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SERVICE MANUAL
VL BOILER BASE SERIES
CONVECTION STEAMERS
(GAS, ELECTRIC, DIRECT AND REGENERATED)
VL2GPS ML-52391 VL2DPS ML-52749
VL2GMS ML-52388 VL2DMS ML-52750
VL2GAS ML-52390 VL2DAS ML-52751
VL2GSS ML-52389 VL2DSS ML-52752
VL3GPS ML-52395 VL3DPS ML-52753
VL3GMS ML-52392 VL3DMS ML-52754
VL3GAS ML-52394 VL3DAS ML-52755
VL3GSS ML-52393 VL3DSS ML-52756
VL2EPS ML-52741 VL2RPS ML-52757
VL2EMS ML-52742 VL2RMS ML-52758
VL2EAS ML-52743 VL2RAS ML-52759
VL2ESS ML-52744 VL2RSS ML-52760
VL3EPS ML-52745 VL3
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VL SERIES STEAMERS TABLE OF CONTENTS GENERAL ............................................................................. 4 Introduction ........................................................................ 4 Compartment Pan Capacity ........................................................ 4 Model Designations .............................................................. 4 Water Conditioning .................................................................. 4 Tools .........................
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VL SERIES STEAMERS Direct Steam Models ................................................................ 34 Regenerated Steam (Older Models) ..................................................... 34 Heater Contactors .................................................................. 34 Heating Elements .................................................................. 34 Thermal Switch - Prevent and Automatic Models ........................................... 36 Water Level Gauge Assembly ........
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VL SERIES STEAMERS - GENERAL GENERAL Boiler Code Descriptions INTRODUCTION Vulcan-Hart incorporates redundant controls in compliance with California Code (Cal-Code) and Steam Cooking CSD-1 as an option on steam equipment when required by state and/or local building code Large capacity pressure steamers offer an efficient requirements. Descriptions of the codes are listed way to produce a wide variety of foods in small below. portions or larger batches. Steamers can be used to cook fresh foods, b
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VL SERIES STEAMERS - GENERAL This causes several problems: NOTE: Adaptors vary between manufacturers. An example of one adaptor type is pictured below. 1. Reduce the heat transfer efficiency of the heating system. 2. Cause premature failure of Electric heaters. 3. Water level probes will give false readings. 4. Thermostat bulbs will sense temperature incorrectly. These problems are common to any manufacturer's steamer regardless of design, but they can all be prevented by furnishing the boiler w
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VL SERIES STEAMERS - GENERAL Gas Steamers LINE PRESSURE MANIFOLD INPUT AMPS (INCHES W.C.) PRESSURE (BTU/HR) (MAX) LOAD (INCHES W.C.) NATURAL PROPANE (WATTS) MAX 120V MODEL NAT. PROP. NAT. PROP. RECOMMEND MIN RECOMMEND MIN 60HZ 200,000 200,000 VL2GPS 4.0 10.0 7.0 5.0 11.0 11.0 14.0 360 3.0 240,000 240,000 200,000 200,000 VL2GMS 4.0 10.0 7.0 5.0 11.0 11.0 14.0 360 3.0 240,000 240,000 200,000 200,000 VL2GAS 4.0 10.0 7.0 5.0 11.0 11.0 14.0 360 3.0 240,000 240,000 200,000 200,000 VL2GSS 4.
