CROWN GLT-80 Steam Tilting Kettle Gas User Manual
- June 9, 2024
- CROWN
Table of Contents
GLT-80 Steam Tilting Kettle Gas
Product Information:
The Gas Fired Steam Tilting Kettles GLT-80 and GLT-100 are
commercial kitchen equipment designed for cooking large quantities
of food. The GLT-80 model is specifically designed to hold 80
gallons of food while the GLT-100 model can hold up to 100 gallons.
These kettles use gas-fired steam to cook food, and they come with
a tilting mechanism that allows for easy pouring and transfer of
food.
Specifications:
-
Model: GLT-80
-
Serial #: ___
-
Date Purchased: _____
-
Manufacturer: Crown Food Service Equipment, A Middleby
Company -
Address: 70 Oakdale Road, Downsview (Toronto) Ontario, Canada,
M3N 1V9 -
Telephone: 919-762-1000
Safety Precautions:
Before installing and operating this equipment, it is important
to read and understand the safety precautions outlined in the
manual to avoid accidents and problems. The manual contains symbols
that alert users to potentially dangerous conditions and hazards to
the operator, service personnel, or equipment. Failure to follow
fundamental rules and precautions can cause injury, product damage,
or property damage.
Product Usage Instructions:
-
Ensure that all personnel involved in operating the equipment
are fully trained and aware of safety precautions. -
Do not store or use gasoline or other flammable vapors or
liquids in the vicinity of this or any other appliance. -
Read the installation, operating, and maintenance instructions
thoroughly before installing or servicing the equipment. -
Ensure that the appliance area is free and clear from
combustibles. -
Do not obstruct the flow of combustion and ventilation air.
Adequate clearances MUST be maintained for servicing and proper
operation. -
In the event of a power failure, do not attempt to operate the
unit. -
Follow instructions to be posted in a prominent location in the
event the operator smells gas. This information can be obtained by
consulting the local gas supplier. -
Do not use this product for household use. It is intended for
commercial use only. -
Retain the manual for future reference.
-
Contact the factory, factory representative, or a local service
company to perform maintenance and repairs should the appliance
malfunction. Refer to warranty terms.
Installation & Operation Manual
IMPORTANT FOR FUTURE REFERENCE Please complete this information and retain
this manual for the life of the equipment:
Model #: Serial #:
Date Purchased: _____
Gas Fired Steam Tilting Kettles GLT-80 and GLT-100
Model GLT-80
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
MANUAL 10325 REV 1 (11/21) $21.00
GAS FIRED STEAM TILTING KETTLES MANUAL SECTION CO
SPECIFICATIONS
Gas Fired Steam Tilting Kettles
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.
DANGER This symbol warns of immediate hazards that will result in severe injury or death.
WARNING This symbol refers to a potential hazard or unsafe practice that could result in injury or death.
CAUTION NOTICE
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.
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: Do not store or use gasoline or other flammable vapors or
liquids in the vicinity of this or any other appliance.
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 product is intended for commercial use only. NOT FOR HOUSEHOLD USE.
NOTICE
This manual should be retained for future reference.
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 obstruct the flow of combustion and ventilation air. 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.
Copyright © 2021 by Crown. All rights reserved. Published in the United States of America.
PAGE 2 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
RETAIN THIS MANUAL FOR FUTURE REFERENCE.
Table of Contents
Table of Contents
Important Notes For Installation and Operation ………………………………………………………….. 2
Service Connections ………………………………………………………………………………………………. 4
Installation…………………………………………………………………………………………………………….. 5 Performance Check
……………………………………………………………………………………………….. 8 Operation
……………………………………………………………………………………………………………… 9 Maintenance
…………………………………………………………………………………………………………. 12
Cleaning……………………………………………………………………………………………………………….. 13 Service
…………………………………………………………………………………………………………………. 15 Troubleshooting
…………………………………………………………………………………………………….. 20 Appendix A, Material Safety Data
Sheet……………………………………………………………………. 21
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 3 OF32
SERVICE CONNECTIONS
Service Connections
60.87 [1456] 4.26 [108]
10.76 [273] 5.38 [137]
Gas Fired Steam Tilting Kettles
- Use on non-combustible floors only.
FLANGED FEET DETAIL Ø7/16″ [11mm] HOLES ON 2.835″ [72mm] B.C.
