Crown GMT-6-6 User manual

MANUAL 10072R1
INSTALLATION & OPERATION
MANUAL
Direct Steam Kettles on Gas Boiler Cabinet Base
GMT-6-(6,10,12) GMT-10-(6,10,12) GMT-12-(6,10,12)
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.
IMPORTANT FOR FUTURE REFERENCE
Please complete this information and retain this
manual for the life of the equipment:
Model #: ___________________________
Serial #: ___________________________
Date Purchased: ____________________
CROWN FOOD SERVICE EQUIPMENT
Division of Middleby Canada Company Inc.
70 Oakdale Road, Downsview (Toronto) Ontario, Canada, M3N 1V9
Telephone: [phone] www.crownsteamgroup.com
Printed in Canada

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 22005-09-21
IMPORTANT NOTES FOR INSTALLATION AND OPERATION
It is recommended that this manual be read thoroughly and that all instructions be followed
carefully.
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.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable
vapours or liquids in the vicinity of this or any other appliance.
PURCHASER: Instructions to be followed in the event that 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.
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: Contact the factory, the factory representative or local service
company to perform maintenance and repairs.
This manual should be retained for future reference.
Intended for commercial use only. Not for household use.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 32005-09-21
TABLE OF CONTENTS
DESCRIPTION PAGE
1.0 Service Connections ....................................................4
2.0 Installation Instructions .................................................10
3.0 Operation Instructions .................................................13
4.0 Operation Instructions for CSD-1 Equipped Units ............................16
5.0 Periodic Maintenance ..................................................19
6.0 Adjustments .........................................................22
7.0 Troubleshooting ......................................................24
8.0 Introduction - Direct Steam Kettles ........................................26
9.0 Operating Procedures .................................................27
10.0 Cleaning Procedures ..................................................28
11.0 Preventive Maintenance ................................................29

