Convection Ovens
Model BXC Smartbake
4-Tray & 10-Tray
Belshaw Bros., Inc.
1750 22nd Ave. S.
Seattle, WA 98144
Phone: 206-322-5474 š Fax: 206-322-5425
Toll Free: 1-800-578-2547
E-mail: service@belshaw.com
If you accept the machine from the shipping
company, you are, in effect, saying that the
machine is in good condition, and you must pay
for the machine. Belshaw cannot pay for
shipping damage, because the freight company
has accepted the machine from Belshaw in good
condition, and is responsible for its safe delivery.
For your protection, inspect the machine to see
that no parts are bent, scratched, or otherwise
damaged. If any damage has occurred in
shipping, file a freight claim with the shipping
company immediately.
WARNING
Keep this manual available at all times for
use.
EQUIPMENT RECORD
Please provide the information below when you correspond with us about your machine.
Purchased by _____________________________________________________________________
Installed by ______________________________________________________________________
Date of Installation ________________________________________________________________
Model number ___________________________________________________________________
Serial number
1004
MN-1881EN
Belshaw Bros., Inc.
1750 22nd Ave. S.
Seattle, WA 98144
Phone: 206-322-5474 š Fax: 206-322-5425
Toll Free: 1-800-578-2547
Contents
Sections
1
Installation
1
1
1
2
2
3
Unpacking the oven
Dimensions and Specifications
Installation
Initial Cleaning
Programming the control panel
2
Operation
5
5
Operating conditions
Operating using programmed settings
5
3
Cleaning and Maintenance
7
7
7
8
8
Daily cleaning
Weekly cleaning
Maintenance
Lubrication
4
Troubleshooting
10
11
Troubleshooting Fault Analysis
5
Diagrams
33
Limited Warranty
Insert
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
iii
Preface
The Belshaw BX Smartbake convection oven is a
computerized, compact, electric oven with a
capacity for either four or 10 trays. Each tray is
26” x 18”.
š Electrical access panels must not be opened
unless the main supply to the oven is
isolated.
š Any chimneys or ducts fitted above the ovens
The convection oven is made of stainless steel
and is fitted with a removable tray rack, allowing
easy cleaning of its internal surfaces.
should be insulated.
š All connections must be made in accordance
with the regulations of the country where the
oven is installed.
The 4-tray oven is designed to be stackable
without separate support, allowing the system to
grow with your business without taking up a
large area.
š Do not touch the oven, its windows, or
immediate surroundings during or shortly
after use, as these surfaces may be hot.
The 10-tray oven is equipped with an integral,
energy efficient steam system. A double glazed
door also helps to increase energy efficiency, and
the oven base is supplied with locking castors.
š Use only Belshaw parts in this oven.
š Do not change the construction of this oven.
š The owner of the oven is legally obligated to
instruct staff using the oven in its operation
and in these safety regulations. The
instructions must stay in the oven’s working
area.
The high-speed fan and ring element provides
efficient air circulation, helping produce a range
of high-quality products.
To help ensure safe and efficient operation of the
oven, the operator must work safely at all times,
read this manual, and follow its instructions and
warnings. A thorough understanding of how to
install, maintain, and safely operate the
convection oven will help prevent production
delays and injuries.
š This oven uses a steam generator. Hard
water must be properly treated before use.
To use the convection oven safely, heed the
following warnings and all other warnings that
appear in this manual.
š Use the oven only for baking bread,
confectionery, and savory products. Do not
use for any other items without consulting
Belshaw.
š All repairs and maintenance of electrical
units must be done by authorized electricians.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
iv
MN-1881EN
BXC Smartbake Oven
Installation
1
4. Inspect the machine to see that no parts have
been damaged during shipping. If any
damage has occurred, file a freight claim
with the shipping company immediately.
Unpacking the oven
1. Move the crate containing the oven to the
workstation.
2. Remove the machine from the shipping crate,
being careful not to lose, loosen or damage
any parts.
