Vulcan VL2GMS - Manuals

VL SERIES STEAMERS - GENERAL Page 6 of 88 Gas Steamers INPUT (BTU/HR) MANIFOLD PRESSURE (INCHES W.C.) LINE PRESSURE (INCHES W.C.) LOAD (WATTS) AMPS (MAX) NATURAL PROPANE MAX MODEL NAT. PROP. NAT. PROP. RECOMMEND MIN RECOMMEND MIN 120V 60HZ VL2GPS 200,000 200,000 4.0 10.0 7.0 5.0 11.0 11.0 14.0 360 3...

VL SERIES STEAMERS - GENERAL Page 7 of 88 STEAMER OPERATION Ensure that all utility connections to the steamerhav e been made and are turned on. On models that are CSD-1 equipped, amber coloredlights for hi pressure and low water lev el willilluminate and stay on until the boiler is full and themanu...

VL SERIES STEAMERS - GENERAL Page 8 of 88 Observ e water lev el gauge glass to v erify that wateris in boiler and that the lev el in the gauge glass isabout half full. Both v alv es on the gauge glass assembly must beopen to fill the gauge. W hen the water reaches theminimum lev el, the steam soleno...

VL SERIES STEAMERS - GENERAL Page 10 of 88 4. Prevent A. Set the timer to the desired cooking time.The timer must be set past fiv e minutes tochange the state of the timer controlmicro switch contacts. B. Pull the steam control arm handle forwardand lock it by pulling the handle down.This opens the ...

VL SERIES STEAMERS - GENERAL Page 11 of 88 COMPONENT FUNCTION CABINET BASE BOILER CONTROLS Water LevelGauge Assembly . . . . . . . . . . . . . . . Permits a v isual confirmation the water lev el is being maintained inboiler during operation. The correct water lev el is a point one-half of theheight ...

VL SERIES STEAMERS - GENERAL Page 13 of 88 COOKING COMPARTMENT CONTROLS The top half of the steamer consists of two to three separate cooking compartments depending on the model.Each compartment functions independently with its own set of controls. Power is supplied to the controls throughthe compar...

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 14 of 88 REMOVAL AND REPLACEMENT OF PARTS COMPONENT LOCATIONS

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 16 of 88 COOKING COMPARTMENT CONTROLS - COMPONENT CONFIGURATIONS 1. Prev ent (shown abov e) thermal switch, inlet steam gate v alv e, steam exhaust solenoidv alv e, steam control arm solenoid, timer, buzzer and power switchwith light. Does n...

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 17 of 88 WATER LEVEL CONTROLS - LOW LEVEL CUT OFF AND DIFFERENTIAL WARNING: DISCONNECT THE ELECTRICALPOW ER TO THE MACHINE AT THE MAINCIRCUIT BOX. PLACE A TAG ON THE CIRCUITBOX INDICATING THE CIRCUIT IS BEINGSERVICED. Solid State 1. Open the...

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 18 of 88 BOILER ASSEMBLY WARNING: DISCONNECT THE ELECTRICALPOW ER TO THE MACHINE AT THE MAINCIRCUIT BOX. PLACE A TAG ON THE CIRCUITBOX INDICATING THE CIRCUIT IS BEINGSERVICED. WARNING: SHUT OFF THE GAS BEFORESERVICING THE UNIT. WARNING: ALL ...

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 19 of 88 BOILER FILL AND COLD WATER CONDENSER SOLENOID VALVES WARNING: DISCONNECT THE ELECTRICALPOW ER TO THE MACHINE AT THE MAINCIRCUIT BOX. PLACE A TAG ON THE CIRCUITBOX INDICATING THE CIRCUIT IS BEINGSERVICED. 1. Turn off the water supply...

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 20 of 88 COMPARTMENT GASKET AND DOOR SCREW NUT, DOOR AND BUSHINGS Gasket 1. Open the compartment door to be replaced. 2. Remov e screws securing the gasket retainingplate to the gasket. 3. Lift the gasket off the inner door plate. 4. Positio...

VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 21 of 88 HEATER CONTACTORS WARNING: DISCONNECT THE ELECTRICALPOW ER TO THE MACHINE AT THE MAINCIRCUIT BOX. PLACE A TAG ON THE CIRCUITBOX INDICATING THE CIRCUIT IS BEINGSERVICED. 1. Open the cabinet base doors, remov e the twoscrews from the ...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 22 of 88 SERVICE PROCEDURES AND ADJUSTMENTS WARNING: CERTAIN PROCEDURES IN THIS SECTION REQUIRES ELECTRICAL TEST ORMEASUREMENTS W HILE POW ER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT ALLTIMES. IF TEST POINTS ARE NOT EASILY ACC...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 23 of 88 10. Cooking compartment timers are to be in the OFF position. Turn the boiler switch ON andopen water v alv e if necessary. 11. Boiler is to operate under pressure for 90 minutes or per the instructions for the chemicalin use. 12. ...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 24 of 88 WATER LEVEL CONTROL(S) TEST Loose electrical connections may prev ent the heatfrom coming on or may cause the boiler to ov erfill.An accumulation of lime scale on or near the waterlev el sensing probes may cause them to retainwater...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 25 of 88 B. W ith the boiler empty, check the v oltageacross terminals 9 & 10. Meter shouldread 300 to 350VAC. If v oltage is correctproceed to step 3. If v oltage reading isapproximately 30VAC then the internalcontactor is energized bu...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 26 of 88 Two slotted and square headed adjustment screwsextend through the top of the switch case. Apressure scale and indicating pointers are v isiblethrough the sight glass window to indicate theapproximate pressure setting. The adjustmen...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 27 of 88 HIGH LIMIT THERMOSTAT WARNING: DISCONNECT THE ELECTRICALPOW ER TO THE MACHINE AT THE MAINCIRCUIT BOX. PLACE A TAG ON THE CIRCUITBOX INDICATING THE CIRCUIT IS BEINGSERVICED. Remov e thermostat (bi-metallic disk type) asoutlined unde...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 28 of 88 If the blowdown operation appears to functionsluggishly or not at all, considerable scalants maybe lodged in the drain pipe and/or the v alv e.Disconnect the v alv e from the drain line and inspectboth the v alv e and the drain pip...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 29 of 88 C. Gas burner ports clogged or obstructionaround air shutter. After a period of time,gas burners can accumulate carbon intheir ports or become clogged by food andgrease debris from kitchen cleaning,restricting performance. To clean...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 31 of 88 D. W ith the thermocouple disconnected,connect the meter leads to the tube andthreaded end. Turn the power switch ONand light the pilot. Hold down theOFF/PILOT/ON knob and allow the pilot toheat the thermocouple for one to twominut...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 32 of 88 Once the pilot flame is confirmed, a 24 v olt outputfrom terminal one will be sent, allowing the mainv alv e (cycling) coil of the combination v alv e tooperate at the request of the cycling pressureswitch. Terminals: 1. Main Valv ...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 33 of 88 2) If a spark from ignitor is present butdoes not ignite gas before the ignitioncontrol module locks out, (90 sec.)there may not be enough gas in theline for ignition. Verify the gas supplyand gas combination control v alv eare bot...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 34 of 88 7. Once the correct pressure has been set, turnthe power switch OFF, replace the adjustmentscrew cap and 1/8 inch NPT plug (pressure tap)on the outlet side of the v alv e. 8. Check for proper operation. DIRECT STEAM MODELS These mo...

VL SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS Page 36 of 88 THERMAL SWITCH - PREVENT AND AUTOMATIC MODELS The load compensator is a thermal switch in astainless steel housing that screws into a 3/8 NPTfitting (newer models) on the left side wall of thecompartment. The switch contacts should...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 38 of 88 ELECTRICAL OPERATION WATER LEVEL CONTROLS Solid State - Low level Cut-Off & DifferentialControl The steamer is equipped with three water lev elsensing probes (high, low and low lev el cut-off) anda single water lev el control board. The wate...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 39 of 88 Solid State - Auxiliary Low Level Cut-Off This control serv es as a safety backup to the mainwater lev el control (W LC) board to meet Cal-Codeand CSD-1 code requirements. The auxiliary controlprov ides auxiliary low lev el cut-off protection to...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 41 of 88 Electro Mechanical - Auxiliary Low Level Cut-Off This control serv es as a safety backup to the main low lev el cut-off (LLCO) control to meet Cal-Coderequirements. The operation of the auxiliary control is identical to the main low lev el cut-o...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 42 of 88 SEQUENCE OF OPERATION GAS MODELS This sequence of operation is written for steamerswith electronic ignition, solid state water lev elcontrols, CSD-1 (code) boiler controls option andwith Prev ent cooking compartment controls. Referto schematic d...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 44 of 88 Cook Cycle 1. A Cook cycle should not be started, until theinitial fill and preheat is completed, in order forthe boiler steam pressure to be withinoperational limits. A. Insert product into steamer. B. Compartment door is closed and screwhandle...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 45 of 88 1) HL-3 opens. 2) Fill solenoid de-energized and waterstops flowing into tank. 3) HL LED goes out. 4. The water refill cycle will occur whenev er thewater lev el is below the low lev el probe and willnot affect the operation of either the prehea...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 46 of 88 NOTE: Power the internal contactors onthe low lev el cut-off and auxiliary low lev elcut-off will remain, until the water lev eldrops below the LLCO probes or the powerswitch is turned OFF. 4. Manual reset switch is pressed (momentary). A. The a...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 47 of 88 F. Once compartment temperature reachesapproximately 180°F thermal switchcloses and supplies power L1 (HOT) to: 1) Steam exhaust solenoid v alv e (N.O.)energized and closes. NOTE: Ev en though steam exhaustsolenoid v alv e is closed, a small ope...

