Blodgett BC-14E Service Manual

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BC14E AND BC14G

COMBINATION OVEN STEAMER

SERVICE AND REPAIR MANUAL

BLODGETT COMBI

www.blodgett.com

50 Lakeside Avenue, Box 586, Burlington, Vermont 05402 USA Telephone (800) 331Ć5842, (802) 860Ć3700 Fax: (802)864Ć0183

PN R10251 Rev A (1/02)

E 2002 - Blodgett Combi

TABLE OF CONTENTS

Section 2 BC14G Installation

Installation Specifications/Information 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Oven Location 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stacking 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Plumbing Connections 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Door Adjustments 1-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 3 Operation and Maintenance

Standard Controls 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optional Meat Probe 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deliming 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 4 BC14G Troubleshooting

BC14G Troubleshooting Guide 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Incoming Power Check 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Hot Air Flow Chart 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Steam Flow Chart/Water Fill 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Combi Flow Chart 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G On Demand Steam Flow Chart 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Flush Flow Chart 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Water Fill/Meat Probe/condensate/cooling fan 3-9. . . . . . . . . . . . . . . . . . .

BC14G Drain Assembly 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Flue Assembly 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G Timer Settings 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 5 BC14G Schematics

BC14G 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14G for CE 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 6 PreĆSite Visit Questions

Troubleshooting Sequence 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 7 Component Identification

Component Identification 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Component Location Diagrams 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 8 BC14E Schematics

BC14E 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E for CE 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TABLE OF CONTENTS

Section 9 BC14E Troubleshooting

BC14E Troubleshooting Guide 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Safety Limits Flow Chart 8-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Hot Air Flow Chart 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Steam Flow Chart 8-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Combi Flow Chart 8-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E On Demand Flow Chart 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Flush Flow Chart 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Water Fill/Meat Probe 8-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Drain Assembly 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BC14E Timer Settings 8-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 10 BC14E Installation

Installation Specifications 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Oven Location and Leveling 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stacking 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Plumbing Connections 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Door Adjustments 9-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHAPTER 1

BC14G INSTALLATION

BC14G

INSTALLATION SPECIFICATIONS/INFORMATION

Before starting to troubleshoot an oven, verify the oven has been installed correctly. The installation of the electric and gas connections must be performed by a qualified installer only. The installation must conĆ form to all local and national installation standards. A hood system is required with the BC14G.

PLUMBING SPECIFICATIONS - BC14G/AA

Water

Water Pressure 30 PSI (207 kPa) minimum

50 PSI (345 kPa) maximum

Water Connection 3/4" Hose Hot and Cold Water

Water Regulator Setting Preset to 20 PSI (138 kPa)

Drainage Atmospheric Vented Drain

Drain Connection 2.00" (50.8mm) Copper

Avg Water Drain Temp. Approximately 160_F (71_C)

TABLE 2

MAXIMUM SHELF LOADING

BC14G 100 lbs (45.5 Kg)

TABLE 1

PLUMBING SPECIFICATIONS - BC14GDS/AA

Water

Water Pressure 30 PSI (207 kPa) minimum

50 PSI (345 kPa) maximum

Water Connection 3/4" Hose Cold Water

Water Regulator Setting Preset to 20 PSI (138 kPa)

Drainage Atmospheric Vented Drain

Drain Connection 2.00" (50.8mm) Copper

Avg Water Drain Temp. Approximately 160_F (71_C)

NOTE: For steam requirements see page 1-5 STEAM CONNECTION for the BC14GDS.

TABLE 3

1-1

INSTALLATION

RATINGS - GAS APPLIANCES - BC14G/AA

Gas Type Gas Input Voltage Phase Amps Motor

Natural Steam - 55,000 BTU/Hr

Hot Air - 65,000 BTU/Hr

Total - 115,000 BTU/Hr

Propane Steam - 48,000 BTU/Hr

Hot Air - 65,000 BTU/Hr

Total - 113,000 BTU/Hr

3/4" FNPT connector for all U.S. and Canadian installations

RATINGS - GAS APPLIANCES - BC14GDS/AA

Gas Type Gas Input Voltage Phase Amps Motor

Natural 65,000 BTU/Hr

Propane 65,000 BTU/Hr

3/4" FNPT connector for all U.S. and Canadian installations

208Ć240 1 15 1/2HP 208Ć240VAC, 50/60 Hz

120 1 15 1/2HP 208Ć240VAC, 50/60 Hz

208Ć240 1 15 1/2HP 208Ć240VAC, 50/60 Hz

120 1 15 1/2HP 208Ć240VAC, 50/60 Hz

TABLE 4

208Ć240 1 15 1/2HP 208Ć240VAC, 50/60 Hz

120 1 15 1/2HP 208Ć240VAC, 50/60 Hz

208Ć240 1 15 1/2HP 208Ć240VAC, 50/60 Hz

120 1 15 1/2HP 208Ć240VAC, 50/60 Hz

TABLE 5

GAS PRESSURE - BC14G/AA and BC14GDS/AA

Gas

Type Pressure

Natural 7-14" W.C. .0531" dia .042" dia 3.5" W.C. 3.5" W.C.

Propane 12-14" W.C. .032" dia .026" dia 10.0" W.C. 10.0" W.C.

Inlet

Orifice Size at Sea Level Manifold Pressure

Hot Air Steam Hot Air Steam

TABLE 6

1-2

BC14G

OVEN LOCATION

Certain minimum clearances must be maintained between the oven and any combustible or nonĆ combustible construction. See the following table.

The following clearances are recommended for servicing.

D Oven body sides - 12" (30cm)

D Oven body back - 12" (30cm)

NOTE: On gas models, routine servicing can usuĆ

ally be accomplished within the limited movement provided by the gas hose reĆ straint. If the oven needs to be moved furĆ ther from the wall, the gas must first be turned off and disconnected from the oven before removing the restraint. Reconnect the restraint after the oven has been reĆ turned to its normal position.

Left Side Heat Shield

Heat sources should not be near the air vents loĆ cated on the left hand side of the gas appliance. Consult the factory for optional protective side heat shield.

BC14G P/N R9527

MINIMUM REQUIRED

Oven

Model

Right Side Left Side Back

BC14G 1"

(25.4mm)6"(152.4mm)6"(152.4mm)

CLEARANCES

TABLE 7

1-3

STACKING

WARNING!!

Stacking should be performed by qualiĆ fied installation personnel only. The apĆ pliances are heavy. Take care to use propĆ er tools and techniques when lifting and stacking appliances.

1. Remove the drip pan from the top appliance.

2. Attach the legs or casters to the bottom apĆ pliance.

3. Place the top appliance on the bottom apĆ pliance. Be sure all four sides are flush.

INSTALLATION

4. Bolt the two appliances together using the bolts provided.

5. Attach the flue vents as shown.

6. Replace the drip pan.

7. Connect the drain, gas (if applicable) electrical and water. Refer to page 1-5.

NOTE: An optional gas plumbing manifold may be

purchased from Blodgett Combi. Order part number R9570. An optional drain plumbing manifold may be purchased from Blodgett Combi. Order part number R9381 for single or top ovens.

Steam

Generator

Flue

Steam Vent

Assembly

Option

Hot Air

Flue

FIGURE 1

1-4

Drip Pan

Rear View

1.125" I.D. Hose

from Drip Pan Drain

BC14G

PLUMBING CONNECTIONS

WATER CONNECTION

Connect the appliance to quality water (refer to specs below) via a pressure hose with 3/4" (19mm) couplings. The water pressure needs to be beĆ tween 30 psi (min) and 50 psi (max). All ovens are supplied with a water manifold which allows for one, cold water only connection to the oven. This water connector must have a brass water restrictor attached to it, which is part of the manifold assemĆ bly. Should a customer wish to supply treated waĆ ter to the steam generator, a kit can be added to the oven which supplies a plug for the water manifold and a separate water flow restrictor.

Water must meet the following minimum requireĆ ments:

D Total Dissolved Solids (TDS) content will not

exceed 30 parts per million.

D Water PH must be 7.0 or higher.

WARNING!!

Operating the appliance without the water restrictor installed will invalidate the warĆ ranty. The use of poor quality water will inĆ validate the warranty.

DRAIN CONNECTION

The waste drain assembly must be constructed of 2Ćinch copper and be atmospherically vented. The venting must have a riser so the steam vents above the top of the oven. In a stacked oven configuraĆ tion, the venting on the bottom oven must vent above the top oven. It is recommended that sepaĆ rate drain lines be run on stacked ovens. Refer to FIGURE 3 for a recommeded water drain configuĆ ration.

