Belshaw Brothers BX Classic 10-Tray, BX Classic 4-Tray User Manual

Convection Ovens

Model BX ‘Classic’

4-Tray & 10-Tray

Belshaw Bros., Inc.

1750 22nd Ave. S.

Seattle, WA 98144

Phone: [phone]  Fax: [phone]

Toll Free: 1-800-578-2547

E-mail: [e-mail]  http://www.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

WARNING

for the machine. Belshaw cannot pay for
shipping damage, because the freight company
has accepted the machine from Belshaw in good

Keep this manual available at all times for

use.

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.

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-1876EN

Belshaw Bros., Inc.

nd

1750 22

Ave. S.

Seattle, WA 98144

Phone: [phone]  Fax: [phone]

Toll Free: 1-800-578-2547

E-mail: [e-mail]  http://www.belshaw.com

Contents

Sections

1 Installation 1

Unpacking the oven 1
Dimensions and Specifications 1
Installation 2
Initial Cleaning 2
Programming the control panel 3

2 Operation 5

Operating conditions 5
Operating using programmed settings 5

3 Cleaning and Maintenance 6

Daily cleaning 6
Weekly cleaning 6
Maintenance 7
Lubrication 7

4 Troubleshooting 9

Troubleshooting Oven 9

5 Diagrams 31
Limited Warranty Insert

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

BX Classic Oven MN-1876EN iii

Preface

The Belshaw BX convection oven is a
computerized, compact, electric oven with a
capacity for either four or 10 trays. Each tray is
26” x 18”.

The convection oven is made of stainless steel
and is fitted with a removable tray rack, allowing
easy cleaning of its internal surfaces.

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.

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.

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.

 Electrical access panels must not be opened

unless the main supply to the oven is
isolated.

 All connections must be made in accordance

with the regulations of the country where the
oven is installed.

 Do not touch the oven, its windows, or

immediate surroundings during or shortly
after use, as these surfaces may be hot.

 Use only Belshaw parts in this oven.
 Do not change the construction of this oven.
 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.

 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.

 Use the oven only for baking bread,

confectionery, and savory products. Do not
use for any other items without consulting
Belshaw.

 All repairs and maintenance of electrical

units must be done by authorized electricians.

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

iv MN-1876EN BX Classic Oven

Installation 1

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.

3. Remove all packing materials from the

machine.

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.

IMPORTANT

Keep this manual available for future

reference.

Dimensions and Specifications

2618 4 tray oven 2618 10 tray oven
Height

Depth, door closed, including
handle

Width
Operational clearance*

21 inches 74 inches

44 inches 53.5 inches

33.5 inches 33.5 inches
2” back and sides, 10” top

2” back and sides, 10” top

Total power
Electric
Supply cable
Loading
Fan drive
Tray size
Tray capacity
Damper

Noise level

* 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.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

BX Classic Oven MN-1876EN 1

7.25 kW 17 kW
208 V, 3-phase + N + E, 60Hz,

fused at 35A
6 feet of cable provided 6 feet of cable provided

7 kW concentric ring element

Direct to motor Direct to motor
26” x 18” 26” x 18”
4 5, 9, or 10
Butterfly type

Less than 85 dB Less than 85 dB

208 V, 3-phase +N + E, 60Hz,
fused at 58A

16 kW (2 - 8 kW concentric
ring elements)

Butterfly type

Water Supply

 The BX 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.

 For stacked ovens, the water supply should

be shut off by closing the shut-off valves.
(See Figure 1-1)

 For non-stacked ovens, the water supply

should be shut off at the nearest shut-off
point.

The BX oven needs the following for the water
supply:

 ¾” BSP female thread on the oven.
 3 foot-long hose with ¾” B.S.P. female

fittings at both ends (included)

IMPORTANT

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.

WARNING

Do not allow water to enter the control

panel or rear access panel.

 Inline backflow valve (customer must

provide and fit)

 15-60 p.s.i. water pressure

Installation

The BX oven should be connected to a local
means of isolation.

 To stop the oven in an emergency, switch off

at the wall isolator.

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.

Figure 1-1. Turning off the water supply.

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

2 MN-1876EN BX Classic Oven

Programming the control
panel

Pre-set values for bake temperatures, bake time,
steam and damper may be modified at any time.
Numbers in parentheses reference numbers in Figure
1-2.

To change the program values:

1. Press the up and down arrow keys (2) to select the

program you wish to change.

2. Press the key next to the value you wish to change

(i.e. temperature or time) (6-9). A selection
indicator will flash in the right hand side of the
selected window. Use the up/down arrow keys to
modify the value.

3. The program can be run using these values as a

temporary setting, or the setting changes can be
saved. If the program changes are not saved, the
settings will revert back to the original settings the
next time the program is selected.

4. To save the changes, press and hold the P key (5).

All displayed values will flash and the controller
will beep to indicate the program has been saved.
After the controller has beeped, release the P key.

Key 9: Temperature. This is the

temperature at which the oven will
bake the product. Temperature can

be set from 122 F to 482 F (50 C
to 250 C).

Fan Cycle Setting

1. Press the P key (5) and the Stop key (4)

at the same time, and hold for five
seconds. The display will show “FAN
00” if the fan is currently disabled or
“FAN 01” if the fan is currently enabled.

