
10
7
56
Drag Link (part number)
Illustration
56, 65
56
TurboChef Oven Cleaner
Description
59
Part number
Part number (with Link Bar)
Washer (part number)
56, 68
56, 68
68
Part Number
58, 68
TurboChef Oven Guard
Part Number
68
Temperature Offset
Description
Modification instructions
24
24
Voltage Sensor
Description
2, 45
45
Illustration
Test Mode Menu
Description
Options
Part number
Replacement instructions
45, 68
45
6
23
6
Oven states in which accessible
Warm-up State
Description
5
Thermocouple – Cook Chamber
Description
Illustration
Part number
Replacement instructions
42
42
42, 68
42
Wiring Harness
Line Voltage (part number)
Low Voltage (part number)
68
68
Write Card Function
Description
Enabling/disabling
Thermocouple – Electrical Compartment
Description
Part number
9
9
42
42, 68
42
Replacement instructions
Thermostat Clamp
Illustration
44
Part number
44, 68
Thermostat – Cooling Fan
Description
Illustration
43
43
Part number
Replacement instructions
43, 68
43
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For further information call:
Customer Service at .
Sales and Marketing at .
Headquarters
Operations
International
Six Concourse Parkway
Suite
International Pkwy Schoutlaan
Suite
NL- EA Weert
Atlanta, Georgia
..
..
Carrollton, Texas The Netherlands
..
..
+
+
⁽ ⁾
⁽ ⁾
TM
Accelerating the World of Cooking
Sales & Marketing
.
Customer Service
.
Part Number: HHB-8707/Revision A/June 2005
Country Code: NA
turbochef.com
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