Vents

Steam

Hot Water

Cold Water

Option 1

Cold Water

Option 2

Water Connections Rear of Appliance

FIGURE 2

Drains

FIGURE 3

STEAM CONNECTION FOR BC14GDS

Steam supply line is 3/4" NPT. Steam must be clean, dry and potable. A particle screen and bucket trap may be needed and are recommended. 60 lbs per hour is the maximum usage per oven. Steam supply pressure should not exceed 40 to 50 psi. The flow pressure is 1Ć1/2 to 3Ć1/2 psi and is set at the steam pressure regulator supplied inside the oven.

1-5

DOOR ADJUSTMENTS

INSTALLATION

NOTE: When making door adjustments, always

adjust the hinge side first.

1. Swing the door so it just hits or runs into the catch on the left hand side of the door. DO NOT latch the door handle to the catch on the oven body. The left hand side of the door should just be touching the gasket evenly from top to bottom.

Adjusting the Hinges

NOTE: If you need to adjust the hinges, always adĆ

just the top hinge first.

NOTE: The hinges on the door have no adjustment,

you can only adjust the hinge on the oven.

1. Adjust the top hinge as follows:

A.) Loosen the three allen head bolts on the

top hinge attached to the oven.

B.) Tap the hinge in or out as needed. Keep the

hinges parallel as shown in FIGURE 4C.

C.) Tighten the three allen head bolts

2. Adjust the bottom hinge as follows:

A.) You must remove the weight of the door

from the bottom hinge to adjust it. To reĆ move the weight from the hinge, slide a screwdriver head into the gap where the two top hinges touch and pivot. Lift up the door slightly.

A.) Loosen the three allen head bolts on the

bottom hinge attached to the oven.

B.) Tap the hinge in or out as needed. Keep the

hinges parallel as shown in FIGURE 4C.

C.) Tighten the three allen head bolts.

D.) Remove the screwdriver to lower the door.

Adjusting the Catch

Adjust the catch as follows:

1. In the top of the door handle is a round roller. Swing the door until the door handle is close to the catch on the oven.

2. Loosen the two bolts holding the latch to the face of the appliance.

3. Adjust the catch from side to side until the head of the catch is centered with the roller.

4. Adjust the catch up and down. There should be a small clearance between the wheel on the door handle and the tooth of the catch on the oven. See FIGURE 5. In most cases the catch will be all the way up.

5. Tighten the two bolts that hold the catch in place.

6. For easy alignment, swing the door close to the catch. Use a felt tipped marker on the door handle to mark the catch position.

7. Adjust the top of the catch in and out. Adjust the top of the catch so that the door closes firmly.

8. Tighten the single catch bolt.

Door

FIGURE 4

1-6

Oven

BC14G

Adjust for small gap

FIGURE 5

Checking Door Adjustment

NOTE: When the door is adjusted properly, you

should be able to close a dollar bill beĆ tween the door and gasket on all four sides of the door and still be able to pull it out. If you cannot, the door is too tight, and must be readjusted.

1. Check the closing of the door in the steam mode.

FINE TUNING A DOOR GASKET

Use the following procedure if the door shuts well in both hot air and steam, but, you still have a little steam leaking from the door gasket:

1. Make a note where the steam is leaking.

2. Take a tube of silicone and lay a bead out on a flat surface. Let it dry.

3. Tack the bead behind the door gasket with a couple of dabs of silicone. This pushes the gasket out enough to seal the steam leak and does not over tighten the door.

OR:

1. If you look behind the gasket, it is held in place with a metal bar with screws. Change the screws behind the gasket where it is leaking to 10/24 round head screws. Use stainless screws and put NEVER SEAZE on the threads so they won't bind.

2. Next check the closing of the door when the oven is heated to 374_F.

3. The door should close easily in both condiĆ tions. If it does not, the door is too tight and must be readjusted.

1-7

CHAPTER 2

OPERATION AND

MAINTENANCE

BC14G AND BC14E

STANDARD CONTROLS

CONTROLS IDENTIFICATION

1. MODE SELECTOR SWITCH - turns power to the oven on or off. Allows selection of Steam, Hot Air, Combi or Cool Down Modes.

2. TEMPERATURE DIAL - used to set the cookĆ ing temperature in all modes. In the Steam mode, the temperature must be set to less than or equal to 212_F (100_C).

3. STEAM INJECTION TIMER - used to set the time for the steam injection cycle.

4. STEAM ON DEMAND SWITCH - used to iniĆ tiate steam injection cycle.

5. TIMER DIAL - used to set desired cook time.

6. FAN SPEED SWITCH - used to select low or high speed.

7. FLUSH/DRAIN SWITCH - used to flush/drain the steam generator for decalcification. The oven must be off and the steam generator must be below 160_F (71_C) for this switch to work.

8. FILL LAMP - illuminated until the steam genĆ erator is filled with water.

9. TEMP LIGHT - illuminated until the temperaĆ ture setting on the dial has been reached.

10. STEAM LAMP - illuminated when steam is being added to cooking process.

11. ON LIGHT - illuminated when the oven is turned on in any mode.

FIGURE 1

2-1

OPTIONAL MEAT PROBE

OPERATION AND MAINTENANCE

CONTROLS IDENTIFICATION

1. MEAT PROBE SWITCH - controls power to the meat probe.

2. MEAT PROBE CONTROL - use to set the deĆ sired probe temperature. Indicates the actual temperature of the product.

3. MEAT PROBE CONNECTOR - receptacle for the plug in meat probe.

NOTE: For sanitation purposes it is recomĆ

mended that the meat probe remain plugged into the front panel receptacle at all times.

OPERATION

Measuring the product core temperatures during long roasting periods is very practical. It is espeĆ cially important for products such as Roast Beef to reach a specific internal temperature.

Place the probe through to the middle of the prodĆ uct's thickest section. Be sure the probe does not touch any bone and the tip is not in a fat pocket. These conditions can cause inaccurate readings.

1. Set the MODE SELECTOR Switch to the deĆ sired function.

2. Turn the MEAT PROBE Switch (1) to ON.

3. To set the desired core temperature press and hold the * BUTTON (4) on the MEAT PROBE CONTROL (2).

Use the up arrow key (6) to increase the setĆ point temperature. Use the down arrow key (5) to decrease the setpoint temperature.

4. Set the TIMER to STAY ON. The cooking proĆ cess runs automatically.

When the selected core temperature is reached, the buzzer will sound and the apĆ pliance shuts off automatically.

The temperature and mode can by changed at any time during the process.

5. Shut the appliance off by setting all switches to

OFF.

NOTE: When setting the internal temperature, be

sure to allow for carryĆover cooking after the roast is removed from the oven.

4 5 6

FIGURE 2

2-2

BC14G AND BC14E

DELIMING

WARNING!!

Deliming solutions are hazardous and can cause burns to the skin and eyes. Wear protective clothing and eyewear when decalcifying your appliance.

Deliming of the steam generator is the single most imĆ portant preventative maintenance task. Lime will build up inside the steam generator, reducing efficiency and causing damage to the level control system.

WARNING!!

Problems caused by insufficient monthly deliming are not covered by the warranty.

WARNING!!

DO NOT actuate the deliming switch unĆ less the oven is in the OFF mode.

To decalcify your appliance:

1. Turn appliance to the STEAM mode until steam is produced.

10. Wait 1/2 to 1 hour.

11. Move the deliming switch to the RUN position. The appliance will automatically flush the steam generator for 90 seconds.

12. After the unit flushes for 90 seconds, clean the deliming pump and deliming port. Fill the deĆ liming reservoir to the SYSTEM FLUSH level with tap water.

13. Attach the deliming hose to the deliming port. Slowly pump in the tap water to flush the delimĆ ing connector and pump assembly.

14. Disconnect the deliming pump assembly from the unit.

15. Press and hold the Drain/Flush switch in the Flush position for 30 seconds.

Push Tab

to release

Deliming

Switch

View A

2. Turn the appliance OFF.

3. Move the deliming switch to the DELIME position.

4. The deliming chemical has a chart on the conĆ tainer for the chemical to total water volume raĆ tio. The total water volume for your unit is meaĆ sured in quarts and is listed next to your unit identification on the deliming pump.

Oven

Model

Total Water

Volume

Water and

Deliming Solution

BC14E 23 qrts 8 qrts

BC14G 13 qrts 4 qrts

5. Pour the proper amount of deliming chemical into the deliming pump reservoir.

6. Now add the proper amount of water into the deliming pump.

7. Attach the hose from the deliming pump to the deliming port.

8. Slowly pump the deliming solution and water mixture into the appliance.

See View A

Deliming

Solution

Reservoir

Deliming

Pump

Port

Hose

See

View A

9. Disconnect the pump hose from the appliance.

FIGURE 3

2-3

CHAPTER 3

BC14G

TROUBLESHOOTING

BC14G

BC14G TROUBLESHOOTING GUIDE

In the following troubleshooting guide, the scheĆ matic is broken down into areas. This allows the oven to be checked in sections.