43.81 [1113] 30.81 [782]
54.55 [1386]
21.48 [546]
3″ DRAW-OFF VALVE
26.30 [668]
OPTIONAL FAUCET
E 6.50 [165] A D
7.91 [201]
22.62 [575] 39.00 [991]
43.83 [1113] 16.83 [428]
POWER
OFF
ON
COOKING
LOW WATER COOK TEMP.
OFF
32 1
10 9 8 7
65 4
20
PRESSURE
40 60
200 300 400 316 SS
100 TUBE AND 500 CONNECTION
0
600
kPa psi 100
VENT AIR
80
WATER LEVEL
CH
C H 31.00 [787.4]
IN [mm]
35.63 [905]
C
B
8971R0
SERVICE CONNECTIONS
GAS CONNECTION: Supply Gas through 3/4″ pipe. A gas shut off valve must be
installed in supply piping convenient and adjacent to appliance. ELECTRICAL
CONNECTION : Unless otherwise specified, field wire electrical connection to
be 120 volts, 60 Hz, 1 phase with grounding wire. Unit
furnished with 8′ cord and 3 prong plug. Total maximum amps 4.0. COLD WATER:
3/8″ (10 mm) tubing to faucet (optional) HOT WATER: 3/8″ (10 mm) tubing to
faucet (optional)
DIMENSIONS
Model
Capacity
Units
A
B
C
D
E
Shipping Weight
GLT-80
80 gallons (302.8 liters)
in (mm)
45.18″ (1147)
52.0″ (1321)
22.0″ (559)
89.63″ (2277)
25.38″ (645)
1253 lbs. [569 kg]
GLT-100
30 gallons (378.5 liters)
in (mm)
49.8″ 54.5″ (1265) (1383)
23.5″ (597)
92.6″ (2353)
30″ (762)
1403 lbs. [637 kg]
Minimum Clearance
SIDES BACK
0″ [0 mm] 4″ [102 mm]
Model
BTU/HR.
GAS CHARACTERISTICS
kW/HR.
Gas Supply
Supply Pipe Pressure (W.C.)
GLT-80/100
150,000
44.0
Natural 6″-14″ (152-356 mm)
Propane 11″-14″ (279-356 mm)
- For use on non-combustible floors only.
PAGE 4 OF 32
As continued product improvement is a policy of Crown, specifications are subject to changge without notice. INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
INSTALLATION
Installation
UNPACKING
IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
Immediately after unpacking the steamer, check for possible shipping damage.
If the steamer 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 specifications on the rating plate
located on the left side panel as you face the front of the braising pan. If
the supply and equipment requirements do not agree, contact your dealer
immediately.
Installation Codes and Standards
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 ½ psi (3.5 kPa).
2. The appliance must be isolated from the gas supply piping system by
closing its individual manual shut off valve during any pressure testing of
the gas supply piping system at test pressures equal to or less than ½ 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 BACK FLOORS
0 INCHES 4 INCHES AT FLUE BOX
NON-COMBUSTIBLE
All units must be installed in such a manner that the flow of combustion and
ventilation air are not obstructed. 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.
Information on the construction and installation of ventilating hoods may be obtained from the standard for “Vapor Removal from Cooking Equipment”, NFPA No. 96 (latest edition), available from the National Fire Protection Association, Batterymarch Park, Quincy, MA, USA, 02269.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 5 OF32
INSTALLATION
Gas Fired Steam Tilting Kettles
To Install
1. Uncrate carefully. Report any hidden freight damage to the freight company
immediately.
2. 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.
3. Set the unit in place. Be certain to maintain minimum clearances as stated
above.
4. To level the unit use a spirit level in all directions on the top of the
kettle (lid up). Adjust the bottom foot on each leg to overcome an uneven
floor.
5. Mark hole locations on floor through anchoring holes provided in flanged
adjustable feet. 6. Remove appliance and drill holes in locations marked on
floor and insert proper anchoring devices. 7. Set unit back in position and
re-level left to right and front to back.
8. Bolt and anchor appliances securely to the floor. 9. Seal bolts and
flanged feet with silastic or equivalent compound. 10. Appliance location must
allow air supply to unit and obstruction free clearance for air opening into
the combustion chamber.
11. Make service connections as indicated.
12. 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.
