Blodgett BCX-14G Service Manual

COMBI

BCX

COMBINATION OVEN STEAMER

TROUBLESHOOTING MANUAL

14G AND BX14G

BLODGETT COMBI

www.blodgett.com

44 Lakeside Avenue, Burlington, Vermont 05402 USA ~ Tel. [phone] Fax [phone]

PN

52051 Rev B (12/15/2010)

TABLE OF CONTENTS

Section 1 Controls

Manual Control Operation………………………………………………………………1-3

Manual Control Second Level Programming……………………………………………..4
New Manual Control Operation………………………………………………………...5-7

New Manual Control Second Level Programming……………………………………..8-9
New Manual Control Factory Level Programming…………………………………..10-11
MenuSelect Control Operation……………………………………………………….12-15
MenuSelect Control Second Level Programming……………………………………16-17

Notes……………………………………………………………………………………..18

Section 2 Troubleshooting

Troubleshooting Guide……………………………………………………………….19-22
Incoming Power Supply………………………………………………………………….23
Logic Board Dcv Test Points…………………………………………………………….24
Cool Down Flow Chart…………………………………………………………………..25

Hot Air Operation Flow Chart…………………………………………………………...26

Steam Operation Flow Chart…………………………………………………………….27

Combi Mode Operation Flow Chart……………………………………………………..28
Door Switch Troubleshooting Flow Chart……………………………………………….29
Float Switch Troubleshooting Flow Chart……………………………………………….30
Convection Motor Direction Flow Chart………………………………………………...31

Drain Valve Troubleshooting Flow Chart……………………………………………….32

Logic Board LED Designations Flow Chart…………………………………………33-34
IFB (LED) Designations Flow Chart…………………………………………………….35
Point to Point Troubleshooting……………………………………………………….36-38

Symbol Designations…………………………………………………………………….39

Notes……………………………………………………………………………………..40

Section 3 Motor Speed Inverter Troubleshooting

Manual Control Inverter Programming………………………………………………41-42

MenuSelect Control Inverter Programming.................................................................43-44

Inverter Fault Codes and Stored Fault Codes…………………………………………...45

Section 4 Wire Schematic & Wire Harness

Manual Control Schematic W/Float P/n 39680………………………………………….47

Manual Control Schematic W/Level Board P/n 52853………………………………….48
New Manual Control Schematic 120V P/n 53849……………………………………….49
New Manual Control Schematic 208V – 240V P/n 53850………………………………50

MenuSelect Control Schematic W/Float P/n 51228……………………………………..51
MenuSelect Control Schematic W/Spritzer P/n 52855…………………………………..52

MenuSelect Control Schematic 480V P/n 53852………………………………………..53
BX14G Manual Control Schematic P/n 50546…………………………………………..54
BX14G MenuSelect Control Schematic P/n 51155……………………………………...55

Section 5 Error Codes

Manual Control W/Meat Probe Error Codes…………………………………………….56
New Manual Control W/Meat Probe Error Codes……………………………………….57
MenuSelect Control Error Codes………………………………………………………...58

Probe Chart

BCX14G with Manual Control

Part number 39800 located at the rear of the oven cavity below the blower motor a two
wire probe 1K value. At 75° 1090 ohm’s and at 300° 1575 ohm’s

BCX14G with MenuSelect Control

Part number 50310 located at the rear of the oven cavity below the blower motor a two
wire probe right angle 1K value. At 75° 1090 and at 300° 1575 ohm’s

(BX14G) with MenuSelect Control

Part number 50310

(BX14G/BCX14G with the New Manual)

Part number 50310 all the same as the above for MenuSelect Controls.

(BX14G) with Manual Control

Part number 50636 located at the rear of the oven cavity below the blower motor a 4 wire
probe 1K value. At 75° 1090 ohm’s and at 300° 1575 ohm’s

all the same as above for the BCX14G with MenuSelect Control.

Meat Probes

All Controls use the same Meat probes

Part number 39797 a 6” removable probe the plugs into the blue meat probe jack at the
bottom of the control panel.

This is a 1K probe at 75° 1090 ohm’s and at 300° 1575 ohm’

Standard Controls for Models BCX 14 and BX 14

1

when lit indicates

power to the unit is turned on.

-

the oven on or off. Allows selection of

Steam, Hot Air, Combi or Cool Down Modes.

desired cooking temperature.

displays time and temperature

UP & DOWN ARROW KEYS

enter values in the display.

press to display the ac

tual probe temperature during core cooking or

actual cavity temperature in timer mode.

TIME/PROBE TOGGLE KEY

select either timer or probe cooking.

use to clear or stop

the timer and silence the buzzer.

press to start the timer.

STEAM ON DEMAND TIMER

duration for steam on demand.

STEAM ON DEMAND SWITCH

ini tiate steam injection cycle.

STEAM ON DEMAND LAMP

steam on demand is activated.

used to turn the lights

used to open or

close vent to release steam fr

used to select fan

used to connect

the core temperature probe to the control.

illuminated until the steam

gen erator is filled with water.

NOTE: Model BX 14 ovens do not have a

DELIME LAMP (BCX 14 ovens only)

Flashes when steam generator deliming

is needed. Remains steady when deliming

CLEAN LAMP (BX 14 ovens only)

when the unit has been in use for a prepro

grammed time and needs to b

Operation

CONTROLS IDENTIFICATION

1. POWER ON LAMP -

2. MODE SELECTOR SWITCH

turns power to

2

3. TEMPERATURE DIAL -

used to set

4. DISPLAY ­in formation.

5.

3

4

6. ACTUAL TEMP KEY -

7.

- press to

- used to

8. CLEAR/STOP KEY -

5

5

9. START KEY -

10.

8

6

7

9

11.

12.

11

13. LIGHTS SWITCH ­on and off.

- used to set

- used to

- lights when

14. CAVITY VENT SWITCH -

10

12

15. FAN SPEED SWITCH ­speed.

om cavity.

16. PROBE CONNECTION -

13

14

17. FILL LAMP -

16

17

15

18

1

fill lamp.

18.

pro cess is active.

-

- Flashes

e cleaned.

Press the TIMER/PROBE TOGGLE KEY (7)

to select the timer mode. The TIMER LED

Turn the MODE SELECTOR Switch (2) to

Set the TEMPERATURE DIAL (3) to the de

emperature no

C).

For poaching, turn the temperature dial to

F (82

The optimum temperature for Combi

F (149 177

When the oven has reached the cook

, load the product.

Use the ARROW KEYS (5) to enter the desired

cook time in the display. You can clear the dis

play by pressing the CLEAR/STOP KEY (8).

Press the START KEY (9) to begin the timer.

The temperature, time and mode can be al

at any time during the cooking process.

To stop the timer, press the CLEAR/STOP KEY

When the timer reaches 00:00, the buzzer

sounds. Press the CLEAR/STOP KEY (8) to

si lence the buzzer. Remove the product.

8

Operation

Standard Controls for Models BCX 14 and BX 14

5

Press the TIMER/PROBE key (7) to select

the probe mode. The PROBE LED below

Use the ARROW KEYS (5) to enter the

desired final cook temperature in the

display. You can clear the display by

pressing the CLEAR/ STOP KEY (8).

Insert the core probe into the product. Load

product into the oven and close the door. Be

sure that the terminal end of the core probe is

outside of the oven and clear of the door.

Connect the core probe to the PROBE CON

NECTION (16) at the bottom of the

The display gives the actual core probe

When the product reaches the final cook

tem perature the buzzer sounds.

NOTE: The unit can be cooled down rapidly

for steaming, cleaning, etc.

To cool down the oven cavity, open the

door and select Cool Down on the MODE

SELEC TOR Switch (2).

TIMER COOKING

1.

PROBE COOKING

1.

below the display lights.

2.
the desired function.

3.
sired cook temperature.

For Steam mode, set the t
high er than 212_F (100_

the POACH position, 180_

mode is 300 350_

4.
temper ature

5.

6.

tered

(8).

7.

emperature no

_C).

_C).

2.

3.

4.

5.

6.

COOL DOWN

1.

the dis play lights.

control.

tem perature.

5

6

7

9

2

Standard Controls for Models BCX 14 and BX 14

STEAM ON DEMAND

How to set the Steam On Demand feature:

While in the Hot Air or Combi mode, the unit can

be set to steam for a

timed period. At the end of the

timed cycle the unit reverts back to the original set

ting. Steam On Demand can be used at any time

during the cook cycle.

is not available

1. Set the desired •steam

on" time with

STEAM ON DEMAND TIMER (10).

2. Press the STEAM

ON DEMAND SWITCH (11).

The STEAM ON DEMAND LAMP (12) lights.

Uses for Steam On

Demand:

Most of the ideas came from our creative custom

ers. Experiment with this feature on your own and

let us know of any new uses.

Add a minute or two at the beginning when bak

D

ing bread for a shiny crust.

Kick start large loads such as 20 or more chick

in

ens. By starting large loads with 5 to 8 minutes

of steam you help the oven recover and cut the

cooking time by

more than 10%.

the

Bake bagels without boiling. By starting raw ba

gels with 1 to 2 minutes of steam you can

achieve a beautiful crust.

F to 250

Combi mode using 2 minutes of on demand

steam.

cooking chicken wings, try setting the

oven in the Combi mode at 375

minutes of Steam On Demand. This method will

stop the tips from burning. Total cooking time is

approximately 12

minutes.

Pork ribs tend to pull off the bone better when

using 5 to 8 minutes of Steam On Demand. Try

ribs in the Combi mode at 350

F and use 3

_

F.

Operation

NOTE: Steam On Demand

steam mode.

10

D

D

D

D

D

11

12

Cream caramel is great at 230

When

_

_

F in the

_

3

Standard Control Second Level Programming

3. Press and Hold

for 5 seconds and release

or

Combi Manual Control Temp. (BP# 39673)

Instructions For +7° Temperature Offset

Recommended: Read instructions before programming. If each step is not
conducted within 9 seconds, the control will lock up and the programming
sequence will have to be restarted from step 1

1. Power oven off
. Power on oven in Combi Mode

2

4. Press and hold

5. Toggle

6. Press and release

7. Toggle

8. Press and release

9. Press

until "2 X X X" is displayed. Where "X X X" are any number

until Screen displays "P 3 X X" where "X X" are any number

for 5 seconds and release

PROBE LED will begin to Flash

until Screed displays "P 2 0 7"

TIMER LED will begin to flash

10. Press and release PROBE LED will begin to flash

11. Toggle or until Screed displays "P 3 0 0"

12. Do not touch oven for 10 seconds. "0 0 0" will appear. Temp. offset is now programmed

13. Turn off oven and turn back on

4

Standard Controls for Models BCX 14 and BX 14

1

14

-

the oven on or off. Allows selection of

Steam, Hot Air, Combi or Cool Down Modes.

displays time and temperature

desired cooking temperature.

lights when the oven is

lights when the cook time is

lights when the

actu al probe temperature is displayed

lights when the

core setpoint temperature is displa

use to select and

set either cook time or probe temperature

STEAM ON DEMAND DISPLAY

STEAM ON DEMAND LAMP

steam on demand is activated.

STEAM ON DEMAND KNOB

duration for steam on demand

press to turn the oven

used to select fan speed.

used to open or

close vent to release steam from cavity.

DELIME LAMP (BCX 14 ovens only)

Flashes when steam generator deliming

is needed. Remains steady when deliming

illuminated until the steam

gen erator is filled with water.

NOTE: Model BX 14 ovens do not have a

used to connect

the core temperature probe to the control.

Operation

3

4

5

8

10

2

7

11

13

6

9

CONTROLS IDENTIFICATION

1. MODE SELECTOR SWITCH

2. DISPLAY ­in formation.

3. TEMPERATURE DIAL -

4. HEAT LAMP ­calling for heat

5. TIMER LED ­displayed

6. PROBE ACTUAL LED -

7. PROBE SETPOINT LED -

8. TIMER/PROBE KNOB -

9.
the steam on demand time

10.

11.

12. LIGHTS KEY ­lights on and off

13. FAN SPEED KEY -

14. CAVITY VENT KEY -

15.

turns power to

used to set

yed

- displays

- lights when

- use to set

-

12

15

17

16

5

pro cess is active.

16. FILL LAMP -

17. PROBE CONNECTION -

fill lamp.

Press the TIMER/PROBE KNOB (8) to select

the timer mode. The TIMER LED lights.

Turn the MODE SELECTOR Switch (1) to

Set the TEMPERATURE DIAL (3) to the de

For Steam mode, set the temperature no

C).

For poaching, turn the temperature dial to

F (82

The optimum temperature for Combi

F (149 177

When the oven has reached the cook

temper ature, load the product.

Rotate knob to enter the desired cook

time in the display. You can clear the

display by rotat ing counter clockwise.

The timer begins on its own.

The temperature, time and mode can be al

tered at any time during the cooking process.

When the timer reaches 00:00, the buzzer

sounds. Press or rotate the TIMER/PROBE

KNOB (8) counter clockwise to silence the

buzzer. Remove the product.

Operation

Standard Controls for Models BCX 14 and BX 14

Press the TIMER/PROBE knob (8) to

select the probe setpoint mode. The

LED (7) lights.

Rotate the knob to enter the desired final

cook temperature in the display.

Insert the core probe into the product. Load

product into the oven and close the door. Be

sure that the terminal end of the core probe is

outside of the oven and clear of the door.

Connect the core probe to the PROBE CON

NECTION (17) at the bottom of the

The display gives the actual core probe tem

perature by pressing the TIMER/PROBE knob

When the product reaches the final cook

tem perature the buzzer sounds.

NOTE: The unit can be cooled down rapidly

cleaning, etc.

To cool down the oven cavity, open the

door and select Cool Down on the MODE

SELEC TOR Switch (1).

TIMER COOKING

1.

2.
the desired function.

3.
sired cook temperature.

PROBE COOKING

1.

PROBE SET POINT

2.

3.

high er than 212_F (100_

the POACH position, 180_

mode is 300 350_

4.

5.

6.

7.

_C).

_C).

4.

5.

(8) again.

6.

control.

COOL DOWN

1.

for steaming,

6

Standard Controls for Models BCX 14 and BX 14

How to set the Steam On Demand feature:

While in the Hot Air or Combi mode, the unit

can be set to steam for a timed period. At the

end of the timed cycle the unit reverts back to

Demand can

be used at any time during the cook cycle.

NOTE: Steam On Demand is not available in

Turn the STEAM ON DEMAND KNOB (11) to

set the desired length of time. The time is dis

played in the STEAM ON DEMAND DISPLAY

Press the STEAM ON DEMAND KNOB (11).

The STEAM ON DEMAND LAMP (10) lights.

Most of the ideas came from our creative

custom ers. Experiment with this feature on

your own and let us know of any new uses.

Add a minute or two at the beginning when

bak ing bread for a shiny crust.

Kick start large loads such as 20 or more

chick ens. By starting large loads with 5 to 8

minutes of steam you help the oven recover

and cut the cooking time by more than 10%.

ke bagels without boiling. By starting

raw ba gels with 1 to 2 minutes of steam

you can achieve a beautiful crust.

F to 250

Combi mode using 2 minutes of on demand

When cooking chicken wings, try setting

oven in the Combi mode at 375

minutes of Steam On Demand. This method

will stop the tips from burning. Total cooking

time is approximately 12 minutes.

Pork ribs tend to pull off the bone better when

using 5 to 8 minutes of Steam On

Try ribs in the Combi mode at 350

Operation

STEAM ON DEMAND

the original set ting. Steam On

Uses for Steam On Demand:

D

D

1.

2.

steam mode.

(9).

D Ba

D Cream caramel is great at 230_

steam.

D

D

_F in the

_F and use 3

Demand.

_F.

the

7

Se

rvice

Level Programming

BCX, BX – NEW MANUAL CONTROL

Code: 7378

(The oven needs to be in the “OFF” position)

Press the Timer Dial Till “0000” Is Displayed

Turn the Dial: Scroll the flashing # to (7)000
Press the Dial to Enter Scroll the flashing # to 7(3)00
Press the Dial to Enter Scroll the flashing # to 73(7)0
Press the Dial to Enter Scroll the flashing # to 737(8)
Press the Dial to Enter Scroll to (DIAG) Diagnostics

Press the Dial to Enter

“D-01” Is Displayed

(Cavity Heat Relay)

Press the Dial to Enter Turn Dial CW to “ON”

Turn Dial CCW to “OFF”

Press the Dial to EXIT

(CONTINUE) (FOLLOW STEPS ABOVE)

Scroll the Dial to D-02 Boiler Heat Relay

D-03 Water High Level Switch Status
D-04 Water Low Level Switch Status
D-05 Drain Relay
D-06 Fill Relay
D-07 Steam Relay
D-08 Quench Relay
D-09 Motor-Reversals Relay Gently
D-10 Motor Gently
D-11 Motor Low

D-12 Motor High
D-13 Motor Turbo

D-14 Door Status
D-15 Lights Relay
D-16 Delime Pump Relay
D-17 Software Flash Number

D-18 Software Number
D-19 Software Download Number

Page 8

Se

rvice

Level Programming

BCX, BX NEW MANUAL CONTROL

Code: 7378

(The oven needs to be in the “OFF” position)

D-20 SIB Software Number
D-21 Cavity Set Temperature
D-22 Cavity ACT Temperature
D-23 Cooling Fan Probe Temperature
D-24 Quench Probe Temperature
D-25 Core Probe Temperature
D-26 Boiler Tank Temperature
D-27 Main Switch

D-28 Fan Feedback Input
D-29 Cook Done relay
D-30 Vent relay
D-33 Cool Fan Relay

D-34 Hot Air relay
D-35 Hot Air Enable Relay
D-37 All Relays
D-38 Display and LED Test

END End Of Diagnostic Test

Press Dial to Exit

Page 9

Factory

Level Programming

BCX, BX – NEW MANUAL CONTROL

Code: 3228

(The oven needs to be in the “OFF” position)

Press the Timer Dial Till “0000” Is Displayed

Turn the Dial: Scroll the flashing # to (3)000
Press the Dial to Enter Scroll the flashing # to 3(2)00
Press the Dial to Enter Scroll the flashing # to 32(2)0
Press the Dial to Enter Scroll the flashing # to 322(8)
Press the Dial to Enter “P-01” Is Displayed

Press the Dial to View Turn Dial to: (F)

Press the Dial to Retune Turn Dial to: P-02

(CONTINUE) (FOLLOW STEPS ABOVE)

P-## “ Set To “
(P-02) Cool Down Temp 100F
(P-03) Ready Beep ON
(P-04) Fan Reverse Time 6:00
(P-05) Cook Done Beeper Yes
(P-06) Delime Interval 30 Hours
(P-07) Flush Interval 24 Hours
(P-08) Appliance Type Gas
(P-09) Machine Type BCX / BX
(P-10) Max Steam On Demand

20

(P-11) Min Hot Air Set Point 140F
(P-12) Max Hot Air Set Point 500
(P-13) Min Steam Set Point 85F

(P-14) Max Steam Set Point 225F
(P-15) Max Core Probe Pull Temp 200F
(P-16) Upper Hot Air Hysteresis 1F
(P-17) Lower Hot Air Hysteresis 1F

(P-18) Upper Steam Hysteresis 1F
(P-19) Lower Steam Hysteresis 1F

Page 10

Factory

Level Programming

BCX, BX NEW MANUAL CONTROL

Code: 3228

(The oven needs to be in the “OFF” position)

(P-20) Upper Ready Band 25F
(P-21) Lower Ready Band 10F
(P-22) Cavity Probe Offset 0F
(P-23) Core Probe Offset -2F
(P-24) Spritzer Solenoid Duty Cycle

(P-25) User Response Timeout

33

5

(P-26) Sleep Mode Timeout 1
(P-27) Counter Start Delay 2

(P-28) Quench Probe Yes
(P-29) SCK Address 30
(P-31) ACT Oven Temp Display

No

(P-32) Remote Beeper Yes

Press Dial to Exit Scroll to END

Press Dial to Exit End Of Factory Programming

Page 11

MenuSelect Control for Models BCX 14 and BX 14

11

Operation

START/STOP KEY press to start, cancel or

pause the bake

COOL DOWN KEY initiates oven cool down

cycle

BAKE MORE KEY press at the end of a bake

cycle to add additional bake time in one min

ute increments.

DISPLAY displays time or temperature and

other information related to oven function and/

or programming.

DIAL used to enter set points, time, and pro

grammable settings. Also used to select the

programmed product.

TEMP KEY used to set or change the bake

7

temperature

TIME KEY used to set or change the bake

time.

COMBI KEY press to enter combi mode

STEAM KEY press to enter steam mode

HOT AIR KEY press to enter hot air mode

RETHERM KEY press to enter retherm

mode, this mode uses steam to reheat frozen

or precooked product. Retherm has a temper

19

ature limit of 250 300

_

F.

STEAM ON DEMAND KEY used to initiate

steam injection cycle

20

13. PROBE KEY press to use core probe cooking

FAN KEY press to select the fan speed

LIGHT KEY press to turn the lights on and off.

VENT KEY press to manually open and close

the oven vent

PROGRAM KEY press to enter product pro

gramming and save programmed settings.

ESCAPE KEY press to back up one step dur

ing programming

MAINTENANCE KEY press to enter manager

programming and save programmed settings

ALPHA/NUMERIC KEYPAD used to program

recipes.

POWER KEY used to place control in and out

of standby mode.

CORE PROBE CONNECTION plug core tem

perature probe in here when using probe

cooking

18

1

4

12

14

15

17

21

22

6

8

2

3.

3

4.

5.

5

9

10

13

16

14.

15.

17.

18.

20.

21.

CONTROL DESCRIPTION

1.

2.

6.

7.

8.

9.

10.

11.

12.

16.

19.

22.

12

MenuSelect Control for Models BCX 14 and BX 14

Be sure the gas shutoff switch and/or circuit

breaker switch below the control panel are

in the on position. The display flashes OFF

PRESS POWER KEY TO START.

NOTE: If the real time clock and auto wake

up functions are enabled the

display reads PRESS POW

TO START AUTO START.

Press the POWER KEY (21). The display

reads PREHEAT and the oven heats to the

last manu al set temperature in the hot air

mode. The dis play flashes READY / IDLE

and the alarm beeps 5 times when the

eady to bake.

1. Turn the DIAL (5) until the display reads

Press the TIME KEY (7). Rotate the dial, or

use the alpha/numeric keypad to enter the

desired bake time. Press the center of the

NOTE: Time is set in one minute increments

using the dial. To set time in less

than one minute increments use the

Press the TEMP KEY (6). Rotate the dial, or

use the alpha/numeric keypad to enter the

de sired bake temperature. Press

of the dial to set the bake temperature. The

oven preheats to the new temperature.

NOTE: Temperature is set in 5 degree incre

ments using the dial. To set time in

less than 5 degree increments use

the al pha/numeric keypad.

Press the desired mode key, combi,

If Combi or Retherm are selected, rotate

the dial, or use the alpha/numeric keypad

to enter the desired percentage of steam.

NOTE: Retherm has a temperature limit of

When the display flashes READY / IDLE,

open the doors. Load the product.

Press the START/STOP KEY (1) to begin the

bake cycle. The timer counts down and the

display alternates between the cooking

mode and the name of the product.

Turn the DIAL (1) until the name of the

product is highlighted. Press the center of

the dial to select. The oven preheats to the

programmed temperature in the correct

cooking mode. The display flashes READY /

IDLE and the alarm beeps 5 times when the

is at tempera ture and ready to bake.

Open the doors. Load the product.

Press the START/STOP KEY (1) to begin the

bake cycle. The timer counts down and the

display alternates between the cooking

mode and the name of the product.

Press the PROBE key (13) to select the

probe mode. The display reads CORE

PROBE COOK & HOLD. Turn the dial to

select either YES or NO. Press the center

If YES is selected, Cook & Hold has been

Hold mode, the

oven cav ity lowers to the product pull

temperature as the product cooks.

If NO is selected, Cook & Hold has not

been enabled the cavity maintains the

Turn the DIAL to enter the desired product pull

temperature in the display. Press the center of

the dial to save the pull temperature.

Press the TEMP KEY (6). Rotate the dial, or

use the alpha/numeric keypad to enter the

de sired bake temperature. Press

of the dial to set the bake temperature. The

oven preheats to the new temperature.

NOTE: Temperature is set in 5 degree incre

ments using the dial. To set time in

less than 5 degree increments use

the al pha/numeric keypad.

Operation

OVEN STARTUP

1.

2.

ER KEY

6.

PROGRAMMED COOKING

1.

oven is at temperature and r

MANUAL COOKING

MANUAL.

2.

dial to set the bake time.

3.

alpha/ numeric keypad.

4.
steam, hot air or retherm.

the center

oven

2.

3.

PROBE COOKING

1.

of the dial to se lect.

en abled. In the Cook &

cook temper ature.

2.

3.

the center

5.

250 300_F.

13

MenuSelect Control for Models BCX 14 and BX 14

Press the desired mode key, combi,

are selected, rotate

the dial, or use the alpha/numeric keypad

to enter the desired percentage of steam.

NOTE: Retherm has a temperature limit of

Insert the core probe into the product. Load

product into the oven and close the door. Be

sure that the terminal end of the core probe is

outside of the oven and clear of the door.

Connect the core probe to the PROBE CON

NECTION (22) at the bottom of the

NOTE: Do not connected the probe before

the cook mode has been selected.

The display gives the actual core probe tem

perature as well as the oven set temperature.

When the product reaches the pull

tempera ture the buzzer sounds.

Press the START/STOP KEY (1) to silence

The cavity tempera

ture continues to drop to the product pull

tem perature and the display counts up,

telling the operator long the product has

been held. Dis connect the core pro

and remove the prod uct when ready.

If not using Cook & Hold

mains at the cook temperature. The

display does not count up. Disconnect the

core probe and remove the product when

While in the Hot Air, Combi or retherm modes,

the unit can be set to steam for a timed period

of up to 20 minutes. At the end of the timed

cycle the unit reverts back to the original

setting. Steam On De mand can be used at

k cycle.