When troubleshooting, slide the control panel out and use your volt meter. The main control circuit voltage for all Synergy ovens is 230 volts. Once the problem is determined, it is often easier to remove the slide out from the oven completely to change components. To remove the slide out, disconnect the hot air thermostat probe, ground wire, and large brown plug in connector.

NOTE: Always troubleshoot a Synergy oven 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.

NO OPERATION WITH THE MODE SWITCH IN COOL DOWN

1. Verify the deliming switch is in the on position.

2. Verify power is being supplied at the outlet.

3. 115V only - Check fuses in the small pullĆout fuse holder under the power plug in the rear of the oven. See FIGURE 1, location (A).

4. 115V only - Check the input and output of the stepĆup transformer located in the rear of the oven in the upper left hand corner. In order to acĆ cess the transformer you must remove the back panel. A good place to check the output voltage, before removing the back panel, is at the delimĆ ing switch on the left hand side of the oven.

5. Check the mode switch. See FIGURE 1.

6. Check the fan speed switch. See FIGURE 1 location (G).

7. Check the solid state speed control if the motor works in high speed and not low. See FIGURE 1, location (I).

8. Check the motor. See FIGURE 1, location (J).

NO OPERATION WITH THE MODE SWITCH IN HOT AIR

1. Check power at terminal 12 on mode switch, See FIGURE 1, location H. If no power, continĆ ue. If power is 208V, proceed to STEP 8.

2. Check F3 oven high limit. See FIGURE 1, locaĆ tion (B).

3. Check the mode switch. See FIGURE 1.

4. Check the S2 door switch. See FIGURE 1, location (D).

5. Check relay R5. See FIGURE 1, location (E).

6. Check timer S5. Turn the timer to ten minutes and continue. See FIGURE 1, location (E).

7. Check the mode switch. See FIGURE 1, locaĆ tion (H).

8. Check thermostat P5. See FIGURE 2, location (B).

9. Check that relay R205 contacts 9 and 1 are closed. See FIGURE 2, location (A).

10. If the hot air light is not lit on P5 check P5 temp controller for voltage. See FIGURE 2 location (B).

11. Check XFMR input and output voltage. See FIGURE 2.

12. Check hot air IGN1 terminal THS2 for voltage. See FIGURE 2 location (D).

13. Check hot air IGN2 terminal THS2 for voltage. See FIGURE 2 location (E).

NO OPERATION WITH THE MODE SWITCH IN STEAM

1. Check power at terminal 6 on the mode switch. See FIGURE 1, location (H). If no power, return to NO OPERATION WITH THE MODE SWITCH IN HOT AIR. Your problem is most likely a bad mode switch position. If power is 208V, proceed.

NOTE: The hot air is cycled on in the steam

mode to boost temperature.

2. If the steam logo by the mode switch is illumiĆ nated, jump to STEP 10.

3. If the low water light in the lower right hand corĆ ner of the control panel stays on, jump to NO FILLING OF STEAM GENERATOR.

4. If hot air light not lit on P5 check P5 temp conĆ troller for voltage. See FIGURE 3, location (B).

5. Check thermostat P5. See FIGURE 3, location (A).

6. Check that relay R205 contacts 9 to 5 are closed. Check coil and contacts for proper opĆ eration. See FIGURE 3, location (I).

7. Check F6 high limit. See FIGURE 3.

3-1

TROUBLESHOOTING

8. Check that R204 contacts 9 to 1 are closed. See FIGURE 3, location (E).

9. Check that R202 contacts 1 to 9 are closed. See FIGURE 3, location (F).

10. Check XFMR1 input and output power. See FIGURE 3, location (G).

11. Check THS2 ignition module 24VAC. See FIGURE 3, location (H). If no hot air boost in the steam mode, check T5.

12. Check that R205 contacts 10 to 6 are closed. See FIGURE 3, location (I).

13. Check input and output of T5 solid state timing relay. See FIGURE 3, location (J).

The rest of the ignition circuit for the HOT AIR boost was proven when you trouble shot the hot air mode.

NO FILLING OF STEAM GENERATOR

1. Verify water is on to Synergy oven and flowing through water restrictor.

2. Check mode switch positions 4, 10, and 22. See FIGURE 7, location (A).

3. Check input and output to fast LLC (Low Level Control) float. The LLC is the long float. See FIGURE 7, location (B).

4. Check relay R204, coil, input and output. See FIGURE 7.

5. Check fast fill solenoid. See FIGURE 7, locaĆ tion (D).

6. Verify hot water slow fill is operating. See FIGURE 7, locations (E) and (F).

NO OPERATION WITH THE MODE SWITCH IN COMBI

Most of this circuit has already been trouble shot by proving the HOT AIR and STEAM mode work.

1. Check T2 combi solid state timing relay input and output. See FIGURE 4, location (A).

NO ON DEMAND STEAM

Set time out and press ON DEMAND STEAM button.

1. Check S9 on demand steam button. See FIGURE 5, location (A).

2. Check input and output to T3 solid state timing relay. See FIGURE 5, location (B).

3. Check relay R202 coil and contacts. See FIGURE 5.

NO FLUSH / DRAIN MODE / MANUAL OR AUTO

The T4 flush/drain solid state timing relay is enerĆ gized when the P11 flush disable snapĆdisk is closed. Both of these parameters must be met for the manual flush/drain switch to work.

NOTE: When the P11 flush diable snapĆdisk is

closed the steam generator is below 160_F (71_C) and the oven is in the OFF position.

1. Check the deliming switch (S15) is in the off position. See FIGURE 6, location (A).

2. Check that P11 contact are closed. See FIGURE 6, location (B).

3. Check that relay R206 contacts are closed. See FIGURE 6.

4. Auto Flush/Drain ć Check T4 flush/drain solid state timing relay inputs and outputs. See FIGURE 6, location (H).

5. Manual Flush/Drain ć Check S12 flush/drain switch input and outputs. See FIGURE 6, locaĆ tion (D).

6. Check R203 relay coil and contacts. See FIGURE 6, location (E).

7. Check that R204 contacts are closed. See FIGURE 6, location (G).

8. Check flush/fill solenoid.

NO MEAT PROBE OPERATION

Synergy oven must be on and the timer set to the stay on position. The meat probe must also be plugged into the front control panel.

1. Check mode switch terminals 4, 10, and 22. See FIGURE 4, location (A).

2. Check S11 fuse. See FIGURE 4, location (J).

3. Check step down transformer XFMR inputs and outputs. See FIGURE 4, location (L).

4. Check inputs and outputs of meat probe conĆ troller. See FIGURE 6, location (M).

5. Check R5 relay coil and terminals. See FIGURE 4, location (O).

6. Check T1 buzzer, FIGURE 1.

3-2

BC14G

BC14G INCOMING POWER CHECK

Optional

120V Input power

Delime S15

Door

662_F

(350_C)

Switch

1 KVA Thermally protected

to 160_C

Mode Switch

F1 10A

Slow Blow

Steam

Hot air

Combi

Power on

10A

Slow Blow

Buzzer

5.6K

TIMER-S5

tm1

Mode Switch

Steam

11 12

Cool Down

Fan speed

Speed Control

Motor

FIGURE 1

3-3

Hot air

Steam

Combi

1 shot

BC14G HOT AIR FLOW CHART

TROUBLESHOOTING

Mode Switch

XFMR1

24VAC

Contacts

closed for heat

IG1

S1#12

R205

Temp

Controller

THS2

SPARK

IG1

FS1

FIGURE 2

3-4

SENSE4

PV1

MV3

Hot Air IGN1

Combination valve

FS1

THS2

SPARK

SENSE4

PV1

Hot Air IGN2

BC14G

BC14G STEAM FLOW CHART/WATER FILL

IG1

FS1

Combination

valve

Mode Switch

closed for steam

XFMR1

24VAC

Contacts

Steam

S1#8

R205

coil

THS2

SPARK

SENSE4

PV1

R205

R204

R202

demand on

Hot water fill

M/R Steam High limit

S1#6

Temp

Controller

XFMR1

24VAC

Contacts

closed for heat

IG1

FS1

Combination

valve

THS2

SPARK

SENSE4

PV1

MV3

Hot Air IGN1

R205

IG1

FS1

THS2

SPARK

SENSE4

PV1

Hot Air IGN2

FIGURE 3

3-5

BC14G COMBI FLOW CHART

TROUBLESHOOTING

Mode Switch

Combi

timer

25% Duty

Contacts open when

filling

R202

M/R Steam

High limit

S1#18

R204

S1#20

R205

Temp

Controller

Heat

FS1

IG1IG1

XFMR1

24VAC

THS2

SPARK

SENSE4

PV1

MV3

IG1

Steam

24VAC

IG1

FS1

Combination

valve

XFMR1

THS2

SPARK

SENSE4

PV1

MV3

Steam IGN1

Combination

FIGURE 4

3-6

FS1

IG1

valve

Hot Air IGN1

THS2

SPARK

SENSE4

mmmmm

PV1

MV3

Hot Air IGN2

BC14G

BC14G ON DEMAND STEAM FLOW CHART

Mode Switch

On demand

steam button

On demand

Timer

steam.

