Blodgett BCM-101E Service Manual

GB

Service & Installation Manual

For BCM Electric Oven

“Manual Control”

Table of Contents

Data Plate 3
Installation and connection

-Water connection 4

-Drain connection 5

-Electrical connection/survey of supply lines 6

Start Menu 7

Oven set-up 8
Set –up Mode U 9-10

Test Mode 11

Test Mode D0-D6 12
Test Mode D7-D15 13
Test Mode D16-D20 14
Test Mode D21-D28 15

User Menu 17
User Menu B1-B7 18
User Menu B8-B13 19
User Menu B14-B21 20
User Menu B22-B24 21

Error Codes 22

-Error Code List 23

-Error Codes Guide

Notes 24

Sequence of operation

-Off / On Mode Operation 1

-Hot Air / CombiOptima Operation 2

-Steam / Reheating Operation 3

-Cooling down / Preheat operation 4

Manual Controller

Water level Sensor

BCM Start up Guide

Diagnostic Mode D-Level

Wire Diagram

-Wire Schematic_Diagram 1-8

-Understanding Wire Schematic 2-8

- 2 -

Installation and Connections

Data Plate

When communicating with BLODGETT, we kindly ask
you inform us of the serial number of the oven that is
stated on the approval plate. The approval plate is
located on the right-hand corner post of the oven
cabinet, as shown below.

The BLODGETT Technical Support, whose experience
and expert knowledge are at your disposal, can be
contacted at tel. # [phone] and fax # [phone].

Drain connection

From the factory, the BLODGETT ovens are equipped with
a drain system that removes surplus water from the oven
chamber. This water may be condensed water from the
products, or it may occur when the oven chamber is cooled
down with cold water, or when the oven chamber is cleaned.

Connection
authorised plumber, to an open or to a
closed drain.

It is recommended that a water outlet
is available/established in the floor of
the room where the oven is located.

must

be carried out by an

The drain must never end directly beneath

the oven.

The drain must be of

-resistant material, have a diameter of at least 2” (50mm)
and a fall of at least 3° or 5%.

copper

or an equally temperature

Water Connections

BLODGETT ovens have one or two water connections. Two is most common.

To facilitate cleaning and service, the oven should be connected with an approved flexible ¾” hose
and the permanent installations should be fitted with a stop-tap and a non-return valve.
Before connecting the oven to water, flush the tubes thoroughly. Connect the oven.

Hardness of the water: 80-100 PPM
pH level 7.0-8.0
Total Dissolvable Solids: 100 PPM
Chloride: max. 0 PPM
Sulfate: max. 40 PPM/Gal
Conductivity: min. 75 microsiemens
Water pressure: min. 36 PSI (2.5 bar) dynamic pressure (when CombiClean activated.

When CombiWash not activated: min. 22 PSI (1.5 bar), max. 87 PSI (6
bar).

Water temperature: max. 70°F (20°C)

If the water temperature exceeds 70°F (20°C), problems with regard to ClimaOptima
calibration and cooling of the oven may occur.

The water connection must be carried out by an authorised plumber in accordance
with existing rules and regulations

To ensure that the water quality is in conformity with the above requirements, the
installation of a water filter in front of the water connection to the oven is
recommended.

1) 1 connection for raw water for the condensation jet (cold water). Located at the back.

2) The installation of a particle filter (0.25mm) is also recommended.

3) 1 connection for the steam generator and the jet in the oven chamber. Must meet the
requirements applying to water supplied to household appliances; however, hot water with a
temperature not exceeding 125°F (50°C) can be used. Located at the front.

Electrical Connections

When you connect the oven, you should:

Comply with federal, state and local rules and regulations.

The electrical connection
existing rules and regulations.

An approved plug outlet or a safety cut-out

oven can be disconnected during installation and repair. The safety cut-out must be able to cut
off all poles with a total distance of break of at least 3 mm. Each of the two units in a stacked
arrangement (Combi-Plus) must have its own plug outlet or safety cut-out.