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 42005-09-21

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 52005-09-21

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 62005-09-21

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 72005-09-21

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 82005-09-21
GENERAL
Direct steam jacketed kettle(s), pressure vessels of a double wall stainless steel construction
forming a steam chamber (jacket) enveloping the lower two thirds of the kettle bowl surface.
Kettles are mounted on a modular cabinet base housing a gas boiler designed to ASME Code
and approved as a steam heating boiler restricted to operation at pressure not to exceed 15 psi.
The gas boiler may be in a 24 inch cabinet base rated at 140,000 or 200,000 BTU, or 36 inch or
42 inch cabinet base rated at 200,000, 250,000 or 300,000 BTU, operational on Natural or
Propane gas. Boilers may be optional with electronic ignition and CSD-1 controls. All models
are suffixed with either -6 or -10 to indicate the capacity of the kettle in US gallons.
UNPACKING
Immediately after unpacking, check for possible shipping damage. If the appliance 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 specification on the data plate. NOTE: If this appliance is being
installed above 2000 feet altitude, contact your authorized service office to assure that the
proper orifice size for your elevation has been installed.
1.0 SERVICE CONNECTIONS
PLUMBING CONNECTIONS
WARNING: Plumbing connections must comply with applicable
sanitary, safety, and plumbing codes.
WATER SUPPLY CONNECTION
The incoming cold water supply connection, at the rear of the appliance cabinet, requires 3/8"
tubing and water pressure of 25 - 50 psi. A manual shut-off valve must be provided convenient
to the appliance; this valve should be open when the boiler is in operation. Incoming hot water
connection (½” (13 mm) ) nominal tube for kettle fill faucet must be installed. See Service
Connections.
FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS
NOT COVERED UNDER WARRANTY. SEE WATER QUALITY STATEMENT, PAGE 4.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 92005-09-21
DRAIN CONNECTION
The steamer drain (2" IPS) should be piped to a floor drain near the steamer. There should be
no solid drain connection; an “open gap” between the steamer and the floor drain is required.
GAS CONNECTION
1. The data plate on the cabinet door of the boiler indicates the type of gas your unit is
equipped to burn. DO NOT connect to any other gas type.
Keep the appliance area free and clear from combustible substances. Do not obstruct the
flow of combustion and ventilation air.
2. A 3/4" NPT line is provided at the rear for the connection. Each boiler is equipped with an
internal pressure regulator which is set at 3.5" W.C. manifold pressure for natural gas or
10.5" W.C. for LP gas. Use the 1/8" 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 steady supply pressure, between 7" W.C. and
14" W.C. for natural gas and 11" W.C. and 14" 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.
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.
Contact your gas company for correct supply line sizes.
Purge the supply line to clean out any dust, dirt, or 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 steamer. Make
sure the pipes are clean and free of obstructions, dirt, and piping compound.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 10 2005-09-21
WARNING: Never use an open flame to check for gas leaks. Check
all connections for leaks using soapy water before use.
ELECTRICAL CONNECTIONS
WARNING: Do not connect the appliance to the electrical supply until
after the gas connection has been made.
Refer to the electrical diagram located inside cabinet on door.
When making electrical connections, use copper wire suitable for at least 200°F (90°C). The
steamer must be grounded in accordance with the National Electrical Code or applicable local
codes.
2.0 INSTALLATION INSTRUCTIONS
LOCATION
The installation location must be kept free and clear of combustibles. Do not obstruct the flow
of combustion and ventilation air. Clearance from combustible construction must be a minimum
of 3 inches from the sides and 6 inches from the back. The appliance should be installed on a
noncombustible floor. Provide adequate clearances for cleaning, maintenance, service and
proper operation.
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 obstruct the air flow
into and around the appliance. Do not obstruct the flow of flue gases from the flue duct located
at the rear and above the cabinet. Position the appliance in its final location. Check that there
are sufficient clearances to service the controls, for door swings, etc., so there will be no
problem in making the required supply and drain connections.
Allow enough space between any other piece of equipment or a wall for service access.
Service on the cabinet base may require access to the left and/or right side panels.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 11 2005-09-21
LEVELLING AND ANCHORING THE CABINET
1. Place appliance in the installation position.
2. Place a carpenter’s level on top of the appliance and turn the adjustable feet to level side-
to-side and front-to-back.
3. Mark hole locations on the floor through the anchoring holes provided in the rear flanged
adjustable feet.
4. Remove appliance from installation position and drill holes in locations marked on the floor.
Insert proper anchoring devices (not supplied).
5. Place appliance back in the installation position.
6. Place carpenter’s level on top appliance and re-level side-to-side and front-to-back.
7. Bolt and anchor appliance securely to the floor.
8. Seal bolts and flanged feet with Silastic or equivalent compound.
INSTALLATION CODES AND STANDARDS
The boiler must be installed in accordance with:
Gas installation to conform to local codes, or in absence of local codes, with the National Fuel
Gas Code - ANSI Z223.1/NFPA 54. In Canada installation to be in accordance with CSA
B149.1 Natural Gas and Propane Installation Code.
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 psig
(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 psig (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. In Canada, installation must be in
accordance with the Canadian Electrical Code CSA C22.2.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 12 2005-09-21
INSTALLATION CODES AND STANDARDS (Continued)
WIRING DIAGRAM FOR APPLIANCE IS LOCATED INSIDE CABINET DOOR.
EXHAUST FANS AND CANOPIES:
Canopies are set over ranges, ovens, kettles, etc., for ventilation purposes. It is recommended
that a canopy extend 6 inches past the appliance and be located 6 feet 6 inches 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 an appliance, check with the exhaust fan in the “OFF” position.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 13 2005-09-21
3.0 OPERATION INSTRUCTIONS
WARNING: Do not force the gas control knob. Use only your hand
to turn the gas control knob. Never use any tool. If the gas control
knob will not operate by hand the gas control should be replaced by
a qualified service technician.
WARNING: Do not disassemble the gas control; it contains no
replaceable components. Attempted disassembly or repair may
damage the gas control.
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.
For CSD-1 equipped boilers, see section 4.0 Operation Instructions for CSD-1 Equipped Boiler.
BOILER CONTROLS (Inside Cabinet)
Main Power Switch - ON fills the boiler tank and turns the boiler controls on. You
should allow 20 minutes to fill the tank and generate steam.
- OFF shuts off the boiler controls and opens the automatic
blowdown valve (if so equipped), emptying the boiler tank and
releasing water and steam to the drain. This should be done at
least once daily to remove sediment, lime or scale.
Pilot Light -Indicates main power is ON.
Boiler Pressure Gauge -Should read 9 - 11 psi during operation, 0 psi during shutdown.
Water Level Sight Glass -Observe level of water in the boiler and water quality. Murkiness
in the water indicates inadequate water quality; the owner must
supply proper water to the boiler. See page 4 Water Quality
Statement.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 14 2005-09-21
BOILER CONTROLS (Inside Cabinet) - Continued
Water Level Control - While ON, briefly open the water level control once each week to
remove any sediment that might accumulate.
Safety Valve - This valve will release (pop off) if the boiler has too much pressure.
Once a week, this valve should be tripped during operation to make
sure it functions properly.
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.
1. START UP - BOILER OPERATION WITH STANDING PILOT IGNITION
Open manual gas shut off supply valve and if the appliance has a manual blowdown valve,
close it. Open cabinet door and turn ON power switch located on left side. Green pilot light will