S1#20

R202

coil

S1#20

Contacts closed

Contacts

closed for steam

Steam

S1#12

R204

R202

M/R Steam High limit

XFMR1

24VAC

IG1

FS1

Combination valve

FIGURE 5

3-7

THS2

SPARK

SENSE4

PV1

BC14G FLUSH FLOW CHART

Optional

120V Input power

TROUBLESHOOTING

R206

Delime S15

P11 Flush disable

Open at 180_F (82_C) Close at 160_F (71_C)

10A

Slow Blow

Thermally protected

to 160_C

R206

1 KVA

10A

Slow Blow

S10

S22

S12 Flush Drain Switch

T4 T 90 sec

drain flush timer

F/D

R203

coil

R204

drain pump

Flush fill

FIGURE 6

3-8

BC14G

BC14G WATER FILL/MEAT PROBE/CONDENSATE/COOLING FAN

Open 140_F (60_C)

P4 quench

Close 167_F (75_C)

Cooling Fan

208V

24V

S11

Quench

F9 2 amp fuse

XFMR

S14

HLC

Hot Water

Slow Fill

S1#22S1#4 S1#10

S13

LLC

R204

875 6

FIGURE 7

3-9

Fast

Fill

BC14G DRAIN ASSEMBLY

ÏÏ

TROUBLESHOOTING

Drain

WATER

INPUT

All Drain is supplied

by customer

Vent

Hot

Air

Flue

MOTOR

COVER

TOP UNIT

DRAIN

Hot

Air

Flue

Hot Air Flue

EC/FAN

STEAM

FLUE

PWR

GAS

EC/FAN

WATER INPUT

MOTOR

COVER

BOTTOM UNIT

PWR

DRAIN

GAS

Drip pan drain

NOTE: Connection is not vented to drain.

FIGURE 8

3-10

BC14G

BC14G FLUE ASSEMBLY

WATER

INPUT

Hot Air

Flue

Hot Air Flue

MOTOR

COVER

TOP UNIT

DRAIN

Hot Air Flue

Hot Air

Flue

EC/FAN

STEAM

FLUE

PWR

GAS

EC/FAN

WATER

INPUT

MOTOR

COVER

BOTTOM UNIT

PWR

DRAIN

GAS

FIGURE 9

3-11

BC14G TIMER SETTINGS

TROUBLESHOOTING

TOP VIEW

SIDE

VIEW

Remove dial section

Dial

SIDE VIEW

meter

Inside if dial section

A) Top view of Timer.

NOTE: The L & R there are two timer adjustments per timer.

B) Side view of timer. C) Side view with dial section removed. Carefully remove dial section with a pair of pliers. D) Inside of the dial section there are two terminals. Use your meter on the ohms setting.

Turn the dial until to the desired ohms value. Reattach the dial section and test unit.

T2 Steam duty cycle In combi mode.

L) is 375K OHMS Steam ON 45 seconds.

R) is 666K OHMS Steam OFF 80 seconds.

T3 One shot steam

NOTE: Set by timer on front panel.

FIGURE 10

T4 Flush timer

L) Is 150K OHMS Flush ON 90 seconds.

T5 Hot air duty cycle. In steam mode.

L) is 375K OHMS Hot air ON 45 seconds

R) is 500K OHMS Hot air OFF 60 seconds

3-12

CHAPTER 4

BC14G SCHEMATICS

BC14G

FIGURE 1

4-1

BC14G FOR CE

SCHEMATICS

FIGURE 1

4-2

BC14G

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4-3

CHAPTER 5

PREĆSITE VISIT

QUESTIONS

BC14G AND BC14E

TROUBLESHOOTING SEQUENCE

ALWAYS troubleshoot a Synergy oven in the folĆ lowing sequence;

1. Cool Down

2. Hot Air

3. Steam

4. Combi

By following this sequence you bring in components gradually. DO NOT proceed to the next mode of opĆ eration until you have verified Cool Down works first. If possible, contact the customer before visiting the sight and have them check operation of the Synergy oven in each mode of operation. Suggested quesĆ tions are listed with each failure mode. Have a scheĆ matic in hand when asking questions. By asking the questions in the proper sequence you are slowly troubleshooting the circuit.

COOL DOWN MODE

NO operation with the mode switch in the COOL DOWN mode.

1. Is the oven plugged in?

2. Is the deliming switch on the left hand side of the oven in the ON" position?

HOT AIR MODE

NO operation with the mode switch in the HOT AIR mode.

1. Does the green power on light on the top right corner of the control panel come ON" or light up?

2. Turn the timer up to 10 minutes and then manually turn the timer down to the zero" position. Does the timer alarm BUZZ" or sound?

3. If you turn the thermostat knob up, does the red thermostat light to the right of the thermoĆ stat come ON" or light up?

(Gas Ovens Only)

4. Is the gas turned ON" in the rear of the oven and turned ON" in the slide panel in the lower left on the front of the oven?

5. Turn the mode switch to the OFF" position and then turn it back on to the HOT AIR" mode. Can you hear the oven sparking" or tickĆtickĆtick"?

3. Push the fan speed control switch. Does the convection motor come on?

5-1

COMPONENT IDENTIFICATION

STEAM MODE

NO operation with the mode switch in the STEAM mode.

1. Is the water on to the oven?

2. Is the fast fill light in the lower right hand corner of the front control panel ON"?

3. Does the green power on light on the top right corner of the control panel come ON" or light up?

4. Turn the timer up to 10 minutes and then manually turn the timer down to the zero" position. Does the timer alarm BUZZ" or sound?

5. If you turn the thermostat knob up, does the red thermostat light to the right of the thermoĆ stat come ON" or light up?

6. Is the steam symbol ON" or lit up above the STEAM" indicator by the mode switch?

7. Turn the steam on demand  timer to 5 minĆ utes and press the button next to the timer. Is the steam symbol ON" or lit up above the STEAM" indicator by the mode switch?

COMBI MODE

NO operation with the mode switch in the COMBI mode.

1. Does the green power on light on the top right corner of the control panel come ON" or light up?

2. Turn the timer up to 10 minutes and then manually turn the timer down to the zero" position. Does the timer alarm BUZZ" or sound?

3. If you turn the thermostat knob up, does the red thermostat light to the right of the thermoĆ stat come ON" or light up?

NOTE: If you have an operational problem in the

COMBI mode and all other modes work, the problem most likely is either the Solid State Timer T2 or the mode selector switch.

(Gas Ovens Only)

8. Turn the mode switch to the OFF" position and then turn it back on to the STEAM mode. Can you hear the oven sparking" or tickĆtickĆ tick"?

5-2

BC14G AND BC14E

This page intentionally left blank.

5-3

CHAPTER 6

COMPONENT

IDENTIFICATION

BC14G AND BC14E

COMPONENT IDENTIFICATION

The following is a key for the abbreviations of comĆ ponents on the schematic. Additional information is provided as to the function of the component to assist you in troubleshooting.

NOTE: Refer to the figures on pages 6-5 and

6-6 for component locations.

1. CF1 - Electrical compartment cooling fan.

2. CHĆ136 ć optional COOK & HOLD control for oven operation. Controller has two LCD disĆ plays and softĆkey push button control

3. CW - stands for COLD WATER only.

4. (ELECTRIC OVENS) - Elements (Hot Air) quantity (10), 1.5KW elements located in the cook Compartment.

5. (ELECTRIC OVENS) - Elements (Steam) quantity (6), 3.0KW elements located in the steam generator. Elements are in an assembly with 2 elements per assembly.

6. Flush/Fill (solenoid) - (no designation) indiĆ cates nonĆrestricted solenoid used for fast fillĆ ing and flushing of the steam generator.