The warranty does not cover incorrect connection.

must

be carried out by an authorised electrician in accordance with

must be located close to the oven so that the

- 4 -

Installation and Connection

Drain connection

From the factory, the BLODGETT ovens are equipped with a drain system that removes surplus water
from the oven chamber. This water may be condensed water from the products, or it may occur
when the oven chamber is cooled down with cold water, or when the oven chamber is cleaned.

Connection
plumber, to an open or to a closed drain.

It is recommended that a water outlet
is available/established in the floor of
the room where the oven is located.

The drain must never end directly beneath

the oven.

The drain must be of
an equally temperature-resistant material, have a
diameter of at least 2” (50 mm) and a fall of at
least 3° or 5%.

must

be carried out by a license

stainless steel, cooper

or

Installation and Connection

Electrical connection/survey of supply lines

The electrical connection
rules and regulations.

The wiring diagram is located in the motor compartment.

The terminal for the electrical connection is located behind the right side plate.

An approved plug outlet or a safety cut-out

oven can be disconnected during installation and repair. The safety cut-out must be able to cut
off all poles with a total distance of break of at least 3 mm. Each of the two units in a stacked
arrangement (CombiPlus) must have its own plug outlet or safety cut-out.

The warranty does not cover incorrect connection.

When you connect the oven, you should:

must

be carried out by an authorised electrician in accordance with existing

must be located close to the oven so that the

• Follow the installation instructions and the information given on the rating plate.

• Comply with federal, state and local rules and regulations.

Checking before Use

The oven should be checked before you start using it.

On the outside

•

Check that the oven has not been damaged in transit (dents, scratches, etc.)

•

Check/adjust the height and check that the oven is placed level (horizontally)

•

Check/adjust oven door

• Connections

•

Check for correct water connection

•

Turn on water supply

•

Check for leaks

•

Turn off water supply

•

Check and clean dirt filter

•

Turn on water supply again

•

Check hand shower

•

Check for correct electrical connection

•

Check connection to drip tray

•

Check for correct mounting of drip tray

•

Check for correct fall of hose from drip tray, and check for leaks

•

Check for correct exhaust and drain connection

•

Clean oven

•

Apply steel oil

• Oven chamber

•

Check that filter housing is mounted correctly

•

Check interior light

•

Clean oven

• Operation panel

•

Check and adjust, if necessary, each of the preset values

•

Heat up the oven at 485°F (250°C) for approx. 5 min.

The installation checklist and the instruction checklist (appendices 1 and 2) should be
filled in and returned to BLODGETT 30 days after the installation, at the latest.

Blodgett Fax # [phone]

- 6 -

Start Menu

Program key

Step key

Alarm key

Start/Stop

Power Switch

Change oven
temperature with
turn switch

Change time with
turn switch

Core temperature
on C and K models.
Injection time on B
model.

PRG

HOT AIR selected if
control lamp on

COMBI STEAMING
selected if upper or
middle control lamp
is on. REHEATING is
selected if lower

control lamp is on

Steaming on C and
K, preheating on B

.

Exhaust open if
control lamp on

Fan speed can be
set between 20 and
100%. Control lamp
is on when speed
< 100.



Set temperature

(press temperature key, temperature flashes, set temperature with turn

switch, press temperature key again to save).



Set time

(press time key, time flashes, set time with turn switch).



Set core temperature

(press core temperature key, set temperature with turn switch).



Set injection time

(press injection key, time flashes, set injection time with turn switch). B

model only.

Turn switch

Oven set-up

Power Switch

Display shows
setting

Not active

Display shows "U"
No.

Display shows
description of "U"
function

Display shows
setting

Confirmation of
special settings

PRG

Press HOT AIR and
STEAMING for 2 sec.

Possible to change to
"d" test mode with
combi steam key

Press STEAMING/
PREHEATING and
HOT AIR for 2 sec.

Not active

Not active

Select "U" settings
with turn switch

Not active

 To enter set-up mode, press hot-air key and steaming/preheating key for 2 sec.

 To leave set-up mode, turn switch to the left. Change between set-up and test mode by

pressing combi-steam key.

 The set-up mode is only intended for service engineers who wish to change the set-up of the

computer control of the oven model in question.

 The program display shows a description of the "U" function in question.

