BC14E AND BC14G COMBINATION OVEN STEAMER SERVICE AND REPAIR MANUAL BLODGETT COMBI www.blodgett.
TABLE OF CONTENTS Section 1 BC14G Installation Installation Specifications/Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oven Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plumbing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS Section 8 BC14E Troubleshooting BC14E Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BC14E Safety Limits Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BC14E Hot Air Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BC14E Steam Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 conform to all local and national installation standards. A hood system is required with the BC14G. MAXIMUM SHELF LOADING BC14G 100 lbs (45.
INSTALLATION RATINGS -- GAS APPLIANCES -- BC14G/AA Gas Type Gas Input Voltage Phase Amps Motor Natural Steam --- 55,000 BTU/Hr Hot Air --- 65,000 65 000 BTU/Hr Total --- 115,000 BTU/Hr 208-240 1 15 1/2HP 208-240VAC, 50/60 Hz 120 1 15 1/2HP 208-240VAC, 50/60 Hz Steam --- 48,000 BTU/Hr Hot Air --- 65,000 65 000 BTU/Hr Total --- 113,000 BTU/Hr 208-240 1 15 1/2HP 208-240VAC, 50/60 Hz 120 1 15 1/2HP 208-240VAC, 50/60 Hz Propane 3/4” FNPT connector for all U.S.
BC14G OVEN LOCATION Left Side Heat Shield Certain minimum clearances must be maintained between the oven and any combustible or noncombustible construction. See the following table. Heat sources should not be near the air vents located on the left hand side of the gas appliance. Consult the factory for optional protective side heat shield. The following clearances are recommended for servicing.
INSTALLATION STACKING 4. Bolt the two appliances together using the bolts provided. WARNING!! Stacking should be performed by qualified installation personnel only. The appliances are heavy. Take care to use proper tools and techniques when lifting and stacking appliances. 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. 1. Remove the drip pan from the top appliance.
BC14G PLUMBING CONNECTIONS WATER CONNECTION DRAIN 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 between 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 assembly.
INSTALLATION DOOR ADJUSTMENTS NOTE: When making door adjustments, always adjust the hinge side first. B.) Tap the hinge in or out as needed. Keep the hinges parallel as shown in FIGURE 4C. 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. C.) Tighten the three allen head bolts. D.
BC14G 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.
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. 11 2. TEMPERATURE DIAL --- used to set the cooking temperature in all modes. In the Steam mode, the temperature must be set to less than or equal to 212_F (100_C). 10 1 3. STEAM INJECTION TIMER --- used to set the time for the steam injection cycle. 4. STEAM ON DEMAND SWITCH --- used to initiate steam injection cycle. 5.
OPERATION AND MAINTENANCE OPTIONAL MEAT PROBE CONTROLS IDENTIFICATION 1. Set the MODE SELECTOR Switch to the desired function. 1. MEAT PROBE SWITCH --- controls power to the meat probe. 2. Turn the MEAT PROBE Switch (1) to ON. 2. MEAT PROBE CONTROL --- use to set the desired probe temperature. Indicates the actual temperature of the product. 3. To set the desired core temperature press and hold the * BUTTON (4) on the MEAT PROBE CONTROL (2). 3.
BC14G AND BC14E DELIMING 10. Wait 1/2 to 1 hour. WARNING!! 11. Move the deliming switch to the RUN position. The appliance will automatically flush the steam generator for 90 seconds. Deliming solutions are hazardous and can cause burns to the skin and eyes. Wear protective clothing and eyewear when decalcifying your appliance. 12. After the unit flushes for 90 seconds, clean the deliming pump and deliming port. Fill the deliming reservoir to the SYSTEM FLUSH level with tap water.
CHAPTER 3 BC14G TROUBLESHOOTING
BC14G BC14G TROUBLESHOOTING GUIDE In the following troubleshooting guide, the schematic is broken down into areas. This allows the oven to be checked in sections. 3. Check the mode switch. See FIGURE 1. 4. Check the S2 door switch. See FIGURE 1, location (D). When troubleshooting, slide the control panel out and use your volt meter. The main control circuit voltage for all Synergy ovens is 230 volts.