7. (GAS OVENS) - F1 & F2 ć 12.5 amp control fuses

tion: Input 24Vac to THS2 & GND. SPARK outĆ puts to pilot assembly and sparks. PV1 outĆ puts to pilot valve & opens valve. SPARK output continues until flame sense is proved (.15 microamps is lockout / minimum you should see is .2 ). Lock out of modual is after 50 seconds if flame sense has not been proved. Once SENSE4 has proved, MV3 outĆ puts. MV3 is connected to IGN2 modual, termiĆ nal THS2. Ignition sequence continues for 2nd modual. MV3 supplies power to main valve on the combination valve. Burners light.

15. Hot Water Fill (solenoid) ć (no designation) The solenoid used for slow filling (fill line is reĆ stricted) the steam generator with water by the HLC reed float assembly.

16. H2 ć Low Water light. Low water light on the lower right hand corner of the control panel. It is only on when the Low Level Control (LLC) float switch is closed (steam generator is fast filling).

17. H4 ć Power On" light. indicates the oven has been turn on in the STEAM", HOTAIR", or COMBI" mode.

18. H5 ć duty light for temperature control board.

8. (ELECTRIC OVENS) - F1 & F2 ć 5 amp slow blow control fuses

9. F3 - Cooking Compartment High Limit TherĆ mostat. Capillary type thermostat with the sensing bulb located in the cooking compartĆ ment. Opens at 662_F or 350_C disabling the control circuit.

10. (ELECTRIC OVENS) - F3Ć5A ć ( 5 amp fuse on secondary of step down transformer of 480v electric Synergy ovens

11. (ELECTRIC OVENS) - F3Ć60A, F4Ć60A, F5Ć60A, & F6Ć60A ć 60amp fusing for the Hot Air & Steam elements in a BC14E Synergy Electric singleĆphase oven

12. F6 ć Boiler High Limit thermostat. Capillary, manual reset, steam generator high limit. Opens at 257_F or 125_C.

13. F9 ć 350ma meat probe fuse

14. (GAS OVENS) - Hot Air IGN1, IGN2 ć Hot Air Ignition Control Modual. Sequence of operaĆ

19. H6 ć Steam Duty light. When lit, indicates powĆ er is being supplied to the steam ignition cirĆ cuit.

20. HLC ć High Level Control. Float switch (reed switch) in the float assembly which does the norĆ mal operation water fill to the steam generator (this is the shorter float in the float assembly)

21. (ELECTRIC OVENS) - K2 (A & B Primary) ć Solid State Hot Air Relays (SSRs). (2) 45 amp solid state relays for hot air. K2A is deactivated in Combi mode if Steam circuit is calling for heat.

22. (ELECTRIC OVENS) - K3 (A & B Primary) ć Solid State Steam Relays (SSRs) (2) 45 amp solid state relays for steam. K2A is deactivated in Combi mode if the thermostat is calling for heat.

23. LLC ć Low Level Control. Float switch (reed switch) in the float assembly which fast fills the steam generator (this is the longer float in the float assembly).

6-1

COMPONENT IDENTIFICATION

24. M ć Convection motor. 1/2 hp , 208V / 115V convection motor. Has an internal selfĆresetĆ ting thermal overload at 250_F.

25. Meat Probe (no designation) ć J" type therĆ mocouple meat probe which plugs into front of the oven.

26. Meat Probe Controller (optional) ć shuts off the oven and sounds the buzzer when set temĆ perature has been reached.

27. (ELECTRIC OVENS) - Noise Filter ć noise filĆ ter in control circuit.

28. Pump - pump used for removing water from the steam generator when deliming and when selfĆflushing.

29. (GAS OVENS) - PV , PV1 , PV2 ć pilot valves. PV is the pilot valve on the main combination valve used for steam. PV1 is the single coil pilot valve used for hot air. PV2 is the pilot valve on the main combination gas valve used for hot air.

30. P4 ć Quench snapĆdisk. SnapĆdisk located near the rear of the drain pipe to supply power to the quench solenoid. Closes at 167_F or 75_C. Opens at 140_F or 60_C.

31. P5 ć Temperature Control Board. Power in is on terminals C & L1. Terminals COM & NO close until desired set temperature is reached in all modes of operation.

32. P11 ć Flush Disable snapĆdisk. SnapĆdisk loĆ cated on the steam generator used to energize the T4 Flush Solid State Timer. Closes at 160_F or 71_C. Opens at 180_F or 82_C.

37. Resister (designated as 5.6Ka") - Resister in series with the buzzer to drop voltage to the buzzer to allow for long periods of operation.

38. R5 ć Meat probe relay

D Coil is terminals 1 & 5. Coil is energized by

the meat probe control terminal 6.

D Coil energized. Terminals 4 to 3 close, enĆ

ergizing the buzzer.

D Coil not energized. Terminals 4 to 2 closed,

power to timer, S5, terminal 4.

39. (ELECTRIC OVENS) - R200 ć Hot Air Relay coil is terminals 13 & 14 / coil is energiized when oven is in Hot Air" or Combi" and P5 thermostat is calling for heat. Terminals 10 to 6 close, energizing K2ĆB.

40. (ELECTRIC OVENS) - R201 ć Load Splitting Relay

D Coil is terminals 13 &14. Coil is energized

by R204 terminal 1 when steamgenerator is full

D Coil energized. Terminals 9 to 5 close,

power is supplied to F6, then the steam contactors. Terminals 10 to 2 open, no power to K2ĆA Hot Air contactor.

D coil not energized. Terminals 9 to 5 are

open, no power to F6 (no power to steam contactors). Terminals 10 to 2 are closed, supplies power to K2ĆA Hot Air contactor.

41. (GAS OVENS) - R202 ć On demand steam relay

33. (ELECTRIC OVENS) - P12 ć Cold Plate Water Flow Snap Disk snap disk located on the Solid State Relay Cold Plate assembly, opens at 95_F or 35_C.Closes at 122_ F or 50_C. ProĆ vides normal cooling of cold plate assembly.

34. (ELECTRIC OVENS) - P13 ć Cold Plate NO water FailĆsafe Snap Disk snap disk located on the Solid State Relay Cold Plate assembly, opens at 176_F or 80_C and shuts down the oven / closes at 149_F or 65_C.

35. (GAS OVENS) - Quench - Cold water drain quench solenoid. Coil resistance is approxiĆ mately 1830 ohms.

36. (ELECTRIC OVENS) - Quench - Cold water drain quench solenoid. Coil resistance is approximately 1830 ohms. Water supply also for the SSR cold plate assembly.

D Coil is terminals 13 & 14. Coil is energized

by One shot Steam timer, T3 terminal 2.

D Coil energized terminals 9 to 5 close. This

byĆpasses the temperature thermostat and provides power to F6 Boiler High Limit thermostat.

D Coil not energized terminals 9 to 1 closed,

normal operation, provides power to F6 Boiler High limit thermostat.

6-2

BC14G AND BC14E

42. (ELECTRIC OVENS) - R202 ć On demand steam relay

D Coil is terminals 13 & 14. Coil is energized

by One shot Steam timer, T3 terminal 2.

D Coil energized terminals 9 to 5 close / proĆ

vides power to R204 relay terminal 9 (powĆ er is byĆpassed the temperature thermoĆ stat).

D Coil not energied terminals 9 to 1 closed,

normal operation, provides power to P5 Hot Air Thermostat.

43. 203 ć Flush / Drain Relay.

D Coil is terminals 13 & 14. Coil is energized

by Flush Timer terminal 1.

D Coil energized. Terminals 9 to 5 close.

Power provided to Fast Fill solenoid. TermiĆ nals 10 to 6 close. Power provided to pump.

D Coil not energized. Terminals 9 to 5 open.

Terminals 10 to 6 open. Normal operation, auto flush/drain operation disabled.

44. (GAS OVENS) - R204 - Water Fill Relay / Fast low water fill

D Coil is terminals 13 & 14. Coil is energized by

Low Level Control, LLC, water level float reed switch

D Coil energized. Terminals 10 to 6 close.

Provides power to fast fill solenoid. TermiĆ nals 3 to 11 open. Prevents power being supplied to R203 relay, terminal 9

D Coil not energized. Terminals 10 to 2

closed, normal operation, provides power to R202 terminal 5

45. (ELECTRIC OVENS) - R204 - Water Fill Relay / Fast low water fill

D Coil is terminals 13 & 14. Coil is energized by

Low Level Control, LLC, water level float reed switch

D Coil energized. Terminals 10 to 6 close.

Provides power to fast fill solenoid. TermiĆ nals 3 to 11 open. Prevents power being supplied to R203 relay, terminal 9

D Coil not energized. Terminals 10 to 6 are

open (no power to fast fill solenoid) / termiĆ nals 9 to 1 are close, power provided to R201 relay terminals 13 and 9.