Set-up Mode U

In the set-up function, it is possible to set the oven controller to match the mechanical set-up and
the choice of software.

If the set-up has been changed in U1, U4 or U15, the oven will be reset.

U1 Oven model

You select the oven model (B, C or K) by pressing the step key.
1= K, 2= C, 3= B.
You press the temperature key to select a PassThrough model (two doors).
1= one door (standard) 2= two doors
When you have selected the oven model, confirm by pressing the alarm key if the control lamp
flashes.
After that, the controller initializes.

NOTE: ALL settings and programs are reset.

U2 Oven size

You choose the oven size by pressing the step key: 0-7.0= 1.06, 1= 1.08, 2= 1.10, 3= 1.12, 4=

1.16, 5= 1.20, 6= 2.10, 7= 2.14.

The oven size you have chosen is shown in the field next to the temperature key.

U3 CombiWash

You activate or deactivate CombiClean by pressing the step key.
0=OFF, 1=ON.

U4 Temperature scale

You choose between Celsius and Fahrenheit as scale of temperature by pressing the step key.
0= Celsius 1= Fahrenheit.
You can ”even out” the current temperature by pressing the temperature key.
0=OFF, 1=ON
When you have chosen the temperature scale, confirm by pressing the alarm key if the control lamp
flashes.
After that, the controller initializes.

NOTE: ALL settings and programs are reset.

U5 Not in use

U6 Low-temperature steaming

You activate and deactivate low-temperature steaming by pressing the step key.
0= OFF, steaming only possible at 100°C, 1= ON, steaming only possible between 30°C and 120°C.

NOTE: This function is available on K models only. If chosen on a B or C model, nothing
happens.

U7 Preheating at 300°C

You activate and deactivate preheating by pressing the step key.
0= OFF, 1= ON.

NOTE: Preheating at temperatures above 250°C is only possible for max. 15 minutes.

U8 Setting water level sensor

When you press the temperature key, the water level value starts flashing and can then be set
between 40 and 80 (default 70).
If the conductivity of the water is low, set the water level higher.

U9 Automatic restart

You activate and deactivate automatic restart by pressing the step key.
0= OFF, 1= 10 minutes, 2= 30 minutes, 3= 60 minutes.
This means that if there is a power cut, the program that was interrupted will be reassumed provided
that the power returns within the time set.

- 9 -

U10 Programs

You activate the program mode by pressing the step key.
0= OFF, 1= 10 programs with 3 process steps.

NOTE: It is still possible to activate the cleaning program even though the program mode
is not active.
0= OFF.

U11 Core temperature probe

You activate and deactivate the core temperature probe by pressing the step key.
0= OFF, 1= ON.

U12 Drain cooling

You activate and deactivate drain cooling by pressing the step key.
0= OFF, 1= ON.

U13 Timer start

You activate or deactivate timer start by pressing the step key.
0= OFF, 1= ON.

U14 Demo

You activate or deactivate the demo mode by pressing the step key.
0= OFF, 1= ON.

NOTE: If the demo mode is on (1= ON), the oven will run without heating elements and
steam generator being switched on.
When the oven starts, it will let you know whether the demo mode is on.

U15 Initialising

You reset the controller by pressing the alarm key.

- 10 -

Power Switch

Display shows
setting

Display shows
setting

Test Mode

For test mode, press
HOT AIR and COMBI
STEAMING for 2 sec.

For test mode, press
COMBI STEAMING and
HOT AIR for 2 sec.

Display shows "d"
No.

Possible to change to
"U" setting by pressing
STEAMING/PRE­HEATING

Display shows a
description of the
"d" function

PRG

Not active

Display indicates
whether the
function is active

Not active

Activates each
function briefly

Possible to choose a
"d" function with turn
switch

Not active

 To enter test mode, press hot-air key and combi-steam key for 2 sec.

 To exit test mode, turn switch left. Change between set-up mode and test mode by pressing

steaming/preheating key.

 How to operate the selected component: You turn the component on (1) and off (2) by pressing

the step key. Or, you press the alarm key, and the component is active for as long as you press
the key.

 The set-up mode is only intended for service engineers who wish to test the various

modes/functions.