Press the STEAM ON DEMAND KEY (12).

Rotate the dial, or use the alpha/numeric key

pad to enter the desired steam on demand

Operation

time. Press the center of the dial to

initiate Steam on Demand cycle.

NOTE: Steam on Demand time is set in one

minute increments using the dial. To

set time in less than one minute incre

ments use the alpha/numeric keypad.

The Steam on Demand LED flashes until

the steam time has expired.

Venting Moisture from the Oven Cav

Press the VENT KEY (16). This manually

opens the vent until the key is pressed

To pause a cook cycle, press the START/

STOP KEY (1). The LED on the start/stop

key flashes. The bake cycle will pause

until the key is pressed again.

To cancel the cook cycle, press and hold

the START/STOP KEY (1).

ANY COOK CYCLE

An alarm sounds, the display reads DONE.

If more bake time is desired, press the BAKE

MORE KEY (3). This will add an additional one

minute of time for each press of the key.

When you are satisfied with the bake, press

(1) to silence the alarm.

Open the door to remove the product.

Press the COOL DOWN KEY (2). The

display reads AUTO COOL DOWN

ACTUAL TEMP. To speed up the cool

down process, open the doors and press

the VENT KEY (16) to open the vent.

When the oven has cooled down, the display

reads OFF PRESS POWER KEY TO START.

NOTE: The lights shut off and the vent

closes automatically at the end of

the cool down cycle.

4.

steam, hot air or retherm.

If Combi or Retherm

5.

6.

250 300_F.

7.

8.

9.

the buzzer.

If using Cook & Hold -

the buzzer sounds.

DURING ANY COOK CYCLE

Steam On Demand

control.

be

- The cavity re

3.

1.

again to close it.

Pause a Bake Cycle

1.

Cancel a Cook Cycle

1.

AT THE END OF

1.

2.

3.
the START/STOP KEY

OVEN SHUTDOWN

1.

2.

ity

any time during the coo

1.

2.

14

Control for Models BCX 14 and BX 14

Press the PROGRAM KEY (17). If the control

is password protected, the display reads EN

TER CODE. Use the alpha/numeric keypad

passcode 3124, then

press the center of the dial to enter the

NOTE: Use the following procedure to name a

new product or edit the name of an

For a new recipe, turn the dial to the first open

product. Press the center of the dial to select.

To edit an existing name, rotate the dial to

the name to be changed. Press the center

Use the dial to scroll down to Edit Name.

ess the center of the dial to enter the

Turn the dial or use the alpha/numeric keypad

to select the first character. Press the center of

the dial to advance to the next character. Re

NOTE: Product names may be up to 10

char acters long and can contain

spaces. Use the #1 key to insert

spaces in a recipe name.

NOTE: To select letters using the keypad,

press the appropriate key once if you

need the first letter on the key, twice

second and three times for the

third. For example to enter the letter L

press the #5 key three times.

Press the PROG KEY (17). With SAVE

high lighted, press the dial to save the

Programming a Product Recipe

NOTE: The control can hold 99 recipes. Each rec

ipe may have up to 6 cooking stages.

Turn the dial to highlight the name of the

prod uct to be programmed. Press the

center of the dial to select the product.

The display reads PRODUCT NAME: STAGE 1.

Press the center of the dial to select the stage.

Rotate the dial, or use the alpha/numeric key

pad to enter the desired bake time. Press the

center of the dial to set the bake time.

minute increments

using the dial. To set time in less

than one minute increments use the

alpha/ numeric keypad.

Rotate the dial to select the desired

cooking mode. Choose from combi,

steam, hot air or retherm. Press the

center of the dial to set the cook

If Combi or Retherm are selected, rotate

the dial, or use the alpha/numeric keypad

to enter the desired percentage of steam.

Rotate the dial, or use the alpha/numeric

key pad to enter the desired cook

temperature. Press the center of the dial

set the bake tem perature.

NOTE: Temperature is set in 5 degree incre

ments using the dial. To set time in

less than 5 degree increments use

the al pha/numeric keypad.

NOTE: Retherm has a temperature limit of

Rotate the dial to select the desired fan speed.

Choose from gentle, low, high or turbo. Press

the center of the dial to set the fan speed.

Operation

MenuSelect

PRODUCT PROGRAMMING

Entering the Program Mode

1.

1.

to enter the manager

program mode.

Naming a Product Recipe

1.

2.

3.

existing product.

of the dial to select.

Pr
edit name menu.

peat for all remaining characters.

2.

3.

NOTE: Time is set in one

4.

5.

to

mode.

for the

4.

product name.

6.

250 300_F.

15

BCX, BX – MENUSELECT CONTROL

Service Level Programming

(The oven needs to be in the “ON” position)

Press the Maint Key Scroll to “SERVICE”
Press the Dial to Enter Enter Service Code “7378”
Press the Dial to Enter Scroll to “Diag Output”
Press the Dial to Enter

Press and hold # button to test

Temp Heat

Combi Fan Speed Gentle Fwd

Fan Fan Speed Low Fwd

Prog Fan Speed High Fwd Forward

1 Fan Speed Turbo Fwd
4 Fan Speed High Rev
7 Light

Light Spritzer

ESC Cooling Fan

2 Vent
5 Hot Air
8 Hot Air Enable

Component Function Test:

(Press the Dial to Exit) Scroll to “Diag Input”

Press the Dial to Enter

Press and hold buttons to test

0 Quench

Hot Air Delime

Probe Heat Boiler

Vent Fill

Maint Drain

Component Function Test:

Temp Fan Error

Combi Door

Fan Cavity Probe Temp

Page 16

BCX, BX MENUSELECT CONTROL

Service Level Programming

(The oven needs to be in the “ON” position)

Prog Cooling Fan Probe Temp

1 Quench Probe Temp
4 Core Probe Temp
7 Boiler Probe Temp

Steam Water Hi Level SW

Steam on Demand Water Low Level SW

“Press the Dial to Exit” Scroll to Exit

Press the Dial to Exit Scroll to Exit Press (“Dial”)

Factory Level Programming

(The oven needs to be in the “ON” position)

Press the Maint Key Scroll to Factory Program
Press the Dial to Enter Enter the Factory Code “3228”
Press the Dial to Enter Scroll to “Appliance Type”
Press the Dial to Enter Turn Dial to set Gas or Electric
Press the Dial to Enter

Scroll to “Cavity Probe Offset”
Press the Dial to Enter Turn the Dial to Set the Offset
Press the Dial to Enter

Scroll to ”Core Probe Offset”
Press the Dial to Enter Turn the Dial to set the Offset

Press the Dial to Enter

Scroll to Exit

Press the Dial to Exit Scroll to Exit again

Press the Dial to Exit the

Program Level.

Page 17

Notes:

Page 18

BCX14G

BCX14G TROUBLESHOOTING GUIDE

In this troubleshooting guide, the schematic is
broken down into areas. This allows the oven to be
checked in sections.

When troubleshooting, tilt the control panel down
for access to use your voltmeter. The main control
circuit voltage for all BX / BCX and CNVX model
ovens is 24DC volts. Once the problem is
determined be sure to power the oven down before
disconnecting connections.

NOTE: Always troubleshoot Combi ovens in the
following sequence: COOL DOWN, HOT AIR,
STEAM and then COMBI. Reference the text that
follows with the appropriate troubleshooting
schematic to help you troubleshoot each mode.

DC VOLTAGE TEST POINTS

1. At the DCV power supply should be (2)
+24Dcv and (2) -24Dcv_Rtn connections, when
115Acv is applied to the power supply there
will be a small green light on at the power
supply and it should always have 24Dcv
between the plus and minus points.

2. Locate the logic board small connector J1 using
your voltmeter checking for 24Dcv between
terminals (J1-1) 24Dcv Rtn
verify true 24Dcv input to enable the logic
board during the power up.

3. The J1 connector between (J1-1) -24Dcv Rtn
and (J1-4) +24dcv will be the best (Test points).
When troubleshooting any problems, if your
looking for a low signal test between (J1-4)
+24Dcv RD to the low input searching for, or if
your looking for a +24Dcv_H positive leg of
power check between (J1-1) -24Dcv_Rtn and
the high signal searching for. (See FIGURE 1)

4. Checking for 24Dcv at the IFB relay board J7
connector between (J7-1) to (J7-2).

5. NOTE: While troubleshooting the 24Dcv circuit
with the wire schematic you will see that most
all of the control switching is to a (Low)
24Dcv_Rtn. Also while reviewing the wire
schematic you will see the wires labeled as a
(High) or (Low) input such as (Oven_On_L) for
the low input and (Door_Closed_H) for a high
input/output.

to (J1-4) +24Dcv to

6. Acv/Dcv. See the incoming power supply flow
chart (FIGURE 1).

NO OPERATION WITH THE MODE SWITCH
IN COOL DOWN

1. Verify that the control panel circuit breaker is in
the on position.

2. Check the outlet for proper power supply.

3. Remove the LH body side panel and inspect the
motor inverter control to see if it is powered up
with 115Acv and if there are any error codes
present if so, see the attached fault code list for
troubleshooting. The display will show 00 if
there are no fault codes present while the motor
is not running. If no codes are present continue
or if a code is present see the programming fault
code troubleshooting flow chart in section 4
(FIGURE 1) page 15.

4. Locate the logic board small vertical RH
connector J1 using your voltmeter checking for
24Dcv between (J1-4) to the mode switch
terminal # 4 voltage should be present, if not
investigate the mode switch. Also check
between the J1 connector (J1-4) to the inverter
connector BK-12 wire at CM2 for 24Dcv, if no
voltage check the IFB relay board connector J3.

5. To bypass the mode switch and wire harness
use your voltmeter set to the 10amp red fuse
side with the black in COM then set your meter
to DC amps, now your meter is a fused jumper
wire. Now jump between the logic board J1
connector (J1-1) to the motor speed inverter
GY-19 low signal at terminal # 2 of the inverter.
This should activate the inverter power up. See
the cool down operation troubleshooting flow
chart (FIGURE 3).

NO OPERATION WITH THE MODE SWITCH
IN HOT AIR

1. Verify that the convection motor is running with
the door fully closed. If not see door switch
troubleshooting flow chart (FIGURE 7).

2. Verify that the thermostat has powered up,
counted down and displaying a set temperature
along with the heat indicator light activated.

3. Remove the LH body side panel and tilt the
control panel down for troubleshooting access.

19

BCX14G

BCX14G TROUBLESHOOTING GUIDE

4. Checking for logic board input/output LED
indicators, in the hot air mode the amber input
LED’s #6 and #9 need to be on along with the
green output LED #13. Verify LED’S with the
logic board LED designation flow chart
(FIGURE 11).

5. Also look for LED indicator inputs at the (IFB)
relay board, the CR3 relay LED (D31), CR2
relay LED (D21) and the CR1 relay LED (D11)
will all need to be on. If not check all
connectors and the 24Dcv inputs at the J7
connector per the wire schematic. Verify
LED’S with the IFB LED indicator designation
flow chart (FIGURE 12).

6. If all of the above are good continue testing
checking at the (T1) transformer for 24Acv
output if good check the IFB connector J4
between (J4-1) and (J4-2) 24Acv should be
present.

7. Check for burner pilots if none check between
the J4 connector (J4-2) to (J4-3) for 24Acv.

8. If pilots were on but no main burner check the
J4 connector between (J4-2) to (J4-4) for
24Acv. If not then check the (IFB J4) connector
for damage).

9. See the Hot air troubleshooting flow chart
(FIGURE 4).

NO OPERATION WITH THE MODE SWITCH
IN STEAM

1. Verify that the convection motor is running
with the door closed. If not see door switch
troubleshooting flow chart (FIGURE 7).

2. Verify that the thermostat has powered up,
counted down and displaying a set temperature
along with the heat indicator light activated.

3. Remove the LH body side panel and tilt the
control panel down for troubleshooting access.

4. Check for logic board input/output LED
indicators, in the steam mode the amber input
LED’s # 3 and # 6 need to be on along with the
green output LED # 10. Verify LED’S with the
LED designation flow chart (FIGURE 11).

5. Look for LED indicator inputs present at the
IFB relay board, looking for the CR3 relay
LED (D31), CR2 relay LED (D21) and the

6. CR7 relay LED (D71) should be on. If not

check IFB connector J7 between (J7-1) to (J7-

2) for 24Dcv input see wire schematic. Verify
LED’S with the IFB LED indicator flow chart
(FIGURE 12).

7. If all of the above is good continue testing
checking at the (T2) transformer for 24Acv

8. Output if good check the IFB connector J6
between (J6-1) to (J6-2) 24Acv should be
present.

9. Check for the steam burner pilot if none check
the J6 connector between (J6-2 to (J6-3) for
24Acv.

10. If pilot was on but no main burner check the J6
connector between (J6-2) to (J6-4) for 24Acv.
If not then check the (IFB J6) connector for
possible damage correct as needed). See the
steam mode flow chart (FIGURE 5).

NO OPERATION WITH THE MODE
SWITCH IN COMBI

1. Verify that the convection motor is running with
the door fully closed. If not see door switch
troubleshooting flow chart (FIGURE 7).

2. Verify that the thermostat has powered up,
counted down and displaying a set temperature
along with the heat indicator light is activated.

3. Remove the LH body side panel and tilt the
control panel down for troubleshooting access.

4. Checking for logic board input/output LED
indicators, in the Combi mode the amber input
LED’s #2 and #6 need to be on along with the
green output LED #13 and then #10 for 45
seconds intervals of steam while in Combi.
Verify LED’S with the LED designation flow
chart (FIGURE 11).

5. Look for LED indicator inputs at the (IFB) relay
board, looking for the CR3 relay LED (D31),
CR2 relay LED (D21), CR1 relay LED (D11)
will all need to be on and CR7 relay LED (D71)
will be on during a 45 second steam on time. If
not check all connectors and the 24Dcv input at
the J7 connector per the wire schematic
between (J7-1) to (J7-2). Verify the LED inputs
with the IFB LED indicator designation flow
chart (FIGURE 12).

20

BCX14G

BCX14G TROUBLESHOOTING GUIDE

6. If all of the above is good continue testing
checking at the (T1) transformer for 24Acv
output if good inspect at the IFB connector J4
between (J4-1) to (J4-2) for 24Acv should be
present.

7. Check for the burner pilots if none check
between (J4-2) to (J4-3) for 24Acv.

8. If pilots were on but no main burner check
between (J4-2) to (J4-4) for 24Acv.

9. If not then check the (IFB J4) connector for
damage. See the Combi mode troubleshooting
flow chart (FIGURE 6).

NO FILLING OF THE STEAM BOILER

1. Verify the water pressure and flow of the water
pressure through the pressure regulator.

2. Verify that the control panel circuit breaker is in
the on position.

3. Check for 24Dcv at the power supply with the
mode switch in the off position, green light ON.

4. Shut the water supply off, then at the IFB board
locate the flush switch in the center RH of the
relay board and press and hold it for 45 seconds
while checking for water flowing out the drain.

5. After doing so disconnect the float wires (mark
as needed) check for continuity, both floats are
normally closed and open when are floats full.

6. If floats are closed re-connect the float wires
and turn the water supply back on. At this point
with the mode switch still in the off position the
logic board LED indicators amber input # 8 and
green output # 15 should be on activating the
fill solenoids.

7. No water filling yet check the IFB fill enable
CR8 relay LED (D81), if not on check the relay
board J8 connector at (J8-1) to (J8-2) for 24dcv.

8. See the float switch troubleshooting flow chart
(FIGURE 8).

OVER FILLING OF THE STEAM BOILER

1. Turn off the control panel circuit breaker to see
if the water over filling continues in the oven.

2. If water stopped when power was off, turn the
circuit breaker back on and check for the fill
light on the control panel and look at the logic
board for LED indicators. If LED’s amber
input # 8 and green out put # 15 are on this

would indicate the (LLC) low level cut float is
in the closed position and will not open. Repair
or replace floats switch as needed.

3. Check both float switches for normally closed
when empty and open when steam generator is
full. (If they do not open repair or replace floats
as needed.

4. See the float switch troubleshooting flow chart
(FIGURE 8).

CONVECTION MOTOR WILL NOT
REVERSE DIRECTIONS.

1. This oven comes equipped with the feature of
the convection motor reversal after every six
minutes of motor run time in all modes except
for the cool down mode.

2. When any mode but cool down is activated the
motor should start up counter clockwise.

3. Check for 24dcv at the TMR1 timer between
A1 to A2. When verified test between A1 to #
16 for 24dcv after six minutes 24dcv will
switch from terminal #16 to # 18. (If voltage
does not switch remove the wire from #18 and
retest the timer for switching.

4. What ever the out come the motor speed
inverter is looking for a 24Dcv_Rtn_L input
from the timer to either terminal #5 or #6 at the
motor speed inverter to reverse directions.

5. See the motor reverse troubleshooting flow
chart (FIGURE 9).

DOOR SWITCH TROUBLESHOOTING

1. The door switch is a proximity switch that is
activated by the metal of door when it is closed
therefor-proper adjustment is needed.

2. The door switch is located at the lower left
corner with the door open the switch will be
protruding out ½ inch, inspect the switch for
any damage and for proper adjustment.

3. There are three wires from the door switch that
go directly to the IFB connector J5.

4. Check for 24Vdc active at the IFB relay board
at the connector J5 from (J5-3) to (J5-4).

5. If the door switch has 24Vdc going to it when
the door is closed the back of the door switch
will light up to indicate the door switch has

21

BCX14G

BCX14G TROUBLESHOOTING GUIDE

been activated and the blower motor should
began running.

6. At this point check for +24Vdc_H output from

the IFB connector J5 from (J5-2) to (J5-5). If
the voltage is present and the door switch is
closed now look for an LED indicator at the
IFB relay board CR2 relay (D21). See door
switch troubleshooting flow chart (FIGURE 7).

DRAIN VALVE TROUBLESHOOTING AND
OPERATION

1. The drain valve will always remain in the
closed position during all mode operations.

2. If the oven boiler is below 150 degrees and
after somewhere between 3-5 hours of non use
the logic board will activate the drain valve
motor to open and drain the boiler down then it
will close the drain valve motor and then refill
the boiler to the low level float switch.

3. When troubleshooting the drain valve motor
operation there is a small stem switch on the
right side of the IFB relay board. This can be
depressed to activate the drain valve motor,
while holding the switch (In) the drain valve
motor open fully to drain the boiler down and
when the switch is released the drain valve
motor will return to the normally closed
position. (Caution of a hot boiler).

4. See Troubleshooting (FIGURE 10).

NO STEAM ON DEMAND

1. While depress the steam on demand button
verify at the logic board LED indicators amber
input # 4 and green output # 12.

2. No LED input check for a 24dcv-Rtn_L input
to the logic board at the J3 connector at (J3-7)
of the logic board. If there is no input
24Dcv_Rtn_L signal go to the steam on
demand switch SW10 and check for a
24Dcv_Rtn_L signal at BK-7 of the switch to
Logic Board J1 connector (J1-4).

NO DELIME PUMP OPERATION

1. The delime pump can be tested with the oven
placed in the cool down, when you press and
hold the steam on demand button for a few

several seconds 24Vdc should be applied
directly the delime pump.

2. Verify when you activate the steam on demand
button, at the logic board LED indicators
amber input #4 and green output #12 light up.

3. If no voltage is found during the first test at the
delime pump, go to the IFB relay board J8
connector and test between (J8-1) to (J8-2)
24Vdc should be present.

4. Continued testing, check for 24Vdc to the R-12
wire at the delime pump testing from the J8

5. IFB connector (J8-2) to the R-12 wire. If
voltage is good this would mean the red
+24Vdc is good now check between the V-13
wire at the delime pump to check the
24Vdc_Rtn_L input from the J8 connector test
between (J8-1) to V-13. If no voltage inspect
the IFB relay board for damage.

MOTOR SPEED INVERTER PRGRAMING

1. Every motor speed inverter has been
programmed from the factory however for
some reason if it lost it’s programming it can
be reprogrammed manually.

2. You will see on the inverter drive the green
(Run) and red (Stop/Reset) buttons, below
those two buttons there is a door that will open
up to gain access to the programming keys
need to reprogram the inverter drive.

3. Behind the access door the programming keys
are (FUNC.), (#1⇑⇑⇑⇑ ), (#2 ⇓⇓⇓⇓) and (STR).

4. To program the inverter drive back to the
factory settings (See the attached programming
flow chart (Figure 3).

5. See Inverter fault code & stored fault codes
flow chart section 4 (FIGURE 1) page 15.

22

BCX14G

BCX14G INCOMING POWER SUPPLY CHECK

24dcv Power Supply

115 24dcv
Incoming ACV + + 24dcvRtn A. 24Vdc to J7 at (IFB)
L -
N + 24dcv

- 24dcvRtn B. 24Vdc to J1 connector

Switch Closed
+24Vdc
24Vdc Rtn

Logic Board

J1 Conn.
Incoming powers from the DC power supply control (B.24Vdc.) J1-4
Red

J1 ∧ TMR1 (Timer)
P1 ∧ ∧ J1 A2
∧ P1< < < Oven_On_L

1+3 #2 Logic Board
0 0 J1-6
Logic Board J3
5,7,9 0 0 #6 Combi (J3-1)

J1-4 Logic board 0 #8 Steam (J3-2)

0 #10 Convection (J3-6)

J2-2 Temp control TC1
+24Vdc (Temp Control)
J2-1

Control panel lights

(DS5)
Pwr_On
(DS6)
Heat_Demand
(DS9)
Steam_Demand
(DS8)
Delime
(DS7)
Low_Water

+24
Dcv

FIGURE 1

23

BCX14G

BCX14G LOGIC BOARD ( J1 ) CONNECTOR VOLTAGE TEST POINTS

LOGIC BOARD VOLTAGE TEST POINTS AT (J1 CONNECTOR)
From (J1-1) BK 24Dcv_Rtn_L to (J1-4) RD +24Dcv_H

(Always live with circuit breaker On)

Trouble shooting test points!

Your volt meter leads should insert
right into the LH side of the J1
connector through a hole provided
from the factory for test points.

This connector will provide the
best test points while testing for a
24Dcv_Rtn_L, with your meter
Red lead into (J1-4)-RD +24Dcv
and your Black lead testing for the
24Dcv_Rtn_L.

Or your meter Black lead into the
(J1-1)-BK 24Dcv_Rtn_L and your
Red lead testing for a +24Dcv_H.

24DCV

- +

J3

J4

J1-4 RD

J1

J1-1 BK

J

FIGURE 2

24

BCX14G

T3

BCX14G COOL DOWN MODE OPERATION TROUBLESHOOTING

J3
Connector
24Dcv_Rtn_L 24Dvc_Rtn_L

Switch Closed

1&3 4

Mode_Sw

+24dcv

- +

J1-4
J1 Connector
Logic Board

Inverter Drive

24Dcv_L

MOTOR

J3-1 Motor_Fwd_Ena

J3-2 Motor_Rev_Ena

J3-3 Spd_Sel_0

J3-4 Spd_sel_1

J3-5 Drv_@SetSpd

J3-7 Inv_Com

ACV

115Ac

NEU

1

2

3

4

5

L

11

12

CM2

T1

T2

FIGURE 3

25

BCX14G

J1-6

Com

J4-6 J4

-

2

Sense

burners

BCX14G HOT AIR FLOW CHART

+24Vdc_H
Logic Board
24Vdc_Rtn_L J1 TMR1
CR1
24Vdc_Rtn A2 15

+24Vdc

Oven On Oven_On_L
Logic Board
Logic Board J4

1+3 o o #2 J3

Mode_Sw
5,7,9 o o #10 (J3-6) Heat_Demand_In

(Switch Closed)

Logic Board J2-1
J1-4 Red

24Dcv

- +

J1 Connector

IFB
Cavity_OverTemp_H_AC
o Conv_Heat_Ena_L
o 24Acv_H
o +24Vac_H
24Vac_Rtn_L

Pwr_On U7 Ing_Mod

Heat_Demand (Active for standing Pilot)

Steam_Demand U8 Ing_Mod

24Acv

- +

Delime
T1
Transformer
24Vac_Rtn
# 6

J1-1

J1-4

Input
Amber
LED

# 6 &

# 9

Main
valve

both

24Vdc_Rtn

No

J1-7

J4-3
J4-4 J4-1

P

P

Green

Output

LED

# 13

J4-2
J4-1

PV

THS

MV

PV

THS

MV

Sense

FIGURE 4

26

BCX14G

J1-6

#7

#14

Com

J6-5 J6

-

2

Sense

BCX14G STEAM FLOW CHART

+24Vdc_H
Logic Board
24Vdc_Rtn_L J1 TMR1
CR1
24Vdc_Rtn_L A2 15

+24Vdc_H

Oven On Oven_On_L
Logic Board
Logic Board J4

1+3 o o #2 J3

Mode_Sw
5,7,9 o o #8 (J3-2) Heat_Demand_In_L

(Switch Closed)

Logic Board J2-1

24Dcv

- +

J1-1 BK
J1 Connector

IFB
Boiler_OverTemp_H_AC
o Boiler_Ena_L
o 24Acv_H
o +24Vac_H
24Vac_Rtn_L

Pwr_On U9 Ing_Mod

Heat_Demand (Active for standing pilot)

Steam_Demand

24Acv

- +

Delime T2 Transformer Boiler_Main_On_H_AC
24Vac_Rtn # 6

J1-1

J1-4

Input
Amber
LED

# 3 &

#6

24Vdc_Rtn

No

J1-12

J6-3
J6-4 J6-1

P

#11

Green

Output

LED

# 10

J4-6
J4-1

PV

THS

MV

Main

Gas

Valve

FIGURE 5

27

BCX14G

J1-6

Com

J4-6 J4

-

2

Sense

burners

BCX14G COMBI FLOW CHART

+24Vdc_H
Logic Board
24Vdc_Rtn_L J1 TMR1
CR1
24Vdc_Rtn_L A2 15

+24Vdc_H

Oven On Oven_On_L
Logic Board
Logic Board J4

1+3 o o #2 J3

Mode_Sw
5,7,9 o o #6 (J3-1) Heat_Demand_In_L

J2-1

IFB Heat_Ena_L
Cavity_OverTemp_H_AC
o
o 24Acv_H
o +24Vac_H
24Vac_Rtn_L

Pwr_On U7 Ing_Mod

Heat_Demand

Steam_Demand U8 Ing_Mod

Delime

J1-1

J1-4

Input
Amber
LED

# 2 &

# 6

Main
valve

both

24Vdc_Rtn

No

J1-7
J1-12
J4-3
J4-4 J4-1

P

P

#7
#11

Green

Output

LED # 13

& #10

J4-6

J4-1 J4-2

PV

THS

MV

PV

THS

MV

Sense

FIGURE 6

28

BCX14G

BCX14G DOOR SWITCH TROUBLESHOOTING

IFB

Door_Sw_Pwr_H

Door_Sw_Rtn_L

Door_Closed_H
J1-1 BK
J1 Connector
Logic Board

BK J5 Connector

BR BL

Output when door is closed
Switch will be lighted

Logic Board

J1 Connector

J1-1 BK +24Dcv_H

TMR1

IFB 13

Door_Closed_H
Y-5

CR1

Y-10
A1

J2 Connector

+24Dcv

- +

+24Dcv

- +

Y-10

J2-1

J5-3

J5-4

J5-5

FIGURE 7

29

BCX14G

BCX14G FLOAT SWITCH TROUBLESHOOTING

J8
+24Dcv_H

24Dcv_Rtn

IFB
Relay Board

SW3

The Flats are normally closed

HI_Lvl_Float_Sw

and open when the boiler is
full.