46. (GAS OVENS) - R205 - Steam Override Relay

D Coil is terminals 13 &14. Coil is energized

by S1 Mode switch terminal 8 when turned to the Steam Mode.

D Coil energized terminals 10 to 6 close, supĆ

plies power to T5 Hot Air Duty Cycle SST. Terminals 9 to 5 close, supplies power to R204 terminal 9.

D Coil not energized terminals 9 to 1 closed,

supplies power to XFMR2 Step Down TransĆ former for the hot air ignition moduals.

47. (ELECTRIC OVENS) - R205 - Steam OverĆ ride Relay

D Coil is terminals 13 &14. Coil is energized

by S1 Mode switch terminal 8 when turned to the Steam Mode.

D Coil energized terminals 10 to 6 close, supĆ

plies power to T5 Hot Air Duty Cycle SST. Terminals 9 to 5 close, supplies power to R204 terminal 9.

D coil not energized terminals 9 to 1 closed,

supplies power to XFMR2 Step Down Transformer for the hot air ignition moduĆ als.

48. R206 - Drain / Flush Disable relay

D Coil is terminals 7 & 8. Coil is energized

when oven is turned on.

D Coil energized. Terminals 2 to 6 opens. AlĆ

lows no power to Flush Timer, T4, terminal

D Coil not energized. Terminals 2 to 6 are

closed and allows power to be applied to Flush Timer, T4, initiating 90 second flush / drain cycle

49. S1 ć Mode Selector Switch. Used to select opĆ eration mode; CD" is the Cool Down contacts, S" are steam contacts, H" are Hot Air conĆ tacts, C" are the Combi contacts.

50. S2 ć Proximity Door Switch.

51. S5 ć Timer. Power in is on terminals 6 & 7. TermiĆ nals 4 to 6 are closed when the timer is set for continuous on" or set out to a specific time. When timed out, terminals 4 to 5 close, energizĆ ing the T1 buzzer.

6-3

COMPONENT IDENTIFICATION

52. S9 ć One Shot Steam Button. Pressing the butĆ ton in any mode applies power to terminal 2 of T3 One Shot Steam Solid State Timer and initiĆ ates the steam circuit for the set time.

53. S10 ć Fan Speed Switch

D High speed, terminals 24 to 26 are closed

applying power to convection motor.

D Low Speed, terminals 24 to 25 are closed

applying power to Solid State Motor Speed Control.

54. S11 ć Meat Probe Switch. terminals 11 to 12 close supplying power to XFMR 208V to 24V step down transformer for the meat probe.

55. S12 ć Flush / Drain Switch

D In order to work, the oven must be in the

OFF" position and the steam generator must be below 160_F or 71_C.

D Flush - terminals 24 to 25 close supplying

power to R203 Flush / Drain Solid State timer.

D Drain - terminals 24 to 26 close supplying

power to the pump.

56. S15 ć Deliming switch. SPST switch used for deliming.OFF postion is for deliming. ON for normal operation.

57. Speed Control - Solid state motor speed conĆ troller, drops the motor rpm to approximately 900 rpm.

58. (GAS OVENS) - Steam IGN1 ć Steam Ignition Control Modual. Sequence of operation: input 24Vac to THS2 & GND. SPARK outputs to pilot assembly & sparks. PV1 outputs to pilot valve & opens valve. SPARK output continues until flame sense is proved (.15 microamps is lockĆ out / minimum you should see is .2 ). Lock out of modual is after 50 seconds if flame sense has not been proved. Once SENSE4 has proved, MV3 outputs. MV3 supplies power to main valve on the combination valve and burnĆ ers light.

59. (GAS OVENS) - Transformer (designated as 120V /240V 1 KVA THERMALLY PROTECTED to 160_C) ć step up transformer the control cirĆ cuit for gas ovens with 120Vac input.

60. (ELECTRIC OVENS) - Transformer (desigĆ nated as 480V / 240V 150VA") ć step down transformer for 480V electric ovens only (transĆ former is located under oven cavity).

61. T1 - Buzzer

62. T2 - Steam Duty Cycle Timer

D Power in on terminals 2 & 3. Output on termiĆ

nal 1

D Used to provided power to the steam circuit

in the Combi mode. Power supplied to termiĆ nal 2, terminal 1 on for 45 seconds and off for 80 seconds.

63. T3 ć One Shot Steam Solid StateTimer

D Power in on terminals 1 & 3. Terminal 6 is

a trigger which initialize timer output on terĆ minal 2. Resistance setting on terminals 4 to 5 determine stay on time.

D When steam injection button is pressed,

power to terminal 6 initiates power out of terminal 2 for set time. Steam circuit enerĆ gized for set time.

64. T4 ć Flush Solid State Timing relay. Power in is on terminals 2 & 3. Output is to terminal 1 for 90 seconds. This energizes R203 which allows the pump and fill solenoid to come on.

65. (GAS OVENS) - T5 ć Hot Air Duty Cycle Solid State Timer. Power in is on terminals 2 & 3. OutĆ put is to terminal 1 for 45 seconds on and 60 seconds off. When terminal 1 is on, power is supplied to the Hot air circuit to boost the Steam mode.

66. (GAS OVENS) - XFMR1 ć Step Down transĆ former 208Vac / 240Vac to 24Vac. Supplies 24Vac to the steam ignition modual.

67. (GAS OVENS) - XFMR2 ć Step Down transĆ former 208Vac / 240Vac to 24Vac. Supplies 24Vac to the hot air ignition modual.

68. XSFMR ć Step Down transformer 230Vac to 24Vac. Supplies 24Vac to optional meat probe controller.

6-4

BC14G AND BC14E

COMPONENT LOCATION DIAGRAMS

DRAIN

BC14G COMPONENT LOCATIONS

REAR VIEW

FIGURE 1

6-5

COMPONENT IDENTIFICATION

REAR VIEW

DRAIN

BC14E COMPONENT LOCATIONS

FIGURE 2

On Bottom Tray

33 34

6-6

CHAPTER 7

BC14E SCHEMATICS

BC14E

FIGURE 1

7-1

BC14E FOR CE

TROUBLESHOOTING

FIGURE 1

7-2

CHAPTER 8

BC14E

TROUBLESHOOTING

BC14E

BC14E TROUBLESHOOTING GUIDE

In the following troubleshooting guide, the scheĆ matic is broken down into areas. This allows the oven to be checked in sections.

NOTE: Always troubleshoot a Synergy oven in the

following sequence: COOL DOWN, HOT AIR, STEAM, and then COMBI. Reference the text that follows with the appropriate schematic to help troubleshoot each mode.

NO OPERATION WITH THE MODE SWITCH IN COOL DOWN

1. Verify the deliming switch is in the on position.

2. Verify the water to the oven is turned on.

3. Verify power is being supplied at the outlet.

4. Check the fuses in the panel underneath the control panel. See FIGURE 1, location (A).

5. Single phase ovens - Remove the front drip pan and check the 60 amp fuses located under the oven. See FIGURE 1, location (A).

2. Check the F3 oven high limit. See FIGURE 1, location (B).

3. Check the mode switch. See FIGURE 1.

4. Check the S2 door switch. See FIGURE 1, location (D).

5. Check relay R5. See FIGURE 1, location (E).

6. Check timer S5. Turn timer to ten minutes and continue. See FIGURE 1, location (E).

7. Check the mode switch. See FIGURE 1, locaĆ tion (H).

8. Check R202 relay. See FIGURE 2, location (B).

9. If the hot air light is not lit on P5, check the P5 temp controller for voltage. See FIGURE 2 location (B).

10. Check that relay R205 contacts 9 and 1 are closed. See FIGURE 2, location (C).

11. Check R201 relay contacts. See FIGURE 2, location (E).

12. Check solid state contactor K2ĆA, is the red LED on? See FIGURE 2, location (F).

13. Check R200 relay, coil and contacts. See FIGURE 2, location (D).

14. Check solid state contactor K2ĆB, is red LED on? See FIGURE 2, location (F).

6. Check the noise filter input and output. See FIGURE 1, location (A).

7. Check the P13 snap disk. See FIGURE 1, locaĆ tion (B).

8. Check the mode switch. See FIGURE 1.

9. Check the fan speed switch. See FIGURE 1, location (G).

10. If the motor works in high speed and not low, check the solid state speed control. See FIGURE 1, location (I).

11. Check the motor. See FIGURE 1, location (J).

NO OPERATION WITH THE MODE SWITCH IN HOT AIR

1. Check power at terminal 12 on the mode switch. See FIGURE 1, location (H). If there is no power, continue. If the power is 208V, proĆ ceed to STEP 8. See FIGURE 2, location (B).