Test Mode D0-D6

In the test mode, it is possible to activate all electrical components. This is very useful in connection
with fault detection and the testing and adjusting of replacement parts.

D0 Main contactor(s)

This function activates contactor K1.
You activate or deactivate the function by pressing the step key. The function can, however, only be
activated when the fan is on.
To pulse, press the alarm key.
0= OFF, 1= ON.
Status for the main alarms appear in the display as follows:
Digit 1 fan
Digit 2 oven
Digit 3 generator
Digit 4 Solid State Relay
If ER28 appears, the alarm sensor circuit board or wiring harness is defective.

D1 Oven heat

This function activates contactor K2.
You activate or deactivate the function by pressing the step key.
Humidity pulsing is possible by pressing the alarm key.
0= OFF, 1= ON.

D2 Steam generator heat

Available on K models only
This function activates contactor K3.
You activate or deactivate the function by pressing the step key. However, this function can only be
activated when there is water in the steam generator.
To pulse, press the alarm key.
0= OFF, 1= ON.

D3 Fan, right-hand, high/low

This function activates the frequency exchanger.
You can test the speed of the motor by pressing the step key.
0= OFF, 2= ON
By pressing the time key, it is possible to adjust the speed of the motor from 0 to 100%.
The RPM appears in the temperature display.

Note: The main contactor K1 must be active for this function to work, as the frequency
transformer is connected via K1

D4 Fan, left-hand, high/low

This function activates the frequency exchanger.
You can test the speed of the motor by pressing the step key.
0= OFF, 2= ON
By pressing the time key, it is possible to adjust the speed of the motor from 0 to 100%.
The RPM appears in the temperature display.

Note: The main contactor K1 must be active for this function to work, as the frequency
transformer is connected via K1

D6 Solenoid valve

This function activates solenoid valve MV1.
You activate or deactivate the function by pressing the step key
To pulse, press the alarm key.
0= OFF, 1= ON.

- 12 -

Test Mode D7-D15

D7 Filling valve
Available on K models only.

This function activates solenoid valve MV2.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key. 0= OFF, 1= ON.

D8 Drain pump
Available on K models only.

This function activates motor M2.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key. 0= OFF, 1= ON.

D9 Drain cooling
This function is not available on B models.

This function activates solenoid valve MV3.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key. 0= OFF, 1= ON.

D10 Damper motor

This function activates motor M3.
In the display next to ”Time”, it is possible to read the status of the damper motor switch.
OFF= damper open, ON= damper closed.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key. 0= OFF, 1= ON.

D11 Exhaust

This function activates the outlet for controlling the external ventilation, terminals 4 and 5.
In the display next to ”Time”, it is possible to read which outlet is active.
OFOF= both outlets are off, ONOF= outlet 4 is active and outlet 5 is off.
OFON= outlet 4 is off and outlet 5 is active. ONON= both outlets are active.
You activate or deactivate the function by pressing the step key.
0= OFOF, 1= OFON, 2= ONOF, 3= ONON.

D12 Cooling fan

This function activates motors M7 and M7A.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key.
0= OFF, 1= ON.

D14 Interior light

This function activates H1.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key.
0= OFF, 1= ON.

D15 Oven temperature

Here it is possible to read the current oven temperature, P1.
In the field next to ”Temperature”, the current temperature is shown. If ERR appears, the sensor
circuit is defective.
In the field next to ”Time”, an adjustment value between 80 and 120 (default 100) is shown.
To adjust the temperature, press the time key until the digit in the display flashes. Then adjust
upwards or downwards until the correct temperature is shown. Finally, press the time key again to
save the setting.
The temperature can be adjusted by +- 50°F (10°C).

- 13 -

Test Mode D16-D20

D16 Core temperature
This function is not available on B models.
C and K models can use only one core temperature probe, it is possible, however, to test
core temperature probes 1 and 2.