V-3 o o R15

+24Dcv should always be
applied to the float wires R-15
that activates the fill solenoid’s
relay at the IFB which applies a
24Dcv_Rtn_L to complete the

o o R15

power circuit for the water fill

BL-6

solenoid’s till the float opens.

Troubleshooting the floats drain

SW2

the boiler with the flush switch

Lo_Lvl_Float_Sw

at the IFB and check both floats
to verify normally closed and
after boiler fill up floats open.

+24Dcv_H

24Dcv_Rtn_L V-5 R-14

Fill_Solenoid_A

24Dcv_Rtn_L BL-10 R-14

Fill_Solenoid_B

J8-1

J8-2

J8-3

J8-4

J8-5

J8-6

FIGURE 8

30

BCX14G

T3

#6

BCX14G MOTOR REVERSE DIRECTION TROUBLESHOOTING

J3
Connector
IFB
24Dcv_Rtn_L

1&3 2
Mode_Sw

18 15
16

A2 A1

J1

J1-3
24Dvc_L

J1-4

I

F
B

Door_Closed_H

J2

J1-1

Inverter Drive

I

F
B

CR1
GY-12

24Dcv_L

14 13

#9
#5
#10

MOTOR

J3-1 Motor_Fwd_Ena

J3-2 Motor_Rev_Ena

J3-3 Spd_Sel_0

J3-4 Spd_sel_1

J3-5 Drv_@SetSpd

J3-7 Inv_Com

ACV

115Ac

NEU

1

2

3

4

5

L

11

12

CM2

T1

T2

FIGURE 9

31

BCX14G

BCX14G DRAIN VALVE OPERATION TROUBLESHOOTING

J8
+24Dcv_H

24Dcv_Rtn

IFB
Relay Board

Drain_Closed_H

Drain_Open_H

The drain valve in its normally
closed position should always
have 24Dcv_Rtn_L input along
with the +24Dcv_H out put
from the IFB J8 connector to
the motorized drain valve.

The drain valve opens when the
+24Dcv_H switches from J8-8

BK-20

to J8-9 then it should switch
back to close.

The drain valve will only open
when the logic board sends an
output signal to the IFB after
oven is cold and 4-5 hours of
non use, or when the flush
switch is activated at the IFB.

24Dcv_Rtn_L

OR-17

5
1

Y-9 3

J8-1

J8-2

J8-8

J8-9

FIGURE 10

32

BCX14G

LOW FLOAT LEVEL LED'S

BOILER PREHEAT TO 185F

AMBER

- INPUT LED'S

AMBER

- INPUT LED'S

GREEN OUTPUT LED'S

GREEN OUTPUT LED'S

HOT AIR MODE LED'S

STEAM MODE LED INDICATORS

AMBER

- INPUT LED'S

AMBER

- INPUT LED'S

GREEN OUTPUT LED'S

GREEN OUTPUT LED'S

BCX14G LOGIC BOARD LED INDICATOR DESIGNATIONS

LED On = INPUT

LED

Flush Disable (above 140F) J2-2

1

Combi Mode J3-1

2

Steam Mode J3-2

3

Steam On Demand J3-7

4

Spare input J3-8

5

Heat Demand J4-1

6

Boiler High limit J4-5

7

Boiler Lo_Lvl_Float

8

Convection Heat J3-6

9

DESCRIPTION

LED On = OUTPUT

10 Boiler Heat On

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid, J2-5
17 Spare Output, J3-5

LED On = INPUT

LED

Flush Disable (above 140F) J2-2

1

Combi Mode J3-1

2

Steam Mode J3-2

3

Steam On Demand J3-7

4

Spare input J3-8

5

Heat Demand J4-1

6

Boiler High limit J4-5

7

Boiler Lo_Lvl_Float

8

Convection Heat J3-6

9

DESCRIPTION

LED On = OUTPUT

10 Boiler Heat On

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid, J2-5
17 Spare Output, J3-5

LED On = INPUT

LED

Flush Disable (above 140F) J2-2

1

Combi Mode J3-1

2

Steam Mode J3-2

3

Steam On Demand J3-7

4

Spare input J3-8

5

Heat Demand J4-1

6

Boiler High limit J4-5

7

Boiler Lo_Lvl_Float

8

Convection Heat J3-6

9

DESCRIPTION

LED On = OUTPUT

10 Boiler Heat On

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid, J2-5
17 Spare Output, J3-5

LED On = INPUT

LED

Flush Disable (above 140F) J2-2

1

Combi Mode J3-1

2

Steam Mode J3-2

3

Steam On Demand J3-7

4

Spare input J3-8

5

Heat Demand J4-1

6

Boiler High limit J4-5

7

Boiler Lo_Lvl_Float

8

Convection Heat J3-6

9

DESCRIPTION

LED On = OUTPUT

10 Boiler Heat On

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid, J2-5
17 Spare Output, J3-5

Page 33

BCX14G

COMBI MODE LED'S

STEAM ON DEMAND LED'S

AMBER

- INPUT LED'S

AMBER

- INPUT LED'S

GREEN OUTPUT LED'S

GREEN OUTPUT LED'S

DRAIN VALVE OPEN LED'S

ACTIVE DELIME PUMP LED

AMBER

- INPUT LED'S

AMBER

- INPUT LED'S

GREEN OUTPUT LED'S

GREEN OUTPUT LED'S

BCX14G LOGIC BOARD LED INDICATOR DESIGNATIONS

LED On = INPUT

LED

Flush Disable (above 140F) J2-2

1

Combi Mode J3-1

2

Steam Mode J3-2

3

Steam On Demand J3-7

4

Spare input J3-8

5

Heat Demand J4-1

6

Boiler High limit J4-5

7

Boiler Lo_Lvl_Float

8

Convection Heat J3-6

9

DESCRIPTION

LED

1
2
3
4
5
6
7
8
9

LED On = INPUT

DESCRIPTION

Flush Disable (above 140F) J2-2

Combi Mode J3-1
Steam Mode J3-2
Steam On Demand J3-7
Spare input J3-8
Heat Demand J4-1
Boiler High limit J4-5
Boiler Lo_Lvl_Float
Convection Heat J3-6

LED On = OUTPUT

LED On = OUTPUT

10 Boiler Heat On > (45 Seconds) 10 Boiler Heat On

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid, J2-5
17 Spare Output, J3-5

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid, J2-5
17 Spare Output, J3-5

LED On = INPUT

LED

Flush Disable (above 140F) J2-2

1

Combi Mode J3-1

2

Steam Mode J3-2

3

Steam On Demand J3-7

4

Spare input J3-8

5

Heat Demand J4-1

6

Boiler High limit J4-5

7

Boiler Lo_Lvl_Float

8

Convection Heat J3-6

9

DESCRIPTION

LED On = OUTPUT

10 Boiler Heat On

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid, J2-5
17 Spare Output, J3-5

LED On = INPUT

LED

Flush Disable (above 140F) J2-2

1

Combi Mode J3-1

2

Steam Mode J3-2

3

Steam On Demand J3-7

4

Spare input J3-8

5

Heat Demand J4-1

6

Boiler High limit J4-5

7

Boiler Lo_Lvl_Float

8

Convection Heat J3-6

9

DESCRIPTION

LED On = OUTPUT

10 Boiler Heat On

Delime lamp Flashing / Delime Oven

11

Steam On Demand Lamp J4-3

12
13 Convection Heat On J4-3
14 Drain Valve On J3-10
15 Boiler Fill Enable, J2-3
16 Delime Solenoid On, J2-5
17 Spare Output, J3-5

Page 34

BCX14

Boiler Heat

(D11)

Heat Enable

CR8 (D81)

Fill Enable

CR10 (D101)

Boiler Drain

(D9)

CR2 (D21)

Door Closed

Oven On

Cooling Fan

CR5 (D51)

Vent

(D8)

Lights

BCX14 IFB RELAY BOARD LED DESIGNATIONS

BCX14 Interface Board

LED Designations

Part # 39672

Lights On

#1

indicate (Energized Relays) active circuits as labeled.

J1 J2

#1

J3

J4

CR1

CR3 (D31)

CR4 (D41)

CR6 (D61)

Quench Sol.

CR7 (D71)

Delime Sol.

#1

J8

J7 J6 J5

FIGURE 12

35

Test Points

Voltage AC

Black lead

Red Lead

+ DC

BCX2 (Logic Board) /

DC Power

Supply

24vdc_Rtn

terminal at power supply

BCX2 (Logic Board) /

DC Power Supply

terminal at power supply

+24vdc_H

Test Points

Black lead

Red Lead

Mode Switch to

BCX2 (Logic Board)

(BK-12)

(GY-17)

(GY-18)

(GY-15)

Test Points

Voltage AC

Black lead

Red Lead

+ DC

( IFB ) Relay Board /

Hot Air Gas Valve

24 VAC

# Components Testing

1

2

3

4

5

BCX14G - Trouble shooting test points

~ DC Voltage Test Points ~

DC Power Supply

DC Power Supply

BCX2 (Logic Board)

Power supply (N)

Power supply (-V)

J1 Connector (J1-1) BK-3

24vdc_Rtn

J1 Connector (J1-1) BK-3

(-V) Black 24vdc_Rtn

Power supply (L)

Power supply (+V)

J1 Connector (J1-4) RD-1

+24vdc

(+V) Red +24vdc_H

J1 Connector (J1-4) RD-1

115 VAC

24 VDC

24 VDC

24 VDC

24 VDC

6

# Components Testing

1

2

3

4

5

6

#

1

2

3

4

5

6

7

8

9

10

(IFB) Relay Board

~ Cool Down Operation at Low Speed ~

Motor Speed Inverter

Motor Speed Inverter to

BCX2 (Logic Board)

Motor Speed Inverter to

BCX2 (Logic Board)

Motor Speed Inverter to

BCX2 (Logic Board)

Motor Speed Inverter to

BCX2 (Logic Board)

~ Hot Air Mode with Heat Light Active ~

Components Testing

BCX2 (Logic Board)

BCX2 (Logic Board)

BCX2 (Logic Board)

(T1) Top Transformer

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

J7 Connector (J7-2) Black

J7 Connector (J7-1) Red

24 VDC

( N )

Mode Sw Terminal #4 (GY-7)

( Inverter ) Terminal #CW2

( Inverter ) Terminal # 3

( Inverter ) Terminal # 2

( Inverter ) Terminal # 11

( L )

J1 Connector J1-4 (RD-1)

J1 Connector J1-4 (RD-1)

J1 Connector J1-4 (RD-1)

J1 Connector J1-4 (RD-1)

J1 Connector J1-4 (RD-1)

Voltage AC

+ DC

115 VAC

24 VDC

24 VDC

24 VDC

24 VDC

24 VDC

J3 Connector (J3-6) GY-3

J4 Connector (J4-1) V-6

J4 Connector (J4-2) Y-1

Terminal #6

(WH-2)

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

(IFB) J4 Connector (J4-2) W-2 Hot Air Gas Valve ( MV) BL-1

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

Terminal #4

(RD-2)

J4 Connector (J4-1) RD-2

J4 Connector (J4-3) OR-22

U7 HA Spark Box (THS-2)

J4 Connector (J4-4) OR-23

J4 Connector (J4-6) BL-1

24 VDC

24 VDC

24 VDC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

36

Test Points

Voltage AC

Black lead

Red Lead

+ DC

( IFB ) Relay Board /

Steam Gas Valve

24 VAC

Test Points

Black lead

Red Lead

+ DC

J4 Connector (J4

-

6) BL

-

2

(Active 25%)

24 VDC

( IFB ) Relay Board /

Hot Air Gas Valve

24 VAC

(T2)

Bottom Transformer

( IFB ) Relay Board /

#

1

2

3

4 (T2) Bottom Transformer

5

6

7

8

9

10

Components Testing

BCX2 (Logic Board)

BCX2 (Logic Board)

BCX2 (Logic Board)

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

~ Steam Mode with Heat Light Active ~

J3 Connector (J3-2) GY-2

J4 Connector (J4-1) V-6

J4 Connector (J4-6) BL-2

Terminal #6

(WH-1)

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

(IFB) J6 Connector (J4-2) W-2 Steam Gas Valve ( MV) RD-16

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

Terminal #4

(RD-1)

J6 Connector (J6-1) RD-1

J6 Connector (J6-3) Y-6

U9 Spark Box (THS-2) Y-2

J6 Connector (J6-4) Y-3

J6 Connector (J6-5) RD-16

24 VDC

24 VDC

24 VDC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

#

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Components Testing

BCX2 (Logic Board)

BCX2 (Logic Board)

BCX2 (Logic Board)

BCX2 (Logic Board)

(T1) Top Transformer

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay Board

Steam Gas Valve

~ Combi Mode with Heat Light Active ~

J3 Connector (J3-1) GY-1

J4 Connector (J4-1) V-6

J4 Connector (J4-2) Y-1

Terminal #6

(WH-2)

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

J4 Connector (J4-2) W-2

(IFB) J4 Connector (J4-2) W-2 Hot Air Gas Valve ( MV) BL-1

Terminal #6

(WH-1)

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

J6 Connector (J6-2) W-1

(IFB) J6 Connector (J4-2) W-2 Steam Gas Valve ( MV) RD-16

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

Terminal #4

(RD-2)

J4 Connector (J4-1) RD-2

J4 Connector (J4-3) OR-22

U7 Spark Box (THS-2)

J4 Connector (J4-4) OR-23

J4 Connector (J4-6) BL-1

Terminal #4

(RD-1)

J6 Connector (J6-1) RD-1

J6 Connector (J6-3) Y-6

U9 Spark Box (THS-2) Y-2

J6 Connector (J6-4) Y-3

J6 Connector (J6-5) RD-16

Voltage AC

24 VDC

24 VDC

24 VDC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

24 VAC

37

Test Points

Voltage AC

Black lead

Red Lead

+ DC

( IFB ) Relay Board

( IFB ) Relay Board

(To Fill Solenoid)

(To Fill Solenoid)

Test Points

Voltage AC

Black

lead

Red Lead

+ DC

( IFB ) Relay Board

( IFB ) Relay Board

( IFB ) Relay

Board

Test Points

Voltage AC

Black lead

Red Lead

+ DC

Test Points

Voltage AC

Black lead

Red Lead

+ DC

( IFB ) Relay Board /

Delime Pump

#

Components Testing

1

2

3

4

5

6

7

( IFB ) Relay Board

(Hi_Lvl Float Closed)

( IFB ) Relay Board

(Hi_Lvl Float Open)

(Lo_Lvl Float Closed)

( IFB ) Relay Board

(Lo_Lvl Float Open)

( IFB ) Relay Board

(Hi_Lvl Float Closed)

( IFB ) Relay Board

(Lo_Lvl Float Closed)

~ Boiler Float Level Troubleshooting ~

J8 Connector (J8-2) BK-4

J8 Connector (J8-2) BK-4

J8 Connector (J8-2) BK-4

J8 Connector (J8-2) BK-4

J8 Connector (J8-2) BK-4

J8 Connector (J8-5) V-5

J8 Connector (J8-6) Bl-10

J8 Connector (J8-1) RD-4

J8 Connector (J8-3) V-3

J8 Connector (J8-3) V-3

J8 Connector (J8-4) BL-6

J8 Connector (J8-4) BL-6

J8 Connector (J8-1) RD-4

J8 Connector (J8-1) RD-4

24 VDC

24 VDC

0 VDC

24 VDC

0 VDC

24 VDC

24 VDC

#

1

2

3

4

5

#

1

2

#

1

2

3

4

5

6

~ Drain Valve Troubleshooting ~

Components Testing

( IFB ) Relay Board

(Drain Valve Closed)

( IFB ) Relay Board

(Drain Valve Closed)

(Drain Valve Open)

(Drain Valve Open)

~ Steam on Demand Troubleshooting ~

J8 Connector (J8-2) BK-4

J8 Connector (J8-9) Y-9

J8 Connector (J8-8) OR-17

J8 Connector (J8-8) OR-17

J8 Connector (J8-9) Y-9

J8 Connector (J8-1) RD-4

J8 Connector (J8-1) RD-4

J8 Connector (J8-1) RD-4

J8 Connector (J8-1) RD-4

J8 Connector (J8-1) RD-4

24 VDC

24 VDC

0 VDC

24 VDC

0 VDC

Components Testing

BCX2 (Logic Board)

BCX2 (Logic Board)

~ Delime Pump Troubleshooting ~

J3 Connector (J3-7) BL-1

(Activated Switch)

J4 Connector (J4-3) V-2

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

24 VDC

24 VDC

(Activated by Steam on Demand Switch in Cool Down Mode)

Components Testing

BCX2 (Logic Board)

BCX2 (Logic Board)

( IFB ) Relay Board

( IFB ) Relay Board

Delime Pump

J3 Connector (J3-7) BL-1

(Activated Switch)

J4 Connector (J4-3) V-2

J8 Connector (J8-2) BK-4

J8 Connector (J8-11) V-13

J1 Connector (J1-4) RD-1

J1 Connector (J1-4) RD-1

J8 Connector (J8-1) RD-4

J8 Connector (J8-1) RD-4

(IFB) J8 Connector (J8-2) BK-4 Pump Connector (RD-12)

(V-13)

(RD-12

38

24 VDC

24 VDC

24 VDC

24 VDC

24 VDC

24 VDC

Symbol Description Diagram

SYM

DESCRIPTION

CON4

24DCV Power Supply

CR1

Relay, Oven, On/Off

DS5

Power On Light

DS6

Heat Demand Light

DS7

Low Water light

DS8

Delime Light

DS9

Steam On Demand Light

IFB Interface Relay Board

K1 Hot Air Contactor

K1_Aux

Hot Air Auxiliary Contact

K2 Steam Contactor

K2_Aux

Steam Auxiliary Contact

MTR1

Convection Fan Motor 220V

MTR2

Cooling Fan

MTR3

Boiler Drain Valve

Prb1

-

1 Cavity Temperature Probe

Prb2

-

1 Meat

Temperature Probe

R1 Temperature Control Potentiometer

R7 Steam On Demand Potentiometer

RT1

Thermistor 5 Ohm @ 25C

SW1

Mode Selector Switch

SW2

Light Switch

SW3

Vent Switch

SW4

Cavity/Boiler High Limit

SW6

Heat Cut off Switch

SW7

Flush Disable

Switch

SW8

Door Switch Proximity

SW9

Convection Motor Rotary Switch

SW10

Steam On Demand Switch

T1 Hot Air Transformer 208/24ACV

T2 Steam

Transformer 208/24ACV

TR1

Terminal Block Incoming Power Supply

TB2

Terminal Block Oven Interior Lights

TC1

Temperature Control

TMR1

Programmable Motor Reverse Timer

U6 Programmable Motor speed Inverter

U7 Hot Air Ignition Spark Module 1

U8 Hot Air

Ignition Spark Module 2

BCX-2

24DCV BX Series BC2 Logic Board

SW11
SW15
SW16

U9

Boiler Preheat Switch open @ 185
Cooling Fan Switch Close @ 110
Quench Thermostat Close @ 150

Steam Ignition Spark Module

39

Notes:

Page 40

d01

▲

b12

▼

A--

A01

▼

4.00

▲

0

2

b12

A01

▲

b22

▲

A02

▼

3.80

▲

0

1

A02

▲

C03

▲

A20

▼

0

2

▲

20.0

C03

A20

▲

C04

▲

A21

▼

0

3

▲

30.0

C04

A21

▲

C05

▲

A22

▼

0

5

▲

40.0

C05

A22

C--

▲

A23

▲

F02

▲

50.0

▼

8.

0

A23

F02

▲

A51

▲

F03

▲

0

1

▲

12.0

A51

F03

▲

A52

▲

d01

Programming Complete

0.

0

▲

push + hold until

10.0

A52

Motor Inverter Error Codes

▲

A54

E_01

E_02

▲

60E_03

A54

E_04

▲

A55

E_05

E_07

▲

6.0E_08

A55

E_09

▲

b01

E_11

E_22

▲

02E_12

b01

E_13

▲

b02

E_14

E_15

▲

25.0

E_21

STR

to save

b02

E_35

BX / BCX Man Control - L100 Parameters for 50816 Inverter Drive

NOTE: Oven connected to power, mode switch in "OFF" position, display should read " 0.0".

PRESS PRESS

FUNC

keep pushing until

FUNC twice

keep pushing until

STR to save

once

FUNC once

keep pushing until

STR

keep pushing until

FUNC once

push + hold until

STR to save

once

FUNC once

push + hold until

STR to save

once

FUNC

push + hold until

STR to save

once

FUNC once FUNC once

push + hold until

STR to save

keep pushing until

FUNC once FUNC once

once

STR to save

once

FUNC once FUNC

DISPLAY DISPLAY

keep pushing until

FUNC once

keep pushing until

STR to save

keep pushing until

FUNC once

push + hold until

STR to save

push + hold until

FUNC once

keep pushing until

STR to save

once

FUNC once

keep pushing until

STR to save

once

FUNC once

keep pushing until

STR to save

FUNC ( twice )

keep pushing until

keep pushing until

STR to save

once

keep pushing until

STR to save

keep pushing until

STR to save

FUNC once

push + hold until

STR to save

FUNC once

push + hold until

STR to save

push + hold until

FUNC once

STR to save

FUNC once

push + hold until

twice

once

once

once

Over current event while at constant speed
Over current event during deceleration
Over current event during acceleration
Over current event during other conditions
Overload protection
Over-voltage protection
EEPROM error
Under-voltage error
CPU error
CPU error
External trip
USP
Groung Fault
Input over-voltage
Inverter thermal trip
Thermistor

41

PRESS

STORED FAULT CODES

PRESS

d01

E??

d08

E??

d09

0.

0

E_01

E_03

E_05

E_08

E_11

E_12

E_14

E_21

BX / BCX Man Control - Stored Fault Codes for 50816 Inverter Drive

NOTE: Oven connected to power, mode switch in "OFF" position, display should read " 0.0".

DISPLAY DISPLAY

FUNC

▲ keep pushing until d 0 8

FUNC once

Record Code

FUNC once

▲ keep pushing until d 0 9

FUNC once

Record Code

FUNC once

▼ keep pushing until d 0 1

FUNC once

COMPLETED

Motor Inverter Error Codes

Over current event while at constant speed

E_02 Over current event during deceleration

Over current event during acceleration

E_04 Over current event during other conditions

Overload protection

E_07 Over-voltage protection

EEPROM error

E_09 Under-voltage error

CPU error

E_22 CPU error

External trip

E_13 USP

Groung Fault

E_15 Input over-voltage

Inverter thermal trip

E_35 Thermistor

45

5

Flush_ Disable

SW7

1 2

B_2 4Vdc [0..2]

J1

+24Vdc

9

9

P1

RD-

R/BK-2 , 22a wg, 3 00V, twisted pair

+24Vdc_ Rtn

J1

10

10

P1

BK-

BK-8
BK-13

Mode_Sw

BK-13

BK-13

BK-7

5,7,9

D D

C C

B B

39669

+24Vdc_ Rtn

1+3

SW1

39674

SW10

Steam _On_Demand

2
4

6
8
10

R8595

R10338

N. C.

OR-2

Cool_Down

Combi

Oven _On_L

Steam

R7
POT

Convection

Steam_On_Demand

BR-2BK-11

J2

J1

4

6

4

P2

P1

BK-3

RD-1

OR-1
GY-7

GY-1
GY-2
BK-1
BK-2

GY-3
BL-1

Prb2-1

W

Optional

Produc t 1K

RTD1

t

39783

Prb2-2

BK

6

BR-2

W/BK-2

1

RD-8

Prb1-1

W

Prb1-2

BK

GY-7

GY-20

GY-22

OR-9
OR-4

J2

1

P2

OR-3

GY-5
V-6
GY-6

OR-1,3

BR-1

OR-14

Cav ity 1K

RTD1

t

39800

R11271

TMR1

18
16

DCB51CM24

U4

J1

1

+24Vdc_Rtn

2

Flush_Disable

3

Fill_Ena

4

+24Vdc

5

Boiler_Delim e_Ena_L

6

Oven_On_L

J3

1

Combi

2

Steam

3

SOD_Pot_W

4

SOD_Pot_pwr

5

Spare

6

Hotair

7

SOD_PB_Ena_L

8

Spare

9

NC

10

Drain_Ena_L

11

NC

12

NC

BCX-2

TC1

J2-2

24V

J2-1

24_Rtn

W

W/BK-1

P1 J 1

Probe2

Probe2

J3-3

J3-4

Prb2-1

Prb2-2

BK

4

OR-3

OR-9

15

Y1
A1A2

JP1- j umper Off for
Electr ic On for Gas

Heat_Demand _In

Conv_Heat_Ena_ L

SOD_Lamp

Delime_Lam p

Boiler_Overtem p

Boiler_Ena_L

Spare

Lo_Water

R2

R1

39669

3

3

J1P1

2

2

5

5

J2P2

39673

Series 1 30

Probe1

J3-1

J3-2+J4-1

Prb1-1

P2 P2

443

J2 J2

W

BK

Probe1

3

NO

K1

COM

POT

CTR

J4-2

J4-3

Prb1-2

Or

Y

V

RTN

Y-10

JP1
JP1

J4

J2-3
J2-4

3

CR 1

4

12

8

BL-2

GY-19

GY-18

Y-10
OR-4, OR-21

J1

7

7

P1

1
2

V-6

1

Y-1

2

V-2

3

V-3

4

GY-4

5

BL-2

6
7

V-4

8

V-6

BK-6

18234

R1
POT

GY-6

GY-5

BR-1

P2 J1

8

8

J2

Y-5

V-2
V-3
V-5
V-7

P1

1

1

BK-9

OR-8

OR-21

Stea m_Demand_Lamp
Delim e_Lamp
Low_Water
Heat_ Demand_I N

BK-5
BK-9

BK-10

BK-5
BK-10

BK-14 V-11

3

11

BL-3

7
2

10

6
1

9

5

A1+

13
14

A2-

39786

39682

Quench_Ena_L

Door_C losed_H

Boiler _Overtemp_H
Lo_Wat er_H

39675

C

0

C

1

SW2

2+4

SW3

2+4

SW15

1 2

BL-4

Off

On
3

1

Closed

N.O .