NO OPERATION WITH THE MODE SWITCH IN STEAM

1. Check power at terminal 6 on the mode switch. See FIGURE 1, location (H). If there is no powĆ er, return to NO OPERATION WITH THE MODE SWITCH IN HOT AIR. Your problem is most likeĆ ly a bad mode switch position. If power is 230V proceed.

2. If the steam logo by the mode switch is illumiĆ nated, jump to STEP 9.

3. If the LOW WATER light in the lower right hand corner of the control panel stays on, jump to NO FILLING OF STEAM GENERATOR.

4. Check that R202 relay contacts close. See FIGURE 3, location (B).

5. If the hot air light is not lit (H5) on P5, check P5 temp controller for voltage. See FIGURE 3, location (B).

8-1

TROUBLESHOOTING

6. Check that relay R205 contacts 9 to 5 are closed. Check coil and contacts for proper opĆ eration. See FIGURE 3, location (C).

7. Check F6 high limit. See FIGURE 3, location (F).

8. Check that R204 contacts 9 to 1 are closed. See FIGURE 3, location (E).

9. Check Solid State Contactor K3ĆB, is red LED on? See FIGURE 3, location (H).

10. Check R200 contacts 9 to 1 are closed. See FIGURE 3, location (H).

11. Check Solid State Contactor K3ĆA, is red LED on? See FIGURE 3, location (H).

NO FILLING OF STEAM GENERATOR

1. Verify water is on to Synergy oven and flowing through water restrictor.

2. Check mode switch positions 4, 10, and 22. See FIGURE 7, location (A).

3. Check input and output to fast LLC (Low Level Control) float. The LLC is the long float. See FIGURE 7, location (B).

4. Check relay R204, coil, input and output. See FIGURE 7.

5. Check fast fill solenoid. See FIGURE 7, locaĆ tion (D).

NO FLUSH / DRAIN MODE / MANUAL OR AUTO

The T4 flush/drain solid state timing relay is enerĆ gized when the P11 flush disable snapĆdisk is closed. Both of these parameters must be met for the manual flush/drain switch to work.

NOTE: When the P11 flush diable snapĆdisk is

closed the steam generator is below 160_F (71_C) and the oven is in the OFF position.

1. Check that the deliming switch (S15) is in the off position. See FIGURE 6, location (A).

2. Check that the P11 contact is closed. See FIGURE 6, location (B).

3. Check that relay R206 contacts are closed. See FIGURE 6.

4. Auto Flush/Drain ć Check T4 flush/drain solid state timing relay inputs and outputs. See FIGURE 6, location (H).

5. Manual Flush/Drain ć Check S12 flush/drain switch input and outputs. See FIGURE 6, locaĆ tion (D).

6. Check R203 relay coil and contacts. See FIGURE 6, location (E).

7. Check that R204 contacts are closed. See FIGURE 6, location (G).

8. Check flush/fill solenoid.

6. Verify hot water slow fill is operating. See FIGURE 7, locations (E) and (F).

NO OPERATION WITH THE MODE SWITCH IN COMBI

Most of this circuit has already been trouble shot by proving the HOT AIR and STEAM mode work.

1. Check T2 combi solid state timing relay input and output. See FIGURE 4, location (A).

NO ON DEMAND STEAM

Set time out and press ON DEMAND STEAM button.

2. Check S9 on demand steam button. See FIGURE 5, location (A).

3. Check input and output to T3 solid state timing relay. See FIGURE 5, location (B).

4. Check relay R202 coil and contacts. See FIGURE 5.

NO MEAT PROBE OPERATION

The Synergy oven must be on and the timer set to the stay on position. The meat probe must also be plugged into the front control panel.

1. Check mode switch, terminals 4, 10, and 22. See FIGURE 7, location (A).

2. Check S11 fuse. See FIGURE 7, location (J).

3. Check step down transformer XFMR inputs and outputs. See FIGURE 7, location (L).

4. Check inputs and outputs of meat probe conĆ troller. See FIGURE 9, location (M).

5. Check R5 relay coil and terminals. See FIGURE 7, location (O).

6. Check T1 buzzer, FIGURE 4.

8-2

BC14E

BC14E SAFETY LIMITS FLOW CHART

Noise Filter

P13

Open at 176_F (80_C) Close at 149_F (65_C)

Delime

S15

662_F (350_C)

Door

Switch

Mode Switch

Combi

team

Hot air

Cool

Down

Fan speed

Power on

Speed Control

Motor

Buzzer

5.6K

-7

TIMER-S5

tm1

Mode Switch

Steam

11 12

Hot air

Steam

Combi

1 shot

FIGURE 1

8-3

BC14E HOT AIR FLOW CHART

TROUBLESHOOTING

Mode Switch

Contacts

closed for heat

Contacts

closed for heat

S1#12

R202

R205

Temp

Controller

Contacts

Closed for hot air

R201

Hot air contactor

FIGURE 2

8-4

R200

K2-BK2-A

Hot air contactor

Primary

R200

coil

Hot air relay

BC14E

BC14E STEAM FLOW CHART

Mode Switch

S1#8

R205

coil

Contacts

closed for steam

Split load

in combi mode

R201

coil

R202

R205

R204

S1#6

Temp

Controller

closed for steam

Contacts

closed for steam

Contacts

Steam contactor

Steam

R200

K3-A

FIGURE 3

R201

Steam contactor

Steam High Limit

K3-B

Primary

8-5

BC14E COMBI FLOW CHART

TROUBLESHOOTING

Mode Switch

Combi

timer

25% Duty

Contacts open when

filling

Contacts

Closed in combi

S1#18

R204

R201

when steam on

in combi mode

Split load

R201

coil

R202

R205

R201

S1#20

Temp

Controller

Heat

Steam

R200

K3-A

Steam contactor

M/R Steam

High limit

K3-B

Primary

Steam contactor

Contacts

closed for steam

K2-A

Hot air contactor

FIGURE 4

R200

coil

R200

K2-B

Hot air contactor

Primary

8-6

BC14E

BC14E ON DEMAND FLOW CHART

Mode Switch

On demand

steam button

Timer

S1#20

R202

coil

On demand

steam.

S1#20

Contacts

closed for steam

Split load

in combi mode

R201

coil

S1#12

R202

R204

S1#6

Contacts

closed for steam

Steam

R200

K3-A

Steam contactor

FIGURE 5

8-7

9 R201

M/R Steam High limit

K3-B

Steam contactor

Primary

BC14E FLUSH FLOW CHART

TROUBLESHOOTING

P13

Open at 176_F (80_C) Close at 149_F (65_C)

Delime S15

P11

Flush disable Open at 180_F (82_C) Close at 160_F (71_C)

S10

S22

R206

Flush Drain switch

90 sec

drain flush timer

S12

F/D

R206

drain pump

FIGURE 6

R203

R204

Flush fill

coil

8-8

BC14E

BC14E WATER FILL/MEAT PROBE

Open 140_F (60_C)

P4 quench

Close 167_F (75_C)

Cooling Fan

208V

24V

S11

Quench

F9 2 amp fuse

P12 cold plate Open 95_F (35_C) Close 122_F (50_C)

S14

HLC

Hot Water

Slow Fill

S13

LLC

S1#22S1#4 S1#10

R204

S1#8

R204

875 6

Fast

Fill

FIGURE 7

8-9

BC14E DRAIN ASSEMBLY

ÎÎ

Drain

Vent

WATER

INPUT

TROUBLESHOOTING

EC/FAN

MOTOR

COVER

TOP UNIT

WATER INPUT

DRAIN

All Drain is supplied by customer

MOTOR

COVER

BOTTOM UNIT

DRAIN

PWR

EC/FAN

PWR

Drip pan drain

NOTE: Connection is not vented to drain.

FIGURE 8

8-10

BC14E

BC14E TIMER SETTINGS

TOP VIEW

SIDE

VIEW

Remove dial section

Dial

meter

SIDE

VIEW

A) Top view of Timer.

NOTE: The L & R there are two timer adjustments per timer.

Turn the dial until to the desired ohms value. Reattach the dial section and test unit.

Inside if dial section

T2 Steam duty cycle In combi mode.

L) is 375K OHMS Steam ON 45 seconds.

R) is 666K OHMS Steam OFF 80 seconds.

FIGURE 9

T3 One shot steam

NOTE: Set by timer on front panel.

T4 Flush timer.

L) Is 150K OHMS Flush ON 90 seconds.

8-11

This page intentionally left blank.