IMPORTANT
Keep this manual available for future
reference.
3. Remove all packing materials from the
machine.
Dimensions and Specifications
2618 4 tray oven
2618 10 tray oven
Height
21 inches
44 inches
33.5 inches
74 inches
Depth, door closed, including
handle
53.5 inches
33.5 inches
Width
Operational clearance*
2” back and sides, 10” top
2” back and sides, 10” top
17 kW
Total power
Electric
7. 5 kW
208 V, 3-phase + N + E, 60Hz,
fused at 35A
208 V, 3-phase +N + E, 60Hz,
fused at 58A
Supply cable
Loading
6 feet of cable provided
7 kW concentric ring element
Direct to motor
26” x 18”
6 feet of cable provided
16 kW (2 - 8 kW concentric
ring elements)
Fan drive
Tray size
Direct to motor
26” x 18”
Tray capacity
4
5, 9, or 10
Butterfly type
Damper
Butterfly type
Noise level
Less than 85 dB
Less than 85 dB
* Operational clearance is the amount of space required at the back, sides, and top of the oven to allow
adequate air circulation.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
1
IMPORTANT
Water Supply
When cleaning the inside of the 4-tray
oven, be careful not to damage the control
probe protruding from the upper corner of
the chamber’s rear wall.
š The BX Smartbake oven is fitted with a
steam generator. In areas with hard water,
the water supply to the oven must be treated
with an appropriate protecting water
treatment device. It is the sole responsibility
of the customer to provide and maintain an
appropriate water treatment system.
WARNING
š For stacked ovens, the water supply should
be shut off by closing the shut-off valves.
(See Figure 1-1)
Do not allow water to enter the control
panel or rear access panel.
š For non-stacked ovens, the water supply
should be shut off at the nearest shut-off
point.
The BX Smartbake oven needs the following for
the water supply:
š ¾” BSP female thread on the oven.
š 3 foot-long hose with ¾” B.S.P. female
fittings at both ends (included)
š Inline backflow valve (customer must
provide and fit)
š 15-60 p.s.i. water pressure
Installation
The BX oven should be connected to a local
means of isolation.
š To stop the oven in an emergency, switch off
at the wall isolator.
Figure 1-1. Turning off the water supply.
Initial Cleaning
Carefully wipe the interior of the oven and all
accessories with a clean cloth soaked in warm
soapy water and allow the oven to dry
completely.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
2
MN-1881EN
BXC Smartbake Oven
Programming the control
panel
The BX Smartbake oven is capable of storing 99
preset bake settings. To program these settings
into the oven, follow these instructions.
1. Press the Stop button to get to the first screen
(see Figure 1-2).
Figure 1-4
4. Press button 1 for full bake set-up or button 4
for ½ bake set-up. All parameters for the
program can now be set.
5. The oven is capable of six different phases
per bake, and if fewer are required, the time
can be left at 0 to leave that phase
inoperative.
š To move across the screen, press button
Figure 1-2
4.
2. Press button 2 for the pass code screen (see
Figure 1-3).
š To move back, press button 1.
š To increase the value of the parameter,
press button 3.
š To decrease the value of the parameter,
press button 2.
6. Program Title: To set the program title,
press button 6 to go up the alphabet and
button 5 to go down the alphabet.
When all parameters are complete, press Stop
three times to save the setting. Repeat this
process for each program required.
Figure 1-3
3. Enter the pass code using the numbered
buttons (default is 111111). The following
screen will appear (see Figure 1-4).
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
3
Note: The heating elements are off during the
Fan Dwell time.
Function of settings:
Power Levels: Not used in current
Damper Delay: The amount of time in minutes
the damper will wait before opening during
one bake cycle.
configuration.
Temperature: The temperature the oven will
bake at for the specified phase. Can be set
from 122“ F to 482“ F (50“ C to 250“ C)
Note:
š Can be set from 0 to 99.
Bake Duration: The length of time in minutes
the oven will bake in the specified phase.
