Vulcan-Hart VULCAN VGL20 User's Manual
Contents
1. WHEN OPERATING CLEANING AND SERVICING THE STEAM KETTLE CONTROLS Figs 1 2 COOKING LOW WATER COOK TEMP PRESSURE WATER LEVEL Fig 1 Controls Draw Off Valve Lid Kettle Tank Jacket Steam Pressurized 6 Water Level Burner Main Power Switch Turns main power ON or OFF Switch must be turned ON to heat the kettle Turn the switch OFF when the kettle will not be in use for long periods Red Cooking Light This light is on whenever the main burner gas is on On units with electronic ignition this light may be on without the burners being on if the standing pilot becomes extinguished see page 8 Amber Low Water Light All kettles are supplied with sufficient distilled water inside the pressurized jacket If at any time the water level falls below that required for proper operation the kettle will not heat and this light will come on Contact your Vulcan authorized servicer to have water added to the jacket and to have the vacuum pressure re established Thermostat Sets the kettle s internal operating temperature 150 285 F or OFF Pressure Gauge Indicates the internal operating pressure of the kettle When cold the gauge should indicate 25 to 30 inches mercury column vacuum If it does not contact your Vulcan authorized servicer Under normal operation with the kettle empty and the thermostat set to 285 F the pressure shall reach 38 psig When loaded the p2. is set for 4 W C manifold pressure for natural gas or 10 W C for propane gas Use the s pipe tap on the burner manifold for checking pressure An adequate gas supply is necessary Undersized or low pressure lines will restrict the volume of gas required for satisfactory performance A maximum supply pressure of 8 W C for natural gas and 13 W C for propane gas is recommended With all units operating simultaneously the manifold pressure on all units should not show any appreciable drop Fluctuations of more than 25 on natural gas and 10 on propane gas will create pilot problems and affect burner operating characteristics Contact your gas company for correct supply line sizes Purge the supply line to clean out any dust dirt or any foreign matter before connecting the line to the unit Caution The pipe thread compound used when installing pipes must be a type that is resistant to the action of liquified petroleum or propane gases Codes require that a gas shut off valve be installed in the gas line prior to the kettle Make sure the pipes are clean and free of obstructions dirt and piping compound TESTING THE GAS SUPPLY PIPING When test pressures exceed 2 psig 3 45 kPa the steam kettle and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of the system When test pressures are 2 psig 3 45 kPa or less the kettle must be isolated from the gas supply piping
3. performance The VGL Kettles are intended for commercial use only not for household use If the VGL kettle s model designation ends in E the unit is provided with electronic ignition instead of a pilot light The VGL kettles are stationary self contained and come fully assembled from the factory CAPACITY and GAS RATINGS Model VGL20 VGL20E VGL40 VGL40E VGL60 VGL60E Capacity 20 gallons 40 gallons 60 gallons BTU Rating 100 000 BTU hr 100 000 BTU hr 130 000 BTU hr INSTALLATION UNPACKING Uncrate carefully Immediately after unpacking check for possible shipping damage If the steam kettle is found to be damaged save the packaging material and contact the carrier within 15 days of delivery Before installing verify that the gas natural or propane the elevation from sea level and the electrical supply agree with the specifications on the rating plate which is located on the lower right side NOTE if this kettle is being installed above 2000 feet altitude contact your Vulcan authorized service office to assure that the proper orifice size for your elevation has been installed LOCATION The installation location must be kept free and clear of combustibles Clearance from combustible construction must be a minimum of 6 inches from the sides 2 inches from the back at the flue box and 6 inches from the floor as provided by legs Provide adequate clearances for cleaning maintenance service and proper o
4. pilot burner On units recently installed the pilot line will require bleeding Consequently the pilot may not ignite immediately and it may be necessary to keep the combination control dial depressed until sufficient gas reaches the pilot to keep it burning After bleeding wait 5 minutes before attempting ignition 5 Turn combination control dial ON B Shut Down 1 Standby a Turn combination control to pilot position 2 Complete a Depress lightly and turn combination control dial OFF b Turn thermostat to lowest position c Turn power switch OFF d Turn any gas service valves supplying gas OFF C Relighting 1 Shut off all gas turn combination control OFF 2 Wait 5 minutes 3 Repeat lighting instructions in section A above USING THE GAS CONTROL Kettles with Electronic Ignition Units eguipped with electronic ignition do not reguire lighting the pilot with a match A Lighting 1 Turn thermostat to lowest position and turn the power switch OFF 2 Open control panel access door 3 Turn dial on combination control to ON position by rotating the control knob counterclockwise to stop on black line Depress control knob completely and release then continue to rotate to ON NOTE Any gas service valves exterior to the unit should be open 4 Turn power switch ON After step 4 there will be a 2 minute and 10 second delay before the kettle will attempt ignition At this time the spark igniter will
5. system by closing its individual shut off valve during any pressure testing of the system WARNING PRIOR TO START UP CHECK ALL JOINTS IN THE GAS SUPPLY LINE FOR LEAKS USE SOAP AND WATER SOLUTION DO NOT USE AN OPEN FLAME Do not connect the kettle to the electrical supply until after the gas connection has been made ELECTRICAL CONNECTION Refer to the electrical diagram attached to the inside of the front panel and to ELECTRICAL DATA ELECTRICAL DATA MODEL Volts Hz Ph Standard Optional KT ini Cord Connected Steam Kettles WARNING THE SUPPLY CORD ON THE STEAM KETTLE IS PROVIDED WITH A GROUNDING PLUG THE OUTLET TO WHICH THIS PLUG IS CONNECTED MUST BE PROPERLY GROUNDED IF THE RECEPTACLE IS NOT THE PROPER GROUNDING TYPE CONTACT AN ELECTRICIAN Hard Wire Connected Steam Kettles WARNING ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND OR OTHER LOCAL CODES WARNING DISCONNECT THE ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH INDICATING THAT YOUR ARE WORKING ON THE CIRCUIT Units equipped for 208 or 236 volt 60 Hz single or three phase electrical service are factory equipped with a transformer To connect supply wires remove the cover from the transformer box at the right rear of the unit Route supply wires and ground wire through the hole in the cover with a strain relief fitting Connect wires to the primary transformer termina
6. LATION HOOD The steam kettle must be installed under a suitable ventilation hood PRESSURE RELIEF VALVE The pressure relief valve is located at the right rear of the unit This area should be kept clear and should not be in an area where operators will normally stand The elbow on the relief valve should be turned toward the floor A maximum 3 foot 3 4 diameter pipe may be used to extend to the floor but must not be piped directly to a drain it must vent to the atmosphere PRESSURE GAUGE Check the pressure gauge on the front panel before operating If the pressure gauge does not indicate 20 to 30 inches of mercury column vacuum contact your authorized Vulcan authorized servicer to re establish the vacuum WATER CONNECTION Steam kettles equipped with an optional water fill valve should be connected to the water supply line minimum 14 at the 1 4 NPT internal threaded fitting on the valve Units with dual hot and cold valves must have the hot water line connected to the side with the hot water valve red and cold water line to the cold water valve blue Plastic or rubber hose is not recommended as it may melt against the hot kettle side GAS CONNECTION The data plate on the lower right side of the kettle indicates the type of gas your unit is equipped to burn DO NOT connect to any other gas type A 1 NPT line is provided at the rear for the connection Each kettle is equipped with an internal pressure regulator which
7. VULCAN INSTALLATION amp OPERATION MANUAL VGL SERIES GAS STEAM KETTLES MODEL VGL20 VGL40 VGL60 VGL20E VGL40E VGL60E MODEL VGL40 VULCAN HART COMPANY P O BOX 696 LOUISVILLE KY 40201 0696 TEL 502 778 2791 FORM 30909 1 95 IMPORTANT FOR YOUR SAFETY THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL GUALIFIED TO INSTALL GAS EQUIPMENT WHO SHOULD PERFORM THE INITIAL FIELD START UP AND ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED THIS INFORMATION CAN BE OBTAINED FROM THE LOCAL GAS SUPPLIER IMPORTANT IN THE EVENT A GAS ODOR IS DETECTED SHUT DOWN UNITS AT MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SUPPLIER FOR SERVICE FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE WARNING IMPROPER INSTALLATION ADJUSTMENT ALTERATION SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE INJURY OR DEATH READ THE INSTALLATION OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT IN THE EVENT OF A POWER FAILURE DO NOT ATTEMPT TO OPERATE THIS DEVICE Installation Operation and Care of VGL SERIES GAS STEAM KETTLES SAVE THESE INSTRUCTIONS FOR FUTURE USE GENERAL The VGL Series Gas Steam Kettles use efficient gas heat and thermostat controls to provide superior cooking
8. begin sparking at the pilot until the pilot is ignited or for 50 seconds an audible clicking sound will be evident After a total of 3 minutes the unit will lockout shutting off all gas although the spark igniter will continue to spark When the pilot is ignited the spark igniter will automatically stop and within 30 to 60 seconds main burner gas will come on if the thermostat is turned on New installations where there may be a considerable amount of air in the gas line may require the unit to be turned off and immediately back on numerous times after each 3 minute lockout period until the air is purged from the gas line B Shut Down 1 Standby a Turn power switch OFF 2 Complete a Turn power switch OFF b Turn dial on combination control from ON to black line depress knob slightly and continue rotating to OFF c Place thermostat on lowest setting d Turn any main gas service valves supplying gas to OFF C Relighting 1 Turn power switch ON It should be noted that the pilot and electronic ignition do not cycle with the thermostat A standing pilot is automatically established and monitored each time the power switch is turned on If the pilot is ever extinguished by a momentary external interruption the spark igniter will automatically relight it after a 2 minute and 10 second purge period without disturbing the cooking cycle unless lockout occurs OPERATION WARNING THE STEAM KETTLE AND ITS PARTS ARE HOT USE CARE
9. d a small amount of the liquid and stirto form athin paste Turnon the kettle and add the remainder of the liquid Continue per recipe instructions When browning meat bring the kettle up to temperature before adding This seals the juices in the meat 10 CLEANING WARNING DISCONNECT ELECTRICAL POWER BEFORE CLEANING Clean inside the kettle daily by wiping with a clean damp cloth Clean the exterior daily with soap and detergent and water Rinse thoroughly and wipe dry with a soft clean cloth Monthly Clean around burner air mixers louvered panels and pilots if grease or lint have accumulated SPECIAL CLEANING PROCEDURES Cleaning Stainless Steel To remove normal dirt grease or product residue from stainless steel use ordinary soap and water or detergent apply with a sponge or cloth Dry thoroughly with a clean cloth Never use vinegar or any corrosive cleaner To remove grease and food spatter or condensed vapors that have baked on the equipment apply cleanser to a damp cloth or sponge and rub cleanser on the metal in the direction of the polishing lines on the metal Rubbing cleanser as gently as possible in the direction of the polished lines will not mar the finish of the stainless steel NEVER RUB WITH A CIRCULAR MOTION Soil and burnt deposits which do not respond to this procedure can usually be removed by rubbing the surface with ScotchBrite scouring pads or stainless steel scouring pads Do not use ordinary stee
10. l wool or steel scouring pads as any particles left on the surface will rust and further spoil the appearance of the finish Never use awire brush metal scraper file or other steel tools Surfaces which are marred collect dirt more rapidly and become more difficult to clean Marring also increases the possibility of corrosive attack Refinishing may then be required Removing Heat Tint Darkened areas sometimes appear on stainless steel surfaces where the area has been subjected to excessive heat Heat tint can normally be removed by the stainless steel cleaning procedure however tint which does not respond to this procedure calls for a vigorous scouring in the direction of the polish lines using ScotchBrite scouring pads or a stainless steel scouring pad in combination with a powdered cleanser Heat tint action may be lessened by not applying or by reducing heat to equipment during slack periods All food contact surfaces must be thoroughly drained and flushed prior to cooking in the kettle Control Panel The textured control panel should be cleaned with a damp cloth moistened in warm soapy water Never use an abrasive cloth or steel wool Never use cleaning solvents with a hydrocarbon base Vent System At least twice a year the exhaust hood venting system should be examined and cleaned Tips for Efficient Operation Turn kettle off when not in use Limit preheat times Use the lid whenever possible Follow proper cleaning and
11. ls as required by your power supply voltage Connect ground wire to the ground lug Replace cover Three phase units are wired as above using only two supply wires The third supply wire is not connected and must be properly terminated PERFORMANCE CHECK The following items should be checked at installation by a qualified service technician 1 Verify correct gas type 2 Verify correct voltage cycle and phase 3 Gas pressure 4 Internal gas connections 5 Internal electrical connections 6 Pilots adjustment and ignition 7 Burners adjustment and ignition 8 Thermostat cycle for operation check 9 Gas supply valve check for operation 10 Check hinge and lid assembly 11 Draw off valve check operation 12 Advise user on cleaning procedures USING THE GAS CONTROL Kettles with Pilot Lights A Lighting 1 Turn thermostat to lowest position and turn the power switch OFF 2 Open control panel access door 3 Turn dial on combination control to pilot position NOTE Any gas service valves exterior to the unit should be open 4 Remove shield which fits over the burners for access to the pilot which is located on the right side of the left burner approximately 6 into the combustion chamber Depress dial on the combination control while lighting the pilot burner Hold dial in for 30 45 seconds until the pilot remains lit when the dial is released A lit taper is recommended for easy access in lighting the
12. maintainance procedures Operational Performance Check To bring 12 gallons of water from 60 F to 212 F starting the kettle from a cold start should take about 28 to 32 minutes SERVICE Contact your local Vulcan authorized servicer for any repairs or adjustments needed on this equipment 11 FORM 30909 1 95 PRINTED IN U S A
13. peration The installation of the appliance should not obstruct the flow of combustion and ventilation air Sufficient air should be allowed to enter the room to compensate for the amount of air removed by any ventilating system and for combustion of the gas burners Do not permit fans to blow directly on the appliance and avoid open windows at the sides or back Avoid wall type fans which create air cross currents within the room Do not obstruct the air flow into and around the appliance Do not obstruct the flow of flue gases from the flue duct located on the rear of the appliance It is recommended that the flue gases be ventilated to the outside of the building through a suitable and properly installed ventilation system LEVELING THE APPLIANCE To level the kettle use a spirit level in all directions on the top of the kettle with the lid up Units with legs adjust the bottom foot in each leg to overcome an uneven floor INSTALLATION CODES AND STANDARDS The steam kettle must be installed in the United States in accordance with 1 State and local codes 2 National Fuel Gas Code ANSI Z223 1 latest edition available from American Gas Association 1515 Wilson Boulevard Arlington VA 22209 and 3 National Electrical Code ANSI NFPA No 70 latest edition and with NFPA Standard 96 Vapor Removal from Cooking Equipment latest edition available from the National Fire Protection Association Batterymarch Park Quincy MA 02269 VENTI
14. ressure may be considerably less Water Level Sight Glass Indicates the minimum and maximum water level in the pressurized internal portion of the kettle If the water level falls below the minimum level contact your Vulcan authorized servicer Pressure Relief Valve This device is located inside and prevents the internal kettle pressure from exceeding 50 psig It should never be tampered with Draw Off Valve Allows you to empty the contents of the kettle into a suitable container USE CARE WHEN HANDLING HOT FOOD Soups with large chunks may need to be ladled DAILY OPERATION Daily operation should consist of turning on the power switch and setting the thermostat for the desired temperature It is recommenced the kettle be preheated empty prior to use Milk or egg based products should be placed in the kettle before heating however to prevent sticking The kettle is preheated when the cooking light goes off for the first time At the end of each day or if the kettle will not be used for some time shut the unit down by turning the power switch OFF Clean as required or on a daily basis Refer to Cleaning page 11 On standing pilot units the burner will ignite as soon as both the power switch and the thermostat are turned on On electronic ignition units turning on the power switch initiates a pilot lighting sequence For the first 2 minutes and 10 seconds nothing will happen After 2 minutes and 10 seconds the spa
15. rk igniter will begin sparking The spark igniter will spark until the pilot is ignited After a total of 3 minutes or 50 seconds after the spark igniter begins lockout will occur Lockout shuts down all pilot and main burner gas flow although the spark igniter will continue to spark The power switch must be turned off and back on to restart the pilot lighting sequence once lockout has occurred If the pilot blows out during operation the unit will go through the same sequence to re ignite itself Once the pilot is ignited another 15 to 45 seconds is required to heat the flame switch before main burner gas will flow if the thermostat is turned on OPERATOR TIPS For easier cleaning add cold water to the kettle immediately after removing contents When preparing foods containing vinegar or tomatoes or those which have a high salt content clean the kettle immediately after using to prevent pitting Do not use salt to clean the kettle This will scratch the surface If using saltwater to cook shellfish be sure to rinse and wash the kettle thoroughly Bring milk and egg products slowly up to temperature in a cold kettle to prevent product adhering to the sides When planning actual cooking capacity allow room at top for stirring without spilling When preparing milk based products do not preheat the kettle This will prevent the milk from sticking to the sides When preparing puddings from a mix place the powder in a cold kettle ad
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