TROUBLESHOOTING 8. Check that R204 contacts 9 to 1 are closed. See FIGURE 3, location (E). 3. Check relay R202 coil and contacts. See FIGURE 5. 9. Check that R202 contacts 1 to 9 are closed. See FIGURE 3, location (F). NO FLUSH / DRAIN MODE / MANUAL OR AUTO The T4 flush/drain solid state timing relay is energized when the P11 flush disable snap-disk is closed. Both of these parameters must be met for the manual flush/drain switch to work. 10. Check XFMR1 input and output power.
BC14G BC14G INCOMING POWER CHECK Optional 120V Input power L2 L1 F2 10A Slow Blow F1 10A Slow Blow 1 KVA Thermally protected to 160_C P N L1 N A Delime S15 B D F3 662_F (350_C) S2 Mode Switch 3 4 9 10 21 22 H4 C Power on Steam 5.
TROUBLESHOOTING BC14G HOT AIR FLOW CHART S1#12 Mode Switch P5 Temp Controller B H5 Contacts closed for heat 9 R205 1 A C L2 XFMR1 D THS2 24VAC IG1 G IG1 SPARK FS1 FS1 SENSE4 pv PV1 MV3 Hot Air IGN1 E THS2 SPARK SENSE4 Combination valve pv PV1 m Hot Air IGN2 FIGURE 2 3---4
BC14G BC14G STEAM FLOW CHART/WATER FILL S1#8 Mode Switch S1#6 C P5 Temp Controller A I R205 coil H5 demand on Contacts closed for steam 9 R205 5 Contacts closed for heat I Hot water fill E 1 F R202 9 B L2 G THS2 IG1 M/R Steam High limit IG1 SPARK FS1 C SENSE4 pv FS1 PV1 MV3 H G THS2 24VAC Hot Air IGN1 G THS2 SPARK IG1 SENSE4 SPARK FS1 Combination valve J 24VAC XFMR1 L2 T5 XFMR1 F6 H6 Steam G I R205 6 9 R204 1 10 Combination valve SENSE4 pv PV1 pv PV1 m
TROUBLESHOOTING BC14G COMBI FLOW CHART S1#18 Mode Switch A T2 Combi timer 25% Duty S1#20 2 1 9 Contacts open when filling P5 Temp Controller B R204 1 H5 Heat 9 R205 1 XFMR1 L2 C 1 R202 9 24VAC IG1 M/R Steam High limit IG1 SENSE4 pv Steam G IG1 G THS2 IG1 SPARK SPARK FS1 FS1 Combination valve Hot Air IGN1 THS2 24VAC SENSE4 pv m PV1 MV3 XFMR1 L2 G SPARK FS1 F6 THS2 SENSE4 Combination valve PV1 MV3 pv PV1 m MV3 Hot Air IGN2 Steam IGN1 FIGURE 4 3---6 G
BC14G BC14G ON DEMAND STEAM FLOW CHART S1#20 S1#20 Mode Switch S1#12 A S9 On demand steam button B T3 Timer 6 1 2 Contacts closed 10 R204 2 On demand steam.