Here it is possible to read the current temperature of the core temperature sensor, P2 + P2A.
In the field next to ”Temperature”, the current temperature is shown. If ERR appears, the sensor
circuit is defective.
In the field next to ”Time”, an adjustment value between 80 and 120 (default 100) is shown.
To adjust the temperature, press the time key until the digit in the display flashes. Then adjust
upwards or downwards until the correct temperature is shown. Finally, press the time key again to
save the setting.
The temperature can be adjusted by +- 50°F (10°C).
You change between the various measuring points of the core temperature probe by pressing the
step key.
1= Core temp probe 1, point 1, 2= Core temp probe, point 2, 3= Core temp probe 1, point 3.
4= Core temp probe 2, point 1, 5= Core temp probe, point 2, 6= Core temp probe 2, point 3.

D17 Steam generator temperature
Available on K models only.

Here it is possible to read the current steam generator temperature, P3.
In the field next to ”Temperature”, the current temperature is shown. If ERR appears, the sensor
circuit is defective.
In the field next to ”Time”, an adjustment value between 80 and 120 (default 100) is shown.
To adjust the temperature, press the time key until the digit in the display flashes. Then adjust
upwards or downwards until the correct temperature is shown. Finally, press the time key again to
save the setting.
The temperature can be adjusted by +- 50°F (10°C).

D18 Drain temperature

Here it is possible to read the current steam generator temperature, P4.
In the field next to ”Temperature”, the current temperature is shown. If ERR appears, the sensor
circuit is defective.
In the field next to ”Time”, an adjustment value between 80 and 120 (default 100) is shown.
To adjust the temperature, press the time key until the digit in the display flashes. Then adjust
upwards or downwards until the correct temperature is shown. Finally, press the time key again to
save the setting.
The temperature can be adjusted by +- 50°F (10°C) (approx. 2°F (.5°C) per step).

D20 Door sensor

Here it is possible to read the status of and calibrate door sensor 1 = SE1 and 2 = SE1A.
You change between door sensor 1 and 2 by pressing the step key.
After some time, the text “DOOR SENSOR” changes to show the status of the sensor: >CLOSED<,
>OPEN<, >SENS ERROR<. You start the calibration by pressing the exhaust key.
How to calibrate:

1. Press the damper key

2. >CLOSE< flashes

3. Close the door

4. Press the damper key

5. >OPEN< flashes

6. Open door in the first step

7. Press the damper key

8. >CALIB OK< or >CALIB ERR< appears

9. Press the damper key to confirm

In the display next to the temperature key, it is possible to read the current value (0 – 120).
In the display next to the time key, it is possible to read the set point.

- 14 -

Test Functions D21-28

D21 Water level
Available on K models only.

Here it is possible to read the status of SE2.
In the display next to ”Time”, the conductivity is shown and it is indicated whether the water level is
high or low
XX|LO= low water level, XX|HI= high water level.
XX = conductivity of the water.
Default setting is approx. 80 with no water and 40.60 with water. The better the conductivity, the
lower the measured value.

D22 Thermo-switch oven

Here it is possible to read the status of Q1 and Q1A.
In the display next to ”Time”, it is shown whether the circuit is connected or disconnected.
OF= disconnected ON= connected.
In the event of defects, it is possible to reset thermo-switches Q1 and Q2 that are located at the
bottom of the oven below the operation panel.

Note: Q2 is only found in ovens with 2 fan motors (1.16 and 1.20). Q1 and Q1A are series
connected which is why there is only one input signal.

D23 Thermo-switch fan

Here it is possible to read the status of S2 and S2A
In the display next to ”Time”, it is shown whether the circuit is connected or disconnected.
OF= disconnected ON= connected.
In the event of defects, wait for 10 – 20 minutes, then try again.

Note: Q2 is only found in ovens with 2 fan motors (1.16 and 1.20). S1 and S1A each have
their own input on the IO board hence 2 x status (On On / OFF OF / On OF / OF On).

D24 Damper switch

Here it is possible to read the status of M3.
In the display next to ”Time”, it is possible to read the status of the damper motor switch.
OF= damper open, ON= damper closed.

D27 Pump for detergent
Only possible on ovens with CombiWash

This function activates pump M5.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key.
0= OFF, 1= ON.

D28 Pump for rinse aid
Only possible on ovens with CombiWash

This function activates pump M6.
You activate or deactivate the function by pressing the step key.
To pulse, press the alarm key.
0= OFF, 1= ON.

- 15 -