1 2

SW11 N .C.

SW9

4
2

SW _Rotar y_BCD

Light_Sw

39791

Vent_Sw

39791

Coolin g Fan
R8015
Close on ri se @110F

Door _Sw_Proximity

Boiler Preh eat Control,
Open o n ris e at 185°F

Y-1

J2P2 R/BK-4 , 22a wg, 3 00V, Twisted Pair

9 9

GY-21

GY-10

1

GY-9

3

GY-8

Open

GY-11

GY-19

GY-18

GY-17

GY-14

GY-15

BK-12

GY-12
GY-13

GY-10

J1

GY-8

GY-9

7

7

J1

P1

6

6

P1

J1

5

5

P1 J1

BL-3

GY-11

8

8

P1

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Mtr_Spd_Sel _Bit_0_Ena_L

Mtr_Spd_Sel _Bit_1_Ena_L

Drv@ SetSpd_L

Drv_ Input_ Com

Oven_On_L

Fwd_Ena_L

Rev_Ena_L
Spd_Se l_Bit_0
Spd_Se l_Bit_1
Conv_Heat_Ena_L

Coolin g_Fan

Lights

Boiler _Ena_L

Boiler_Delime_Ena_L

Fill_E na_L

Boiler_Drain_Ena_L

Quench _Ena_L

Vent

Buzzer_L

Y-5

Drv@Spd

GY-4
V-4

V-12

BK-14

BR
BL
BK

R
BK
R
BK

1

Mtr_Fwd_En a

2

Mtr_Rev_Ena

3

Spd_Sel_0

4

Spd_Sel_1

5

Drv_@SetSpd

6

Inv_Com

7

Inv_Com

8

Inv_Com

J1

1

Y0

2

Y1

3

Y2

4

Y3

5

Y4

6

Y5

7

Y6

8

Y7

9

Y8

10

Y9

11

Y10

12

Y11

13

Y12

14

Y13

15

Y14

16

Y15

17

Y16

18

Y17

19

Y18

20

Y19

J2

1

X0

2

X1

3

X2

4

X3

5

X4

6

X5

7

X6

8

X7

9

X8

10

X9

11

X10

12

X11

13

X12

14

X13

15

X14

16

X15

17

X16

18

X17

19

X18

20

X19

J5

1

+24Vdc

2

+24Vdc_Rtn

3

Door_Sw_Pw r

4

Door _Sw_Rtn

5

Door_Closed_H

6

Cooling_Fan

7

Cooling _Fan _Rtn

8

Lights

9

Lights_Rtn

10

Unused

U5

BCX_IFB_01

Br Bk

SW8

39337

Bl

BKBLBR

R/BK-5 , 22a wg, 3 00V, Twisted Pair

R/BK-3 , 22a wg, 3 00V, Twisted Pair 22awg , 300V,

2

Mtr_2

1 2

+

R

Cooling _Fan

IFB

39672

M9616

A

Hotair_24Vac

Hotair_24Vac _Rtn

Hotair_Pilot_ Ena_H

Main_Burner _Ena_H_AC

Main_Burner _On_H_AC

Buzzer_24Vac

Cavity_Overtemp_H_ AC

Boiler_24Vac

Boiler_24Vac _Rtn

Boiler_Pilot_ Ena_H

Boiler_Ena_H

Boiler_Main _On_H_AC

Boiler_Overtem p_H_AC

+24Vdc_Rtn
Hi_Lvl_Float
Lo-Lvl_Float

Quench_Sol
Drain_Close

Drain_Open

Delime_Sol

+24Vdc_Rtn

+24Vdc_Rtn

-

BK

R_Main

+24Vdc

Fill_Sol_A
Fill_Sol_B

Vent_Sol

+24Vdc

Gnd

1

Hota ir_24Vac [ 0..2]

R/W-2, 22aw g twisted pair

Boil er_24Vac [0..2]

R/W-1, 22aw g twisted pair

J4J3

24Vac

1

24Va c_Rtn

2
3
4
5
6
7
8

J6

J8

J7

1
2
3
4
5
6

+24Vdc

1

+24Vdc _Rtn

2
3
4
5
6
7
8
9
10
11
12

+24Vdc

1

+24 Vdc _Rtn

2
3

24Vac
24Va c_Rtn

Quench_Ena_L

R

BK

OR-22

Hotair_ Pilot_Ena_H

OR-23

Main_Burn er_Ena_H_AC

BL-1

Main_Burn er_On_H_AC

OR-5

Cav ity_O verTemp _H_AC

Y-6

Boiler_Pi lot_Ena_H

Y-3

Boiler_En a_H

RD-16

Boiler_Mai n_On_H_AC

Y-7

Boil er_OverTemp_H_AC

SW3

V-3

Sw, Float , SPST, N.C.

BL-6

V-5

BL-10

OR-18

GY-21

OR-17

Y-9

GY_16

V-13

R/BK-1 , 22a wg, 3 00V, Twisted Pair

A_24 Vdc [0..2]

SW2

1 2

Boiler Fill Solenoid_A

1 2

Boiler Fill Solenoid_B

1 2

Quench Sol enoid

SW16

1 2

Quench
39806
Close on ri se @150F

5

Mtr_3

3

Motori zed Valve

1 2

Vent_Sol

1 2

Delime S olenoid

Hi_Lvl
R10472

Lo_Lvl

39796

N.O .

R11514

A

39793

1

39324

39793

R-15

R-15

R-14

R-14

R-13

BK-19

BK-20

BK-21

R-12

+24Vdc_ Rtn

+24Vdc

1

TB2

R

1_A

BK-4

RT1

THERMISTOR

RD-5

1

A A

5

39689 (X 5)

Oven _On_L

2

DS5
Pwr_On

OR-2

Heat_ Demand_I N

4

RD-4

1

2

DS6
Heat_ Demand

V-7

Steam _Demand_Lamp

RD-3

1

2

DS9
Stea m_Demand

V-2

Delime_ Lamp

RD-2

1

DS8
Delim e

2

V-3

Low_Water

1

2

DS7
Low Wa ter

V-5

3

5 ohm @25C

39998

t

1_B

2_A
2_B

BK

3_A
3_B

4_A
4_B

5_A
5_B

2

Term_Blk_5p

39378

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

2

1
2

1
2

1
2

Title

BCX14G Manual Control Schematic

Size Do cument Number Rev

C

Dat e: Sheet

39680

Halogen La mp-12V

D0119 (X 4)

1

of

1 2Wed nesday, Apri l 18, 2007

09

5

4

3

2

1

LED ON = True LED OFF = Fal se

INPUT - AMBER LED'S

LED #

1

2

D D

3

4

Line Cord

1 2

3

Grn

J3

R10645

BK BL

5

6

7

8

9

TB1

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

L1_A

L1_B

L1_C

L1_D

C C

Description

Flush Disable (Boiler above 140F)
J2-2

Combi Mode J3-1

Steam Mode J3-2

Steam Demand J3-7

Spare Input J3- 8

Heat Demand J4-1

Boiler Hi_Limit J4-5

Boiler Lo_Lvl_Float

Convection Mode J3-6

LED ON = True LED OFF = Fal se

OUTPUT - GREEN LED'S

LED #

10

11

12

13

14

15

16

17

Description

Boiler Heat On

Delime Lamp - Flashing, Time to
delime J4-4

Steam On Demand Lamp, J4-3

Convection Heat On, J4-2

Drain Valve Open, J3-10

Boiler Fill Enable , J2-3

Delime Solenoid, J2-5

Spare Output, J3-5

Hotair_ Pilot_Ena_H

Cav ity_O verTemp _H_AC

Main_Burn er_Ena_H_AC

Main_Burn er_On_H_AC

OR-22

OR-5

WH-2

OR-23

BL-1

36441

SW4
Cav ity_ Hi_Lmt

11

WH-

U7 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

1 2

Pilot Gas Solenoid

U8 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Com1

R6490

Com1

Com2

Com2

Spark

G770-M GC-3

Com3

Spark

G770-M GC-3

Com3

20821

SPARK GAP .125"

Com4

F.S.

1

20821

SPARK GAP .125"

Com4

12

14

OR-6

OR-2

OR-20

WH-

WH-3 WH -7

OR-6

OR-7

OR-20

Y-8

Y-2

Y-3

WH-3

OR-7

1 2

Pilot Gas Solenoid

30005

BL-1

1 2

Main Gas Solenoid

U9 Ign_Mod

1

PV

2

THS

3

MV

WH-

4

Sense

5

Com

Y-8

1 2

Pilot Gas Solenoid

RD-16

1 2

Main Gas Solenoid

Title

BCX14G Manual Control Schematic

Size Do cument Number Rev

Dat e: Sheet

Br-1, 14awg, 600V

CB1

20 Am p

1 2

39688

Br-5, 14awg, 600V

L1_A

L1_B

L1_C

L1_D

B B

Br-2, 14awg, 600V

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L
Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

A A

Drv@ SetSpd_L

Drv_ Input_ Com

G/Y-1, 14awg, 600V

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Bl-2, 14awg, 600V

Bl-1, 14awg, 600V

1 2

Br-4, 18awg, 600V

Bl-4, 18awg, 600V

Bl-6, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

GY-19
GY-18
GY-17
GY-14

GY-15

BK-12

Hota ir_24Vac [ 0..2]

38303

39669

SW6

Heat Cut_O FF

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

5

Bk-1, 18awg, 600V

Bl-5, 18awg, 600V

1
2

Gnd

3

AC_1

1

NEU

2

GND

3

P24

1

1

2

2

3

3

4

4

5

5

6

L

7

BK-13

1

11

2

12

3

CM2

4

FM

5

L

6

OI

7

O

8

H

Bk-2, 18awg, 600V

24Vdc Power Supply

N

39338

240V

120V

COM

240V

120V

COM

Inverter Drive

T1

2

3 6

38303

T2

2

3 6

T1

1

T2

1

T3

1

Pre_Se t Speeds:

binary select:

24Vac

41

24Va c_Rtn

24Vac

41

24Va c_Rtn

+

-L
+M9608

-

CON 4

R1, 14 awg, 600V

W1, 14 awg, 600V

Bk3, 1 4awg, 600V

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

4

R/W-2, 22aw g twisted pair

WH-2

Boil er_24Vac [0..2]

R/W-1, 22aw g twisted pair

WH-1

+24Vdc
+24Vdc _Rtn
+24Vdc
+24Vdc _Rtn

R/BK-2 , 22a wg twisted pair

R/BK-1 , 22a wg twisted pair

Br

1

Bl

2

Bk

3

+24Vdc

+24Vdc_ Rtn

A_24 Vdc [0..2]

B_24 Vdc [0..2]

MTR1

39332

Motor

R2630

SW4
Boiler_Hi _Lmt

12

11

Boiler_Pi lot_Ena_H

Boil er_OverTemp_H_AC

Boiler_En a_H

Boiler_Mai n_On_H_AC

Wiring Harn ess Reference:

3

Y-6

Y-7

Y-3

RD-16

50030 - Hi Volta ge Wiring Harness

50032 - Lo Volta ge Wiring Harness

50109 - Fro nt Co ntrol Panel Wiring Harness

2

14

Spark

G770-M GC-3

Com1

Com2

Com3

39680

WH-5

F.S.

1

20821

SPARK G AP .125"

Com4

WH-6

F.S.

1

of

1

1 2Wed nesday, Apri l 18, 2007

09

5

4

3

2

1

15

11

21

A1+

A2-

SW9

SW2

SW3

SW15

1 2

SW16

1 2

DS7
Low Wa ter

CR 2

39786

Bl

1

2

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

18

16

12

14
22

24

Low

High

Off

On

Open

Closed

N. O.

N. O.

39337

Mtr_Spd_Sel _Bit_0_Ena_L

Mtr_Spd_Sel _Bit_1_Ena_L

Mtr@SetSpd_L

L100_Inpu t_Com_L

Boiler Preh eat Control,
Open o n ris e at 185°F

1 2

SW11 N .C.

39682

Mtr_Fwd_L
Mtr_ Rev_L

Conv_Heat_Ena_L

Door _Closed_H

Boiler_O verTemp

Buzzer_L

3

Low_Water

Invert er_Drive

J3

1
2
3
4
5
6
7
8

733-338

WAGO

J1

Y0

1

Y1

2

Y2

3

Y3

4

Y4

5

Y5

6

Y6

7

Y7

8
9
10

Y8

11

Y9

12

YA

13

YB

14

YC

15

YD

16

YE

17

YF

18
19
20

499922-4

J2

X0

1

X1

2

X2

3

X3

4

X4

5

X5

6

X6

7

X7

8
9
10

X8

11

X9

12

XA

13

XB

14

XC

15

XD

16

XE

17

XF

18
19
20

499922-4

J5

1
2
3
4
5
6
7
8
9
10

733-340

RT1

THERMISTOR

5 ohm @25C

39998

Mtr_Fwd_Ena_L
Mtr_Rev_Ena_L
Mtr_Spd_Sel_Bit_0_Ena_L
Mtr_Spd_Sel_Bit_1_Ena_L
Mtr_@SetSpd_L
L100_Terminal_3
L100_Input_Com_L
L100_Output_Com_CM2

Input from Contr oller YO - YF Output s to Cont roller XO - XF

+24Vdc
+24Vdc _Rtn
+24Vdc _Door_Sw
+24Vdc _Rtn_Door_Sw
Door_C losed_H
Coolin g_Fan
Coolin g_Fan_Rtn
Lights
Lights _Rtn

Mtr_2

1 2

+

Coolin g _Fan

t

2
1

Halogen La mp-12V

D0119 (X 4)

2
1

Halogen La mp-12V

-

-

B

A

RE V E CN REV ISI ONS D A TE

GA GE

MA TL

M9616

A

-

__ _-__ _

__ _-__ _

B1 0-0 05

B0 9-0 83

-

-

39672

Halogen La mp-12V

Halogen La mp-12V

Hotair _Ign_Ctrl

Hotair_24Vac
Hotair_24Vac_Rtn
Hotair _Pilot_Ena_H
Main_B urner _Ena_H_AC
Main_B urner _On_H_AC

Cavity _Over temp_H_AC

Boiler _Ign_Ctrl

Boiler_24Vac
Boiler_24Vac_Rtn
Boiler _Pilot_Ena_H
Boiler_Ena_H
Boiler_Main_On_H_AC
Boiler_Overtemp_H_AC

Soleno id Connector

+24Vdc
+24Vdc _Rtn
Hi_Lvl _Float
Lo_Lvl _Float
Fill_S ol_A
Fill_S ol_B
Quench _Sol
Drain_ Closed
Drain_ Open
Cavity _Vent_Sol
Delime _Sol
+24Vdc _Rtn

Boiler Manual Drain

2
1

2
1

-

-

-

­WA TER S EN SOR BOA RD

­IN IT IAL R ELE ASE

-

2

J4

1
2
3
4
5
6
7
8

733-338

J6

1
2
3
4
5
6

733-336

J8

1
2
3
4
5
6
7
8

9
10
11
12

733-342

J7

1
2
3

24Vdc Pwr

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED

.XX X . XX A NGULAR HOLE
±.015 ±.03 ± 1° ±.005

Hotair _24Vac
Hota ir_24Vac_Rtn

Hotair_ Pilot_Ena_H

Main_Burn er_Ena_H_AC

Main_Burn er_On_H_AC

Buzzer_24VAC

Cav ity_O verTemp _H_AC

Boiler_2 4Vac
Boiler_2 4Vac_Rtn
Boiler_Pi lot_Ena_H

Boiler_Mai n_On_H_AC
Boil er_OverTemp_H_AC

+24Vdc

24Vd c_Rtn

__- __-__

__- __-__

04- 29-10

06- 18-10

Boiler_En a_H

53247

SW3

52750

WATER
LEVEL
SENSOR

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

MH

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

MH

Title

APR BY

SCHEM ATIC, BCX14G, MANUAL

DW G
BY

AP R

MH

BY

Br

Bl Bk

1 2

Boiler Fill Solenoid_A

39796

1 2

Boiler Fill Solenoid_B

1 2

Quench Sol enoid

R

F

DATE

DATE

R11514

Mtr_3

A

Motori zed Valve

39324

Vent_Sol

1 2

39793

1 2

Delime S olenoid

06-18-10
06-18-10 NONE

39793

SHEET

SCALE

2

HI GH
REL AY

HI_BRN
HI_BLK HI_K2_+
HI_BLU

SENS OR
INP UT

HI_K2_COM

LO_K1_+

LO_K1_COM

LOW
REL AY

220/24

RETURN

DRAWING NUMBER REV

31MH

OF

1

52853 B

+24Vdc

J1

1

Boiler_Fi ll_Ena_L

Flush_ Disable

SW7

1+3

Mode_Sw

5,7,9

39674

R8595

1 2

39669

SW1

SW10

Steam _On_Demand

N. C.

2
4

6
8
10

R10338

Cool_Down

Combi

Boiler_Del ime_Ena_L

Steam

Convection

R7
POT

Steam_On_Demand

Oven _On_L

Mtr_Fwd_Ena_L

D D

C C

24Vd c_Rtn

2
3
4
5
6

733-336

J3

1
2
3
4
5
6
7
8
9
10
11
12

733-342

LED ON = True LED OFF = Fal se

INPUT - AMBER LED'S

LED #

1

2

3

4

B B

5

6

7

8

9

Description

Flush Disable (Boiler above 140F)
J2-2

Combi Mode J3-1

Steam Mode J3-2

Steam Demand J3-7

Spare Input J3- 8

Heat Demand J4-1

Boiler Hi_Limit J4-5

Boiler Lo_Lvl_Float

Convection Mode J3-6

Oven _On_L

BC-2 IFB

Flush_ Disable
Fill_E nable

Door _Closed_H

Oven _On_L

J4

Spare_output

Spare_Input

Boiler_Drain_Ena_L

39669

Mtr_Fwd_L
Mtr_ Rev_L

R11271

TMR1

18
16

DCB51CM24

1
2
3
4
5
6
7
8

733-338

15

Y1
A1A2

Door _Closed_H

Heat_ Demand_I N

Steam _Demand_Lamp
Delime_ Lamp
Boiler_O verTemp

Low_Water

Boiler_Drain_Ena_L

Boiler_Del ime_Ena_L

Boiler_Fi ll_Ena_L

39675

Speed Sel

39791

Light_Sw

39791

Vent_Sw

R8015

Coolin g Fan

Close on ri se @110F

39806

Quench

Close on ri se @150F

Door _Sw_Proximity

Br Bk

SW8

LED ON = True LED OFF = Fal se

OUTPUT - GREEN LED'S

LED #

10

11

12

13

A A

14

15

16

17

Description

Boiler Heat On

Delime Lamp - Flashing, Time to
delime J4-4

Steam On Demand Lamp, J4-3

Convection Heat On, J4-2

Drain Valve Open, J3-10

Boiler Fill Enable , J2-3

Delime Solenoid, J2-5

Spare Output, J3-5

5

+24Vdc

39689 (X 5)

Oven _On_L

1

2

DS5
Pwr_On

Heat_ Demand_I N

1

2

DS6
Heat_ Demand

Steam _Demand_Lamp

4

1

2

DS9
Stea m_Demand

Delime_ Lamp

1

DS8
Delim e

2

Low_Water

5

4

3

2

1

20821

SW4

Cav ity_ Hi_Lm t

39673

TC1

24V
24_Rtn

Probe2

J3-4

Probe2

J3-3

Series 1 30

Probe1

Probe1

J3-1

J3-2+J4-1

J2-3

NO

K1

J2-4

COM

POT

CTR

RTN

J4-2

J4-3

Heat_ Demand_I N

Cav ity_O verTemp _H_AC

24Vd c_Rtn

Hotair_ Pilot_Ena_H

Hota ir_24Vac_Rtn

D D

J2-2
J2-1

36441

P.V.

1

THS

2

MV

3

SNS

4

COM.

5

1

Igniti on Control

1

SPARK GAP .125"

F.S.

1

Optional

Produc t 1K

RTD1

t

39783

Cav ity 1K

RTD1

t

39800

R1
POT

18234

Hota ir_24Vac_Rtn

1 2

Pilot Gas Solenoid

R6490

Main_Burn er_Ena_H_AC

Main_Burn er_On_H_AC

20821

P.V.

1

THS

2

MV

3

SNS

4

COM.

5

1

SPARK GAP .125"

Igniti on Control

C C

R10645

Line Cor d

J3

1

1 2

F.S.

3

1

CB1

20 Am p

1 2

39688

B B

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Mtr_Spd_Sel _Bit_0_Ena_L

A A

Mtr_Spd_Sel _Bit_1_Ena_L

Mtr@SetSpd_L

L100_In put_Com_L

5

1 2

SW6

Gas Cut_OFF

AC-1

AC-2

39669

1
2
3

1
2
3

1
2
3
4
5
6
7

1
2
3
4
5
6
7
8

Gnd

AC_1
NEU
GND

P24
1
2
3
4
5
L

11
12
CM2
FM
L
OI
O
H

L
N

38303

240V

2

120V

3 6

COM

38303

240V

2

120V

3 6

COM

24Vdc Power Supply
150 W

M9608

T1

1

T2

1

T3

1

Pre_Se t Speeds:

binary select:

Inverter Drive

39338

T1

41

Hotair _24Vac

Hota ir_24Vac_Rtn

T2

41

Boiler_2 4Vac

Boiler_2 4Vac_Rtn

+24Vdc

+

1
2

-

24Vd c_Rtn

Cir_ Mtr _1

1
2
3

39332

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

4

SW4

Boiler_Hi _Lmt

Boiler_Pi lot_Ena_H

R2630

Boil er_OverTemp_H_AC

Boiler_En a_H

Boiler_Mai n_On_H_AC

Boiler_2 4Vac_Rtn

-

__ _-__ _

-

-

B

A

RE V E CN RE VIS ION S D AT E

GA GE

3

MA TL

-

-

__ _-__ _

­WA TER S EN SOR BOA RD

B1 0-00 5

­IN IT IAL R EL EAS E, WA TER SEN SORS

B0 9-08 3

-

-

-

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED

.XX X . XX A NGULAR HOLE

2

±.015 ±.03 ± 1° ±.005

__- __-__

__- __-__

04- 29-10

06- 18-10

1 2

Pilot Gas Solenoid

30005

1 2

Main Gas Solenoid

20821

P.V.

1

THS

2

MV

3

SNS

4

COM.

5

1

Igniti on Control

1

F.S.

