Page 1
FT-GL & FT-GLF SERIES
GAS TILTING KETTLES
INSTALLATION - OPERATION - MAINTENANCE
2/3 JACKETED MODELS
FT-20GL
FT-30GL
FT-40GL
FT-60GL
FULLY JACKETED MODEL
FT-40GLF
Telephone: (802) 658-6600 Fax: (802) 864-0183
www.marketforge.com PN 14-0359 Rev A (9/14)
© 2014 - Market Forge
Page 2
Your Service Agency’s Address:
Model
Serial number
Oven installed by
Installation checked by
Page 3
IMPORTANT
TABLE OF CONTENTS
WARNING: Improper installation, adjustment, alternation,
service or maintenance can
cause property damage, injury or death. Read the installation, operation and maintenance instructions thoroughly
before installing or servicing
this equipment.
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE
USER SMELLS GAS MUST BE
POSTED IN A PROMINENT LOCATION. This information may
be obtained by contacting your
local gas supplier.
FOR YOUR SAFETY
Do not store or use gasoline or
other ammable vapors or liquids in the vicinity of this or any
other appliance.
INSTALLATION
Service Connections ..................................................... 2
Installation Information ................................................... 4
Installation Instructions ................................................... 4
Utility Connections ....................................................... 5
Performance Check ...................................................... 6
OPERATION
Gas Control Instructions .................................................. 7
Control Panel ............................................................ 8
Operating Tips ........................................................... 9
MAINTENANCE
Cleaning Instructions .................................................... 10
Maintenance Schedule .................................................. 11
The information contained in this
manual is important for the proper installation, use, and maintenance of this oven. Adherence
to these procedures and instructions will result in satisfactory
baking results and long, trouble free service. Please read
this manual carefully and retain
it for future reference.
ERRORS: Descriptive, typographic or pictorial errors are
subject to correction. Specications are subject to change
without notice.
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Service Connections
2/3 JACKETED GAS KETTLES
DIMENSIONS
MODEL A B C D E F G H J K L M
FT-20GL 20 48.125 40.375 19 40.5 76.5 16.5 24 11 10 32 30.5
508 1222 1032 483 1020 1943 419 610 280 254 813 775
FT-30GL 26 54.25 43.375 16.5 37.25 73.75 15.5 22.25 7.5 11 34 29.5
660 1378 1108 419 946 1874 394 565 190 280 864 749
FT-40GL 26 54.25 43.375 16.5 41.5 76 15.5 22.25 7.5 12 35 30.5
660 1378 1108 419 1054 1930 394 565 190 305 889 775
FT-60GL 30 58.125 43.375 17.875 45.5 82 19.5 22.25 5.5 15 38 30.375
762 1378 1108 545 1156 2083 496 565 140 381 965 772
NOTE: Allow 6” (152mm) Min. spacing on left and right sides and 2” (51mm) spacing from flue.
5.13 [130]
26
[660]
35
[889]
G
OPTIONAL SPRING
ASSIST COVER
G
10.25 [260]
B
G
OPTIONAL FAUCET
6.25 [159]
C
EC
3.13 [79]
EC
F
SERVICE CONNECTIONS
EC Electrical Connection - 115 Volt, 60Hz, 1Ph, fur-
nished with 6 ft. cord with 3 pronged plug. Total
Max. Amps 2.0.
G Gas Connection - 3/4” (19mm) N.P.T.
MODEL Input BTU/Hour Efficiency
FT-20GL 80,000 78% Minimum
FT-30GL 100,000 78% Minimum
FT-40GL 100,000 75% Minimum
FT-60GL 120,000 75% Minimum
DIMENSIONS ARE IN INCHES [MM]
WALL
4 [102] MIN
E
36.25
[921]
H
D
INSTALLATION
6 [152]
29
[736]
Figure 1
2
J
L
K
M
Page 5
FULLY JACKETED GAS KETTLE
Service Connections
DIMENSIONS ARE IN INCHES [MM]
10.5 [267]
5.88 [149]
26
[660]
18.38
[467]
19.88 [505]
G
30.5 [775]
59 [1499]
EC
FLANGED FOOT DETAIL
Ø4 EQUALLY SPACED
7/16 [11] HOLES
ON 3 [75] B.C.