VL SERIES STEAMER - ELECTRICAL OPERATION Page 48 of 88 PAGE PURPOSELY LEFT BLANK

VL SERIES STEAMER - ELECTRICAL OPERATION Page 49 of 88 SCHEMATICS, GAS STEAMERS, BOILER CONTROLS VL2G AND VL3G - PREVENT, AUTOMATIC, STANDARD AND MANUAL Manual Ignition, Standard Controls

VL SERIES STEAMER - ELECTRICAL OPERATION Page 50 of 88 Electronic Ignition, Standard Controls

VL SERIES STEAMER - ELECTRICAL OPERATION Page 54 of 88 WIRING DIAGRAMS, GAS STEAMERS, BOILER CONTROLS VL2G AND VL3G - PREVENT, AUTOMATIC, STANDARD AND MANUAL Manual Ignition, Standard Controls

VL SERIES STEAMER - ELECTRICAL OPERATION Page 62 of 88 SCHEMATICS, ELECTRIC STEAMERS, BOILER CONTROLS VL2E AND VL3E - PREVENT, AUTOMATIC, STANDARD AND MANUAL Auto Blowdown, Standard Controls

VL SERIES STEAMER - ELECTRICAL OPERATION Page 64 of 88 WIRING DIAGRAMS, ELECTRIC STEAMERS, BOILER CONTROLS VL2E AND VL3E - PREVENT, AUTOMATIC, STANDARD AND MANUAL Auto Blowdown, Standard Controls (contactor - 1 std.)

VL SERIES STEAMER - ELECTRICAL OPERATION Page 76 of 88 WIRING DIAGRAMS, ELECTRIC HEATER CIRCUITS VL2E AND VL3E - PREVENT, AUTOMATIC, STANDARD AND MANUAL Standard and Cal-Code/CSD-1 Controls

VL SERIES STEAMER - ELECTRICAL OPERATION Page 78 of 88 WIRING DIAGRAMS, REGENERATED STEAMERS, BOILER CONTROLS VL2R AND VL3R - PREVENT, AUTOMATIC, STANDARD AND MANUAL Manual Blowdown (Older Models)

VL SERIES STEAMER - ELECTRICAL OPERATION Page 80 of 88 SCHEMATIC AND WIRING DIAGRAMS - COMPARTMENT CONTROLS Prevent

VL SERIES STEAMER - ELECTRICAL OPERATION Page 81 of 88 Automatic

VL SERIES STEAMER - ELECTRICAL OPERATION Page 83 of 88 Manual NO ELECTRICAL COMPONENTS ARE USED W ITH THE MANUAL COMPARTMENT CONTROLS OPTION. THE CONTROLS CONSIST OF A MANUAL COOKING TIMER AND MANUAL STEAM CONTROL ARM TOCLOSE AND OPEN THE STEAM GATE VALVES.

VL SERIES STEAMER - TROUBLESHOOTING Page 84 of 88 TROUBLESHOOTING ALL MODELS WARNING: CERTAIN PROCEDURES IN THIS SECTION REQUIRE ELECTRICAL TESTS ORMEASUREMENTS W HILE POW ER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT ALLTIMES. IF TEST POINTS ARE NOT EASILY ACCESSIBLE, DISCONNECT POW ER,...

VL SERIES STEAMER - TROUBLESHOOTING Page 87 of 88 GAS MODELS ONLY SYMPTOM POSSIBLE CAUSES Burner won’t light. 1. Gas not on. 2. Ignition control module reset switch in the OFF position ormalfunctioning. 3. Ignition module not receiv ing power. Check ignition moduletransformer for 24VAC output to mod...