1

1 2

Pilot Gas Solenoid

30005

1 2

Main Gas Solenoid

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

MH

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEM ATIC, BCX14G, MANUAL

DW G
BY

AP R
BY

DATE

DATE

MH

SHEET

06-18-10
06-18-10 NONE

SCALE

OF

1

DRAWING NUMBER REV

32MH

52853 B

SPARK GAP .125"

5

- +

D1
WO6 GGI

600V 1 .5A

D D

FBC2

2

DSS306

R11

2.2k 5% 1w

6.8 uF 25v

R12

2.2k 5% 1w

R13

2.2k 5% 1w

6.8 uF 25v

R14

2.2k 5% 1w

R15

2.2k 5% 1w

6.8 uF 25v

R16

2.2k 5% 1w

R17

2.2k 5% 1w

6.8 uF 25v

R18

2.2k 5% 1w

R19

2.2k 5% 1w

6.8 uF 25v

R20

2.2k 5% 1w

R22

2.2k 5% 1w

6.8 uF 25v

R24

2.2k 5% 1w

R25

2.2k 5% 1w

6.8 uF 25v

R26

2.2k 5% 1w

R27

2.2k 5% 1w

6.8 uF 25v

R28

2.2k 5% 1w

R29

2.2k 5% 1w

6.8 uF 25v

R30

2.2k 5% 1w

VCC

3

VCC

1
2

12

3

+

C9

C12

C15

C17

C19

C22

C24

C26

C28

4

VCC

1
2

12

3

+

4

VCC

1
2

12

3

+

4

VCC

1
2

12

3

+

4

VCC

1
2

12

3

+

4

VCC

1
2

12

3

+

4

VCC

1
2

12

3

+

4

VCC

1
2

12

3

+

4

VCC

1
2

12

3

+

4

1

J1

24VD C_Rtn

1

Flus h_Disable_L

2

Boiler_Fill_Ena_L

3

24VDC

4

Boiler_D elime_Ena_L

5
6

WAGO/ 6P/7.5MM

J3

Combi_Mode_ L

1

Steam_Mode_ L

2

DMD_ POT_VCC

3

DMD_POT

4

SPARE _SSR

5

Hot_Air _Mode_L

6

STM_DMD

7

(Flush /Drain_L)

8
9

Boiler_D rain

10
11

24VAC SIGNALS 24VAC SIGNALS

12

WAGO/ 12P/7.5MM

C C

J4

Heat _Demand_L

1

Hot_Air _Ena_L

2

Stea m_Deman d_Lamp

3

Deli me_Lamp

4

Stea m_Hi_L mt

5

Boiler_H eat_Ena_L

6
7

Boiler_Lo_L VL_H

8

WAGO/ 8P/7.5MM

24VAC SIGNALS

B B

D19 1 N4001

1N4001

12

12

D18

R5
100k

R6
10k

1 2

U10

+AC
+DC

-DC

-AC

HCPL- 3700

U11

+AC
+DC

-DC

-AC

HCPL- 3700

U12

+AC
+DC

-DC

-AC

HCPL- 3700

U13

+AC
+DC

-DC

-AC

HCPL- 3700

U14

+AC
+DC

-DC

-AC

HCPL- 3700

U15

+AC
+DC

-DC

-AC

HCPL- 3700

U16

+AC
+DC

-DC

-AC

HCPL- 3700

U17

+AC
+DC

-DC

-AC

HCPL- 3700

U18

+AC
+DC

-DC

-AC

HCPL- 3700

RN4A

4.7 k SIP

Vo

Vcc

GND

nc

RN4B

4.7 k SIP

Vo

Vcc

GND

nc

RN4 C

4.7 k SIP

Vo

Vcc

GND

nc

RN4 D

4.7 k SIP

Vo

Vcc

GND

nc

RN4E

4.7 k SIP

Vo

Vcc

GND

nc

RN4 F

4.7 k SIP

Vo

Vcc

GND

nc

RN4 G

4.7 k SIP

Vo

Vcc

GND

nc

RN4 H

4.7 k SIP

Vo

Vcc

GND

nc

RN4 I

4.7 k SIP

Vo

Vcc

GND

nc

12

+

C1

680 0uf 3 5v

1

6
8
5
7

3

6
8
5
7

4

6
8
5
7

5

6
8
5
7

6

6
8
5
7

7

6
8
5
7

8

6
8
5
7

9

6
8
5
7

10

6
8
5
7

2

FBC 1
DSS306

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

3

C4

.1uF , 50V

1 2

C10
.1uF

3 4

C13
.1uF

5 6

C16
.1uF

9 8

C18
.1uF

11 10

C20
.1uF

U7F

13 12

C23
.1uF

1 2

C25
.1uF

3 4

C27
.1uF

5 6

C29
.1uF

4

12

+

U7A

74HC14

U7B

74HC1 4

U7C

74HC14

U7D

74HC1 4

U7E

74HC1 4

74HC1 4

U8A

74HC1 4

U8B

74HC14

U8C

74HC14

C2
470uf 35V

U9

1

Vin

5

ON_OFF

3

GND

LM2575_TO220_5P

LED1

AMBER

LED2

AMBER

LED3

AMBER

LED4

AMBER

LED5

AMBER

LED6

AMBER

LED7

AMBER

LED8

AMBER

LED9

AMBER

3

(5.25v)

12

+

12

TP3

C3

470uf 25V

1
2
3
4
5
6
7
8

3

4
3

8
21
22
23
24
30
31
32
33

36

9

TP1

TP2

U20

Vcc2
Vbat
X1
X2
INTO
INT1
1Hz
GND

SERMOD

DS1306

U21

1

CS

2

SO

3

WP

4

GND

AT25256

VPP

VCC

35

12

2

VCC

VCC

mclr/vpp/thv

RA1/AN1
RAO/ANO
RA5/AN4/SS!
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7

RB0/INT

RE0/RD!/AN5

Vcc1

32KHz

Vccif
SDO

SDI

SCLK

CE

VCC

HOLD

SCK

SI

13

GND

1 2

34

GND

OSC2/CLKOUT

15

16
15
14
13
12
11
10
9

8
7
6
5

nc

nc1

1

17

RN3A

47k S IP

RN3B

47k S IP

VCC

VCC

In=GAS

U1

nc3

28

40

11

nc2

3

47k SIP

47k SIP

JP1

14

RE2/CS!/AN7

RCO/T1OSO/TICK1

RA3/AN3/Vref+

RE1/WR!/AN6

6

10

RN2 D

5

RN2E

6

4

13

VCC

1 2

VCC

Y1

5

VCC8Out

1

GND4nc

4MHz

RB7/PGD
RB6/PGC

RB3/PGM
RC6/TX/CK
RC7/RX/DT

OSC1/CLKIN

RB2
RB1

RC3/SCK/SCL

RC4/SDI/SDA

RC5/SDO

RA2/AN2/Vref-

RA4/TOCKi

RC1/T1OSI

RC2/CCP1

RB441RB5

42

U19B

74HC0 2

74HC02

RN1A

47k SIP

RN1B

47k SIP

RN1 C

47k SIP

RN1 D

47k SIP

RN1E

47k SIP

RN2 C

47k SIP

U19D

VCC

44
43
39
27
29
38
37
20
25
26
5
7

16
18
19

U19A

5

1

6

74HC0 2

U19 C

8

9

11

74HC0 2

12

3

4

5

6

4

14

SER

11

SRCLK

10

SRCLR

12

RCLK

13

G

16

VCC

8

GND

74HC5 95

14

11
10

12
13

16

8

VCC

2

OUT

4

FDBACK

R3

1k

RN5A

12

390 SIP

RN5B

3

390 SIP

RN5 C

4

390 SIP

RN5 D

5

390 SIP

RN5E

6

390 SIP

RN5 F

7

390 SIP

RN5 G

8

390 SIP

RN5 H

9

390 SIP

RN 5I

10

390 SIP

220uH

D2
1N5821

1 2

R4

3.32k

12

BT1

3V_Li

VCC

13

2

R1

10k 1T 10k 1T

1

2

L1

32.768KH z

13

R21

1k

FBC6
DSS306

Y2

VCC

R31

10k 1 % 1/4w

RN2A

1 2

47k S IP

RN2B

47k S IP

2

R2

TP4

3

2

3

U4

SER

SRCLK
SRCLR

RCLK
G

VCC
GND

74HC595

U3

12

+

6.8 uF 25v

R23
100k

2

MH1

MH2

MH3

MH4

MH5

MH6

VCC

C6

1

3

4

5

10

9
12
11

C1+

C1-

C2+

C2-

TR2IN
REC2OUT
REC1OUT
TR1IN

LT1281ACS

U2

TR1IOUT

REC2IN

REC1IN

TR2OUT

10

.1uF

C8
.1uF

C7

VCC

C5

.1uF

.1uF

2

V+

6

V-

14

8

13

7

SPI_S CK
SPI_ SDI
SPI_S DO
SPI_C SK
SPI_C SK1

12

390 SI P

390 SI P

390 SI P

RN6 H

RN6 G

8

9

LED16

LED17

GREEN
LEDS

U5

1

In1

2

In2

3

1
2
3
4
5
6
7

9

10

4
5
6
7

9

10

U6

In1
In2
In3
In4
In5
In6
In7
In88O8
VCC
GND

UDN25 95A

In3
In4
In5
In6
In7
In88O8
VCC
GND

UDN25 95A

18

O1

17

O2

16

O3

15

O4

14

O5

13

O6

12

O7

11

15

QA

1

QB

2

QC

3

QD

4

QE

5

QF

6

QG

7

QH

9

QH

VCC

C21

D17
IN4148

15

QA

1

QB

2

QC

3

QD

4

QE

5

QF

6

QG

7

QH

9

QH

390 SI P

RN6E

6

LED14

12

+

RN6 D

LED13

1

C30

6.8 uF 25v

390 SI P

RN6 C

4

5

LED12

2

RN6 F

7

LED15

18

O1

17

O2

16

O3

15

O4

14

O5

13

O6

12

O7

11

390 SI P

RN6B

LED11

FBC4
DSS306

1

1

390 SI P

RN6A

3

LED10

3

2

2

390 SI P

Boiler_Heat_Ena_L

Demand_Lamp

Steam_Demand_Lamp

Hot_Air_Ena_L

Boiler_Drain

Fill_Solenoid

F/D Switch

Spare Ouput

3

FBC5
DSS306

3

FBC7
DSS306

FB1

FB2

FB3

FB4

FB5

FB12
FB13
FB14
FB15
FB16
FB17
FB18
FB19

FB20

VCC

12

+

1

C14

6.8 uF 25v

1

FB6
FB7
FB8
FB9
FB10
FB11

J6

1
2
3
4
5
6
7
8
9
10
11
12
13
14

VPP

RB7
RB6
RB3

3

FBC3

2

DSS306

(SPARE)

Expansion

(KEYBOARD)

VCC

J5

1
2
3

RJ-11

4
5
6

CON6

P1

11

5
9
4
8
3

DB-9 /F

7

DCE

2
6
1

10

J2

1
2
3
4

SPI I/O

5
6

(MAX 4 DEVICES)

7
8
9
10

A A

U1 U1 U2 U3 U5

VCC VCCVCC VCCVCCVCCVCC

12

+

C11

6.8 uF 25v

VCC V CC VCCVCC V CC VC C

12

+

C31

6.8 uF 25v

5

.1uF

C33

C32

.1uF

C34
.1uF

.1uF

C35

C36

.1uF

C37
.1uF

.1uF

U19U7U6U4U1

U8 U21U20

VCC

C39
.1uF

C40
.1uF

4

C38

C41
.1uF

.1uF

C42

C43

.1uF

RN3 C

47k S IP

4

9 8

U8D

74HC14

RN3 D

47k SIP

5

11 10

3

U8E

74HC1 4

RN3E

47k S IP

U8F

6

13 12

74HC14

-

-

B

A

RE V E CN RE VISION S DAT E

GAGE

MAT L

___- ___

B10 -005

B09 -083

-

-

-

-

­WA TER SENS OR B OARD

­INIT IAL RE LEAS E

-

2

TO LER ANC ES UNL ESS O THER WISE SPEC IFIED

.XXX .XX A NGUL AR HOLE
±.015 ±. 03 ± 1° ±.005

-

___- ___

__-__ -__

__-__ -__

04-29 -10

06-18 -09

G.S. BLODGETT CORPORATION

___

50 LAK ESIDE AVE. BUR LINGTO N, V ERMON T 054 01

___

THIS DRAW ING IS TH E PROPER TY OF G.S. BLODGET T CORPOR ATION. N EITHER T HIS DRAW ING
NOR AN Y INFORMAT ION CONT AINED HER EIN MAY BE C OPIED OR USED, IN WHOLE OR IN PART,
WIT HOU T TH E EXPRES S WRITT EN PERMISS ION OF TH E G.S. BL ODGETT C ORPORAT ION.

MH

© G . S. B LODGE TT C ORPO RATIO N. UN PUBL ISHED WOR K. A LL RIG HTS RESER VED

Title

MH

APR BY

SCHE MATIC, BC X14G, MANUAL

DWG

DATE

B Y
APR

DATE

MH

B Y

SHEET
SCALE

1

OF

04-29-10
04-29-10 N ONE

DRAWING NUMBER REV

33MH

52853 B

5

4

3

2

1

39324

1 2

BK-15

Y-6

OR-5

Safety _Sw_Closed_H

Y-7
BL-6
V-3

Dig_Gnd
Door_C losed_H
Cavity _Hi_Lmt
Drv_@S etspd_L

SSR_He atSink_H
Door_L atched_H

Oven_O ff_H

Drv_Fa ult_L

+24Vdc _Out

Dig_Gnd
Boiler _Hi_Lmt

Lo_Lvl _Float
Hi_Lvl _Float

+24Vdc _Out

+24Vdc _Out

Dig_Gnd

Oven Prb

Oven Prb
Ctrl_Z one_Prb
Ctrl_Z one_Prb

Quench _Prb

Quench _Prb
Produc t_Prb
Produc t_Prb

Boiler _Prb

Boiler _Prb

J11.1
J11.2
J11.3
J11.4
J11.5
J11.6
J11.7
J11.8
J11.9
J11.10

J1.1
J1.2
J1.3
J1.4
J1.5
J1.6
J1.7
J1.8
J1.9
J1.10

J15.1
J15.2
J15.3
J15.4
J15.5
J15.6
J15.7
J15.8

J41.1
J41.2
J41.3
J41.4
J41.5
J41.6
J41.7
J41.8

J8.1
J8.2
J8.3
J8.4
J8.5
J8.6
J8.7
J8.8

J17.1
J17.2
J17.3
J17.4
J17.5
J17.6
J17.7
J17.8

Digita l Inputs Analog Inputs

+24VDC

J2.1

Buzzer

J2.2

+24VDC

J2.3

Vent

J2.4

+24VDC

J2.5

Quench

J2.6

+24VDC

J2.7

Chemic al_Pump

J2.8

Spd_Se l_Bit_0

J2.9

Spd_Se l_Bit_1

J2.10

Fwd_Ena_L

J2.11

Rev_Ena_L

J2.12

J3.1

+24VDC

J3.2
J3.3

Lights

J3.4

24VAC

J3.5

Cir_Pump

J3.6

+24VDC

J3.7

Delime _Pump

J3.8
J3.9

+24VDC

J3.10

Coolin g_Fan

J3.11
J3.12

J6.1
J6.2

HotAir _24V

J6.3

Relay Outputs

Oven_On

J6.4

Oven_On

J6.5

Boiler _24V

J6.6

Drv_Ok

J6.7

Drv_Ok

J6.8

K2B_NO

J6.9

K2B_Com

J6.10
J6.11
J6.12

K8-NO

J18.1

K8-C

J18.2

Spritz er_Sol

J18.3

+24VDC

J18.4

+24VDC _Rtn

J18.5

Cavity _Drain-

J18.6

Cavity _Drain+

J18.7

+24VDC

J18.8

Boiler _Drain -

J18.9

+24VDC _Rtn

J18.10

VFD - Relay Interface Module

J18.11
J18.12

J20.1
J20.2
J20.3
J20.4
J20.5
J20.6
J20.7
J20.8

J20.9
J20.10
J20.11
J20.12

+24VDC
Boiler _Drain +

HotAir _Heat_Ena
SSR_A1
SSR_A2
+24VDC _Rtn

Fill_Sol
+24VDC
Boiler _Heat_On
Boiler _Heat_Ena

RD-27

RD-16

GY-16
RD-24
OR-18

GY-17
GY-14
GY-19
GY-18

RD-15

RD-5

RD-17

RD-9

GY-9

RD-22 RD-22
OR-22

Y-9
RD-23
OR-23
BL-11

BK-11
RD-11

BL-11
BL-1

BL-10
RD-5

OR-23

BK

OR

BL-1

V-16

Y-3

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L
Mtr_Fwd_Ena_L
Mtr_ Rev_Ena_L

Hotai r_24VAC
Hotair_ Pilot_Ena_H
Boiler_Pi lot_Ena_H

Boiler_2 4VAC

Hotai r_Ena_H

OR/BK 2

Hotair_ Main_On_H_AC

Boiler_Mai n_On_H_AC

Boiler_Mai n_Ena_H

OR-18

V-13

BL-10

+24V DC_RTN

Hota ir_Ov ertemp_H_AC

Drv@ SetSpd_L

D D

J20

U2

1

2

RD

+

V

J35

PZ1

-

FRON T PANEL BUZZER

Y

1

RD

2

BK

3

Ctr l 24Vac [0..2]

Drv_ Fault_L

Boil er_Overtem p_H_AC

OR-5

BK-15

GY-15

GY-20

SCK_COMM

J38

J37

Mode S witch Header 24VA C_PWR

1
2
3

8
7
6
5
4
3
2
1

WH(RD/ WH-1)

RD(RD/ WH-1)

BL-8
BL-7

BL-6

BL-5
BL-4
BL-3

(RD/WH -1),( RD/WH -2), 22awg twisted pair

OFF

Mode_Sw

2

CO MB I

1

STE AM

HO T A IR

CO O L DO WN

12

O FF

SW1

6

10

8

4

CO MB I

STE AM

HO T A IR

CO O L DO WN

BL-9

3
5

7
9
11

J4

MANUAL CONT ROL - 53697

Aux I/O L ower K eypad Header

T1T2T3

+24Vdc

Out_1
Out_2
Out_3
Out_4
Out_5
Out_6
Out_7
Out_8

Out_8
Out_9

Out_10

J12

Com

12
11
10

9
8
7
6
5
4
3
2
1

C C

12
11
10
9
8
7
6
5
4
3
2
1

Lower Keypa d (Li ght/Fan/Vent)

U6

Vent_Sol

1 2

Quench Sol enoid

MG1

1 2

Deli me Pump

M961 6

Mtr_2

+ -GY-9

1 2

Cooling_Blwr

1 2

Fill Solenoid

MG2

1 2

+

A

Drain Actuator

-

BK-21GY_16

39793

BK-9/BK10

3979 3

BK-6

Lever Nut

RT5

J16.1
J16.2
J16.3
J16.4
J16.5
J16.6
J16.7
J16.8

J19.1

J19.2

J19.3

J19.4

t

Boiler

24VAC_Pwr

+24VDC

J13.1

Buzzer

J13.2

DGND

J13.3

RD(RD/ Y/BK-1)

RS232 Out

PWM RS 232 Buzzer

J14.1

J14.2

J14.3

J5.1

J5.2

J5.3

RS232 In

DGND

PWM OUT

PWM OUT

DGND

Y(RD/Y /BK-1)

BK(RD/ Y/BK-1)

+24V DC

+24V DC_RTN

3

OR

Y

V

B B

R1
POT

18234

Door _Sw Proximi ty

RD(RD/ BK-3)

BK(RD/ BK-3)

+24VDC

A A

RD-8

SW3

Bl Bk

Br

WATER
LEVEL
SENSOR

SW2

39337

Br

Bl

53247

HI_BRN
HI_BLK HI_K2_+
HI_BLU

SENS OR
INP UT

+24V DC_RETURN_BK10/B K6

5

Bk

HI GH
REL AY

HI_K2_COM

LO_K1_COM

LOW
REL AY

RETURN

Y-6

LO_K1_+

220/24

RT1

V-3

BL-6

Ca vit y

t

Inve rter_H. S.

W BL Y

RT2

t

BK

Prob es: 1k RT D

36720

4

Y/BK -1, 22a wg twiste d pair

V/BK -1, 22a wg twiste d pair

WH/B K-2 , 22 awg twi sted pair

BL/B K-1 , 22 awg twi sted pair

WH/B K-1 , 22 awg twi sted pair

Quench

RT3

t

Product

RT4

t

V W

BKBKBK BK

Lever Nut

RT1

THERMISTOR

39998

t

DC_Bu s[1.. 2]

R/BK -1, 22a wg twiste d pair

+24Vdc

+24Vdc _Rtn

R

Bk

-

__ _-__ _

-

-

-

A

RE V E CN RE VIS ION S D AT E

GA GE

MA TL

__ _-__ _

__ _-__ _

B0 9-15 3

-

-

-

-

-

-

­IN IT IAL R ELE ASE

-

2

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED
.XX X . XX A NGULAR HOLE

±.015 ±.03 ± 1° ±.005

BK-5
BK-21

TB2

39378

1_A
1_B

2_A
2_B

3_A
3_B

4_A
4_B

5_A
5_B

Term_Blk_5p

24VD C_RTN

__- __-__

__- __-__

__- __-__

09- 08-10

1
2

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

1
2

Halogen La mp-12V

D0119 (X 4)

1
2

1
2

BK-5

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

___

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEM ATIC, BCX14G, 120V MANUAL

DW G
BY

AP R

BY

DATE

09-09-10

DATE

MH

09-09-10 NONE

SHEET
SCALE

DRAWING NUMBER REV

OF

21MH

1

53849 A

BK-5/B K-21

5

D D

4

3

Hotair_ Pilot_Ena_H

Hota ir_Ov ertemp_H_AC

OR-22

OR-5

2

36441

SW4
Cav ity_ Hi_Lmt

11

1

12

14

OR-2

OR-20

WH-

OR-6

U7 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

WH-2

WH-3 WH -7

Line Cord

F.S.

1

1 2

3

Grn

J3

R10645

BK BL

OR-6

1 2

Pilot Gas Solenoid

R6490

TB1

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

Bl-1, 14awg, 600V

Hotai r_Ena_H

Hotair_ Main_On_H_AC

OR-7

OR-20

OR-23

BL-1

WH-3

L1_A

L1_B

L1_C

L1_D

C C

Br-1, 14awg, 600V

G/Y-1, 14awg, 600V

CB1

20 Am p

1 2

39688

Br-5, 14awg, 600V

L1_A

L1_B

L1_C

L1_D

B B

Gnd_A

Gnd_B

Gnd_C

Gnd_D

1 2

Br-4, 18awg, 600V

Bl-4, 18awg, 600V

Bl-6, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

SW6

Heat Cut_O FF

Bk-2, 18awg, 600V

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

39669

Bk-1, 18awg, 600V

Bl-5, 18awg, 600V

1
2
3

Gnd

N

24356

T1

240V

120V

COM

41

2

3 6

38303

T2

240V

120V

COM

41

2

3 6

24Vdc Power Supply

24Vac

B: 24Vac

B: 24Vac_Rtn

+

-L
+M9608

-

+24Vdc
+24Vdc _Rtn
+24Vdc
+24Vdc _Rtn

CON 4

Hotai r_24VAC

Boiler_2 4VAC

WH-2

WH-1

Ctr l 24Vac [0..2]

R/BK-2 , 22a wg twisted pair

A_24 Vdc [0..2]

+24Vdc

+24Vdc _Rtn

Boiler_Pi lot_Ena_H

Boil er_Overtem p_H_AC

Boiler_En a_H

Boiler_Mai n_On_H_AC

Y-6

Y-7

Y-3

V-16

R2630

SW4
Boiler_Hi _Lmt

11

OR-7

BL-1

Y-8

12

14

Y-2

Y-3

WH-

WH-

U8 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Com1

1 2

Pilot Gas Solenoid

30005

1 2

Main Gas Solenoid

U9 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Com1

Com2

Com2

Spark

G770-M GC-3

Com3

Spark

G770-M GC-3

Com3

20821

SPARK GAP .125"

Com4

WH-5

F.S.

1

20821

SPARK G AP .125"

Com4

WH-6

Br-2, 14awg, 600V

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

A A

Drv@ SetSpd_L
Drv_ Fault_L

Drv_ Input_ Com

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Bl-2, 14awg, 600V

GY-19
GY-18
GY-17
GY-14

GY-15
GY-20
BK-12

AC_1

1

NEU

2

GND

3

P24

1

1

2

2

3

3

4

4

5

5

6

G

BK

L

7

BK-13

1

11

2

12

3

CM2

4

FM

5

L

6

OI

39338

7

O

8

H

L100

T1

T2

T3

Inverter Drive

R1, 14 awg, 600V

1

W1, 14 awg, 600V

1

Bk3, 1 4awg, 600V

1

Pre_Se t Speeds:

binary select:

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

GY/BK- 1 Twi sted Pair

5

4

Cir_Mtr , 3p, 4 pol e

BR

MTR1

L2

BL

BK

F.S.