TROUBLESHOOTING BC14G FLUSH FLOW CHART Optional 120V Input power L2 L1 F1 10A Slow Blow F2 10A Slow Blow N 1 KVA Thermally protected to 160_C A L1 Delime S15 N B P11 Flush disable Open at 180_F (82_C) Close at 160_F (71_C) 2 C 8 R206 6 R206 S HA C S4 S10 S22 7 E S12 Flush Drain Switch F/D 25 24 2 1 13 R203 coil 5 10 D 26 H D R203 9 R203 6 F T4 T 90 sec drain flush timer 11 R204 3 cw drain pump Flush fill FIGURE 6 3---8 G
BC14G BC14G WATER FILL/MEAT PROBE/CONDENSATE/COOLING FAN HA C S1#10 S1#22 A S S1#4 G P4 quench Open 140_F (60_C) Close 167_F (75_C) Quench I Cooling Fan H J 11 E S11 12 S13 HLC LLC L2 L 24V XFMR O 5 1 R5 B H2 F9 2 amp fuse K 208V S14 F Hot Water Slow Fill 13 14 L2 8 7 5 10 R204 6 R204 C 6 M Fast Fill N FIGURE 7 3---9 D
TROUBLESHOOTING BC14G DRAIN ASSEMBLY Vent Drain Hot Air Flue Hot Air Flue WATER INPUT Hot Air Flue EC/FAN MOTOR COVER C TOP UNIT STEAM FLUE H H PWR DRAIN GAS All Drain is supplied by customer EC/FAN WATER INPUT C H MOTOR COVER BOTTOM UNIT PWR H DRAIN GAS Drip pan drain NOTE: Connection is not vented FIGURE 8 3---10 to drain.
BC14G BC14G FLUE ASSEMBLY Hot Air Flue WATER INPUT Hot Air Flue Hot Air Flue Hot Air Flue EC/FAN MOTOR COVER TOP UNIT STEAM FLUE PWR DRAIN GAS EC/FAN WATER INPUT MOTOR COVER BOTTOM UNIT PWR DRAIN GAS FIGURE 9 3---11
TROUBLESHOOTING BC14G TIMER SETTINGS Remove dial section TOP VIEW SIDE Dial VIEW A B 4 3 1 2 4 3 SIDE VIEW 1 2 C L meter D Inside if dial section R 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.
CHAPTER 4 BC14G SCHEMATICS
BC14G BC14G FIGURE 1 4---1
SCHEMATICS BC14G FOR CE FIGURE 1 4---2
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CHAPTER 5 PRE-SITE VISIT QUESTIONS
BC14G AND BC14E TROUBLESHOOTING SEQUENCE HOT AIR MODE ALWAYS troubleshoot a Synergy oven in the following sequence; NO operation with the mode switch in the HOT AIR mode. 1. Cool Down 2. Hot Air 1. Does the green power on light on the top right corner of the control panel come “ON” or light up? 3. Steam 4. Combi 2. Turn the timer up to 10 minutes and then manually turn the timer down to the “zero” position.
COMPONENT IDENTIFICATION STEAM MODE COMBI MODE NO operation with the mode switch in the STEAM mode. NO operation with the mode switch in the COMBI mode. 1. Is the water on to the oven? 1. Does the green power on light on the top right corner of the control panel come “ON” or light up? 2. Is the fast fill light in the lower right hand corner of the front control panel “ON”? 2. Turn the timer up to 10 minutes and then manually turn the timer down to the “zero” position.
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CHAPTER 6 COMPONENT IDENTIFICATION
BC14G AND BC14E COMPONENT IDENTIFICATION The following is a key for the abbreviations of components on the schematic. Additional information is provided as to the function of the component to assist you in troubleshooting. tion: Input 24Vac to THS2 & GND. SPARK outputs to pilot assembly and sparks. PV1 outputs to pilot valve & opens valve. SPARK output continues until flame sense is proved (.15 microamps is lockout / minimum you should see is .2 ).
COMPONENT IDENTIFICATION 24. M – Convection motor. 1/2 hp , 208V / 115V convection motor. Has an internal self-resetting thermal overload at 250_F. 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. 25. Meat Probe (no designation) – “J” type thermocouple meat probe which plugs into front of the oven. 38. R5 – Meat probe relay D 26.
BC14G AND BC14E 46. (GAS OVENS) -- R205 --- Steam Override Relay 42. (ELECTRIC OVENS) -- R202 – On demand steam relay D D 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 / provides power to R204 relay terminal 9 (power is by-passed the temperature thermostat). D Coil not energied terminals 9 to 1 closed, normal operation, provides power to P5 Hot Air Thermostat. D 43. 203 – Flush / Drain Relay.