7.13 [181]
4 [102]
2 [51]
CW
HW
CW
OPTIONAL
OPTIONAL
35 [889]
45.5 [1156]
SERVICE CONNECTIONS
EC Electrical Connection - 120V, 60Hz, 1pH
with grounding wire, unless other wise
specified. Includes a 6 foot and 3 prong
plug. Total Max Amps: 4.0
G Gas Connection - 3/4” (19mm) N.P.T. a
gas shut-off valve must be installed in supply piping convenient and adjacent to unit.
CW Cold Water - 3/8” (10mm) O.D. tubing to
optional faucet.
HW Hot Water - 3/8” (10mm) O.D. tubing to
optional faucet.
BTU/Hour: 120,000
kW/Hour: 35.2
Gas Supply (Supply Pipe Pressure W.C.)
Natural 6”-14” (152-356mm)
Propane 11”-14” (279-356mm)
Minumum Clearance (Sides & Back) :
4” (102mm)
OPTIONAL
SPRING ASSIST
COVER
4 [102]
36.63 [930]
22.63 [572]
G
18.75 [476]
5.25 [133]
Ø30 [762] ID
50.25 [1276]
EC
3.5 [89]
18.75 [476]
29.63 [752]
6.5 [165]
Figure 2
40.5 [1029]
75.25
[1911]
6.25
[177]
22 [559]
CW
8.25 [210]
39.5 [1003]
OPTIONAL
27.75 [705]
HW
CW
OPTIONAL
3
INSTALLATION
Page 6
Installation Information
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 side
panel of left hand console.
EXHAUST FANS AND CANOPIES
Canopies are set over ranges, ovens and kettles for ventilation purposes. It is recommended that a canopy extend
6 inches past appliance and be located 7.5 feet from the
oor. 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 lter. A strong exhaust fan tends to create a vacuum in the room and may
interfere with burner performance or may extinguish pilot
ames. 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 two 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 0 INCHES
BACK 4 INCHES AT FLUE BOX
FLOORS NON-COMBUSTIBLE
All units must be installed in such a manner that the ow
of combustion and ventilation air are not obstructed. Pro-
visions for an adequate air supply must also be provided.
Do not obstruct side of the unit, as combustion air enters
through this area.
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 Instructions
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 oor. A maximum 3 foot, 3/4” diameter pipe may
be used to extend to the oor, 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 oor.
5. Mark hole locations on oor through anchoring holes
provided in anged adjustable feet.
6. Remove appliance and drill holes in locations marked
on oor 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 oor.
9. Seal bolts and anged 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.
INSTALLATION
4
Page 7
Utility Connections
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 3.5” W.C. manifold pressure for natural
gas and 4.0” W.C. for propane gas. Use 1/8” pipe tap on
the downstream side of the combination valve 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 ame 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 specied on
order, contact service department. Failure to
install with proper orice sizing may void the
warranty.
WATER CONNECTION
On units equipped with an optional water ll valve connect
a water line (minimum 1/4”) to the valve with a 1/4” NPT
female tting. 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 kettle to the electrical supply until after the gas connection has been
made.
1. 120 VAC - 60 Hz - Single Phase
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).
Units with this electrical rating are factory supplied
with a three-wired cord and three-prong plug which
ts 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 right console. Route supply wires and
ground wire through the hole in the console with a
strain relief tting. Connect wires to the terminal
block in the rear of the right console. Connect ground
wire to 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 ratings should be
wired exactly as in (2.) above.
5
INSTALLATION
Page 8
Performance Check
The following items should be checked before or within
the rst 30 days of operation by a qualied service technician.
1. Verify correct gas type against rating plate on unit.
2. Verify correct voltage, cycle and phase against rating
plate on unit.
3. Gas pressure.
4. Internal gas connections.
5. Internal electrical connections.
6. Burners - adjustment and ignition.
7. Thermostat - cycle for operation check.
8. Gas supply valve - check for operation.
9. Check hinge and lid assembly.
10. Draw-off valve - check operation.
11. Advise user on cleaning procedure.
INSTALLATION
6
Page 9
Gas Control Instructions
Contact the factory, the factory representative or a
local service company to perform maintenance and
repairs should the appliance malfunction.
CAUTION
If you smell gas during the lighting procedure,
immediately shut off the gas supply until the
leak has been corrected.
WARNING
In the event of main burner ignition failure, a
5 minute purge period must be observed prior
to re-establishing ignition source.
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.