39332

1

L1

Gnd

N. C.

1 2

L3

GY GY

G

BK

-

__ _-__ _

-

-

-

A

RE V E CN RE VIS ION S D AT E

GA GE

3

MA TL

__ _-__ _

__ _-__ _

B0 9-15 3

-

-

-

-

-

-

­IN IT IAL R ELE ASE

-

2

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED
.XX X . XX A NGULAR HOLE

±.015 ±.03 ± 1° ±.005

__- __-__

__- __-__

__- __-__

09- 08-10

Y-8

1 2

Pilot Gas Solenoid

RD-16

1 2

Main Gas Solenoid

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

___

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEM ATIC, BCX14G, 120V MANUAL

DW G
BY

AP R

BY

DATE

09-09-10

DATE

MH

09-09-10 NONE

SHEET
SCALE

DRAWING NUMBER REV

OF

22MH

1

53849 A

5

4

3

2

1

39324

1 2

U6

WH/B K-2 , 22 awg twi sted pair

Quench

BK-15

OR-5

GY-15

GY-20

Y-6

Y-7
BL-6
V-3

Dig_Gnd
Door_C losed_H
Cavity _Hi_Lmt
Drv_@S etspd_L

Safety _Sw_Closed_H

SSR_He atSink_H
Door_L atched_H

Oven_O ff_H

Drv_Fa ult_L

+24Vdc _Out

Dig_Gnd
Boiler _Hi_Lmt

Lo_Lvl _Float
Hi_Lvl _Float

+24Vdc _Out

+24Vdc _Out

Dig_Gnd

Oven Prb

Oven Prb
Ctrl_Z one_Prb
Ctrl_Z one_Prb

Quench _Prb

Quench _Prb
Produc t_Prb
Produc t_Prb

Boiler _Prb

Boiler _Prb

J11.1
J11.2
J11.3
J11.4
J11.5
J11.6
J11.7
J11.8
J11.9
J11.10

J1.1
J1.2
J1.3
J1.4
J1.5
J1.6
J1.7
J1.8
J1.9
J1.10

J15.1
J15.2
J15.3
J15.4
J15.5
J15.6
J15.7
J15.8

J41.1
J41.2
J41.3
J41.4
J41.5
J41.6
J41.7
J41.8

J8.1
J8.2
J8.3
J8.4
J8.5
J8.6
J8.7
J8.8

J17.1
J17.2
J17.3
J17.4
J17.5
J17.6
J17.7
J17.8

J16.1
J16.2
J16.3
J16.4
J16.5
J16.6
J16.7
J16.8

J19.1

J19.2

J19.3

J19.4

Digita l Inputs Analog Inputs

24VAC_Pwr

+24VDC

J2.1

Buzzer

J2.2

+24VDC

J2.3

Vent

J2.4

+24VDC

J2.5

Quench

J2.6

+24VDC

J2.7

Chemic al_Pump

J2.8

Spd_Se l_Bit_0

J2.9

Spd_Se l_Bit_1

J2.10

Fwd_Ena_L

J2.11

Rev_Ena_L

J2.12

J3.1

+24VDC

J3.2
J3.3

Lights

J3.4

24VAC

J3.5

Cir_Pump

J3.6

+24VDC

J3.7

Delime _Pump

J3.8
J3.9

+24VDC

J3.10

Coolin g_Fan

J3.11
J3.12

J6.1
J6.2

HotAir _24V

J6.3

Relay Outputs

Oven_On

J6.4

Oven_On

J6.5

Boiler _24V

J6.6

Drv_Ok

J6.7

Drv_Ok

J6.8

K2B_NO

J6.9

K2B_Com

J6.10
J6.11
J6.12

K8-NO

J18.1

K8-C

J18.2

Spritz er_Sol

J18.3

+24VDC

J18.4

+24VDC _Rtn

J18.5

Cavity _Drain-

J18.6

Cavity _Drain+

J18.7

+24VDC

J18.8

Boiler _Drain -

J18.9

+24VDC _Rtn

J18.10

VFD - Relay Interface Module

J18.11
J18.12

J20.1
J20.2
J20.3
J20.4
J20.5
J20.6
J20.7
J20.8

J20.9
J20.10
J20.11
J20.12

J13.1

J13.2

J13.3

J14.1

J14.2

J14.3

J5.1

J5.2

PWM RS 232 Buzzer

J5.3

+24VDC
Boiler _Drain +

HotAir _Heat_Ena
SSR_A1
SSR_A2
+24VDC _Rtn

Fill_Sol
+24VDC
Boiler _Heat_On
Boiler _Heat_Ena

+24VDC

Buzzer

DGND

RS232 Out

RS232 In

DGND

PWM OUT

PWM OUT

DGND

RD-27

RD-16

GY-16
RD-24
OR-18

GY-17
GY-14
GY-19
GY-18

RD-15

RD-5

RD-17

RD-9

GY-9

RD-22 RD-22
OR-22

Y-9
RD-23
OR-23
BL-11

BK-11
RD-11

BL-11
BL-1

BL-10
RD-5

RD(RD/ Y/BK-1)

Y(RD/Y /BK-1)

BK(RD/ Y/BK-1)

Lever Nut

OR-23

BK

OR

BL-1

V-16

Y-3

Hotai r_24VAC
Hotair_ Pilot_Ena_H
Boiler_Pi lot_Ena_H

Boiler_2 4VAC

Hotai r_Ena_H

Hotair_ Main_On_H_AC

Boiler_Mai n_On_H_AC

Boiler_Mai n_Ena_H

RT1

THERMISTOR

39998

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L
Mtr_Fwd_Ena_L
Mtr_ Rev_Ena_L

OR/BK 2

t

BK-5
BK-21

1_A
1_B

2_A
2_B

3_A
3_B

4_A
4_B

5_A
5_B

TB2

39378

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

OR-18

V-13

BL-10

Term_Blk_5p

V/BK -1, 22a wg twiste d pair

Product

RT4

t

V W

Boiler

RT5

t

BKBKBK BK

3

+24V DC

+24V DC_RTN

DC_Bu s[1.. 2]

R/BK -1, 22a wg twiste d pair

+24Vdc

+24Vdc _Rtn

R

Bk

-

__ _-__ _

-

-

-

A

RE V E CN RE VIS ION S D AT E

GA GE

MA TL

__ _-__ _

__ _-__ _

B0 9-15 3

-

-

-

-

-

-

­IN IT IAL R ELE ASE

-

2

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED
.XX X . XX A NGULAR HOLE

±.015 ±.03 ± 1° ±.005

24VD C_RTN

__- __-__

__- __-__

__- __-__

09- 15-10

BK-5

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

___

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEMAT IC, BCX14G, 20 8-240V MANUAL

DW G
BY

AP R

BY

DATE
DATE

MH

+24V DC_RTN

Hota ir_Ov ertemp_H_AC

Drv@ SetSpd_L

BK-15

OR-5

Ctr l 24Vac [0..2]

RD

D D

U2

1

2

J20

+

V

J35

PZ1

-

FRON T PANEL BUZZER

Y

1

RD

2

BK

3

Drv_ Fault_L

Boil er_Overtem p_H_AC

SCK_COMM

J38

Mode S witch Header 24VA C_PWR

J37

1
2
3

8
7
6
5
4
3
2
1

WH(RD/ WH-1)

RD(RD/ WH-1)

BL-8
BL-7

BL-6
BL-5
BL-4
BL-3

(RD/WH -1),( RD/WH -2), 22awg twisted pair

OFF

Mode_Sw

2

CO MB I

1

STE AM

HO T A IR

CO O L DO WN

12

O FF

SW1

6
8

10

4

CO MB I

STE AM

HO T A IR

CO O L DO WN

BL-9

3
5

7
9

11

J4

R1
POT

18234

12
11
10
9
8
7
6
5
4
3
2
1

Lower Keypa d (Li ght/Fan/Vent)

+24Vdc

Out_1

MANUAL CONT ROL - 53697

Aux I/O L ower K eypad Header

T1T2T3

V

Out_2
Out_3
Out_4
Out_5
Out_6
Out_7
Out_8

Out_8
Out_9

Out_10

Com

J12

12
11
10

9
8
7
6
5
4
3
2
1

OR

Y

C C

B B

Door _Sw Proximi ty

RD(RD/ BK-3)

BK(RD/ BK-3)

+24VDC

A A

RD-8

SW3

Bl Bk

Br

WATER
LEVEL
SENSOR

SW2

39337

Br

Bl

53247

HI_BRN
HI_BLK HI_K2_+
HI_BLU

SENS OR
INP UT

+24V DC_RETURN_BK10/B K6

Bk

HI GH
REL AY

HI_K2_COM

LO_K1_COM

LOW
REL AY

RETURN

Y-6

LO_K1_+

220/24

RT1

V-3

BL-6

Ca vit y

t

Inve rter_H. S.

W BL Y

RT2

t

Y/BK -1, 22a wg twiste d pair

BL/B K-1 , 22 awg twi sted pair

WH/B K-1 , 22 awg twi sted pair

RT3

t

BK

Prob es: 1k RT D

5

36720

4

Vent_Sol

1 2

Quench Sol enoid

MG1

1 2

Deli me Pump

M961 6

Mtr_2

+ -GY-9

1 2

Cooling_Blwr

1 2

Fill Solenoid

MG2

1 2

-

+

A

Drain Actuator

SHEET

09-15-10

SCALE

09-15-10 NONE

1

BK-21GY_16

39793

3979 3

1
2

1
2

1
2

1
2

DRAWING NUMBER REV

OF

21MH

BK-9/BK10

BK-6

Lever Nut

Halogen La mp-12V

D0119 (X 4)

BK-5/B K-21

53850 A

5

D D

4

3

Hotair_ Pilot_Ena_H

Hota ir_Ov ertemp_H_AC

OR-22

OR-5

2

36441

SW4
Cav ity_ Hi_Lmt

11

1

12

14

OR-2

OR-20

WH-

OR-6

U7 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

WH-2

WH-3 WH -7

Line Cord

F.S.

1

1 2

3

Grn

J3

R10645

BK BL

OR-6

1 2

Pilot Gas Solenoid

R6490

TB1

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

Bl-1, 14awg, 600V

Hotai r_Ena_H

Hotair_ Main_On_H_AC

OR-7

OR-20

OR-23

BL-1

WH-3

L1_A

L1_B

L1_C

L1_D

C C

Br-1, 14awg, 600V

G/Y-1, 14awg, 600V

CB1

20 Am p

1 2

39688

Br-5, 14awg, 600V

L1_A

L1_B

L1_C

L1_D

B B

Gnd_A

Gnd_B

Gnd_C

Gnd_D

1 2

Br-4, 18awg, 600V

Bl-4, 18awg, 600V

Bl-6, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

SW6

Heat Cut_O FF

Bk-2, 18awg, 600V

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

39669

Bk-1, 18awg, 600V

Bl-5, 18awg, 600V

1
2
3

Gnd

N

24356

T1

240V

120V

COM

41

2

3 6

38303

T2

240V

120V

COM

41

2

3 6

24Vdc Power Supply

24Vac

B: 24Vac

B: 24Vac_Rtn

+

-L
+M9608

-

+24Vdc
+24Vdc _Rtn
+24Vdc
+24Vdc _Rtn

CON 4

Hotai r_24VAC

Boiler_2 4VAC

WH-2

WH-1

Ctr l 24Vac [0..2]

R/BK-2 , 22a wg twisted pair

A_24 Vdc [0..2]

+24Vdc

+24Vdc _Rtn

Boiler_Pi lot_Ena_H

Boil er_Overtem p_H_AC

Boiler_En a_H

Boiler_Mai n_On_H_AC

Y-6

Y-7

Y-3

V-16

R2630

SW4
Boiler_Hi _Lmt

11

OR-7

BL-1

Y-8

12

14

Y-2

Y-3

WH-

WH-

U8 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Com1

1 2

Pilot Gas Solenoid

30005

1 2

Main Gas Solenoid

U9 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Com1

Com2

Com2

Spark

G770-M GC-3

Com3

Spark

G770-M GC-3

Com3

20821

SPARK GAP .125"

Com4

WH-5

F.S.

1

20821

SPARK G AP .125"

Com4

WH-6

Br-2, 14awg, 600V

Drv@ SetSpd_L
Drv_ Fault_L

Drv_ Input_ Com

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

A A

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Bl-2, 14awg, 600V

GY-15
GY-20
BK-12

GY-19
GY-18
GY-17
GY-14

L200

51503

T1
T2
T3

RD-1, 14awg, 600V

U

WH-1, 14awg, 600V

V

BK-3, 14awg, 600V

W

Pre_Se t Speeds:

binary select:

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

1

L1

2

L2

3

L3/N

1

11

2

12

3

CM2

4

PCS

5

In_1

6

In_2

7

In_3

8

GY

BK

BK-13

In_4

9

In_5

10

L

11

L

12

OI

13

O

14

H

15

AM

GY/BK- 1 Twi sted Pair

5

4

Cir_Mtr , 3p, 4 pol e

BR

MTR1

L2

BL

BK

F.S.

39332

1

L1

Gnd

N. C.

1 2

L3

GY GY

G

BK

-

__ _-__ _

-

-

-

A

RE V E CN RE VIS ION S D AT E

GA GE

3

MA TL

__ _-__ _

__ _-__ _

B0 9-15 3

-

-

-

-

-

-

­IN IT IAL R ELE ASE

-

2

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED
.XX X . XX A NGULAR HOLE

±.015 ±.03 ± 1° ±.005

__- __-__

__- __-__

__- __-__

09- 15-10

Y-8

1 2

Pilot Gas Solenoid

RD-16

1 2

Main Gas Solenoid

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

___

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEMAT IC, BCX14G, 20 8-240V MANUAL

DW G
BY

AP R

BY

DATE

09-15-10

DATE

MH

09-15-10 NONE

SHEET
SCALE

DRAWING NUMBER REV

OF

22MH

1

53850 A

5

Ctr l 24Vac [0..2]

+24V DC_RTN

Hota ir_Ov ertemp_H_AC

Drv@ SetSpd_L

U10

J2

1

1

D D

VFD CO NTROL LER - 39124

C C

Analog I/O Au x I/O Relay I/O Sign al I/O 24VAC_PWR SCK_COMM

J5 Com Port

VFD_C TRL_01

12345

B B

A A

BK(RD/ Y/BK-1)

+24V DC

2
3
4

J38

1
2
3

J37

In_1
In_2
In_3
In_4
In_5
In_6
In_7

Com

J4

+24Vdc

Out_1
Out_2
Out_3
Out_4
Out_5
Out_6
Out_7
Out_8

Com

J12

12
11
10

9
8
7
6
5
4
3
2
1

J41

8

AN-1

7
6

AN-2

5
4

AN-3

3
2

AN-4

1

Y(RD/Y /BK-1)

RD(RD/ Y/BK-1)

RD(RD/ BK-3)

BK(RD/ BK-3)

RD-8

2
3
4

1
2
3

8
7
6
5
4
3
2
1

10
9
8
7
6
5
4
3
2
1

Br

R/W-1, 22aw g twisted pair

R-1

W-1

Bl-12
R-11

V-8
V-7
V-6
V-5
V-4
V-3

Harnes s PN: 50178

Door _Sw Proximi ty

SW2

39337

Bl

R10472

SW3

Sw, Float , SPST, N.C.

SW2

Boil er_Overtem p_H_AC

Bk

V-3

Hi_Lvl

BL-6Lo_Lvl

Drv_ Fault_L

AUX_Br d_DGND

AUX_Brd_+5Vdc_Sw_Pwr

AUX_Brd_SW 3_Ena_L
AUX_Brd_SW 2_Ena_L

AUX_Brd_SW 1_Ena_L
AUX_Brd_D3_Ena_L
AUX_Brd_D2_Ena_L
AUX_Brd_D1_Ena_L

Y-6

OR-5

BK-15

RT1

Ca vit y

W BL

t

BK

5

36720

4

GY-15

GY-20

Inve rter_H. S.

RT2

t

Prob es: 1k RT D

4

3

Digita l Inputs Analog Inputs

24VAC_Pwr

Boiler

U6

+24VDC

J2.1

Buzzer

J2.2

+24VDC

J2.3

Vent

J2.4

+24VDC

J2.5

Quench

J2.6

+24VDC

J2.7

Chemic al_Pump

J2.8

Spd_Se l_Bit_0

J2.9

Spd_Se l_Bit_1

J2.10

Fwd_Ena_L

J2.11

Rev_Ena_L

J2.12

J3.1

+24VDC

J3.2
J3.3

Lights

J3.4

24VAC

J3.5

Cir_Pump

J3.6

+24VDC

J3.7

Delime _Pump

J3.8
J3.9

+24VDC

J3.10

Coolin g_Fan

J3.11
J3.12

J6.1
J6.2

HotAir _24V

J6.3

Relay Outputs

Oven_On

J6.4

Oven_On

J6.5

Boiler _24V

J6.6

Drv_Ok

J6.7

Drv_Ok

J6.8

K2B_NO

J6.9

K2B_Com

J6.10
J6.11
J6.12

K8-NO

J18.1

K8-C

J18.2

Spritz er_Sol

J18.3

+24VDC

J18.4

+24VDC _Rtn

J18.5

Cavity _Drain-

J18.6

Cavity _Drain+

J18.7

+24VDC

J18.8

Boiler _Drain -

J18.9

+24VDC _Rtn

J18.10

VFD - Relay Interface Module

3

J18.11
J18.12

J20.1
J20.2
J20.3
J20.4
J20.5
J20.6
J20.7
J20.8

J20.9
J20.10
J20.11
J20.12

J13.1

J13.2

J13.3

J14.1

J14.2

J14.3

J5.1

J5.2

PWM RS 232 Buzzer

J5.3

+24VDC
Boiler _Drain +

HotAir _Heat_Ena
SSR_A1
SSR_A2
+24VDC _Rtn

Fill_Sol
+24VDC
Boiler _Heat_On
Boiler _Heat_Ena

+24VDC

Buzzer

DGND

RS232 Out

RS232 In

DGND

PWM OUT

PWM OUT

DGND

RD-27

RD-16

GY-16
RD-24
OR-18

GY-17
GY-14
GY-19
GY-18

RD-15

RD-5

RD-17

RD-9

GY-9

RD-22 RD-22
OR-22

Y-9
RD-23
OR-23
BL-11

V-5

RD-10

BK-11
RD-11

BL-11
BL-1

BL-10
RD-5

RD(RD/ Y/BK-1)

Y(RD/Y /BK-1)

BK(RD/ Y/BK-1)

+24V DC

+24V DC_RTN

Lever Nut

+24Vdc

+24Vdc _Rtn

BK

OR

V-16

OR-23

BL-1

Y-3

THERMISTOR

R

Bk

R1 4 .7K

R2 4 .7K

BK-15

Y-6

OR-5

Y-7
BL-6
V-3

Dig_Gnd
Door_C losed_H
Cavity _Hi_Lmt
Drv_@S etspd_L

Safety _Sw_Closed_H

SSR_He atSink_H
Door_L atched_H

Oven_O ff_H

Drv_Fa ult_L

+24Vdc _Out

Dig_Gnd
Boiler _Hi_Lmt

Lo_Lvl _Float
Hi_Lvl _Float

+24Vdc _Out

+24Vdc _Out

Dig_Gnd

Oven Prb

Oven Prb
Ctrl_Z one_Prb
Ctrl_Z one_Prb

Quench _Prb

Quench _Prb
Produc t_Prb
Produc t_Prb

Boiler _Prb

Boiler _Prb

J11.1
J11.2
J11.3
J11.4
J11.5
J11.6
J11.7
J11.8
J11.9
J11.10

J1.1
J1.2
J1.3
J1.4
J1.5
J1.6
J1.7
J1.8
J1.9
J1.10

J15.1
J15.2
J15.3
J15.4
J15.5
J15.6
J15.7
J15.8

J41.1
J41.2
J41.3
J41.4
J41.5
J41.6
J41.7
J41.8

J8.1
J8.2
J8.3
J8.4
J8.5
J8.6
J8.7
J8.8

J17.1
J17.2
J17.3
J17.4
J17.5
J17.6
J17.7
J17.8

J16.1
J16.2
J16.3
J16.4
J16.5
J16.6
J16.7
J16.8

J19.1

J19.2

J19.3

J19.4

Y/BK -1, 22a wg twiste d pair

RT3

t

WH/B K-2 , 22 awg twi sted pair

Quench

V/BK -1, 22a wg twiste d pair

Product

Y

V W

RT4

t

BKBKBK BK

RT5

t

BL/B K-1 , 22 awg twi sted pair

WH/B K-1 , 22 awg twi sted pair

2

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L
Mtr_Fwd_Ena_L
Mtr_ Rev_Ena_L

Hotai r_24VAC
Hotair_ Pilot_Ena_H
Boiler_Pi lot_Ena_H

Boiler_2 4VAC

Hotai r_Ena_H

OR/BK 2

Hotair_ Main_On_H_AC

Boiler_Mai n_On_H_AC

Boiler_Mai n_Ena_H

RT1

39998

t

DC_Bu s[1.. 2]

R/BK -1, 22a wg twiste d pair

2

BK-5
BK-21

TB2

39378

1_A
1_B

2_A
2_B

3_A
3_B

4_A
4_B

5_A
5_B

Term_Blk_5p

24VD C_RTN

1

39324

39793

3979 3

5064 3

1
2

1
2

1
2

1
2

BK-21GY_16

BK-9/BK10

BK-6

BK-10

Lever Nut

Halogen La mp-12V

D0119 (X 4)

BK-5/B K-21

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

BK-5

OR-18

V-13

BL-10

V-5

1 2

Vent_Sol

1 2

Quench Sol enoid

MG1

1 2

Deli me Pump

M961 6

Mtr_2

+ -GY-9

1 2

Cooling_Blwr

1 2

Fill Solenoid

1 2

Spritzer_ Solenoid

MG2

1 2

+

A

Drain Actuator

-

Blodgett Oven Company

50 L akesid e Ave.
Burling ton, VT 05401

Title

BCX14G MENUSELECT SCHEMATIC

Size Do cument Number R ev

C

Dat e: Sheet

51228

Control Section

of

1

1 2Thur sday, Jun e 12, 2008

03

5

4

3

2

1

36441

Hotair_ Pilot_Ena_H

OR-22

SW4
Cav ity_ Hi_Lmt

11

12

14

OR-6

OR-2

OR-20

WH-

Hota ir_Ov ertemp_H_AC

D D

OR-5

WH-2

U7 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

WH-3 WH -7

Line Cord

F.S.

1

1 2

3

Grn

J3

R10645

BK BL

OR-6

1 2

Pilot Gas Solenoid

R6490

TB1

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

Hotai r_Ena_H

Hotair_ Main_On_H_AC

OR-7

OR-20

OR-23

BL-1

L1_A

L1_B

L1_C

L1_D

C C

WH-

U8 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

Br-1, 14awg, 600V

Bl-1, 14awg, 600V

WH-3

G/Y-1, 14awg, 600V

CB1

20 Am p

1 2

39688

Br-5, 14awg, 600V

L1_A

L1_B

L1_C

L1_D

B B

Gnd_A

Gnd_B

Gnd_C

Gnd_D

1 2

Br-4, 18awg, 600V

Bl-4, 18awg, 600V

Bl-6, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

SW6

Heat Cut_O FF

Bk-2, 18awg, 600V

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

39669

Bk-1, 18awg, 600V

Bl-5, 18awg, 600V

1
2
3

Gnd

N

24356

T1

240V

120V

COM

41

2

3 6

38303

T2

240V

120V

COM

41

2

3 6

24Vdc Power Supply

24Vac

B: 24Vac

B: 24Vac_Rtn

+

-L
+M9608

-

+24Vdc
+24Vdc _Rtn
+24Vdc
+24Vdc _Rtn

CON 4

Br-2, 14awg, 600V

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

A A

Drv@ SetSpd_L
Drv_ Fault_L

Drv_ Input_ Com

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Bl-2, 14awg, 600V

GY-19
GY-18
GY-17
GY-14

GY-15
GY-20
BK-12

AC_1

1

NEU

2

GND

3

P24

1

1

2

2

3

3

4

4

5

5

6

G

BK

L

7

BK-13

1

11

2

12

3

CM2

4

FM

5

L

6

OI

39338

7

O

8

H

L100

T1

T2

T3

Inverter Drive

R1, 14 awg, 600V

1

W1, 14 awg, 600V

1

Bk3, 1 4awg, 600V

1

Pre_Se t Speeds:

binary select:

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

Hotai r_24VAC

Boiler_2 4VAC

WH-2

WH-1

Ctr l 24Vac [0..2]

R/BK-2 , 22a wg twisted pair

A_24 Vdc [0..2]

Cir_Mtr , 3p, 4 pol e

BR

MTR1

L2

BL

BK

OR-7

1 2

Pilot Gas Solenoid

30005

BL-1

1 2

Main Gas Solenoid

+24Vdc

+24Vdc _Rtn

Boiler_Pi lot_Ena_H

Boil er_Overtem p_H_AC

Boiler_En a_H

Boiler_Mai n_On_H_AC

Y-6

Y-7

Y-3

V-16

R2630

SW4
Boiler_Hi _Lmt

11

12

14

Y-2

Y-3

Y-8

WH-

U9 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

39332

L1

Gnd

N. C.

1 2

L3

GY GY

G

BK

Y-8

RD-16

1 2

Pilot Gas Solenoid

1 2

Main Gas Solenoid

Blodgett Oven Company

50 L akesid e Ave.
Burling ton, VT 05401

WH-5

F.S.

1

Spark

20821

SPARK G AP .125"

G770-M GC-3

Com1

Com2

Com3

Com4

WH-6

F.S.

1

POWER SECTION

Title

GY/BK- 1 Twi sted Pair

5

4

3

2

BCX14G MENUSELECT SCHEMATIC

Size Do cument Number R ev

C

Dat e: Sheet

51228

1

of

2 2Mond ay, June 02 , 2008

03

5

4

3

2

1

39324

Ctr l 24Vac [0..2]

BK-15

Y-6

OR-5

Safety _Sw_Closed_H

Y-7
BL-6
V-3

Dig_Gnd
Door_C losed_H
Cavity _Hi_Lmt
Drv_@S etspd_L

SSR_He atSink_H
Door_L atched_H

Oven_O ff_H

Drv_Fa ult_L

+24Vdc _Out

Dig_Gnd
Boiler _Hi_Lmt

Lo_Lvl _Float
Hi_Lvl _Float

+24Vdc _Out

+24Vdc _Out

Dig_Gnd

Oven Prb

Oven Prb
Ctrl_Z one_Prb
Ctrl_Z one_Prb

Quench _Prb

Quench _Prb
Produc t_Prb
Produc t_Prb

Boiler _Prb

Boiler _Prb

J11.1
J11.2
J11.3
J11.4
J11.5
J11.6
J11.7
J11.8
J11.9
J11.10

J1.1
J1.2
J1.3
J1.4
J1.5
J1.6
J1.7
J1.8
J1.9
J1.10

J15.1
J15.2
J15.3
J15.4
J15.5
J15.6
J15.7
J15.8

J41.1
J41.2
J41.3
J41.4
J41.5
J41.6
J41.7
J41.8

J8.1
J8.2
J8.3
J8.4
J8.5
J8.6
J8.7
J8.8

J17.1
J17.2
J17.3
J17.4
J17.5
J17.6
J17.7
J17.8

J16.1
J16.2
J16.3
J16.4
J16.5
J16.6
J16.7
J16.8

+24V DC_RTN

Hota ir_Ov ertemp_H_AC

Drv@ SetSpd_L

U10

J2

1

1

J38

J37

J4

+24Vdc

Out_1
Out_2
Out_3
Out_4
Out_5
Out_6
Out_7
Out_8

J12

In_1
In_2
In_3
In_4
In_5
In_6
In_7

Com

Com

2

2

3

3

4

4

1

1

2

2

3

3

8
7
6
5
4
3
2
1

10
9
8
7
6
5
4
3
2
1

12
11
10

9
8
7
6
5
4
3
2
1

R/W-1, 22aw g twisted pair

R-1

W-1

Bl-12
R-11

V-8
V-7
V-6
V-5
V-4
V-3

Harnes s PN: 50178

D D

VFD CO NTROL LER - 39124

C C

Drv_ Fault_L

Boil er_Overtem p_H_AC

AUX_Br d_DGND

AUX_Brd_+5Vdc_Sw_Pwr

AUX_Brd_SW 3_Ena_L
AUX_Brd_SW 2_Ena_L

AUX_Brd_SW 1_Ena_L
AUX_Brd_D3_Ena_L
AUX_Brd_D2_Ena_L
AUX_Brd_D1_Ena_L

OR-5

BK-15

GY-15

GY-20

R1 4 .7K

R2 4 .7K

J41

8

AN-1

7
6

AN-2

5
4

AN-3

3
2

AN-4

Analog I/O Au x I/O Relay I/O Sign al I/O 24VAC_PWR SCK_COMM

1

J5 Com Port

VFD_C TRL_01

12345

Y(RD/Y /BK-1)

BK(RD/ Y/BK-1)

B B

RD(RD/ Y/BK-1)

Door _Sw Proximi ty

RD(RD/ BK-3)

BK(RD/ BK-3)

+24VDC

A A

RD-8

SW3

Bl Bk

Br

WATER
LEVEL
SENSOR

SW2

39337

Br

Bl

53247

HI_BRN
HI_BLK HI_K2_+
HI_BLU

SENS OR
INP UT

+24V DC_RETURN_BK10/B K6

5

Bk

HI GH
REL AY

HI_K2_COM

LO_K1_COM

LOW
REL AY

RETURN

Y-6

LO_K1_+

220/24

RT1

V-3

BL-6

Ca vit y

t

Inve rter_H. S.