GAS CONNECTION
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 3/4″ 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
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 other foreign matter before connecting the line to the unit. It is
recommended that an individual manual shut off valve be installed in the gas
supply line to the unit. Use pipe joint compound which is suitable for use
with LP gas on all threaded connections. Test pipe connections thoroughly for
gas leaks.
WARNING
All connections must be checked for leaks, after the unit has been put in
operation. Use soapy water only for testing on all gases. Never use an open
flame to check for gas leaks.
NOTICE
If applicable, the vent line from the gas appliance pressure regulator shall
be installed to the outdoors in accordance 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.
NOTICE
If this equipment is being installed at over 2,000 feet altitude and was not
so specified on order, contact service department. Failure to install with
proper orifice sizing may void the warranty.
PAGE 6 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
INSTALLATION
Water Connection
On units equipped with an optional water fill valve connect a water line
(minimum 1/4″) to the valve with a 1/4″ NPT female fitting. 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.
Electrical Connection
WARNING
Do not connect the appliance to the electrical supply until after the gas
connection has been made.
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).
1. 120 VAC – 60 Hz – Single Phase Units with this electrical rating are
factory supplied with a three-wire cord and three-prong plug which fits any
standard 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 fitting.
Connect wires to the primary transformer terminals as required by your power
supply voltage. Connect ground 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 (Step 2) above.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 7 OF32
Performance Check
Performance Check
Gas Fired Steam Tilting Kettles
The following items should be checked before or within the first 30 days of operation 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. Supply valve – check for operation. 10. Check hinge and lid assembly. 11. Draw-off valve – check operation. 12. Advise user on cleaning procedures. 13. Tilt Mechanism – make sure the unit is levelled in all directions and anchored to the floor. See page 6.
PAGE 8 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Operation
OPERATION
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 you smell gas, shut down equipment at the main shut off valve and
contact the local gas company or gas supplier for service.
WARNING
In the event of main burner ignition failure, a 5 minute purge period must be
observed prior to re-establishing ignition source.
CAUTION
If you smell gas during the lighting procedure, immediately shut off the gas
supply until the leak has been corrected.
Gas Control Instructions
Appliance does not require “Lighting” the pilot with a flame.
Start-Up
1. Turn thermostat to “OFF” position and main power switch to “OFF” position.
2. Open control panel access door located on right side at bottom.
3. Turn dial on gas combination control valve to “ON” position by rotating
control knob counterclockwise. (NOTE: Any gas service valves exterior to the
unit should be open.)
4. Turn main power switch to “ON” position.
5. Set “COOK TEMP” to desired setting. The red “COOKING” pilot will be on
until desired setting has been reached.
6. At this time the spark igniter will begin sparking at the pilot until the
pilot is ignited, or for ninety seconds (an audible clicking sound will be
evident).
7. When the pilot is ignited the spark igniter will automatically stop and
within 15 seconds main burner gas will come on. If ignition does not occur,
after a total of ninety seconds, the unit will lockout, shutting off all gas
although the spark igniter will continue to spark. 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
lockout period until the air is purged from the gas line.
Shutdown
A. Standby
1. Place main power switch and thermostat to “OFF” position.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 9 OF32
OPERATION
Gas Fired Steam Tilting Kettles
B. Complete
1. Place main power switch and thermostat to “OFF” position. 2. Turn dial on
gas combination control valve from “ON” position to “OFF” position. 3. Turn
any main gas service valves supplying gas to “OFF” position.
C. Relighting
1. Turn main power switch to “ON” position.
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 without disturbing the cooking cycle, unless lockout occurs.
Spark Igniter Failure
In the event the spark igniter module fails the unit may still be operated by
carefully following these instructions.
1. Turn thermostat to OFF position; completely counterclockwise.
2. Turn power switch to OFF position.
3. WAIT A MINIMUM OF 5 MINUTES BEFORE PROCEEDING.
4. Turn dial on combination control to ON position (if not already on).
5. Turn power switch to ON position.
6. Wait two minutes and ten seconds and then immediately light pilot with
long match or taper.
7. After 10 – 15 seconds gas valve will allow main burner gas to flow when
thermostat is turned on. 8. The pilot will now stay ignited as long as the
power switch remains ON. If power switch is turned OFF, repeat
the above instructions. It is intended that the unit be operated in this
manner only in emergency situations and only while it is attended. (Do not
leave pilot lit overnight; shut off power switch). A qualified serviceman must
be called promptly.
