Frymaster GF14 User Manual
GF14 and GF40 Series Gas
Service & Parts Manual
Fryers
January 2008 and Later Models
Use 819-5888 for earlier units
Frymaster, a member of the Commercial Food Equipment Service Association, recommends
using CFESA Certified Technicians.
24-Hour Service Hotline 1-800-551-8633
*8196438*
APRIL 2009
NOTICE
This appliance is intended for professional use only and is to be operated by qualified
personnel only. A Frymaster/DEAN Factory Authorized Service Center (FASC) or other qualified
professional should perform installation, maintenance, and repairs. Installation, maintenance,
or repairs by unqualified personnel may void the manufacturer’s warranty. See Chapter 1 of
this manual for definitions of qualified personnel.
NOTICE
This equipment must be installed in accordance with the appropriate national and local codes of
the country and/or region in which the appliance is installed. See NATIONAL CODE
REQUIREMENTS in Chapter 2 of this manual for specifics.
NOTICE TO U.S. CUSTOMERS
This equipment is to be installed in compliance with the basic plumbing code of the Building
Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation
Manual of the U.S. Food and Drug Administration.
NOTICE
Drawings and photos used in this manual are intended to illustrate operational, cleaning and
technical procedures and may not conform to onsite management operational procedures.
NOTICE TO OWNERS OF UNITS EQUIPPED WITH COMPUTERS
U.S.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions: 1) This device may not cause harmful interference, and 2) This device must accept
any interference received, including interference that may cause undesired operation. While
this device is a verified Class A device, it has been shown to meet the Class B limits.
CANADA
This digital apparatus does not exceed the Class A or B limits for radio noise emissions as set
out by the ICES-003 standard of the Canadian Department of Communications.
Cet appareil numerique n’emet pas de bruits radioelectriques depassany les limites de classe A
et B prescrites dans la norme NMB-003 edictee par le Ministre des Communcations du Canada.
DANGER
Improper installation, adjustment, maintenance or service, and unauthorized alterations or
modifications can cause property damage, injury, or death. Read the installation, operating,
and service instructions thoroughly before installing or servicing this equipment. Only qualified
service personnel may convert this appliance to use a gas other than that for which it was
originally configured.
DANGER
No structural material on the fryer should be altered or removed to accommodate placement of
the fryer under a hood. Questions? Call the Frymaster/Dean Service Hotline at 1-800-551-8633.
DANGER
Adequate means must be provided to limit the movement of this appliance without depending
upon the gas line connection. Single fryers equipped with legs must be stabilized by installing
anchor straps. All fryers equipped with casters must be stabilized by installing restraining
chains. If a flexible gas line is used, an additional restraining cable must be connected at all
times when the fryer is in use.
DANGER
The front ledge of the fryer is not a step! Do not stand on the fryer. Serious injury can result
from slips or contact with the hot oil.
DANGER
Do not store or use gasoline or other flammable liquids or vapors in the vicinity of this or any
other appliance.
DANGER
Instructions to be followed in the event the operator smells gas or otherwise detects a gas leak
must be posted in a prominent location. This information can be obtained from the local gas
company or gas supplier.
DANGER
This product contains chemicals known to the state of California to cause cancer and/or birth
defects or other reproductive harm.
Operation, installation, and servicing of this product could expose you to airborne particles of
glasswool or ceramic fibers, crystalline silica, and/or carbon monoxide. Inhalation of airborne
particles of glasswool or ceramic fibers is known to the State of California to cause cancer.
Inhalation of carbon monoxide is known to the State of California to cause birth defects or other
reproductive harm.
GF14 and GF40 SERIES GAS FRYERS
TABLE OF CONTENTS
CHAPTER 1: Service Procedures
1.1 Functional Description......................................................................................... 1-1
1.2 Accessing Fryers for Servicing............................................................................1-2
1.3 Cleaning the Gas Valve Vent Tube .....................................................................1-2
1.4 Checking the Burner Manifold Pressure..............................................................1-2
1.5 Adjusting Deflector Spacing and Alignment.......................................................1-2
1.6 Adjusting the Pilot Flame .................................................................................... 1-3
1.7 Replacing Fryer Components ..............................................................................1-3
1.7.1 Replacing the Operating Thermostat................................................................... 1-3
1.7.2 Replacing the High-Limit Thermostat................................................................. 1-4
1.7.3 Replacing Deflectors............................................................................................ 1-5
1.7.4 Replacing the Gas Valve...................................................................................... 1-6
1.7.5 Replacing the Thermopile or Pilot Assembly......................................................1-7
1.7.6 Replacing the Frypot............................................................................................ 1-8
1.8 Troubleshooting and Problem Isolation............................................................... 1-9
1.8.1 Pilot Failure.......................................................................................................... 1-9
1.8.2 Improper Burner Functioning............................................................................1-11
1.8.3 Improper Temperature Control.......................................................................... 1-11
1.8.4 Leaking ..............................................................................................................1-12
1.9 Wiring Diagrams................................................................................................ 1-12
1.9.1 Current Production Units with Honeywell Gas Valve....................................... 1-12
CHAPTER 2: Parts Lists
Accessories ......................................................................................................................2-1
Burner and Gas Supply Components...............................................................................2-2
Cabinetry Components.....................................................................................................2-4
Frypot and Related Components...................................................................................... 2-5
i
GF14/GF40 SERIES GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES
1.1 Functional Description
The GF14 and GF40 Series fryers contain a welded steel (stainless or cold-rolled) frypot that is
heated by gas flames diffused over its lower surface by deflectors. In both units, the deflectors are
made of stainless. The rear deflector on the GF14 is attached to the flue. The GF40’s rear deflector is
attached to the burner manifold.