come on, water will begin to enter boiler and required water level will be reached in about three
minutes. Observe water gauge glass to verify.
The dial on the combination gas control valve has three positions (ON-PILOT-OFF) for manual gas
control of main burners and pilot. Turn DIAL to PILOT. Depress dial and light pilot burner located
on centre main burner of boiler. Maintain dial in depressed position for about 30 seconds and
release. Observe that the pilot burner flame stays on. If at any time the flame should become
extinguished, a 5 minute period of complete shut off of gas supply is required before relighting.
Turn dial to ON and burners should ignite. Steam generation will now commence and be
completed in approximately 15 minutes. Steam generation should reach approximately 11 psi
as indicated on the pressure gauge on the boiler.
2. START UP - BOILER OPERATION WITH ELECTRONIC IGNITION
Open manual gas supply valve.
Open cabinet door and turn main power switch ON. Green pilot light will come on, water will
begin to enter boiler and required water level will be reached in about 3 minutes. Observe
water gauge sight glass to verify.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
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PART NUMBER 10072R1 15 2005-09-21
2. START UP - BOILER OPERATION WITH ELECTRONIC IGNITION (Continued)
The dial on the gas combination control valve has two positions (ON and OFF).
ON - [Rotated counterclockwise] permits gas to flow to the pilot and main burner.
OFF - [Rotated clockwise] prevents gas flow to pilot and main burner.
NOTE: Units are shipped with the control in the ON position.
With the gas control valve, power switch and water supply all ON, water begins entering the
boiler and gas flows to the pilot: Spark will begin in 2 to 3 seconds. If the pilot fails to light in
90 seconds, the control will provide 100% lockout. If this occurs: Wait 5 minutes, then turn
power switch off for one minute before turning power switch back on.
Once the pilot is lit and the required water level has been reached, the main burners will ignite.
Burner will cycle to meet the steam pressure required. Steam pressure should reach
approximately 11 psi as indicated on the pressure gauge on the boiler.
DAILY SHUT DOWN
Turn power switch off.
Open manual blowdown valve if so equipped.
COMPLETE BOILER SHUT DOWN
If boiler is not intended to be operated for a lengthy period of time, shut off all power, gas and
water supplies to the appliance. Open manual blowdown valve if so equipped.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 16 2005-09-21
4.0 OPERATION INSTRUCTIONS FOR CSD-1 EQUIPPED UNITS
Initial Start-Up Procedure
1. Open the manual gas shut-off supply valve.
2. Close the manual blowdown valve, if so equipped.
3. Light the pilot burner.
The dial on the combination gas valve has three positions (ON-OFF-PILOT) for manual gas
control of main burners and pilot burner. Turn the dial to PILOT. Depress the dial and light
the pilot burner on the centre burner of boiler. Maintain the dial in depressed position for
about 30 seconds and release. Observe that the pilot flame stays ON. Turn dial to “ON”.
4. Open cabinet door and turn “ON” the power switch. The green pilot light will come “ON”.
Water will begin to enter the boiler. When enough water has entered the boiler the (amber)
“STAND BY” pilot light will come on.
5. Press the “RESET” switch to begin boiler operation. The “STAND BY” pilot light will go off
and the boiler will begin operation.
If at anytime the flame should become extinguished, a five (5) minute purging is required before
relighting is attempted.
Daily Startup Procedure
1. Close the manual blowdown valve, if so equipped.
2. Examine that the pilot burner flame is burning. If the pilot burner is out, a five (5) minute
period of complete gas supply shut off is required before relighting. Follow initial start up
instructions above.
3. Open cabinet door and turn “ON” the power switch. The green pilot light will come “ON”.
Water will begin to enter the boiler. When enough water has entered the boiler the (amber)
“STAND BY” pilot light will come on.
4. Press the “RESET” switch to begin boiler operation. The “STAND BY” pilot light will go off
and the boiler will begin operation.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
BOILER CABINET BASE, GMT-6, GMT-10, GMT-6-6, GMT-10-6, GMT-10-10
PART NUMBER 10072R1 17 2005-09-21
4.0 OPERATION INSTRUCTIONS FOR CSD-1 EQUIPPED UNITS (Continued)
Daily Shutdown Procedure
1. Turn “OFF” the power switch. Observe that the burners go off.
2. Open the manual blowdown valve, if so equipped. If the appliance is equipped with an
automatic blowdown solenoid valve, the boiler’s contents, water and steam, will be blown out
and exhausted through the appliance drain. The cold water solenoid valve will be activated.
Complete Shutdown Procedure
If the appliance is not intended to be operational for a lengthy period, then shut it down
completely.
1. Open the manual blowdown valve, is so equipped.
2. Shut off all supplies of power, gas and water to the appliance.
Normal Boiler Operating Cycle
Water Fill Cycle
On the initial filling of the boiler, the reset switch must be activated to initialize the safety lockout
circuit. Once the water in the boiler has reached the proper level, the level control will stop the
flow of water to the boiler. As water is consumed in the production of steam, the level control
will replenish water to the boiler.
Firing Cycle
The gas valve is controlled by pressure sensing devices. On initial operation of the boiler,
steam generation should reach 11 psi in approximately 15 minutes. At this point the “Operating
Pressure” switch will close the gas valve. When pressure drops to 9 psi, the pressure switch
opens the gas valve and ignition should occur.
Should the pressure rise to more than 14.5 psi the “Override pressure switch” will open the
override solenoid valve, releasing the excess steam.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
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PART NUMBER 10072R1 18 2005-09-21
OPERATION INSTRUCTIONS (Continued)
Condensing Drain
A thermostat is located in the drain assembly and is activated by the temperature of steam.
The thermostat opens the cooling solenoid valve, supplying water to the drain to condense the
steam.
Automatic Blowdown Valve
If the unit has an automatic blowdown valve, it is activated by the main power switch. The
boiler will drain should the main power switch be turned “OFF.”
Safety Lockout Conditions
High Temperature Condition
A high temperature safety device is installed on the boiler. Should the temperature exceed the
limit of this device, the boiler will be shut down and be put in a state of lockout. The
“Temperature” pilot light (Red), and the “Standby” pilot (amber), will come on.
High Pressure Condition
A high pressure safety switch is installed on the boiler. Should the pressure exceed the limit of
this device, the boiler will be shut down and be put into a state of lockout. The “Pressure” pilot
light (Red), and the Stand By pilot (amber), will come on. Should this device fail to operate, the
safety relief valve will open.
Low Water Condition
A second low water safety cut off is supplied with the boiler. Should the water level fall below
normal operating levels, this device will activate and put the boiler in a state of lockout. The
“Low Water” pilot light (Red), and the “Stand By” pilot (amber) will come on.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
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PART NUMBER 10072R1 19 2005-09-21
5.0 PERIODIC MAINTENANCE
Be sure to flush your boiler water level control daily. Failure to follow this procedure can cause
the control to malfunction resulting in serious boiler damage.
The Boiler Water Level Control installed on your boiler requires periodic maintenance. As boiler
water circulates into the float chamber, sand, scale and other sediment may be deposited in the
float chamber. While the chamber has been designed with a large accumulation bowl, it is
necessary to flush the sediment from the chamber by blowing down the control so that the
accumulation of sediment does not interfere with the movement of the float in the control.
Control must be flushed at least once a day.
CAUTION: Protect yourself. When flushing control, hot water and
steam will flow out of the drain.
When flushing control, note water level in gauge glass, allow the boiler to fill if necessary and
also to come up to temperature.
Before flushing control, note that water level in gauge glass is within operating range and the
boiler pressure is at least 6 psi. While the boiler is being fired, open blowdown valve at bottom
of control by rotating the handle counterclockwise about 1/4 turn to fully open the valve.
Opening the blowdown valve also checks the cut-off operation. Float should drop shutting
burner off, hot water and steam will flow out the drain flushing away sediment.