FRONT PANEL CONTROLS
MAIN 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.
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.
PAGE 10 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
OPERATION
Daily Operation
Daily operation should consist of turning on the main 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 before heating, however, to prevent
sticking. The kettle is preheated when the cooking light goes off 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 main power switch to OFF.
Clean as required or on a daily basis. See “Cleaning” section under
MAINTENANCE.
Turning on the main power switch initiates a pilot lighting sequence. The
spark igniter will begin sparking. The spark igniter will spark until the
pilot is ignited. After ninety seconds 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, main burner gas will flow when the thermostat is
turned on.
End Use 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 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.
VENT SYSTEM: At least twice a year the unit venting system should be examined
and cleaned.
Gas Saving Tips
Use these reminders to help develop energy-saving procedures and habits. Using
less natural or propane gas saves energy as well as money.
1. Turn off when not in use. 2. Limit preheat times. 3. Use lid when
possible. 4. Maintain equipment.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 11 OF32
Maintenance
Maintenance
Gas Fired Steam Tilting Kettles
NOTICE
Contact the factory, the factory representative or a local service company to
perform maintenance and repairs.
WARNING
Disconnect the power supply to the appliance before cleaning or servicing.
Daily
1. Wash exposed cleanable areas.
Monthly
1. Clean around burner air mixers, louvered panels and pilots if grease or
lint have accumulated.
Twice a Year (minimum)
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
Draw-off valve has a vulcanized rubber coated stem for better sealing. Do not
over tighten. This may cause the rubber to pull away from stem and permanently
damage it. This is not covered under warranty.
PAGE 12 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Cleaning
WARNING
Disconnect the power supply to the appliance before cleaning or servicing.
Cleaning
WARNING
Never spray water into electric controls or components!
WARNING
The equipment and its parts are hot. Use care when operating, cleaning and
servicing.
CAUTION
Do not use cleaning agents that are corrosive.
Your kettle should be cleaned immediately after each use or when cooking a
different product. Before cleaning, check that 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.
3. Rinse the inside of the kettle thoroughly with clean water. Drain the
kettle by tilting or through the tangent draw-off 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
If you are cleaning a valve that is assembled to a kettle, be sure the kettle
is completely empty of any product.
Draw-Off Valve Cleaning
1. If equipped with a tangent draw-off valve, turn the large hex nut on the
draw-off valve counterclockwise until it is 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 stem, disk and handle. Insert a nylon
brush, wet with detergent and water, into the valve body and tangent draw-off
tube. Brush vigorously.
2. Replace the valve stem assembly and turn the hex nut until snug. Rinse the
kettle with clean warm water.
3. Leave the draw-off valve open when the kettle is not in use.
Dairy Draw-Off Valve Cleaning
1. Remove the plug by first removing the handle, then turn the plug to line
up with the pin and pull with both hands. It is 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.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 13 OF32
Cleaning
Gas Fired Steam Tilting Kettles
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.
If you are cleaning a body and plug assembly, remove the plug and follow the
above procedures. When finished with the 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.
What to Do if Surface Rust Appears
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.
CAUTION
Improper use of this procedure may damage your appliance!
1. Use undiluted white vinegar with a non-abrasive scouring pad (plastic) or
cloth on the affected area to remove the rust 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 – may require more thorough and
frequent cleaning or the life of the equipment could be adversely affected.
Stainless Steel
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 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. 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-BRITETM 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-BRITETM 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.
PAGE 14 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Service
Service
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
Hot, high pressure fluid may be discharged from body drain and vent during
“try lever” test. Care must be taken to avoid any bodily contact.
CAUTION
High sound levels may be experienced during “try lever” test. Wear proper
safety equipment and exercise extreme care! Test at, or near, half of the
operating pressure by holding the test lever fully open for at least two
seconds to flush the valve seat free of sediment and debris. Then release
lever and permit the valve to snap shut.
If lift lever does not activate, or there is no evidence of discharge, turn
off equipment immediately and contact a licensed contractor or qualified
service personnel.
WARNING
Disconnect unit from power supply before cleaning or servicing appliance.
General
When any difficulty arises always check that the unit has been connected to
the gas supply type and voltage for which it 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.