2. Use the up/down arrow keys to select

the fan setting.

Note: The default setting for the fan is
"fan cycling disabled."

Note: In a 4-tray oven, the fan is only
functional in an oven wired for 3-phase.
If activated in a 1-phase oven, the fan will
automatically stop.

Note: Programs cannot be saved during a bake
cycle.

Function of Setting

Key 6: Vent Time. This is the number of minutes at

which the vent will wait to open during the
bake cycle.

Note: This time cannot exceed the bake time.

Key 7: Steam Time. This is the amount of time the

steam will inject at the beginning of the bake.
Time can be set from 1-15 seconds.

Note: The oven must be above 257 F (125 C)
before the steam will inject.

Key 8: Bake Time. This is the amount of time the

product will bake. Time can be set from 1-99
minutes.

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

BX Classic Oven MN-1876EN 3

Figure 1-2. ‘Classic’ oven control panel.

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

4 MN-1876EN BX Classic Oven

Operation 2

Operating conditions

For the most efficient operation, the following
instructions must be followed. Failure to comply
with these guidelines may affect the warranty.

 The ambient temperature around the oven

must not exceed 115 F (40 C).

 The ventilation around the oven should be

enough to ensure that there is no
condensation on or around the oven from
steam.

 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.

Running Pre-set programs

1. Turn on the power by pressing the green

power button and make sure the oven door is
completely closed.

2. Select the desired program using the

UP/DOWN arrow buttons.

3. Press the START button to preheat the oven,

beginning the bake cycle. The oven will heat
to the set temperature and the display will
flash the actual temperature. When the set
temperature is reached, the display will stop
flashing and the oven is preheated.

4. Load the product and close the door.

 Steam time (if applicable) in seconds. If

the actual temperature is less than the
minimum steam temperature (257 F,
125 C), “--” will be displayed. This
indicates that the steaming function is

disabled.

 Time in minutes the damper is open
 Program number alternating with the

spinning bake cycle indicator

6. Press STOP when bake oven alarm sounds or

when the product is done. If additional
baking time is required, do not press stop.
To add time, select the bake time and
increase it.

 Note: Pressing the TIME button will

automatically extend the bake time to the
next whole minute. For example, if there
is 1 min. 20 sec. Remaining on the clock,
pressing the TIME button will extend the
time to 2 minutes. This allows one to
extend the bake time up to one minute
with a single press of a button.

WARNING

Stand clear of the oven door when opening

to avoid the hot steam and vapor. Hot

steam or vapor may cause severe burns.

5. Press START. The display will show the

following information:

 Actual temperature
 Remaining bake time in minutes and,

during the last minute, in seconds.

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

BX Classic Oven MN-1876EN 5

WARNING

Always preheat the oven to required

temperature. Do not place product directly

into a cold oven.

Cleaning and Maintenance 3

Daily Cleaning

1. Disconnect the oven from main power supply

and allow to cool completely before cleaning.

2. Use only approved chloride-free cleaning

fluid for daily cleaning.

3. Carefully clean the oven, being sure to not

damage the control probe in the upper corner
of the rear wall inside the chamber.

4. Do not let any liquid enter the control panel

or rear access panel.

5. Dry completely.

Weekly Cleaning

1. Complete the daily 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.

4. Open the oven door and remove the internal

racking from the sides of the oven by lifting
and unlatching the racking. Wipe out the
interior with a damp cloth.

5. Open the inner door glass by removing two

screws shown in Figure 3-1. The glass is
hinged to allow a more thorough cleaning
(BX-4 only).

Figure 3-1. Removing the inner door glass

(BX-4 only).

6. Clean the glass with a suitable glass cleaner.

7. Wipe down the oven and clean the racking

with a damp cloth.

8. Reassemble all parts back in the oven after

cleaning.

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.

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

6 MN-1876EN BX Classic Oven

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

 Check for frayed or bare cables. The

machine must not be used if there are frayed
or bare cables.

 Follow cleaning instructions exactly.
 Check condition of the rubber door seal.

Repair or replace if necessary.

 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.

 If the steaming operation deteriorates, clean

the pipe aperture with a pin to remove any
build-up.

Lubrication

This machine does not require special
lubrication.

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

BX Classic Oven MN-1876EN 7

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

8 MN-1876EN BX Classic Oven

Troubleshooting 4

The following pages contain troubleshooting/
fault analysis charts for the Classic convection
oven.

Error Codes for the BX Classic Oven

Code Possible Causes What To Do

E01 Bake Data written to non-volatile

(EEPROM) was not correctly verified
as part of error checking.

E02 System read an out-of-range

temperature value when retrieving bake
data from EEPROM.

E03 Thermocouple open circuit Thermocouple or thermocouple wiring is

EEPROM memory is integrated onto the
microcontroller so this should be unlikely.

Replace the controller.

Any value above 250 C will cause this
error. Indicated corruption of data.

Reset back temperature to below
480 F/250 C.

bad.
Check the thermocouple wiring. Replace

as necessary

Belshaw Bros., Inc.  1750 22nd Ave. S.  Seattle, WA 98144  Phone [phone]  Fax 206-322­5425

BX Classic Oven MN-1876EN 9