COMPONENT IDENTIFICATION 52. S9 – One Shot Steam Button. Pressing the button in any mode applies power to terminal 2 of T3 One Shot Steam Solid State Timer and initiates the steam circuit for the set time. 60. (ELECTRIC OVENS) -- Transformer (designated as “480V / 240V 150VA”) – step down transformer for 480V electric ovens only (transformer is located under oven cavity). 53. S10 – Fan Speed Switch 61. T1 --- Buzzer D D 62.
BC14G AND BC14E COMPONENT LOCATION DIAGRAMS 56 17 9 1 49 46 12 44 53 43 41 2 31 48 20 23 66 61 32 67 63 50 65 51 J1 64 62 54 38 68 14 13 26 29 28 REAR VIEW 59 15 24 6 35 DRAIN 30 BC14G COMPONENT LOCATIONS FIGURE 1 6---5 53 25 16 57 7 18 52 J4 58 19 55
COMPONENT IDENTIFICATION 56 17 49 9 1 19 47 12 45 J3 43 2 42 31 18 40 39 50 J1 63 20 52 J4 61 51 64 23 62 5 54 38 13 26 68 53 25 16 57 55 28 8 On Bottom Tray REAR VIEW 4 24 15 6 21 30 DRAIN BC14E COMPONENT LOCATIONS FIGURE 2 6---6 11 33 34 22 60 27
CHAPTER 7 BC14E SCHEMATICS
BC14E BC14E FIGURE 1 7---1
TROUBLESHOOTING BC14E FOR CE FIGURE 1 7---2
CHAPTER 8 BC14E TROUBLESHOOTING
BC14E BC14E TROUBLESHOOTING GUIDE In the following troubleshooting guide, the schematic is broken down into areas. This allows the oven to be checked in sections. 2. Check the F3 oven high limit. See FIGURE 1, location (B). 3. Check the mode switch. See FIGURE 1. When troubleshooting, slide the control panel out and use your volt meter. The main control circuit voltage for all Synergy ovens is 230 volts.
TROUBLESHOOTING NO FLUSH / DRAIN MODE / MANUAL OR AUTO 6. Check that relay R205 contacts 9 to 5 are closed. Check coil and contacts for proper operation. See FIGURE 3, location (C). The T4 flush/drain solid state timing relay is energized when the P11 flush disable snap-disk is closed. Both of these parameters must be met for the manual flush/drain switch to work. 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).
BC14E BC14E SAFETY LIMITS FLOW CHART L2 L1 A P P N Noise Filter G A N P13 Open at 176_F (80_C) Close at 149_F (65_C) H4 Power on Delime S15 F3 662_F (350_C) B Mode Switch 3 D S2 C 5.
TROUBLESHOOTING BC14E HOT AIR FLOW CHART Mode Switch S1#12 9 Contacts closed for heat R202 1 P5 Temp Controller B H5 A 9 Contacts closed for heat Contacts Closed for hot air C R205 1 10 R201 R200 2 K2--- A D 10 E 6 F K2--- B Hot air contactor Primary Hot air contactor FIGURE 2 8---4 R200 coil Hot air relay
BC14E BC14E STEAM FLOW CHART S1#8 Mode Switch S1#6 9 R202 1 Contacts closed for steam B P5 Temp Controller H5 A 9 C R205 5 R205 coil 9 R204 1 D Split load in combi mode R201 coil E 9 R201 5 Contacts closed for steam G H Contacts closed for steam H6 Steam F6 F Steam High Limit 9 R200 1 K3--- B Steam contactor Primary K3--- A Steam contactor FIGURE 3 8---5
TROUBLESHOOTING BC14E COMBI FLOW CHART Mode Switch S1#18 T2 Combi timer 25% Duty B Contacts open when filling 2 S1#20 9 R202 1 A 1 C P5 Temp Controller 9 R204 1 H5 Heat 9 R205 1 Split load when steam on in combi mode C Contacts Closed in combi R201 coil 9 R201 5 10 R201 2 F6 K2--- A M/R Steam High limit Hot air contactor K3--- B H6 Steam 9 R200 1 Primary Steam contactor Contacts closed for steam R200 coil K3--- A 10 R200 6 K2--- B Steam contactor FIGURE 4 8---6 Hot air conta
BC14E BC14E ON DEMAND FLOW CHART S1#20 S1#20 Mode Switch S1#12 S1#6 A S9 On demand steam button B 6 T3 Timer 2 C 1 R202 coil 9 R202 5 On demand steam.