For example, Phase 1 set at 2 min., Phase 2
set at 4 min., and Phase 3 set at 10 min. has a
total bake time of 16 minutes.
š If this time is set higher than the total
bake time, the damper will not open.
š The damper will only open once during
a complete bake cycle and will close at
the end of the bake cycle.
Steam Duration: The length of time in seconds
that steam will be injected into the oven at
the beginning of the phase.
Note: Can be set from 0 to 20 seconds and
will only operate if the temperature is above
250“ F (120“ C).
Fan Cycles: The number of times the fan will
reverse rotation from clockwise to
counterclockwise and back.
Note: Can be set from 0 to 9. Do not set the
fan cycles number higher than 1 cycle per
minute of bake time.
Fan Dwell: The amount of time in seconds that
the fan will stay off during a rotation change.
Note: Can be set from 8 to 15.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
4
MN-1881EN
BXC Smartbake Oven
Operation
2
4. Press Button 4 (which corresponds to the
Operating conditions
For the most efficient operation, the following
instructions must be followed. Failure to comply
with these guidelines may affect the warranty.
“select product” option in Figure 2-1) and the
program list will appear (Figure 2-2). If the
oven has not been programmed, see the
section on programming on page 3.
š The ambient temperature around the oven
must not exceed 115“ F (40“ C).
š The ventilation around the oven should be
enough to ensure that there is no
condensation on or around the oven from
steam.
š It is the customer’s responsibility to arrange
for adequate ventilation and operational
clearance at the back and sides of the oven to
allow circulation of air.
Figure 2-2
Running Pre-set programs
1. Connect water ensuring there are no leaks.
2. Connect the power to a suitable outlet.
5. Highlight the desired program by pressing
buttons 2, 3, 5, or 6 to scroll down, up, 10
down, or 10 up, respectively.
6. Start heating the oven by pressing button 4
for a ½ load bake or button 1 for a full load
bake. The following screen will appear
(Figure 2-3). To stop heating, press the
stop/Back button at any time.
3. Turn on the oven by pressing the green
button and the following screen will appear
(Figure 2-1):
Figure 2-1
Figure 2-3
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
5
WARNING
Stand clear of the oven door when opening
to avoid the hot steam and vapor. Hot
steam or vapor may cause severe burns.
WARNING
Always preheat the oven to required
temperature. Do not place product directly
into a cold oven.
Figure 2-5
9. Upon pressing the Stop button, the screen
will revert to the program screen (Figure 2-
2).
7. When the oven is ready, the following screen
will appear (Figure 2-4). Load the product
and press the button corresponding to the
Start option (button 4).
10. To bake in a preheated oven, select a new
program with keys 2 and 3. Then follow
instructions 6-8.
NOTE
During heating, button 1 can be pressed at
any time to check the settings. Press button
1 again or wait 10 seconds to return to the
previous screen.
NOTE
Figure 2-4
Until the oven is up to the target
temperature, the display will show
“Heating;” then the display will show
“Ready” and the oven will stay at the
target temperature until baking starts or
another program is selected.
8. When the bake time is over, the buzzer will
sound and the screen will read “Bake Over”
(Figure 2-5). Press stop and remove the
product or press button 4 to extend the bake
time by two minutes. The Stop button may
be pressed at any time to stop the bake.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
6
MN-1881EN
BXC Smartbake Oven
Cleaning and Maintenance 3
4. Open the oven door and remove the internal
racking from the sides of the oven by lifting
and unlatching the racking. Wipe the interior
of the oven with a damp cloth.
Daily Cleaning
1. Disconnect the oven from main power supply
and allow to cool completely before cleaning.
5. On the BX-4, open the inner door glass by
removing two screws shown in Figure 3-1.
The glass is hinged to allow a more thorough
cleaning.
2. Use only approved chloride-free cleaning
fluid for daily cleaning.
3. Sweep any debris (after the oven has been
allowed to cool) onto removable oven trays
and remove for cleaning.