GAS CONTROL INSTRUCTIONS
The units do not require “lighting” the pilot with a match.
Lighting
NOTE: Unit is shipped with gas combination valve turned
“ON”.
1. Open manual gas shut off valve.
DAILY SHUTDOWN
1. Turn power switch “OFF.”
2. Turn thermostat “OFF.”
COMPLETE SHUTDOWN
1. Turn power switch “OFF.”
2. Turn thermostat “OFF”.
3. Turn power supply to unit “OFF”.
4. Remove front access panel on left side and turn dial
on combination valve to “OFF”.
5. Close manual gas shut off valve.
2. Set thermostat to OFF, and kettle in fully upright position, turn power switch ON.
3. Set thermostat to maximum, initiating a 30 second
pre-purge. Red “COOKING” pilot will come on, and
after 30 seconds, the green “IGNITION” pilot will
come on, lighting the main burners.
If after 36 seconds the burner fails to ignite or the
“ignition light goes out, the system goes into Safety
Lockout. De-energize the system by setting the ther-
mostat to “OFF” for ve minutes and try again.
4. Set the thermostat to desired temperature setting.
When temperature setting has been reached, the “IGNITION” pilot will go off, turning off the burner. The
unit will then cycle on and off to maintain set temperature.
NOTE: When the kettle is tilted a safety switch will auto-
matically turn off gas supply. The kettle will not
operate once it has been tilted
7
OPERATION
Page 10
Control Panel
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.
(GREEN) IGNITION LIGHT
This light is on whenever the main burner gas is on.
(RED) COOKING LIGHT
This light is on when the thermostat is calling for heat.
(AMBER) LOW WATER LIGHT
All kettles are supplied with sufcient distilled water in
pressurized jacket. If at any time the water level falls be-
low that required for proper operation, the kettle will not
heat and this light will come on. See “Adding Water” in
Service section.
THERMOSTAT
The thermostat selects the desired internal kettle operating temperature. The thermostat must be set at a desired
setting in order for the burner to ignite.
PRESSURE GAUGE
The pressure gauge indicates the internal operating pressure of the kettle. When cold, the gauge should point to
the green vacuum zone. If it does not, refer to “Re-establishing Vacuum” section. Under normal operation with the
kettle empty (thermostat set at 10 or 275EF) the pressure
should 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” in Service section.
PRESSURE RELIEF VALVE
The pressure relief valve is a safety device which prevents the internal kettle pressure from exceeding 50 psi.
It should never be tampered with.
DIAL SETTING °C °F
1 15 60
2 27 81
3 40 104
4 53 127
5 67 153
6 81 178
7 95 203
8 108 226
9 122 252
10 135 275
OPERATION
8
Page 11
Operating Tips
DAILY OPERATION
Daily operation should consist of turning on the power
switch and setting 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 rst time.
At the end of the 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
INSTRUCTIONS” section.
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 salt water to cook shellsh, be sure to rinse and
wash the kettle thoroughly after use.
Bring milk and egg products slowly up to temperature in a
cold kettle to prevent product from adhering to the sides.
When preparing milk-based products do not preheat the
kettle.
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 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 will seal the juices in the meat.
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.
9
OPERATION
Page 12
Cleaning Instructions
CAUTION
Disconnect the power supply to the appliance
before cleaning or servicing.
WARNING
Never spray water into electric controls or
components!
CAUTION
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 the tangent drawoff 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 rst 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.
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 nished
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.
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.
MAINTENANCE
10
Page 13
Cleaning Instructions
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.
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 va-
pours 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 nish 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 nish. 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 difcult to clean. Marring also increases
the possibility of corrosive attack. Renishing 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
ushed 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.
Maintenance Schedule
Contact the factory, the factory representative or a local
service company to perform maintenance and repairs.
Daily:
1. Wash exposed cleanable areas.
Monthly:
1. Blower wheel inlet and motor air vent should be
cleansed if an accumulation of dust or lint is obvious.
Twice a Year: (minimum)
1. Have an authorized service person clean and adjust
the unit for maximum performance.
2. The unit venting system should be examined and
cleaned.
3. Grease the screw jack tilt mechanism via the lubricating nipple. Use Petro-Canada type OG-2 or equivalent.
Annually:
1. Have an authorized service person inspect the screw
jack assembly for wear. The screw must be replaced
immediately if the end play has reached 0.019”
[0.5mm].
11
MAINTENANCE
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