INSTALLATION AND OPERATION MANUAL, DIRECT STEAM KETTLES MOUNTED ON GAS
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PART NUMBER 10072R1 20 2005-09-21
5.0 PERIODIC MAINTENANCE (Continued)
CAUTION: If burner does not shut off during blowdown,
immediately discontinue use of appliance and call for service.
Continue draining water for about fifteen (15) seconds, from control until water is clean.
Manually close valve. Recheck gauge glass. If water level has dropped significantly, wait for
the boiler to restore water level and pressure and repeat if necessary.
PERIODIC MAINTENANCE
WARNING: Disconnect the power supply to the appliance before
cleaning or servicing.
1. If water in sight glass is not clear and appears murky, this indicates poor water quality and
may cause control failure. SEE WATER QUALITY STATEMENT, page 4.
2. Safety valve should be tripped during operation once a week to ensure that it is functioning
properly.
3. Clean around burners and orifices if lint has accumulated.
4. Visually ensure carry over ports are unobstructed.
5. Visually check that the flue is not obstructed.
CLEANING
DO NOT allow water near the electrical components.
At the end of the day, turn the Main Power Switch OFF (automatic blowdown drains the boiler
tank) or if equipped with manual blowdown valve, open. Wash exterior with mild detergent and
warm water, rinse, and wipe dry. Do not use steel wool on stainless steel surfaces.