W BL

RT2

t

BK

Prob es: 1k RT D

36720

4

J19.1

J19.2

J19.3

J19.4

Y/BK -1, 22a wg twiste d pair

RT3

t

WH/B K-2 , 22 awg twi sted pair

Quench

V/BK -1, 22a wg twiste d pair

Product

Y

RT4

t

V W

RT5

t

BL/B K-1 , 22 awg twi sted pair

WH/B K-1 , 22 awg twi sted pair

BKBKBK BK

Digita l Inputs Analog Inputs

24VAC_Pwr

Boiler

U6

+24VDC

J2.1

Buzzer

J2.2

+24VDC

J2.3

Vent

J2.4

+24VDC

J2.5

Quench

J2.6

+24VDC

J2.7

Chemic al_Pump

J2.8

Spd_Se l_Bit_0

J2.9

Spd_Se l_Bit_1

J2.10

Fwd_Ena_L

J2.11

Rev_Ena_L

J2.12

J3.1

+24VDC

J3.2
J3.3

Lights

J3.4

24VAC

J3.5

Cir_Pump

J3.6

+24VDC

J3.7

Delime _Pump

J3.8
J3.9

+24VDC

J3.10

Coolin g_Fan

J3.11
J3.12

J6.1
J6.2

HotAir _24V

J6.3

Relay Outputs

Oven_On

J6.4

Oven_On

J6.5

Boiler _24V

J6.6

Drv_Ok

J6.7

Drv_Ok

J6.8

K2B_NO

J6.9

K2B_Com

J6.10
J6.11
J6.12

K8-NO

J18.1

K8-C

J18.2

Spritz er_Sol

J18.3

+24VDC

J18.4

+24VDC _Rtn

J18.5

Cavity _Drain-

J18.6

Cavity _Drain+

J18.7

+24VDC

J18.8

Boiler _Drain -

J18.9

+24VDC _Rtn

J18.10

VFD - Relay Interface Module

J18.11
J18.12

J20.1
J20.2
J20.3
J20.4
J20.5
J20.6
J20.7
J20.8

J20.9
J20.10
J20.11
J20.12

J13.1

J13.2

J13.3

J14.1

J14.2

J14.3

J5.1

J5.2

PWM RS 232 Buzzer

J5.3

+24VDC
Boiler _Drain +

HotAir _Heat_Ena
SSR_A1
SSR_A2
+24VDC _Rtn

Fill_Sol
+24VDC
Boiler _Heat_On
Boiler _Heat_Ena

+24VDC

Buzzer

DGND

RS232 Out

RS232 In

DGND

PWM OUT

PWM OUT

DGND

RD-27

RD-16

GY-16
RD-24
OR-18

GY-17
GY-14
GY-19
GY-18

RD-15

RD-5

RD-17

RD-9

GY-9

RD-22 RD-22
OR-22

Y-9
RD-23
OR-23
BL-11

V-5

RD-10

BK-11
RD-11

BL-11
BL-1

BL-10
RD-5

RD(RD/ Y/BK-1)

Y(RD/Y /BK-1)

BK(RD/ Y/BK-1)

+24VDC

+24V DC_RTN

3

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L
Mtr_Fwd_Ena_L
Mtr_ Rev_Ena_L

Hotai r_24VAC
Hotair_ Pilot_Ena_H
Boiler_Pi lot_Ena_H

Boiler_2 4VAC

OR-23

Hotai r_Ena_H

BK

OR

OR/BK 2

BL-1

Hotair_ Main_On_H_AC

V-16

Boiler_Mai n_On_H_AC

Y-3

Boiler_Mai n_Ena_H

Lever Nut

RT1

THERMISTOR

39998

t

DC_Bu s[1.. 2]

R/BK -1, 22a wg twiste d pair

+24Vdc

+24Vdc _Rtn

R

Bk

-

__ _-__ _

-

-

B

A

RE V E CN RE VIS ION S D AT E

GA GE

MA TL

__ _-__ _

B1 0-00 5

B0 9-08 3

-

-

-

-

­WA TER S EN SOR BO ARD

­IN IT IAL R ELE ASE

-

2

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED
.XX X . XX A NGULAR HOLE

±.015 ±.03 ± 1° ±.005

BK-5
BK-21

TB2

39378

1_A
1_B

2_A
2_B

3_A
3_B

4_A
4_B

5_A
5_B

Term_Blk_5p

24VD C_RTN

__- __-__

__- __-__

04- 29-10

06- 18-10

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

BK-5

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

MH

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEM ATIC, BCX14G, MENUSELECT

DW G
BY

AP R

MH

BY

1 2

Vent_Sol

OR-18

1 2

Quench Sol enoid

MG1

V-13

1 2

Deli me Pump

Mtr_2

+ -GY-9

1 2

Cooling_Blwr

BL-10

1 2

Fill Solenoid

V-5

1 2

Spritzer_ Solenoid

+24V DC_RETURN_BK10/B K6

MG2

1 2

+

A

Drain Actuator

DATE
DATE

SHEET

06-18-10

SCALE

06-18-10 NONE

1

M961 6

-

BK-21GY_16

39793

3979 3

5064 3

1
2

1
2

1
2

1
2

DRAWING NUMBER REV

OF

31MH

BK-9/BK10

BK-6

BK-10

Lever Nut

Halogen La mp-12V

D0119 (X 4)

BK-5/B K-21

52855 B

5

4

3

2

1

36441

Hotair_ Pilot_Ena_H

OR-22

SW4
Cav ity_ Hi_Lmt

11

12

14

OR-6

OR-2

OR-20

WH-

Hota ir_Ov ertemp_H_AC

D D

OR-5

WH-2

U7 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

WH-3 WH -7

Line Cord

F.S.

1

1 2

3

Grn

J3

R10645

BK BL

OR-6

1 2

Pilot Gas Solenoid

R6490

TB1

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

Hotai r_Ena_H

Hotair_ Main_On_H_AC

OR-7

OR-20

OR-23

BL-1

L1_A

L1_B

L1_C

L1_D

C C

WH-

U8 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

DATE

06-18-10

DATE

06-18-10 NONE

WH-5

WH-6

SHEET
SCALE

F.S.

1

SPARK G AP .125"

F.S.

1

DRAWING NUMBER REV

OF

31MH

1

52855 B

Br-1, 14awg, 600V

Bl-1, 14awg, 600V

WH-3

G/Y-1, 14awg, 600V

CB1

20 Am p

1 2

39688

Br-5, 14awg, 600V

L1_A

L1_B

L1_C

L1_D

B B

Gnd_A

Gnd_B

Gnd_C

Gnd_D

1 2

Br-4, 18awg, 600V

Bl-4, 18awg, 600V

Bl-6, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

SW6

Heat Cut_O FF

Bk-2, 18awg, 600V

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

39669

Bk-1, 18awg, 600V

Bl-5, 18awg, 600V

1
2
3

Gnd

N

24356

T1

240V

120V

COM

41

2

3 6

38303

T2

240V

120V

COM

41

2

3 6

24Vdc Power Supply

24Vac

B: 24Vac

B: 24Vac_Rtn

+

-L
+M9608

-

+24Vdc
+24Vdc _Rtn
+24Vdc
+24Vdc _Rtn

CON 4

Br-2, 14awg, 600V

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

A A

Drv@ SetSpd_L
Drv_ Fault_L

Drv_ Input_ Com

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Bl-2, 14awg, 600V

GY-19
GY-18
GY-17
GY-14

GY-15
GY-20
BK-12

AC_1

1

NEU

2

GND

3

P24

1

1

2

2

3

3

4

4

5

5

6

G

BK

L

7

BK-13

1

11

2

12

3

CM2

4

FM

5

L

6

OI

39338

7

O

8

H

L100

T1

T2

T3

Inverter Drive

R1, 14 awg, 600V

1

W1, 14 awg, 600V

1

Bk3, 1 4awg, 600V

1

Pre_Se t Speeds:

binary select:

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

GY/BK- 1 Twi sted Pair

5

4

Hotai r_24VAC

Boiler_2 4VAC

WH-2

WH-1

Ctr l 24Vac [0..2]

R/BK-2 , 22a wg twisted pair

A_24 Vdc [0..2]

Cir_Mtr , 3p, 4 pol e

BR

MTR1

L2

BL

BK

OR-7

1 2

Pilot Gas Solenoid

30005

BL-1

1 2

Main Gas Solenoid

+24Vdc

+24Vdc _Rtn

Boiler_Pi lot_Ena_H

Boil er_Overtem p_H_AC

Boiler_En a_H

Boiler_Mai n_On_H_AC

Y-6

Y-7

Y-3

V-16

R2630

SW4
Boiler_Hi _Lmt

11

12

14

Y-2

Y-3

Y-8

WH-

U9 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

39332

L1

Gnd

N. C.

1 2

L3

GY GY

G

BK

-

__ _-__ _

-

-

B

A

RE V E CN RE VIS ION S D AT E

GA GE

3

MA TL

__ _-__ _

B1 0-00 5

B0 9-08 3

-

-

-

-

­WA TER S EN SOR BO ARD

­IN IT IAL R ELE ASE

-

2

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED
.XX X . XX A NGULAR HOLE

±.015 ±.03 ± 1° ±.005

__- __-__

__- __-__

04- 29-10

06- 18-10

Y-8

1 2

Pilot Gas Solenoid

RD-16

1 2

Main Gas Solenoid

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

MH

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEM ATIC, BCX14G, MENUSELECT

DW G
BY

AP R

MH

BY

5

D D

4

3

2

1

C C

R1

10K

R2

330

R3

10K

R4

330

R5

For Re ference Only

P5

J5

1

B B

AUX_Brd_D1_Ena_L
AUX_Brd_D2_Ena_L

AUX_Brd_D3_Ena_L
AUX_Brd_SW 1_Ena_L
AUX_Brd_SW 2_Ena_L
AUX_Brd_SW 3_Ena_L

AUX_Brd_+5Vdc_Sw_Pwr

AUX_Brd_ DGND

V-3
V-4
V-5
V-6
V-7
V-8

R-11
Bl-12

2
3
4
5
6
7
8
9
10
11
12

733-312

Harnes s PN: 50178

10
11
12

733-342

WAGO

1
2
3
4
5
6
7
8
9

To VFD Controller Aux I/O

10K

R6

330

LED
D1

142

SW1

SW2

LED
D3

3

Red LE DS - T100

Switch es - MEC
#10526 12,12 mm key_cap

3

SW3

142

LED

D2

3

142

A A

-

__ _-__ _

-

-

B

A

RE V E CN RE VIS ION S D AT E

GA GE

5

4

3

MA TL

__ _-__ _

B1 0-00 5

B0 9-08 3

-

-

-

-

­WA TER S EN SOR BO ARD

­IN IT IAL R ELE ASE

-

2

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED
.XX X . XX A NGULAR HOLE

±.015 ±.03 ± 1° ±.005

__- __-__

__- __-__

04- 29-10

06- 18-10

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

MH

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

MH

Title

APR BY

SCHEM ATIC, BCX14G, MENUSELECT

DW G
BY

AP R

BY

DATE

06-18-10

DATE

MH

06-18-10 NONE

SHEET
SCALE

DRAWING NUMBER REV

OF

31MH

1

52855 B

5

+24V DC_RTN

Cavi ty_Hi_ Limi t_H

Drv@ SetSpd_L

Ctr l 24Vac [0..2]

RD

D D

U2

1

2

J20

+

V

J35

PZ1

-

FRON T PANEL BUZZER

Y

1

RD

2

BK

3

Drv_ Fault_L

Boiler_Hi _Limit_H

O-5
GY-15

GY-20

Y-7

Y-6

SCK_COMM

WH(RD/ WH-1)

Mode S witch Header 24VA C_PWR

J37

J38

1
2
3

8
7
6
5
4
3
2
1

RD(RD/ WH-1)

BL-8
BL-7
BL-6

BL-5
BL-4
BL-3

(RD/WH -1),( RD/WH -2), 22awg twisted pair

OFF

Mode_Sw

2

CO MB I

1

STE AM

HO T A IR

CO O L DO WN

12

O FF

SW1

6

10

8

4

CO MB I

STE AM

HO T A IR

CO O L DO WN

BL-9

3
5

7
9
11

J4

+24Vdc

MANUAL CONT ROL - 53697

Aux I/O L ower K eypad Header

T1T2T3

Out_1
Out_2
Out_3
Out_4
Out_5
Out_6
Out_7
Out_8

Out_8
Out_9

Out_10

J12

Com

12
11
10

9
8
7
6
5
4
3
2
1

C C

12
11
10
9
8
7
6
5
4
3
2
1

Lower Keypa d (Li ght/Fan/Vent)

4

50725

BL-6

V-3

BK-15

Dig_Gnd
Door_C losed_H
Cavity _Hi_Lmt
Drv_@S etspd_L

Safety _Sw_Closed_H

SSR_He atSink_H
Door_L atched_H

Oven_O ff_H

Drv_Fa ult_L

+24Vdc _Out

Dig_Gnd
Boiler _Hi_Lmt

Lo_Lvl _Float
Hi_Lvl _Float

+24Vdc _Out

+24Vdc _Out

Dig_Gnd

Oven Prb

Oven Prb
Ctrl_Z one_Prb
Ctrl_Z one_Prb

Quench _Prb

Quench _Prb
Produc t_Prb
Produc t_Prb

Boiler _Prb

Boiler _Prb

J11.1
J11.2
J11.3
J11.4
J11.5
J11.6
J11.7
J11.8
J11.9
J11.10

J1.1
J1.2
J1.3
J1.4
J1.5
J1.6
J1.7
J1.8
J1.9
J1.10

J15.1
J15.2
J15.3
J15.4
J15.5
J15.6
J15.7
J15.8

J41.1
J41.2
J41.3
J41.4
J41.5
J41.6
J41.7
J41.8

J8.1
J8.2
J8.3
J8.4
J8.5
J8.6
J8.7
J8.8

J17.1
J17.2
J17.3
J17.4
J17.5
J17.6
J17.7
J17.8

Digita l Inputs Analog Inputs

3

U3

RD-24
OR-18

GY-17
GY-14
GY-19
GY-18

RD-5

RD-25

RD-22
GY-9

BK-26
RD-26

RD-27

RD-16

OR-8

BK-14

+24VDC

J2.1

Buzzer

J2.2

+24VDC

J2.3

Vent

J2.4

+24VDC

J2.5

Quench

J2.6

+24VDC

J2.7

Chemic al_Pump

J2.8

Spd_Se l_Bit_0

J2.9

Spd_Se l_Bit_1

J2.10

Fwd_Ena_L

J2.11

Rev_Ena_L

J2.12

J3.1

+24VDC

J3.2
J3.3

Lights

J3.4

24VAC

J3.5

Cir_Pump

J3.6

+24VDC

J3.7

Delime _Pump

J3.8
J3.9

+24VDC

J3.10

Coolin g_Fan

J3.11
J3.12

J6.1
J6.2

HotAir _24V

J6.3

Relay Outputs

Oven_On

J6.4

Oven_On

J6.5

Boiler _24V

J6.6

Drv_Ok

J6.7

Drv_Ok

J6.8

K2B_NO

J6.9

K2B_Com

J6.10
J6.11
J6.12

K8-NO

J18.1

K8-C

J18.2

Spritz er_Sol

J18.3

+24VDC

J18.4

+24VDC _Rtn

J18.5

Cavity _Drain-

J18.6

Cavity _Drain+

J18.7

+24VDC

J18.8

Boiler _Drain -

J18.9

+24VDC _Rtn

J18.10

VFD - Relay Interface Module

J18.11
J18.12

J20.1
J20.2
J20.3
J20.4
J20.5
J20.6
J20.7
J20.8

J20.9
J20.10
J20.11
J20.12

+24VDC
Boiler _Drain +

HotAir _Heat_Ena
SSR_A1
SSR_A2
+24VDC _Rtn

Fill_Sol
+24VDC
Boiler _Heat_On
Boiler _Heat_Ena

OR-22

V-16

BL-10

Y-9

V-16

RD-22

RD-23

OR-8

Y-9

2

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L
Mtr_Fwd_Ena_L
Mtr_ Rev_Ena_L

Hota ir_24VDC

Boiler_ 24VDC

BK

OR

OR/BK 2

Hotai r_Heat_On

Boiler_Heat _On

OR-18

V-13

GY-9

BL-10

1

1 2

Vent_Sol

1 2

Quench Sol enoid

MG1

1 2

Deli me Pump

M961 6

Mtr_2

+ -

1 2

Cooling_Blwr

1 2

Fill Solenoid

MG2

1 2

+

A

Drain Actuator

39324

39793

3979 3

-

BK-16

BK-22/ BK-27GY_16

BK-22

BK-16

BK-9/BK10

BK-10/ BK-23

OR

Y

V

B B

R1
POT

18234

Door _Sw Proximi ty

RD(RD/ BK-3)

BK(RD/ BK-3)

+24VDC

Br

RD-8

39337

SW2

Bl

SW3

Br

Bl Bk

RD/ BK-3[1.. 2]

A A

WATER
LEVEL
SENSOR

+24V DC_RETURN_BK10/B K6

5

Y-6

Bk

53247

HI GH
REL AY

HI_BRN
HI_BLK HI_K2_+
HI_BLU

SENS OR
INP UT

HI_K2_COM

LO_K1_+

LO_K1_COM

LOW
REL AY

220/24

RETURN

R-2

W-2

V-3

BL-6

Y/BK -1, 22a wg twiste d pair

V/BK -1, 22a wg twiste d pair

RT3

t

WH/B K-2 , 22 awg twi sted pair

Quench

Product

Y

RT4

V

t

BK

BK

WH/B K-1 , 22 awg twi sted pair

BL/B K-1 , 22 awg twi sted pair

Ca vit y

RT1

50310 39800 3 9800 39800 39783

t

Inve rter_H. S.

W BL

RT2

t

BKBK

Prob es: 1k RT D

4

RT5

J16.1
J16.2
J16.3
J16.4
J16.5
J16.6
J16.7
J16.8

J19.1

J19.2

J19.3

J19.4

t

Boiler

24VAC_Pwr

W

BK

+24VDC

J13.1

Buzzer

J13.2

DGND

J13.3

RD(RD/ Y/BK-1)

PWM RS 232 Buzzer

J14.1

J14.2

J14.3

J5.1

J5.2

J5.3

RS232 Out

RS232 In

DGND

PWM OUT

PWM OUT

DGND

Y(RD/Y /BK-1)

BK(RD/ Y/BK-1)

RT1

THERMISTOR

39998

TB2

39378

1_A
1_B

2_A
2_B

BK-5

3_A

BK-21

t

3_B

4_A
4_B

5_A
5_B

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

Term_Blk_5p

1
2

1
2

Halogen La mp-12V

D0119 (X 4)

1
2

1
2

BK-21/BK/ 9

BK-5

A_24 Vdc [0..2]

RD/B K-1 , 22 awg twi sted pair

+24V DC_RTN

+24Vdc

+24Vdc _Rtn

3

R

Bk

-

__ _-__ _

-

-

-

A

RE V E CN RE VIS ION S D AT E

GA GE

MA TL

__ _-__ _

__ _-__ _

B1 0-15 3

-

-

-

-

-

-

­IN IT IAL R ELE ASE

-

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED

.XX X . XX A NGULAR HOLE

2

±.015 ±.03 ± 1° ±.005

__- __-__

__- __-__

__- __-__

09- 09-10

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

___

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEM ATIC, BCX14E, MENUSELECT, 480V

DW G
BY

AP R
BY

DATE

DATE

MH

SHEET

09-09-10

SCALE

09-09-10 NONE

DRAWING NUMBER REV

21MH

OF

1

53852 A

5

4

3

2

1

39804

CB2

L1

R11092

TB3

1_A
1_B

2_A
2_B

D D

3_A
3_B

1_C
1_D

2_C
2_D

3_C
3_D

RD-

W-

BK-

Gnd_1 Gnd_ 2

Term_Blk _3P/W_Gnd

240V O utput 48 0V Input

T1

X1

X2
X3

X4

H1

H2
H3

Cavi ty_Hi_ Limi t_H

OR-6OR-5

H4

TRANS FORMER POWER, STEP DO WN

17223

39112

L2

L3

12

Cav ity_ Hi_Lmt

14

36441

+24Vdc

24Vdc _Rtn

BK-9/B K-21

60A

Trip Coil

39913

SW4

Boiler_Heat _On

11

BK-9/B K-21

T1

T2

T3

A2A1

RD-6/RD-7

Y-9

BK-9/B K-21

RD-

W-

BK-

Y-9

OR-7

L1

L2

39895

R11541

K1
Cont actor

1

2

3L36

7A18

K1_Aux

T1

4

T2

5

T3

BK-25

A2

RD-

W-

BK-

Y-8

RD- W- BK-

18KW H eatin g Ele ment Assembly

39277, 208V , 3Kw (X6) 18Kw total , 50A nominal

39801, 240V , 3Kw (X6) 18Kw total , 43A nominal

C C

CB1

15 Am p

39804

RD-

L1

T1

RD-

CB3

60A

Y-2

Y-7/Y-2

Hota ir_Heat_On

L2

L3

Boiler_Hi _Lmt

12

14

Trip Coil

39913

SW4

R2630

BK-8

W-

BK-

Br-5, 14awg, 600V

G/Y-1, 14awg, 600V

Bl-6, 14awg, 600V

Br-4, 18awg, 600V

SW6

39669

Bk-1, 18awg, 600V

Heat Cut_O FF

Bl-4, 18awg, 600V

B B

L1_A

L1_B

L1_C

L1_D

Br-2, 14awg, 600V

A A

Drv_ @SetSpd_L

Drv_ Fault_L

BK-8 B K-13/BK-8

BK-8

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L
Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

Drv_ Input_ Com

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Bl-2, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

GY-15
GY-20

GY-19
GY-18
GY-17
GY-14

BK-12

1

N

2

Gnd

3

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

1

N

2

Gnd

3

U6

1

L1

2

L2

3

L3/N

1

11

2

12

3

CM2

4

PCS

5

In_1

6

In_2

7

In_3

8

In_4

BK-13

BK-13/ BK-12

GY BK

5

9

In_5

10

L

11

L

12

OI

13

O

14

H

15

AM

PS-2

24Vdc Power Supply

PS-1

24Vdc Power Supply

M9608

L200

U

T1

V

T2

W

T3

Pre_Se t Speeds:

binary select:

39114

+

Hotair_ +24Vdc

-L

Hota ir_+24Vdc_Rtn

+M9608

Boiler_+24Vdc

-

Boiler_+2 4Vdc_Rtn

CON 4

+

-L
+

-

+24Vdc

+24Vdc _Rtn

CON 4

R1, 18 awg, 600V

W1, 18 awg, 600V

Bk3, 1 8awg, 600V

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

GY/B K-1[1.. 2]

4

RD-22

HotA ir_24VDC

BK-24

RD-23

Boiler_2 4VDC

BK-25

RD/B K-1[1.. 2]

R/BK-1 , 22a wg twisted pair

BK-5

BK-16

RD/B K-3[1.. 2]

R/BK-3 , 22a wg twisted pair

Cir_Mtr , 3p, 4 pol e

BR

MTR1

BL

BK

RD-8 , 2 2awg , 300V

39332

L1

Gnd

L2

L3

Boiler_Hi _Limit_H

N. C.

1 2

GY GY

Y-7

RD-6 , 2 2awg , 300V

RD- 8

GYBK

3

T2

T3

BK-8

A2A1

W-

BK-

OR-8

Y-8

L1

L2

39895

K2
Cont actor

1

2

3L36

7A18

K2_Aux

RD-6

11

BK-8

OR-8

-

__ _-__ _

-

-

-

A

RE V E CN RE VIS ION S D AT E

GA GE

MA TL

__ _-__ _

__ _-__ _

B1 0-15 3

-

-

-

-

-

-

­IN IT IAL R ELE ASE

-

TO LER AN CE S U NL ES S OT HER WISE SPE CIF IED

.XX X . XX A NGULAR HOLE

2

±.015 ±.03 ± 1° ±.005

R11541

__- __-__

__- __-__

__- __-__

09- 09-10

T1

4

T2

5

T3

BK-24

A2

RD-

W-

BK-

OR-7

RD- W- BK-

18Kw B oiler Heat ing Element Assy.

R2507, 208V , 6Kw ea.( X3) , 18Kw total, 50A nominal

R2510, 240V , 6Kw ea.( X3) , 18Kw total, 43A nominal

G.S. BLODGETT CORPORATION

___

50 L AKES IDE AVE . BU RLI NGTO N, VERM ONT 05 401

___

THIS D RAWING IS T HE PROP ERTY OF G. S. BLODGE TT CORP ORATION. NEITHER THIS DRAWING
NOR ANY INFORMATION CONTAINE D HEREIN MAY BE COPIED OR USED, IN WHOLE OR IN PART,
WITHO UT THE EXPRESS W RITTEN PERMISSION OF THE G.S. BLODGETT CORPORATION.