Wiring diagrams for the unit are located in a small envelope affixed to the
side panel of left hand console.
UNIT
TOTAL INPUT
GLT-80 GLT-100
150,000 BTU/Hour 150,000 BTU/Hour
ORIFICE SIZE
NATURAL
PROPANE
30
45
30
45
Manifold Pressure
Natural Gas – 4 inches W.C. LP Gas – 10 inches W.C.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 15 OF32
Service
Gas Fired Steam Tilting Kettles
Adjustments
Pilots
The pilot adjustment is part of the combination control valve located just
behind the lower front access door. It is located on the centre left side of
the control just below the large slotted screw head. (See Figure 1). Remove
the large slotted screw; below this is a second slotted screw used for
adjustment of the pilot burner flame.
FIGURE 1
Top View of Gas Control
The front burner shield should be removed to see the pilot. The pilot should be adjusted as follows:
Adjust the Pilot Burner Flame
The pilot flame should envelop 3/8 to 1/2 inch [10 to 13 mm] of the igniter-
sensor tip. Refer to Figure 2. To adjust the pilot flame:
1. Remove the pilot adjustment cover screw. Refer to Figure 1.
2. Turn the inner adjustment screw clockwise to decrease or counterclockwise
to increase the pilot flame.
3. Always replace the cover screw after adjustment and tighten firmly to
ensure proper operation.
FIGURE 2
PILOT ORIFICE SIZES
Natural 0.018 IN.
Propane 0.010 IN.
GAS PRESSURE REGULATOR
Proper Flame Adjustment
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. (See Figure 1). 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 on the gas manifold. With the gas off, connect your pressure indicating instrument to the manifold with a fitting 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 regulator to obtain the appropriate pressure. Check serial plate on lower right side of unit to confirm exact gas type and manifold pressure for your unit.
When pressure has been correctly adjusted turn unit off. Remove pressure indicating instrument and replace the 1/8″ NPT plug in manifold. Replace regulator cap and close access door.
PAGE 16 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Service
Thermostat
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 inside the stem. The thermostat
should cycle off at a gauge pressure reading of 30 psi. Turn set screw
clockwise to decrease pressure and counterclockwise to increase pressure.
Pressure Switch
The pressure switch should not be adjusted until it is determined to be the
cause of an operating pressure deficiency. See “Thermostat” section to
determine if the source of difficulty is the pressure switch or thermostat.
The major difficulties caused by pressure switch mis-adjustment are:
1. Pressure relief valve opening, especially on preheat from a cold start to
275 degrees Fahrenheit (135 °C). (Pressure 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 not high enough to cause the
pressure relief valve to open. This setting will be slightly different on
different kettles due to variations in the pressure relief valves. During
preheat to the maximum thermostat setting (275 degrees Fahrenheit) (135 °C),
from either a cold condition or a lower temperature setting, the temperature
may overshoot the thermostat setting 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.
To Adjust Pressure Switch
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.
7. If pressure in kettle is below 30 psi when burners shut off, increase
setting of pressure switch, cool kettle completely 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.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 17 OF32
Service
Gas Fired Steam Tilting Kettles
Adding Water
It may be necessary to replenish water in the jacket when the low water
indicator comes on. Do so as follows:
1. Unit should be completely cold and off. 2. Lift handle of pressure relief
valve to release vacuum in kettle. (Relief valve is at right rear of kettle).
3. Remove air vent nut on the tee located between kettle and relief valve.
4. 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 the water level at
the sight glass is half way between the minimum and maximum levels.
5. When sufficient water has been added, replace and tighten the nut. 6.
Vacuum must be re-established. (See Re-establishing Vacuum).
For reference, the total amount of distilled water contained in each unit, and
amount to be added in a low water condition are listed below:
Model GLT-80 GLT-100
Total Amount of Distilled Water 16.3 Gallons (61.71 L) 16.3 Gallons (61.71 L)
Amount of Water to be Added in a Low Water Condition
721 Fluid Ounces (21.32 L)
721 Fluid Ounces (21.32 L)
Re-Establishing Vacuum
With the kettle completely cold a vacuum of 25 to 30 inches Hg (630 – 730 mm
Hg) 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.
With the kettle empty, turn the thermostat knob to the highest temperature.
When the temperature pilot light goes off, open air vent nut one (1) full turn
for 30 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 pressure switch, pressure gauge or
thermostat fitting.
Control Circuit Fuses
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.
PAGE 18 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Service
Converting Between Natural and Propane Gas
To convert the kettle from natural gas to LP or LP to natural gas use OEM Conversion Kits. Contact manufacturer or your authorised service company for the kits part numbers.
To convert gas combination control from one gas to another:
1. Turn off main gas supply to the appliance.
FIGURE 3
2. Remove the regulator cap screw and pressure regulator adjusting screw. See Figure 3.
3. Remove the existing spring.
4. Insert the replacement spring with tapered end down. See Figure 4.
5. Install the new plastic pressure regulator adjustment screw so that the
top of the screw is flush (level) with the top of the regulator. Turn the
pressure regulator adjustment screw clockwise six complete turns. This
provides a preliminary pressure setting of about 10 inch (254 mm) W.C. for LP
regulator and 4 inch (102 mm) W.C. for natural gas regulator.
6. Check the regulator setting either with a manometer or by clocking the gas
meter.
Top View of Gas Control FIGURE 4
7. Install the new cap screw.
8. Mount conversion label on control.
9. Install control and appliance according to appliance manufacturer’s instructions.
Installation of Conversion Kit in Regulated Gas Control.
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 19 OF32
Troubleshooting
Troubleshooting
Gas Fired Steam Tilting Kettles
NOTICE
Loose, broken or grounded wiring may cause many of the symptoms listed. Check
all wiring and make sure it is intact.
PROBLEM Unit will not come on
Unit will turn on electrically but will not heat
Excessive flame rollout on ignition, carboning Unit slow to preheat and slow
to recover
Unit continuously locks out
PROBABLE CAUSE Main power switch is off. Unit not plugged in. Main power supply off. Bad electronic module. Bad low water control. Bad spark igniter. Bad intermittent pilot burner. Fuse in unit blown. Lockout has occurred. Thermostat not on. Gas control valve off. Main gas supply off. Low water. Bad thermostat. Bad pressure switch. Bad gas control valve. Bad spark igniter. Bad igniter cable. Bad intermittent pilot burner. Faulty gas control. Natural gas unit on propane. Excessive gas pressure. Incorrect orifice size. Faulty regulator in gas control. Propane gas on natural. Low gas pressure. Incorrect orifice sizes. Loss of vacuum. Faulty regulator in gas control. Pilot gas adjusted too low. Excessive draft condition. Excessive steam around bottom of unit during operation of cleaning. Faulty transformer. Faulty electronic module. Faulty ignitor cable. Faulty spark igniter. Faulty gas control.
PAGE 20 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Appendix `A’
Material Safety Data Sheets
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 21 OF32
Material Safety Data Sheets
Gas Fired Steam Tilting Kettles
PAGE 22 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Material Safety Data Sheets
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 23 OF32
Material Safety Data Sheets
Gas Fired Steam Tilting Kettles
PAGE 24 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Material Safety Data Sheets
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 25 OF32
Material Safety Data Sheets
Gas Fired Steam Tilting Kettles
PAGE 26 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Material Safety Data Sheets
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 27 OF32
Material Safety Data Sheets
Gas Fired Steam Tilting Kettles
PAGE 28 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Material Safety Data Sheets
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 29 OF32
Material Safety Data Sheets
Gas Fired Steam Tilting Kettles
PAGE 30 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
Gas Fired Steam Tilting Kettles
Notes
Notes
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
PAGE 31 OF32
Gas Fired Steam Tilting Kettles
GLT-80 and GLT-100 Gas Fired Steam Tilting Kettles
A product with the Crown name incorporates the best in durability and low maintenance. We all recognize, however, that replacement parts and occasional professional service may be necessary to extend the useful life of this appliance. When service is needed, contact a Crown Authorized Service Agency, or your dealer. To avoid confusion, always refer to the model number, serial number, and type of your appliance.
CROWN FOOD SERVICE EQUIPMENT
A Middleby Company
70 Oakdale Road, Downsview (Toronto) Ontario, Canada, M3N 1V9
Telephone: 919-762-1000
www.crownsteamgroup.com
PAGE 32 OF 32
INSTALLATION & OPERATION MANUAL 10325 REV 1 (11/21)
References
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