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VL SERIES STEAMERS - GENERAL Also, the ignition control module STEAMER OPERATION ON/OFF/RESET switch must be in the ON position to operate. This switch is located on the upper left side of the electrical Ensure that all utility connections to the steamer control box for the ignition control module. have been made and are turned on. A red light will illuminate when the switch On models that are CSD-1 equipped, amber colored is in the ON position. DO NOT ATTEMPT lights for hi pressure and low wate
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VL SERIES STEAMERS - GENERAL Observe water level gauge glass to verify that water Cooking Compartment Controls is in boiler and that the level in the gauge glass is Close the compartment door and turn the screw about half full. handle clockwise until the gasket touches the Both valves on the gauge glass assembly must be compartment surface then ½ turn further to open to fill the gauge. When the water reaches the adequately seal the compartment. If steam leaks minimum level, the steam solenoid v
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VL SERIES STEAMERS - GENERAL 2. Standard 3. Automatic A. Set the timer to the desired cooking time. A. Set the timer to the desired cooking time. The timer must be set past five minutes to The timer must be set past five minutes to change the state of the timer control micro change the state of the timer control switch contacts. If preheating is desired, micro switch contacts. allow five to ten minutes (recommended) B. Pull the steam control arm handle forward of additional time at the beginnin
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VL SERIES STEAMERS - GENERAL 4. Prevent D. Approximately one minute before timer reaches zero the steam control solenoid is A. Set the timer to the desired cooking time. energized to unlatch the steam control The timer must be set past five minutes to arm. An internal spring will automatically change the state of the timer control pull the arm to the rear. This closes the micro switch contacts. steam inlet gate valve and opens the steam exhaust gate valve, allowing steam B. Pull the steam contr
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VL SERIES STEAMERS - GENERAL COMPONENT FUNCTION CABINET BASE BOILER CONTROLS Water Level Gauge Assembly ............... Permits a visual confirmation the water level is being maintained in boiler during operation. The correct water level is a point one-half of the height of the glass. The manual valves at the top and bottom of this assembly must be fully open and only closed if the glass tube is damaged. Water Level Control and Level Sensing Probes ........... These controls allow water to enter
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VL SERIES STEAMERS - GENERAL Handhole Cover Assembly ....... When unbolted and removed, allows internal examination and cleaning of boiler shell and its components if required. Boiler Pressure Gauge .......... Indicates the amount of steam pressure in the boiler. Check Valve ................... On models with the delime piping assembly option, prevents the ejection of hot water and steam out of the delime funnel if the manual delime fill valve were to be opened. Delime Port Assembly ...........
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VL SERIES STEAMERS - GENERAL 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 through the compartment power switch and the cooking timer control micro switch contacts. Prevent and Automatic models have a load compensating thermal switch that prevents the controls from receiving power until the compartment r
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VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS REMOVAL AND REPLACEMENT OF PARTS COMPONENT LOCATIONS Page 14 of 88
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VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS Page 15 of 88
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VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS COOKING COMPARTMENT CONTROLS - COMPONENT CONFIGURATIONS 1. Prevent thermal switch, inlet steam gate valve, steam exhaust solenoid (shown above) valve, steam control arm solenoid, timer, buzzer and power switch with light. Does not use a steam trap. 2. Automatic same as prevent except does not include steam exhaust solenoid valve but does include an exhaust steam gate valve and two steam traps. 3. Standard same as automatic except does
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VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS 4. Slide the glass tube upwards until the bottom of WATER LEVEL CONTROLS - the tube is clear of the fitting and lift it out. LOW LEVEL CUT OFF AND 5. When reinstalling the tube use new sealing DIFFERENTIAL washers. Do not over tighten the packing nuts; it could break the gauge glass. WARNING: DISCONNECT THE ELECTRICAL 6. Open the top and bottom valves and check for POWER TO THE MACHINE AT THE MAIN proper operation. CIRCUIT BOX. PLACE A TAG O
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VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS BOILER ASSEMBLY HIGH LIMIT THERMOSTAT WARNING: DISCONNECT THE ELECTRICAL WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING BOX INDICATING THE CIRCUIT IS BEING SERVICED. SERVICED. WARNING: SHUT OFF THE GAS BEFORE 1. Open the cabinet base doors. SERVICING THE UNIT. 2. Electric mod
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VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS BOILER FILL AND COLD WATER GAS COMBINATION CONTROL CONDENSER SOLENOID VALVES VALVE WARNING: DISCONNECT THE ELECTRICAL WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AT THE MAIN POWER TO THE MACHINE AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING BOX INDICATING THE CIRCUIT IS BEING SERVICED. SERVICED. 1. Turn off the water supply to the steamer. WARNING: S
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VL SERIES STEAMERS - REMOVAL AND REPLACEMENT OF PARTS 4. Turn screw handle fully counterclockwise and COMPARTMENT GASKET AND remove from door. DOOR SCREW NUT, DOOR AND 5. Remove screws mounting the pressure bar to BUSHINGS the backside of the compartment door. NOTE: A compression spring is mounted behind each screw. Set aside for reuse. Gasket 6. Remove screws mounting the door screw nut 1. Open the compartment door to be replaced. (bronze) to the backside of the compartment 2. Remove screws s