TROUBLESHOOTING BC14E FLUSH FLOW CHART L1 L2 P N G P N P13 Open at 176_F (80_C) Close at 149_F (65_C) A Delime S15 P11 Flush disable Open at 180_F (82_C) Close at 160_F (71_C) B C 2 8 R206 6 R206 S HA C S4 S10 S22 7 S12 Flush Drain switch E D F/D 25 24 10 R203 6 D 26 H 13 R203 coil F 5 R203 9 2 1 11 R204 3 T4 90 sec drain flush timer cw drain pump Flush fill FIGURE 6 8---8 G
BC14E BC14E WATER FILL/MEAT PROBE S HA S1#4 S1#10 P4 quench Open 140_F (60_C) Close 167_F (75_C) S1#22 S1#8 P12 cold plate Open 95_F (35_C) Close 122_F (50_C) Quench Cooling Fan 208V S11 S14 S13 F9 HLC LLC H2 F9 2 amp fuse L2 13 24V 5 R5 Hot Water Slow Fill 1 R204 14 L2 8 7 5 6 Fast Fill FIGURE 7 8---9 10 R204 6
TROUBLESHOOTING BC14E DRAIN ASSEMBLY Drain Vent EC/FAN WATER INPUT MOTOR COVER C TOP UNIT H H PWR DRAIN All Drain is supplied by customer EC/FAN WATER INPUT C H MOTOR COVER BOTTOM UNIT PWR H DRAIN Drip pan drain NOTE: Connection is not vented FIGURE 8 8---10 to drain.
BC14E BC14E TIMER SETTINGS Remove dial section TOP VIEW SIDE A Dial VIEW B 4 3 1 2 4 3 SIDE VIEW 1 D 2 C L meter Inside if dial section R 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.
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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.
INSTALLATION RATINGS -- ELECTRIC APPLIANCES -- BC14E/AA and BC14EDS/AA Voltage Hz Max Load (amps) Phase L1 L2 L3 Motor 208 60 1 89 89 --- 1/2HP 208-240VAC, 50/60 Hz 208 60 3 52 52 52 1/2HP 208-240VAC, 50/60 Hz 240 60 1 82 82 --- 1/2HP 208-240VAC, 50/60 Hz 240 60 3 47 47 47 1/2HP 208-240VAC, 50/60 Hz 480 60 3 23 23 23 1/2HP 208-240VAC, 50/60 Hz 380/220 50 3 25 25 25 1/2HP 208-240VAC, 50/60 Hz 415/240 50 3 27 27 27 1/2HP 208-240VAC, 50/60 Hz 400/230 50
BC14E STACKING 3. Place the top appliance on the bottom appliance. Be sure all four sides are flush. WARNING!! Stacking should be performed by qualified installation personnel only. The appliances are heavy. Take care to use proper tools and techniques when lifting and stacking appliances. 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. 1. Remove the drip pan from the top appliance. 2.
INSTALLATION PLUMBING CONNECTIONS WATER CONNECTION DRAIN CONNECTION Connect the appliance to quality water via a pressure hose with 3/4” (19mm) couplings. See FIGURE 3 for connections. A shut off valve is to be provided adjacent to the oven. The steam vent assemblies are constructed of 2” DWV copper piping reduced to 1-1/2 DWV pipe. If the vent system is not purchased as an option (R9381), Blodgett Combi recommends plumbing the oven as shown in FIGURE 4.
BC14E DOOR ADJUSTMENTS NOTE: When making door adjustments, always adjust the hinge side first. B.) Tap the hinge in or out as needed. Keep the hinges parallel as shown in FIGURE 5C. 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. C.) Tighten the three allen head bolts D.
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.