___

© G. S. B LOD GETT CO RPOR ATI ON. UNP UBLI SHE D W ORK. A LL R IGH TS R ESER VED

Title

MH

APR BY

SCHEM ATIC, BCX14E, 480V, MANUAL

DW G
BY

AP R
BY

DATE

09-09-10

DATE

MH

09-09-10 NONE

SHEET

SCALE

DRAWING NUMBER REV

22MH

OF

1

53852 A

5

GY-7

GY-20

GY-22

R11271 / 39784

TMR1

1

RD-8

Prb1-1

W

Prb1-2

BK

OR-4

J2

1

P2

OR-3

GY-5

GY-6

OR-1,3

BR-1

OR-14

Probe #1

Cav ity 1K

RTD1

t

39800

18
16

DCB51CM24

U4

J1

1

+24Vdc_Rtn

2

Flush_Disable

3

Fill_Ena

4

+24Vdc

5

Boiler_Delim e_Ena_L

6

Oven_On_L

J3

1

Combi

2

Steam

3

SOD_Pot_W

4

SOD_Pot_pwr

5

Spare

6

Hotair

7

SOD_PB_Ena_L

8

Spare

9

NC

10

Drain_Ena_L

11

NC

12

NC

BCX-2

TC1

J2-2

24V

J2-1

24_Rtn

J3-4

Prb2-1

W

BK

OR-9

P1 J 1

Probe2

Probe2

J3-3

Prb2-2

B_2 4Vdc [0..2]

D D

C C

B B

J1

+24Vdc

9

9

P1

RD-

R/BK-2 , 22a wg, 3 00V, twisted pair

J1

+24Vdc_ Rtn

10

10

P1

BK-

BK-13

Mode_Sw

BK-5

BK-5

1+3

SW1

5,7,9

39674

SW10

Steam _On_Demand

2
4

6
8
10

R8595

R10338

OR-2

Cool_Down

Combi

Oven _On_L

Steam

R7
POT

Steam_On_Demand

Convection

BK-3

RD-1

OR-1
GY-7

GY-1
GY-2
BK-1
BK-2

GY-3
BL-1

Prb2-1

W

BK

J1

4

P1

Optional
Probe #2

Produc t 1K

t

39783

Prb2-2

4 6

RTD2

J2

6

P2

BR-2

15

Y-

Y1
A1A2

Heat_Demand _In

Conv_Heat_Ena_ L

39669

3

3

2

2

5

5

39673

Series 1 30

Probe1

Probe1

J3-1

J3-2+J4-1

Prb1-1

Prb1-2

P2 P2

3

443

J2 J2

W

BK

4

OR-21

Y-10

JP1
JP1

J4

SOD_Lamp

Delime_Lam p

Boiler_Overtem p

Boiler_Ena_L

Spare

Lo_Water

R2

R1

J1P1

J2P2

NO

K1

COM

POT

CTR

RTN

J4-2

J4-3

Or

Y

V

J2-3
J2-4

3

GY-19

GY-18

GY-17

CR 1

4

12

8

BL-2

GY-19

GY-18

Y-10
OR-9

J2

7

7

P2

V-6

V-6

R1
POT

BL-2

Probe #3

Steam , 100K

Thermis tor

t

BK-6

18234

Y-1

GY-4

V-4

1
2

1
2
3
4
5
6
7
8

V-2

Y-5

OR-21

V-3

P1

1

1

P2

J1

8

8

J2

BK-9

BK-4

Stea m_Demand_Lamp
Clean_Lam p

V-5

Low_Water

BK-5
BK-9

BK-10

BK-10

BK-5

BK-14 V-11

3

11

BL-4

7
2

10

6
1

9

5

A1+

13
14

A2-

39786

BL-4

9

Quench_Ena_L

Door_C losed_H

39675

SW9

4

C
C

SW2

2+4

Light_Sw

39791

SW3

2+4

Vent_Sw

39791

1 2

SW15

0

1

Off

On
3

1

Closed

N.O .

2

SW _Rotar y_BCD

Coolin g Fan
R8015
Close on ri se @110F

Door _Sw_Proximity

Boiler Preh eat Control,
Open o n ris e at 185°F

Y-1

J2P2

9

GY-21

GY-10

1

GY-9

3

GY-8

Open

GY-11

GY-14

GY-15

BK-12

GY-12
GY-13

GY-10

J1

GY-8

GY-9

7

7

J1

P1

6

6

P1

J1

5

5

P1

BL-3

GY-11

J1

8

8

P1

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Mtr_Spd_Sel _Bit_0_Ena_L

Mtr_Spd_Sel _Bit_1_Ena_L

Drv@ SetSpd_L

Drv_ Input_ Com

Oven_On_L

Fwd_Ena_L

Rev_Ena_L
Spd_Se l_Bit_0
Spd_Se l_Bit_1
Conv_Heat_Ena_L

Coolin g_Fan

Lights

Boiler _Ena_L

Boiler_Delime_Ena_L

Fill_E na_L

Boiler_Drain_Ena_L

Quench _Ena_L

Vent

Buzzer_L

Y-5

Drv@Spd

Boiler _Overtemp_H

Lo_Wat er_H

V-12

BK-14

BR
BL
BK

R
BK
R
BK

1

Mtr_Fwd_En a

2

Mtr_Rev_Ena

3

Spd_Sel_0

4

Spd_Sel_1

5

Drv_@SetSpd

6

Inv_Com

7

Inv_Com

8

Inv_Com

J1

1

Y0

2

Y1

3

Y2

4

Y3

5

Y4

6

Y5

7

Y6

8

Y7

9

Y8

10

Y9

11

Y10

12

Y11

13

Y12

14

Y13

15

Y14

16

Y15

17

Y16

18

Y17

19

Y18

20

Y19

J2

1

X0

2

X1

3

X2

4

X3

5

X4

6

X5

7

X6

8

X7

9

X8

10

X9

11

X10

12

X11

13

X12

14

X13

15

X14

16

X15

17

X16

18

X17

19

X18

20

X19

J5

1

+24Vdc

2

+24Vdc_Rtn

3

Door_Sw_Pw r

4

Door _Sw_Rtn

5

Door_Closed_H

6

Cooling_Fan

7

Cooling _Fan _Rtn

8

Lights

9

Lights_Rtn

10

Unused

U5

BCX_IFB_01

Br Bk

SW8

39337

Bl

BR

BKBL

R/BK-5 , 22a wg, 3 00V, Twisted Pair

R/BK-3 , 22a wg, 3 00V, Twisted Pair 22awg , 300V,

2

Mtr_2

1 2

+

R

Cooling _Fan

IFB

39672

M9616

A

Hotair_24Vac

Hotair_24Vac _Rtn

Hotair_Pilot_ Ena_H

Main_Burner _Ena_H_AC

Main_Burner _On_H_AC

Buzzer_24Vac

Cavity_Overtemp_H_ AC

Boiler_24Vac

Boiler_24Vac _Rtn

Boiler_Pilot_ Ena_H

Boiler_Ena_H

Boiler_Main _On_H_AC

Boiler_Overtem p_H_AC

+24Vdc_Rtn
Hi_Lvl_Float
Lo-Lvl_Float

Quench_Sol
Drain_Close

Drain_Open

Delime_Sol

+24Vdc_Rtn

+24Vdc_Rtn

-

BK

R_Main

+24Vdc

Fill_Sol_A
Fill_Sol_B

Vent_Sol

+24Vdc

Gnd

J4J3

J6

J8

J7

24Vac

1

24Va c_Rtn

2
3
4
5
6
7
8

+24Vdc

1

+24Vdc _Rtn

2
3

Y-3

4
5
6

+24Vdc

1

+24Vdc _Rtn

2
3
4
5
6
7
8
9
10
11
12

Quench_Ena_L

1

+24Vdc _Rtn

2
3

+24Vdc

+24Vdc _Rtn

RD/W-2 , 22a wg twisted pair

OR-22
OR-23

BL-1

OR-5

RD/BK- 6, 22 awg t wisted pair

RD-16

R/BK-4 , 22a wg, 3 00V, Twisted Pair

GY-21

RD

+24Vdc

BK

RD

BK

GY_16

RD/BK- 1, 22 awg, 300V, Twisted Pair

RD/BK- 6, 22 awg, 300V, Twisted Pair

1

Hota ir_24Vac [ 0..2]

Hotair_ Pilot_Ena_H

Main_Burn er_Ena_H_AC

Main_Burn er_On_H_AC

Cav ity_O verTemp _H_AC

1 2

OR-18

Quench Sol enoid

SW16

1 2

Quench
39806
Close on ri se @150F

1 2

Vent_Sol

1 2

Steam So lenoid

A_24 Vdc [0..2]

+24Vdc_ Rtn

+24Vdc

39793

R-13

BK-19

N.O .

39324

BK-21

RD-16

1

TB2

1_A

BK-4

RT1

THERMISTOR

A A

39689 (X 5)

Oven _On_L

5

RD-5

1

2

DS5
Pwr_On

OR-2

Heat_ Demand_I N

4

RD-4

1

2

DS6
Heat_ Demand

V-7

Steam _Demand_Lamp

RD-3

1

2

DS9
Stea m_Demand

V-2

Clean_Lam p

RD-2

1

DS8
Delim e

2

V-3

Low_Water

1

2

DS7
Low Wa ter

V-5

3

5 ohm @25C

39998

t

1_B

2_A
2_B

3_A
3_B

4_A
4_B

5_A
5_B

2

Term_Blk_5p

39378

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

2

1
2

1
2

1
2

Title

BX14G Manu al Control S chematic

Size Do cument Number R ev

C

Dat e: Sheet

50546

Halogen La mp-12V

D0119 (X 4)

1

1 3Wednesday, August 08, 2007

of

07

5

4

3

2

1

36441

Hotair_ Pilot_Ena_H

OR-22

SW4
Cav ity_ Hi_Lmt

11

12

14

OR-6

OR-2

OR-20

WH-

Cav ity_O verTemp _H_AC

D D

OR-5

WH-2

U7 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

WH-3 WH -7

Line Cord

F.S.

1

1 2

3

Grn

J3

R10645

BK BL

OR-6

1 2

Pilot Gas Solenoid

R6490

TB1

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

Main_Burn er_Ena_H_AC

Main_Burn er_On_H_AC

OR-7

OR-20

OR-23

BL-1

L1_A

L1_B

L1_C

L1_D

C C

WH-

U8 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

Br-1, 14awg, 600V

Bl-1, 14awg, 600V

WH-3

G/Y-1, 14awg, 600V

CB1

20 Am p

1 2

39688

Br-5, 14awg, 600V

L1_A

L1_B

L1_C

L1_D

B B

Gnd_A

Gnd_B

Gnd_C

Gnd_D

1 2

Br-4, 18awg, 600V

Bl-4, 18awg, 600V

Bl-6, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

SW6

Heat Cut_O FF

39669

Bk-1, 18awg, 600V

240V

120V

COM

38303

T1

2

3 6

41

24Va c_Rtn

24Vac

Hota ir_24Vac [ 0..2]

R/W-2, 22aw g twisted pair

WH-2

OR-7

BL-1

1 2

Pilot Gas Solenoid

30005

1 2

Main Gas Solenoid

WH-5

F.S.

1

+24Vdc

+24Vdc_ Rtn

A_24 Vdc [0..2]

R/BK-2 , 22a wg twisted pair

B_24 Vdc [0..2]

R/BK-1 , 22a wg twisted pair

MTR1

Br

1

Bl

2

Bk

3

39332

Motor

Wiring Harn ess Reference:

50030 - Hi Volta ge Wiring Harness

5003 2 - Lo Vol tage Wi ring Ha rness ??

50109 - Fro nt Co ntrol Panel Wiring Harness

3

2

Title

BX14G Manu al Control S chematic

Size Do cument Number R ev

Dat e: Sheet

50546

1 3Wednesday, August 08, 2007

1

of

07

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

1

N

2

Gnd

3

24Vdc Power Supply

M9608

+

-L
+

-

+24Vdc
+24Vdc _Rtn
+24Vdc
+24Vdc _Rtn

CON 4

Br-2, 14awg, 600V

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

A A

Mtr@SetSpd_L

Drv_ Input_ Com

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Bl-2, 14awg, 600V

GY-19
GY-18
GY-17
GY-14

GY-15

BK-12

5

AC_1

1

NEU

2

GND

3

P24

1

1

2

2

3

3

4

4

5

5

6

L

7

BK-13

1

11

2

12

3

CM2

4

FM

5

L

6

OI

39338

7

O

8

H

T1

T2

T3

Inverter Drive

R1, 14 awg, 600V

1

W1, 14 awg, 600V

1

Bk3, 1 4awg, 600V

1

Pre_Se t Speeds:

binary select:

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

4

5

4

3

2

1

J11.1
J11.2
J11.3
J11.4
J11.5
J11.6
J11.7
J11.8
J11.9
J11.10

J1.1
J1.2
J1.3
J1.4
J1.5
J1.6
J1.7
J1.8
J1.9
J1.10

J15.1
J15.2
J15.3
J15.4
J15.5
J15.6
J15.7
J15.8

J41.1
J41.2
J41.3
J41.4
J41.5
J41.6
J41.7
J41.8

J8.1
J8.2
J8.3
J8.4
J8.5
J8.6
J8.7
J8.8

J17.1
J17.2
J17.3
J17.4
J17.5
J17.6
J17.7
J17.8

J16.1
J16.2
J16.3
J16.4
J16.5
J16.6
J16.7
J16.8

J19.1

J19.2

J19.3

U5

Digita l Inputs Analog Inputs

24VAC_Pwr

J2.1
J2.2
J2.3
J2.4

+24VDC

J2.5

Quench

J2.6

+24VDC

J2.7

Chemic al_Pump

J2.8

Spd_Se l_Bit_0

J2.9

Spd_Se l_Bit_1

J2.10

Fwd_Ena_L

J2.11

Rev_Ena_L

J2.12

J3.1

+24VDC

J3.2
J3.3

Lights

J3.4

24VAC

J3.5

Cir_Pump

J3.6
J3.7
J3.8
J3.9

+24VDC

J3.10

Coolin g_Fan

J3.11
J3.12

J6.1
J6.2
J6.3

Relay Outputs

J6.4
J6.5
J6.6
J6.7
J6.8

Heat_Ena

J6.9

+24VDC

J6.10
J6.11
J6.12

J18.1
J18.2

Spritz er_Sol

J18.3

+24VDC

J18.4

+24VDC _Rtn

J18.5

Cavity _Drain-

J18.6

Cavity _Drain+

J18.7

+24VDC

J18.8
J18.9

VFD - Relay Interface Module

J18.10
J18.11
J18.12

J20.1
J20.2
J20.3
J20.4
J20.5
J20.6
J20.7
J20.8

J20.9
J20.10
J20.11
J20.12

J13.1

J13.2

J13.3

J14.1

J14.2

J14.3

J5.1

J5.2

PWM RS 232 Buz zer

J5.3

Heat_Ena
SSR_A1
SSR_A2
+24VDC _Rtn

Rinse_ Pump
+24VDC
Door_Lock
+24VDC

+24VDC

Buzzer

DGND

RS232 Out

RS232 In

DGND

PWM OUT

PWM OUT

DGND

RD-24
BL-10

GY-17
GY-14
GY-19
GY-18

RD-5

RD-22
GY-9

RD-22 RD-22
OR-22

OR-23
BL-11

V-5
RD-20/ RD-21

BL-11
BL-1

RD(RD/ Y/BK-1)

Y(RD/Y /BK-1)

BK(RD/ Y/BK-1)

OR-23

THERMISTOR

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L
Mtr_Fwd_Ena_L
Mtr_ Rev_Ena_L

IGN_ 24VAC

Hotair_ MV_Ena_H

RT1

t

BK-5
BK-21

BL-1

OR-22

Hotair_ Pilot_Ena_H

Hotair_ MV_On_H

TB2

1_A
1_B

2_A
2_B

3_A
3_B

4_A
4_B

5_A
5_B

Term_Blk _5p

1_C
1_D

2_C
2_D

3_C
3_D

4_C
4_D

5_C
5_D

V-5

BL-10

GY-9

39796

1 2

Water Solenoid_A

1 2

Quench Sol enoid_B

Mtr_2

+ -

1 2

Cooling_Blwr

M9616

R-14

R-14

1
2

1
2

1
2

1
2

BK-6

BK-10

BK-9

Halogen La mp-12V

D0119 (X 4)

BK-5/B K-21

Ctr l 24Vac [0..2]

+24V DC_RTN

Drv@ SetSpd_L

U2

J2

1

1

2

2

D D

VFD CO NTROL LER - 39124

C C

Analog I/O Aux I/O Relay I/O Sig nal I/O 24VAC_PWR SCK _COMM

Larg e_VFD_CTRL

B B

+24VDC

+24V DC_RTN

3
4

J38

1
2
3

J37

In_1
In_2
In_3
In_4
In_5
In_6
In_7

Com

J4

+24Vdc

Out_1
Out_2
Out_3
Out_4
Out_5
Out_6
Out_7
Out_8

Com

J12

12
11
10

9
8
7
6
5
4
3
2
1

J41

8

AN-1

7
6

AN-2

5
4

AN-3

3
2

AN-4

1

RD(RD/ BK-3)

BK(RD/ BK-3)

3
4

1
2
3

8
7
6
5
4
3
2
1

10
9
8
7
6
5
4
3
2
1

R-1

W-1

Bl-12
R-11

V-8
V-7
V-6
V-5
V-4
V-3

Harnes s PN: 50178

Door _Sw Proximi ty

Br B k

SW2

39337

R/W-1, 22aw g twisted pair

Bl

AUX_Brd_ DGND

AUX_Brd_+5Vdc_Sw_Pwr

AUX_Brd_SW 3_Ena_L
AUX_Brd_SW 2_Ena_L

AUX_Brd_SW 1_Ena_L
AUX_Brd_D3_Ena_L
AUX_Brd_D2_Ena_L
AUX_Brd_D1_Ena_L

Y-6

BK-13/ BK-14

BK-13/ BK-14

Y-6

GY-15

Safety _Sw_Closed_H

V-14

R-2

W-2

Door_C losed_H

Hi_Lmt _Trip

Drv_@S etspd_L

SSR_He atSink_H
Door_L atched_H

Oven Prb

Oven Prb
Ctrl_Z one_Prb
Ctrl_Z one_Prb

Quench _Prb
Quench _Prb

Produc t_Prb
Produc t_Prb

39374

SW3

RD-23 V-14

1 2

5

SSR He atsink ­Close @60°C

Ca vit y

Prb1_1 Prb2_1

RT1

t

Inve rter_H. S.

W

RT2

t

BK BK

36720

Prb2_2Prb1_2

Prob es: 1k RT D

4

Y/BK -1, 22a wg twiste d pair

WH/B K-2 , 22 awg twi sted pair

BL/B K-1 , 22 awg twi sted pair

WH/B K-1 , 22 awg twi sted pair

RT3

t

Quench

RT4

RD-20

Product

+24VDC 24 VDC_RTN

t

3

2

BK-5

Blodgett Oven Company

50 L akesid e Ave.
Burling ton, VT 05401

Title

BX14G VFD CONTROL

Size Do cument Number R ev

C

Dat e: Sheet

Control Section

of

1

1 2Fr id ay, Augu st 2 4, 2007

02

N.O .

A A

5

4

3

2

1

R1

10K

R2

D D

330

R3

10K

R4

330

R5

For Reference Only

10K

R6

C C

P5

1

AUX_Brd_D1_Ena_L
AUX_Brd_D2_Ena_L

AUX_Brd_D3_Ena_L
AUX_Brd_SW1_Ena_L
AUX_Brd_SW2_Ena_L
AUX_Brd_SW3_Ena_L

V-3
V-4
V-5
V-6
V-7
V-8

2
3
4
5
6
7
8
9

AUX_Brd_+5Vdc_Sw_Pwr

AUX_Brd_DGND

R-11
Bl-12

10
11
12

733-312

Harness PN: 50178

J5

1
2
3
4
5
6
7
8

9
10
11
12

733-342

WAGO

330

To VFD Controller Aux I/O

B B

LED
D1

4

3

SW1

1

2

LED
D2

LED
D3

4

3

4

SW2

1

2

1

Red LEDS - T100

Switches - MEC
#1052612,12mm key_cap

3

SW3

2

CONFIDENTIAL

A A

5

4

3

2

Blodgett Oven Company

50 Lakeside Ave.
Burlington, VT 05401

Title

3 Button PCB

Size Document Number Rev

B

39122

Date: Sheet

o f

1 1Friday, August 24, 2007

1

A

5

4

3

2

1

36441

Hotair_ Pilot_Ena_H

OR-22

SW4
Cav ity_ Hi_Lmt

11

12

14

OR-6

OR-2

OR-20

WH-

Cav ity_O verTemp _H_AC

D D

OR-5

WH-2

U7 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

WH-3 WH -7

Line Cord

F.S.

1

1 2

3

Grn

J3

R10645

BK BL

OR-6

1 2

Pilot Gas Solenoid

R6490

TB1

Gnd_A

Gnd_B

Gnd_C

Gnd_D

Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

Hotair_ MV_Ena_H

Hotair _MV_ON_H

OR-7

OR-20

OR-23

BL-1

L1_A

L1_B

L1_C

L1_D

C C

WH-

U8 Ign_Mod

1

PV

2

THS

3

MV

4

Sense

5

Com

Spark

20821

G770-M GC-3

Com1

Com2

Com3

Com4

SPARK GAP .125"

Br-1, 14awg, 600V

Bl-1, 14awg, 600V

WH-3

G/Y-1, 14awg, 600V

CB1

20 Am p

1 2

39688

Br-5, 14awg, 600V

L1_A

L1_B

L1_C

L1_D

B B

Gnd_A

Gnd_B

Gnd_C

Gnd_D

1 2

Br-4, 22awg, 600V

Bl-4, 22awg, 600V

Bl-6, 14awg, 600V

TB1
Term_Blk _AC_Gnd_3p

L2_A

L2_B

38605

L2_C

L2_D

Heat Cut_O FF

SW6

39669

Bk-1, 18awg, 600V

Br-7

BL-7

240V

120V

COM

38303

T1

2

3 6

2

3 6

38303

IGN _24Vac

41

IGN_ 24Vac_Rtn

T2

41

R

W

WH-2

Ctr l 24Vac [0..2]

OR-7

BL-1

1 2

Pilot Gas Solenoid

30005

1 2

Main Gas Solenoid

WH-5

F.S.

1

+24VDC

+24V DC_RTN

Br-3, 18awg, 600V
Bl-3, 18awg, 600V

1

N

2

Gnd

3

24Vdc Power Supply

M9608

+

-L
+

-

+24Vdc
+24Vdc _Rtn
+24Vdc
+24Vdc _Rtn

CON 4

Br-2, 14awg, 600V

Mtr_Spd_Sel _Bit_0_Ena_L
Mtr_Spd_Sel _Bit_1_Ena_L

A A

Mtr@SetSpd_L

Drv_ Input_ Com

Mtr_Fwd_Ena_L

Mtr_ Rev_Ena_L

Bl-2, 14awg, 600V

GY-19
GY-18
GY-17
GY-14

GY-15

BK-12

5

AC_1

1

NEU

2

GND

3

P24

1

1

2

2

3

3

4

4

5

5

6

L

7

BK-13

1

11

2

12

3

CM2

4

FM

5

L

6

OI

39338

7

O

8

H

T1

T2

T3

Inverter Drive

R1, 14 awg, 600V

1

W1, 14 awg, 600V

1

Bk3, 1 4awg, 600V

1

Pre_Se t Speeds:

binary select:

A20: 0 00 - V_Lo_ Spd Freq = 20hz

A21: 0 01 - Lo_Sp d Freq = 30hz

A22: 0 10 - Hi_Sp d Freq = 40hz

A21: 0 11 - V_Hi_ Spd Freq = 50hz

4

MTR1

Br

1

Bl

2

Bk

3

39332

Motor

Blodgett Oven Company

50 L akesid e Ave.
Burling ton, VT 05401

Title

BX14G VFD CONTROL

Size Do cument Number R ev

C

3

2

Dat e: Sheet

POWER SECTION

of

1

2 2Fr id ay, Augu st 2 4, 2007

02

Error Codes

Manual Control W/Meat Probe.

Errors messages

On any Error condition the K1 output relay will de-energize.

Display reads “E r r 2” indicates open or shorted cavity probe, Check for ohm’s @ 75° = 1090Ω

Display reads “E r r 3” indicates open or shorted meat probe (If) it is plugged in at the time check to see if the
meat probe has been activated with/out a meat probe in jack.

Meat probe is 1K check for ohm’s @ 75° = 1090Ω

The top two terminals on the back of the temperature control are the cavity probe location and the bottom
two and the meat probe terminal.

56

Error Codes

New Manual Control W/Meat Probe

Error Codes

E-01 Cavity Probe open/shorted Access Codes
E-02 Boiler Probe open/shorted Factory 3228
E-03 High Float switch Service 7378
E-04 Low Float switch Manager 6647
E-05 Communication Error
E-06 Cooling Fan Probe Error
E-07 Delime
E-08 Cavity Hi Limit
E-09 Boiler Over-temp
E-10 Quench Probe Error
E-11 Fill Valve Error
E-12 Motor
E-13 Meat Probe
E-14 Flush

57

Error Codes

MenuSelect Control W/Meat Probe

Error Message

ERROR – COOLING FAN PROBE COOLING FAN PROBE ERROR and flash call for Service
ERROR – QUENCH PROBE QUENCH PROBE ERROR and flash call for service
ERROR – FAN ERROR FAN ERROR and flash call for service
ERROR – COMM ERROR COMM ERROR and flash call for service
ERROR – CAVITY PROBE CAVITY PROBE ERROR and call for service

ERROR – CAVITY HI TEMP CAVITY HI TEMP ERROR and call for service

ERROR – BOILER HI TEMP BOILER HI TEMP ERROR and call for service

ERROR – BOILER PROBE BOILER PROBE ERROR and call for service

ERROR – WATER LEVEL WATER LEVEL ERROR and call for service

ERROR – WATER LEVEL SWITCH DELIME ERROR and WATER LEVEL SWITCH

Access Codes

Factory 3228
Service 7378
Manager 6647

Display Will Read

58