TROUBLESHOOTING

8-12

CHAPTER 9

BC14E INSTALLATION

BC14E

INSTALLATION SPECIFICATIONS

NOTE: Electrical and water connections must be

performed by a qualified installer only.

MAXIMUM SHELF LOADING

BC14E 100 lbs (45.5 Kg)

TABLE 1

PLUMBING SPECIFICATIONS - BC14E/AA

Water

Water Pressure 30 PSI (207 kPa) minimum

50 PSI (345 kPa) maximum

Water Connection 3/4" Hose Hot and Cold Water

Water Regulator Setting Preset to 20 PSI (138 kPa)

Drainage Atmospheric Vented Drain

Drain Connection 2.00" (50.8mm) Copper

Avg Water Drain Temp. Approximately 160_F (71_C)

TABLE 2

PLUMBING SPECIFICATIONS - BC14EDS/AA

Water

Water Pressure 30 PSI (207 kPa) minimum

50 PSI (345 kPa) maximum

Water Connection 3/4" Hose Cold Water

Water Regulator Setting Preset to 20 PSI (138 kPa)

Drainage Atmospheric Vented Drain

Drain Connection 2.00" (50.8mm) Copper

Avg Water Drain Temp. Approximately 160_F (71_C)

NOTE: For steam requirements see page 9-4 STEAM CONNECTION for the BC14EDS

TABLE 3

9-1

INSTALLATION

RATINGS - ELECTRIC APPLIANCES - BC14E/AA and BC14EDS/AA

Voltage Hz Phase

Max Load (amps)

Motor

L1 L2 L3

208 60 1 89 89 - 1/2HP 208Ć240VAC, 50/60 Hz

208 60 3 52 52 52 1/2HP 208Ć240VAC, 50/60 Hz

240 60 1 82 82 - 1/2HP 208Ć240VAC, 50/60 Hz

240 60 3 47 47 47 1/2HP 208Ć240VAC, 50/60 Hz

480 60 3 23 23 23 1/2HP 208Ć240VAC, 50/60 Hz

380/220 50 3 25 25 25 1/2HP 208Ć240VAC, 50/60 Hz

415/240 50 3 27 27 27 1/2HP 208Ć240VAC, 50/60 Hz

400/230 50 3 26 26 26 1/2HP 208Ć240VAC, 50/60 Hz

TABLE 4

OVEN LOCATION AND LEVELING

OVEN LOCATION

The well planned and proper placement of your oven will result in long term operator convenience and satisfactory performance.

Certain minimum clearances must be maintained between the oven and any combustible or nonĆ combustible construction. See the table below.

In addition, the following clearances are recomĆ mended for servicing.

OVEN LEVELING

This oven should be set up in place.

With any stand or oven, be certain that the surface is level, even and solid. A sloped or uneven base may cause the appliance to function improperly. Minor unevenness can be corrected by adjusting the metal leg feet. The maximum adjustment of the leg feet is 1Ć3/8" (35mm).

D Oven body sides - 12" (30cm)

D Oven body back - 12" (30cm)

Left Side Heat Shield

Heat sources should not be near the air vents loĆ cated on the left hand side of the gas appliance. Consult the factory for optional protective side heat shield.

BC14E P/N R9527

MINIMUM REQUIRED

Oven

CLEARANCES

Model

Right Side Left Side Back

BC14E 1"

(25.4mm)4"(101.6mm)6"(152.4mm)

Maximum

Adjustment

1Ć3/8" (35mm)

Leg

Foot

FIGURE 1

9-2

BC14E

STACKING

WARNING!!

Stacking should be performed by qualiĆ fied installation personnel only. The apĆ pliances are heavy. Take care to use propĆ er tools and techniques when lifting and stacking appliances.

1. Remove the drip pan from the top appliance.

2. Attach the legs or casters to the bottom apĆ pliance.

3. Place the top appliance on the bottom apĆ pliance. Be sure all four sides are flush.

4. Bolt the two appliances together using the bolts provided.

5. Replace the drip pan.

6. Connect the drain, electrical and water. Refer to page 9-4.

BC14G Shown

FIGURE 2

9-3

Drip Pan

PLUMBING CONNECTIONS

INSTALLATION

WATER CONNECTION

Connect the appliance to quality water via a presĆ sure hose with 3/4" (19mm) couplings. See FIGURE 3 for connections. A shut off valve is to be provided adjacent to the oven.

WARNING!!

Operating the appliance without the water regulator installed will invalidate your warĆ ranty.

Water must meet the following minimum requireĆ ments:

D Total Dissolved Solids (TDS) content will not

exceed 30 parts per million.

D Water PH must be 7.0 or higher

WARNING!!

The use of poor quality water will invaliĆ date your warranty.

Cold Water

DRAIN CONNECTION

The steam vent assemblies are constructed of 2" DWV copper piping reduced to 1Ć1/2 DWV pipe. If the vent system is not purchased as an option (R9381), Blodgett Combi recommends plumbing the oven as shown in FIGURE 4.

The steam vent should be run to an open floor drain avoiding flexible hose that could sag and alĆ low trapped water to accumulate. The customer must supply the piping from the oven to the drain.

Connect the drip pan drain to the steam vent with

1.125 I.D. hose.

Use the drain vent assembly and a 2" (50.8mm) pipe for drain connection.

Coupling

Customer supplied 2" (50.8mm) drain waste vent piping

BC14E

Water Connections

Rear of Appliance

FIGURE 3

STEAM CONNECTION FOR BC14EDS

FIGURE 4

Specific water/drain connection for City of Los Angeles

1. Each drain line from the appliance shall be routed without dips or sags to terminate above the flood level rim of an approved indirect waste receptor.

2. The appliance shall be installed in accordance with the manufacturer's printed instructions and the LAPC and LAMC, 1999 editions.

3. A backflow protection device shall be installed on the potable water system directly ahead of the appliance. The backflow protection device shall be any of the following: an approved presĆ sure type vacuum breaker installed at least 12" above the highest point of use, a double check valve backflow preventer or a reduced presĆ sure principal backflow preventer.

9-4

BC14E

DOOR ADJUSTMENTS

NOTE: When making door adjustments, always

adjust the hinge side first.

Adjusting the Hinges

NOTE: If you need to adjust the hinges, always adĆ

just the top hinge first.

NOTE: The hinges on the door have no adjustment,

you can only adjust the hinge on the oven.

1. Adjust the top hinge as follows:

A.) Loosen the three allen head bolts on the

top hinge attached to the oven.

B.) Tap the hinge in or out as needed. Keep the

hinges parallel as shown in FIGURE 5C.

C.) Tighten the three allen head bolts

2. Adjust the bottom hinge as follows:

A.) You must remove the weight of the door

from the bottom hinge to adjust it. To reĆ move the weight from the hinge, slide a screwdriver head into the gap where the two top hinges touch and pivot. Lift up the door slightly.

A.) Loosen the three allen head bolts on the

bottom hinge attached to the oven.

B.) Tap the hinge in or out as needed. Keep the

hinges parallel as shown in FIGURE 5C.

C.) Tighten the three allen head bolts

D.) Remove the screwdriver to lower the door.

Adjusting the Catch

Adjust the catch as follows:

1. In the top of the door handle is a round roller. Swing the door until the door handle is close to the catch on the oven.

2. Loosen the two bolts holding the latch to the face of the appliance.

3. Adjust the catch from side to side until the head of the catch is centered with the roller.

5. Tighten the two bolts that hold the catch in place.

6. For easy alignment, swing the door close to the catch. Use a felt tipped marker on the door handle to mark the catch position.

7. Adjust the top of the catch in and out. Adjust the top of the catch so that the door closes firmly.

8. Tighten the single catch bolt.

Door

FIGURE 5

9-5

Oven

Adjust for small gap

FIGURE 6

Checking Door Adjustment

NOTE: When the door is adjusted properly, you

should be able to close a dollar bill beĆ tween the door and gasket on all four sides of the door and still be able to pull it out. If you cannot, the door is too tight, and must be readjusted.

1. Check the closing of the door in the steam mode.

INSTALLATION

FINE TUNING A DOOR GASKET

Use the following procedure if the door shuts well in both hot air and steam, but, you still have a little steam leaking from the door gasket:

1. Make a note where the steam is leaking.

2. Take a tube of silicone and lay a bead out on a flat surface. Let it dry.

3. Tack the bead behind the door gasket with a couple of dabs of silicone. This pushes the gasket out enough to seal the steam leak and does not over tighten the door.

OR:

2. Next check the closing of the door when the oven is heated to 374_F.

3. The door should close easily in both condiĆ tions. If it does not, the door is too tight and must be readjusted.

9-6

Blodgett BC-14E Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual