Crown GL-30 User manual
MANUAL 10156 REV 3 (08/22)
$21.00
GAS KETTLE
MANUAL SECTION CO
IMPORTANT FOR FUTURE REFERENCE
Please complete this information and retain this
manual for the life of the equipment:
Model #:
___________________________
Serial #:
___________________________
Date Purchased:
_____________________
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.
CROWN FOOD SERVICE EQUIPMENT
A Middleby Company
70 Oakdale Road, Downsview (Toronto) Ontario, Canada, M3N 1V9
Telephone: 919-762-1000 www.crownsteamgroup.com
Gas Kettles
GL-30
Installation & Operation Manual
Model GL-30
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
PAGE 2 OF 32
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SAFETY PRECAUTIONS
Before installing and operating this equipment, be sure everyone involved in its operation is fully trained and aware of
precautions. Accidents and problems can be caused by failure to follow fundamental rules and precautions.
The following symbols, found throughout this manual, alert you to potentially dangerous conditions to the operator,
service personnel, or to the equipment.
CAUTION
WARNING
NOTICE
This symbol warns of immediate hazards that will result in severe injury or death.
This symbol refers to a potential hazard or unsafe practice that could result in injury or death.
This symbol refers to a potential hazard or unsafe practice that could result in injury, product
damage, or property damage.
This symbol refers to information that needs special attention or must be fully
understood, even though not dangerous.
DANGER
WARNING
Improper installation, operation, adjustment, alteration, service or maintenance can cause property damage, injury
or death. Read the installation, operating and maintenance instructions thoroughly before installing, operating or
servicing this equipment.
NOTICE
This manual should be retained for future reference.
NOTICE
This product is intended for commercial use only. NOT FOR HOUSEHOLD USE.
Copyright © 2021 by Crown. All rights reserved. Published in the United States of America.
IMPORTANT NOTES FOR INSTALLATION AND OPERATION
WARNING
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
WARNING
FOR YOUR SAFETY:
PURCHASER: Instructions to be followed in the event the operator of this appliance smells gas must be posted
in a prominent location. This information shall be obtained by consulting the local gas supplier.
DO NOT attempt to operate this unit in the event of a power failure.
Keep the appliance area free and clear from combustibles.
DO NOT
Adequate clearances MUST be maintained for servicing and proper operation.
Contact the factory, the factory representative or a local service company to perform maintenance and repairs
should the appliance malfunction. Refer to warranty terms.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 3 OF32
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RETAIN THIS MANUAL FOR FUTURE REFERENCE.
Table of Contents
Important Notes For Installation and Operation.................................................................... 2
Service Connections............................................................................................................. 4
Installation............................................................................................................................. 5
Performance Check .............................................................................................................. 8
Operation .............................................................................................................................. 9
Maintenance ......................................................................................................................... 12
Service.................................................................................................................................. 16
Troubleshooting .................................................................................................................... 19
Appendix A, Material Safety Data Sheet............................................................................... 20
TC
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
PAGE 4 OF 32
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GAS CHARACTERISTICS
DIMENSIONS
SPECIFICATIONS
BTU/HR. kW/HR.
GL-30 100,000 29.3 Natural
6”-14” (152-356 mm)
Propane
11”-14” (279-356 mm)
GL-30 575 lbs. [261 kg] SIDES
BACK
6” [152 mm]
2” [51 mm]
* For use on non-combustible floors only.
SERVICE CONNECTIONS
– GAS CONNECTION: Supply gas through 1” pipe.
8’ cord and 3 prong plug. Maximum 2.0 amps.
A B C D E F G H J K
GL-30 30 gallons
(114 liters)
in
(mm)
26”
(660)
35.5”
(902)
39.5”
(1003)
17.75”
(451)
40.38”
(1026)
19.75”
(502)
72.5
(1842)
34.75”
(883)
34.88”
(886)
6.25”
(159)
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 5 OF32
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UNPACKING
IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
Immediately after unpacking the unit, check for possible shipping damage. If the unit is found to be damaged, save the
packaging material and contact the carrier within 15 days of delivery.
Prior to installation, verify that the type of gas supply (natural or propane) and electrical service agree with the
contact your dealer immediately.
I
I C S
Installation must conform with local codes, or in the absence of local codes, with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1, as applicable.
1. The appliance and its individual shut off valve must be disconnected from the gas supply piping system during
any pressure testing of that system at pressures in excess of 1/2 psi (3.5 kPa).
during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).
Electrical grounding must be provided in accordance with local codes, or in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.2, as applicable.
The electrical diagram is located on the inside of the console control cover
EXHAUST FANS AND CANOPIES: Canopies are set over ranges, ovens and kettles for ventilation purposes.
It is recommended that a canopy extend 6” past appliance and be located 7.5 feet from the floor. Filters should
be installed at an angle of 45 degrees or more with the horizontal. This position prevents dripping of grease and
facilitates collecting the run-off grease in a drip pan, usually installed with the filter. A strong exhaust fan tends to
create a vacuum in the room and may interfere with burner performance or may extinguish pilot flames. Makeup
air openings approximately equal to the fan area will relieve such vacuum. In case of unsatisfactory performance
on any appliance, check operation with exhaust fan in the “OFF” position.
WALL EXHAUST FAN: The exhaust fan should be installed at least 2 feet above the vent opening at the top of the unit.
CLEARANCES: Adequate clearance must be provided in aisle and at the side and back. Adequate clearances for
air openings into the combustion chamber must be provided, as well as for serviceability.
SIDES 6 INCHES
BACK 2 INCHES AT FLUE BOX
FLOORS 6 INCH LEGS
Provisions for an adequate air supply must also be provided. Do not obstruct the lower front or right side of the unit,
as combustion air enters through these areas. The bottom of the control area must also remain unobstructed.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
PAGE 6 OF 32
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WARNING
All connections must be checked for leaks, after the unit has been put in operation. Use soapy water only for
TI
1. Uncrate carefully. Report any hidden freight damage to the freight company immediately.
2. Set the unit in place. Be certain to maintain minimum clearances as stated above.
3. To level the unit use a spirit level in all directions on the top of the kettle (lid up).
b. Units with casters - loosen the locking nuts, turn casters in or out as required and tighten locking nuts.
4. Be certain to leave adequate clearances for cleaning, maintenance and service.
5. The pressure relief valve is located at the left rear of the unit. This area should be kept clear and should not be
must vent to the atmosphere.
6. Check the pressure gauge on the front panel before operating. If the pressure gauge does not indicate green vacuum
zone (below 0 psi), see “Re-establishing Vacuum” section under SERVICE, after completing installation instructions.
The serial plate on the lower right side of the unit 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 unit is equipped with an internal pressure regulator which is set for
4” W.C. manifold pressure for natural gas and 10” W.C. for propane gas. Use 1/8” pipe tap on the burner manifold for checking
pressure.
An adequate gas supply is imperative. Undersized or low pressure lines will restrict the volume of gas required for satisfactory
performance. A steady pressure, minimum 6” W.C. for natural gas and minimum 11” 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
Contact your gas company for correct supply line sizes.
Purge the supply line to clean out any dust, dirt, or other foreign matter before connecting the line to the unit. It is recommended
for use with LP gas on all threaded connections. Test pipe connections thoroughly for gas leaks.
NOTICE
INSTALLATION
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 7 OF32
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WARNING
For an appliance equipped with casters, the installation shall be made with a connector that complies with the
standard for connectors for moveable gas appliances, ANSI Z21.69-CSA 6.16 and a quick-disconnect device that
complies with the standard for quick-disconnect devices for use with gas fuel, ANSI Z21.41-CSA 6.9; adequate
means must be provided to limit the movement of the appliance without depending on the connector and the quick
disconnect device or its associated piping to limit the appliance movement; the location where the restraining
means may be attached to the appliance is on bottom of unit directly below relief valve.
a quick disconnect and strain relief.
W C
Units with dual (hot and cold) valves must have the hot water line connected to 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.
WARNING
ELECTRICAL GROUNDING INSTRUCTIONS
This appliance is equipped with a three-prong (grounding) plug for your protection against shock hazard
and should be plugged directly into a properly grounded three-prong receptacle. Do not cut or remove the
grounding prong from this plug. (120V units only).
E C
1. 120 VAC - 60 Hz - Single Phase
120V, three-prong grounded receptacle. A separate 15 amp supply is needed for each unit.
2. 208/240 VAC - 60 Hz - Single and Three Phase
Units with this electrical rating are factory equipped with a transformer. To connect supply wires remove cover from
transformer box at right rear of unit. Route supply wires and ground wire through the hole in the cover with a strain relief
wire to 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.
3. 220 VAC - 50 Hz - Single Phase.
Units equipped with this voltage rating should be wired exactly as in (2) above.
WARNING
Do not connect the appliance to the electrical supply until after the gas connection has been made.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
PAGE 8 OF 32
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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. Supply valve - check for operation.
10. Check hinge and lid assembly.
12. Advise user on cleaning procedures.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 9 OF32
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O
NOTICE
Contact the factory, the factory representative or a local service company to perform maintenance and repairs
should the appliance malfunction.
WARNING
In the event of main burner ignition failure, a 5 minute purge period must be observed prior
to re-establishing ignition source.
CAUTION
WARNING
local gas company or gas supplier for service.
G C I
1. Turn thermostat to “OFF” position and power switch to “OFF” position.
2. Open control panel access door located on right side at bottom.
3. Turn dial on combination control to “PILOT” position by rotating
knob counterclockwise. NOTE: Any gas service valves exterior to
the unit should be open.
4. Lift the shutter (see Fig. 1) on the heat shield to gain access
to the pilot burner, which is located on the right side of the left
burner, approximately 6 inches into the combustion chamber.
5. Depress the dial on the combination gas control while lighting the
pilot burner. Hold the dial in for 30 to 45 seconds until the pilot
remains lit. Release the dial. Pilot should remain lit.
NOTE: A lit taper, long wooden match or barbecue lighter is
recommended for easy access in the lighting of the pilot burner.
6. Turn dial on combination gas control to “ON.”
Figure 1
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
PAGE 10 OF 32
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1. Turn combination control to “PILOT” position.
1. Place power on switch and thermostat to “OFF” position.
2. Turn dial on combination control from “ON” position to “OFF” position.
3. Turn any main gas service valves supplying gas to “OFF” position.
3. Repeat the “LIGHTING” instructions in “START UP” section.
POWER SWITCH: .............................. This switch turns the main power to the unit on and off. It must be turned
on to heat the kettle. It should be turned off when the kettle will not be in
use for long periods.
COOKING LIGHT (RED): .................... This light is on whenever the main burner gas is on. This light may be on without
the burners being on if the pilot is extinguished. See lighting instructions.
LOW WATER LIGHT (AMBER): .......... All kettles are supplied with sufficient distilled water in 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. See “Adding
Water” section of service instructions.
THERMOSTAT:................................... The thermostat selects the desired internal kettle operating temperature.
PRESSURE GAUGE:.......................... The pressure gauge indicates the internal operating pressure of the kettle.
When cold, the gauge should be in the green vacuum zone. If it is not,
refer to “Re-establishing Vacuum” section of service instructions. Under
normal operation with the kettle empty (thermostat set at 275 degrees
Fahrenheit) the pressure shall reach 30 psi. When loaded the pressure
may be considerably less.
SIGHT GLASS:................................... The sight glass indicates the minimum and maximum water level within the
kettle. If water level falls below minimum level more distilled water should
be added. See “Adding Water” section of service instructions.
PRESSURE RELIEF VALVE:............... The pressure relief valve is a safety device which prevents the internal kettle
pressure from ever exceeding 50 psi. It should never be tampered with.
OPERATION
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 11 OF32
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D O
Daily operation should consist of turning on the power switch and setting the thermostat for the desired temperature.
It is recommended the kettle be preheated prior to use. Milk or egg based products should be placed in the kettle
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
to OFF.
Clean as required or on a daily basis. See “Cleaning” section under MAINTENANCE.
Appliances equipped with casters have been installed with a restraint to limit their movement to prevent damage to
the gas supply connecting system. If disconnection of this restraint is necessary to move the appliance for cleaning,
etc., reconnect it when the appliance is moved to its originally installed position.
E U T
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.
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 puddings from a mix, place the powder in a cold kettle, add a small amount of the liquid, and stir to form a
thin paste. Turn on the kettle and add the remainder of the liquid. Continue as per recipe instructions.
When browning meat bring the kettle up to temperature before adding. This seals in the juices in the meat.
At least twice a year the unit venting system should be examined and cleaned.
G S T
Use these reminders to help develop energy-saving procedures and habits. Using less natural or propane gas saves
energy as well as money.
2. Limit preheat times.
3. Use lid when possible.
4. Maintain equipment.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
PAGE 12 OF 32
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WARNING
Disconnect the power supply to the appliance before cleaning or servicing.
NOTICE
Contact the factory, the factory representative or a local service company to perform maintenance and repairs.
D
1. Wash exposed cleanable areas.
1. Clean around burner air mixers, louvered panels and pilots if grease or lint have accumulated.
TY ()
Have an authorized service person clean and adjust the unit for maximum performance.
It is NOT RECOMMENDED to use cleaning agents that are corrosive.
Use of cleaning agents that contain chloride, acids or salts are corrosive and may cause pitting and corrosion when used
over a period of time; this will reduce life of the appliance.
Should pitting or corrosion occur this is not covered by warranty.
Follow the recommended cleaning instructions. Use a mild detergent, warm water and rinse thoroughly.
Never spray water into electric controls.
NOTICE
rubber to pull away from stem and permanently damage it. This is not covered under warranty.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 13 OF32
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completely disengaged from the threads. Grasp the valve knob and slowly pull out the valve stem and disk. Do not
allow the disk to come in contact with hard surfaces as it can be damaged and cause valve leakage. Wash the valve
tube. Brush vigorously.
2. Replace the valve stem assembly and turn the hex nut until snug. Rinse the kettle with clean warm water.
NOTICE
rubber to pull away from stem and permanently damage it. This is not covered under warranty.
C
WARNING
Disconnect the power supply to the appliance before cleaning or servicing.
the kettle has cooled enough to touch it.
1. Rinse the inside of the kettle thoroughly and drain to remove any food particles.
2. Using a nylon brush, clean the kettle with a mild detergent and water. Never use steel wool or scouring powder as it
will scratch stainless steel. Plain steel wool can leave small pieces of steel which can rust.
valve, depending on model, to allow the detergent and water solution to drain.
4. Wipe the exterior of the kettle with a clean, damp cloth.
WARNING
Never spray water into electric controls or components!
CAUTION
Do not use cleaning agents that are corrosive.
CAUTION
The equipment and its parts are hot. Use care when operating, cleaning and servicing.
WARNING
If you are cleaning a valve that is assembled to a kettle, be sure the kettle is completely empty of any product.
D-O V C
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
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CAUTION
Improper use of this procedure may damage your appliance!
D D-O V C
important to use both hands because the plug is heavy.
2. Put the plug in a plastic pail that contains a mild soap solution. A plastic pail works best, as it reduces the possibility of
nicking or scratching the plug. If the plug gets scratched it may not seal correctly and could leak.
3. Use a soft cloth or soft brush and clean all surfaces.
4. Using both hands remove the valve from the soap and rinse well in another plastic pail that contains fresh water.
5. Wash out the kettle as normal.
6. Once the kettle is washed out, return the plug into the body. Be sure the plug is inserted into the notch and turned.
Ensure the plug is tight and secure before letting go of it.
plug, follow the same instructions for washing the body. Always use both hands when handling the plugs. Reassemble the
plug into the body and use as normal.
W D S R A
Metal utensils should never be used as they will scratch the surface of the equipment and rust may begin to form. To
remove surface accumulation of rust from the inadvertent use of such utensils, the following procedure may be used.
stain. The appliance should not be heated and remain at room temperature during the entire cleaning process.
2. If the stain resists removal, additional exposure time with vinegar may be required, to a maximum of one hour.
3. Thoroughly wash all of the vinegar away with fresh clear water. Dry the surface completely and allow one hour before
using the appliance to cook.
Following daily and period maintenance procedures will prolong the life for your equipment. Climatic conditions - salt air -
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 15 OF32
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S S
To remove normal dirt, grease or product residue from stainless steel, use ordinary soap and water (with or
without detergent) applied with a sponge or cloth. Dry thoroughly with a clean cloth. Never use vinegar or any
other corrosive cleaner.
To remove grease and food splatters or condensed vapours 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. 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 burn deposits which do not respond to the above procedure can usually be removed by rubbing the
surface with SCOTCH-BRITE™ scouring pads or STAINLESS scouring pads. DO NOT USE ORDINARY STEEL
WOOL as any particles left on the surface will rust and further spoil the appearance of the finish. NEVER USE A
WIRE BRUSH, STEEL SCOURING PADS (EXCEPT STAINLESS), 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.
TO REMOVE HEAT TINT: Darkened areas sometimes appear on stainless steel surfaces where the area has
been subjected to excessive heat. These darkened areas are caused by thickening of the protective surface of
the stainless steel and is not harmful. Heat tint can normally be removed by the foregoing, but tint which does not
respond to this procedure calls for a vigorous scouring in the direction of the polish lines using SCOTCH-BRITE™
scouring pads or a STAINLESS 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 warm water and mild soap. Never use an
abrasive cloth or steel wool. Never use cleaning solvents with a hydrocarbon base.
CAUTION
Under normal operating conditions a “try lever test” should be performed every two months. Under severe service
conditions, or if corrosion and/or deposits are noticed within the valve body, testing must be performed more often.
A “try lever test” should also be performed at the end of any non-service period.
CAUTION
High sound levels may be experienced during “try lever” test.
Wear proper safety equipment and exercise extreme care!
the valve seat free of sediment and debris. Then release lever and allow the valve to snap shut.
CAUTION
Care must be taken to avoid any bodily contact.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
PAGE 16 OF 32
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was supplied. This can be done by examining the serial plate on the lower right side of the unit. It will list the gas type and
voltage for which the unit was manufactured.
UNIT TOTAL INPUT
ORIFICE SIZE
NATURAL PROPANE
GL-30 100,000 BTU/Hour 29 44
M P
Natural Gas - 4 inches W.C. LP Gas - 10 inches W.C.
GL-30 .026 IN. .014 IN.
Pilot adjustment is part of the combination control valve located in the low front access door. It is located just to the left of
the pilot tube on the inlet (top) side of the gas valve. Remove the large screw on the top left side of the pilot tube outlet.
Below the screw is a slotted adjustment screw.
The front burner shield may be removed to light the pilot, should pilot ignition not be successful through shutter opening.
Replace the safety shield and screw into place after adjustment has been completed.
WARNING
Disconnect the power supply to the appliance before cleaning or servicing.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 17 OF32
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The gas pressure regulator is an integral part of the combination gas control located just behind the lower front access
door. The pressure regulator adjustment is on the lower right side of the gas control. The large slotted cap must be
removed to access the adjustment screw.
To check the manifold pressure a pressure gauge (manometer) must be connected to the 1/8” NPT pressure tap
appropriate for your instrument.
1. Turn the unit on; with main burners on, read the manifold pressure. The pressure should be 4 inches water
column (W.C.) (±) .2 inches W.C. for natural gas or 10 inches W.C. for propane gas. Adjust the pressure
type and manifold pressure for your unit.
1/8” NPT plug in manifold. Replace regulator cap and close access door.
T
The thermostat adjustment should not be changed. Check the following before changing the thermostat:
1. With kettle cool, the pressure reading on the pressure gauge should be in the green vacuum zone (below 0 psi). If not,
see “Re-establishing Vacuum” section.
2. Check that the pressure switch is not set too high or too low and causing the out of adjustment condition. A voltmeter
should be used by a properly trained serviceman to determine if the pressure switch or thermostat is actually cycling
the burners. If the pressure switch is found to be the problem, see “Pressure Switch” section.
After verifying that the pressure switch is set and operating properly, the thermostat may be adjusted using the set screw
decrease pressure and counterclockwise to increase pressure.
P S
switch set too high).
2. Burners are being shut down by pressure switch, not the thermostat. (Pressure switch set too low.)
The pressure switch is preset for proper operation from the factory. It is adjusted to the maximum pressure, however
to variations in the pressure relief valves. During preheat to the maximum thermostat setting (275 degrees Fahrenheit)
and shut down the burners by the pressure switch. This is normal, however, after the kettle cycles several times (empty)
the thermostat will begin cycling the unit.
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
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A P S
1. To obtain access to the pressure switch, the front panel must be removed. Remove the screws on either side of the
panel. Be sure to support the panel to avoid excessive strain on the wiring.
2. To increase the pressure setting turn the white ribbed knob clockwise; to decrease the pressure, turn it
counterclockwise. Use the centre of the black ring as an indicator.
3. With the kettle empty and completely cold, bypass the thermostat by moving the single terminal side wire to the
double terminal side connector on the thermostat. Turn kettle on.
4. Pressure in kettle (read pressure gauge on front panel) should reach a maximum of 35 psi and pressure relief valve
should not open. Kettle pressure may rise 3 or 4 psi even after burners shut down.
5. Relief valve should not open when kettle pressure is 40 psi; pressure switch setting is satisfactory.
6. If relief valve opens, reduce setting on pressure switch, cool kettle completely by running cold water through it and
repeat steps 3 - 6.
by running cold water through it and repeat steps 3 - 7.
8. When adjustment is complete, move wire from shorted terminal on the thermostat back to the appropriate terminal
and replace the front panel.
A W
It may be necessary to replenish water in the jacket when the low water indicator comes on. Do so as follows:
2. Total amount of distilled water contained in jacket is 6 gallons, 110 ounces. Amount of water to be added in a low
3. Lift handle of pressure relief valve to release vacuum in kettle. (Relief valve is at left rear of kettle.)
4. Remove air vent nut on the elbow located at the rear left of the unit.
5. Using pure distilled water only, pour the water into the opening. (A funnel will be helpful.) Water will enter the kettle
slowly, as air must escape through the same hole. Water should be added until water level at the sight glass is half
way between the minimum and maximum levels.
compound suitable for steam at 50 psi.
7. Vacuum must be re-established. (See Re-establishing Vacuum.)
R-E V
With the kettle completely cold a vacuum of 25 to 30 inches mercury column (M.C.) should be maintained as indicated
in the green zone on the pressure gauge on the front control panel. If at any time the vacuum is not in the green zone,
vacuum should be re-established.
air vent nut one (1) full turn for 20 seconds and then close and tighten the nut. This should remove the air and any loss in
performance should return.
Should the kettle fail to maintain a vacuum after repeated attempts to establish it, further checks should be made to see
if the pressure relief valve is leaking or if there are any leaks in the pressure relief valve piping, copper lines going to the
The control circuit is protected by a 3 amp. fuse which is located inside control panel, top right side above transformer.
Should the unit fail to turn on, check this fuse by removing it and either replacing it or testing it with a continuity tester. If
the fuse is good, check the main power circuit breaker, which should be external to the kettle.
S
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22) PAGE 19 OF32
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T
Unit will not come on.
Unit not plugged in.
Fuse in unit blown.
Unit will turn on electrically
but will not heat.
Thermostat not on.
Bad main gas solenoid.
Bad pressure switch.
Piolet out.
Bad thermostat.
Low water.
Excessive ame rollout on
ignition, carboning.
Natural gas unit on propane.
Excessive gas pressure.
Unit slow to preheat and slow
to recover.
Propane gas on natural.
Low gas pressure.
Faulty regulator in gas control.
Loss of vacuum.
Pilot continuously blows out
Pilot gas adjusted too low.
Excessive draft condition.
Excessive steam around bottom of unit during operation or
cleaning.
Bad thermocouple.
Bad gas control.
Loose thermocouple connection.
Thermocouple not mounted to pilot correctly.
Pilot will not light
Gas control valve not on pilot position.
Bad thermocouple.
Bad main gas control.
NOTICE
Loose, broken or grounded wiring may cause many of the symptoms listed.
Check all wiring and make sure it is intact.
T
INSTALLATION & OPERATION MANUAL 10156 REV 3 (08/22)
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G K
A ‘A’
M S D S
Table of contents
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