4. Brush down and wipe oven front, back, and
sides.
5. Carefully clean the oven with a damp cloth
that has been soaked in a solution of mild
detergent and hot water, being extra careful
around control switches. In the 4-tray oven,
be sure the control probe protruding from the
upper rear corner inside the oven is not
damaged (see page 9).
6. Do not let any liquid enter the control panel
or rear access panel.
7. Do not remove the rear paneling inside the
oven. This allows access to the fan
assembly, which is not safety interlocked and
could cause injury.
Figure 3-1. Removing the inner door glass
(BX-4 only).
8. Dry completely.
6. Clean the glass with a suitable glass cleaner.
7. Wipe down the oven and clean the racking
with a damp cloth.
Weekly Cleaning
1. Complete the daily cleaning.
8. Reassemble all parts back in the oven after
cleaning.
2. Carefully clean off any burnt-on debris using
an appropriate oven cleaner, following the
manufacturer’s instructions. Do not allow
the oven cleaner to get in the control panel.
3. Scrub the cabinet wheels (if fitted) with a
mild detergent and hot water, using a nylon
cleaning brush.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
7
š If the steaming operation deteriorates, clean
the pipe aperture with a pin to remove any
build-up.
WARNING
In the 4-tray oven, do not damage the
control probe protruding from the upper
corner of the inside rear wall of the oven
chamber.
Lubrication
This machine does not require special
lubrication.
WARNING
Make sure water does not enter the control
panel or rear access panel.
WARNING
Do not remove the rear paneling inside the
oven. This allows access to the fan
assembly and could cause injury.
Maintenance
š Check for frayed or bare cables. The
machine must not be used if there are frayed
or bare cables.
š Follow cleaning instructions exactly.
š Check condition of the rubber door seal.
Repair or replace if necessary.
š If the light bulb burns out, use the following
instructions to replace it.
a. Disconnect the oven from the main power
supply and allow to cool.
b. Remove the glass front from the lamp
unit.
c. Remove the bulb by unscrewing
counterclockwise and replace with a new
bulb.
d. Refit the glass front.
e. Reconnect the oven to the main power
supply and test the lights.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
8
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
9
Troubleshooting
4
The following pages contain troubleshooting/
fault analysis charts for the Classic convection
oven.
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
10
MN-1881EN
BXC Smartbake Oven
Diagrams
5
This section contains diagrams detailing the
electrical components of the 4-tray and 10-tray
BXC convection ovens.
4-tray BXC Oven (starts on page 34)
ƒ Electrical Components, M189E25-01000
ƒ PCB Connections, M158E25-21000
ƒ PCB Outputs, M189E25-01100
ƒ Power Circuit Diagram, M189E25-00100
ƒ Control Circuit & 24V DC Power Supply,
M189E25-00400
ƒ Fan Motor Connections & Heating Element
Wiring, M189E25-00500
10-tray BXC Oven (starts on page 40)
ƒ Electrical Components, M150E25-55000
ƒ Main Control Panel Layout, M150E25-20200
ƒ PCB Connections, M150E25-51400
ƒ PCB Outputs, M150E25-20400
ƒ Interior Light & Power Supply Circuit,
M150E25-20500
ƒ Motor Power Circuit Diagram,
M150E25-20600
ƒ Heating Power Circuit Diagram,
M150E25-20700
ƒ Fan Motor Connections & Heating Element
Wiring, M150E25-20300
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
33
Belshaw Bros., Inc. š 1750 22Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
34
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
35
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
36
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
37
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
38
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
39
Belshaw Bros., Inc. š 1750 22Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
40
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
41
Belshaw Bros., Inc. š 1750 22Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
42
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
43
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
44
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
45
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
46
MN-1881EN
BXC Smartbake Oven
Belshaw Bros., Inc. š 1750 22nd Ave. S. š Seattle, WA 98144 š Phone 206-322-5474 š Fax 206-322-
5425
BXC Smartbake Oven
MN-1881EN
47
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