Both the GF14 and the GF40 burners have metal
targets. The GF40 has two orifices per target.
The rear target is attached to the manifold on the
GF40. It is attached to the cabinet in the GF14.
The flames originate from orifices in a U-shaped burner manifold positioned beneath the frypot.
The orifice diameters differ for natural and Propane (LP) gas and for fryers as indicated in the
accompanying table (NOTE: This table shows only the orifices used in elevations up to 1999
feet/609 meters. GF14 fryers have one orifice per deflector; GF40 fryers have two orifices per
deflector assembly.
GF14/GF40 Series Orifice Sizes (0-1999 ft/609 m)
Fryer & Gas Type Inches Millimeters
GF14 Natural 0.065 1.65mm
GF14 Propane (LP) 0.041 1.05mm
GF40 Natural 0.057 1.45mm
GF40 Propane (LP) 0.034 0.86mm
An electromechanical millivolt gas valve regulates gas flow to the burner manifold. GF14/GF40
fryers use a pilot ignition system to control burner firing.
Pilot Ignition System
The pilot ignition system is made up of the pilot orifice, pilot hood, and a thermopile. The pilot
serves two purposes: lighting the burner and heating the thermopile. In operation, the thermopile is
in contact with the pilot flame and generates millivolts. The millivolt output passes through a
normally closed high-limit switch and energizes the gas valve pilot coil, which in turn opens the
pilot valve. If the pilot flame is extinguished, voltage is lost to the gas valve pilot coil and the pilot
valve closes.
1-1
Thermostats
1. These fryers are equipped with adjustable operating thermostats. The temperature at which the
thermostat opens and closes is adjusted by rotating a knob. The tolerance band of the Sunne
thermostat is +10°F (+6°C) and -20°F (-11°C ).
Fryers in the GF14/GF40 series are also equipped with a high-limit thermostat. In the event that the
fryer fails to properly control the oil temperature, the high-limit thermostat prevents the fryer from
overheating to the flash point. The high-limit thermostat acts as a normally closed power switch that
opens when exposed to temperatures above 425ºF to 450ºF (218ºC to 232ºC).
1.2 Accessing Fryers for Servicing
DANGER
Moving a fryer filled with cooking oil/shortening may cause spilling or splattering of
the hot liquid. Follow the draining instructions in Chapter 3 of the Installation and
Operation manual before attempting to relocate a fryer for servicing.
1. Drain all cooking oil/shortening from the fryer.
2. Shut off the gas supply to the unit and disconnect the unit from the gas supply.
3. Remove any attached restraining devices.
4. Relocate the fryer for service accessibility.
5. After servicing is complete, reconnect the unit to the gas supply and reattach the restraining
devices.
6. Refill the frypot with cooking oil/shortening.
1.3 Cleaning the Gas Valve Vent Tube
Refer to Quarterly Checks and Services in Chapter 4 of the Installation and Operation manual.
1.4 Checking the Burner Manifold Pressure
See step 7-15 in section 1.7.4, Replacing the Gas Valve.
1.5 Adjusting Deflector Spacing and Alignment
DANGER
Drain the frypot or remove the handle from the drain valve before proceeding further.
Proper spacing of the edge of the deflectors is ¾-inch (19mm) from the frypot side. To adjust target
spacing, bend the brackets to which they are attached away or toward the frypot to the proper
distance. (A board of the proper thickness is useful as a gauge to verify spacing and alignment.)
The illustration below depicts a typical GF40. The GF14 procedure is the same except that there are
no ceramic targets.
1-2
1.6 Adjusting the Pilot Flame
1. Remove the cap shown in the illustration below to access the pilot flame adjustment screw in the
gas valve.
Remove this cap to
access the pilot flame
adjustment screw.
2. Using a small, flat-tipped screwdriver, turn the pilot flame adjustment screw counterclockwise to
increase the length of the flame or clockwise to decrease the length of the flame. Adjust the
flame to a length of 1 to 1½ inches (25 to 38 mm).
3. Reinstall the pilot flame adjustment screw cap.
1.7 Replacing Fryer Components
1.7.1 Replacing the Operating Thermostat
1. Drain the fryer and turn the gas off.
2. Remove the thermostat knob by pulling straight out on the knob with a firm, steady pull.
3. Disconnect the wires from the thermostat.
4. Remove the two mounting screws to release the thermostat control from its mounting bracket.
1-3
5. Straighten the clips that secure the thermostat bulb to the frypot. Use a slotted socket to unscrew
the thermostat from the frypot.
6. Loosen the capillary tube compression nut (the small nut) on the replacement thermostat so that
it slides freely on the capillary tube. Apply a small amount of Loctite™ PST56765 compound or
equivalent to the threads of the large fitting and screw the replacement thermostat securely into
the frypot, being careful not to twist the capillary tube as the fitting is tightened. DO NOT
tighten the capillary tube compression nut at this time.
Compression Nut
Thermostat Bulb
Attach wire 2C to
this terminal.
Attach wire 1C to
this terminal.
Capillary Tube
Large fitting screws
into frypot.
Carefully coil excess
capillary tube after securing
thermostat bulb to frypot and
tightening compression nut.
Thermostat Control
7. Position the thermostat bulb in the retaining clips and fold the clips down to secure it in place.
8. Gently form the capillary tube so that it lies close to the bottom surface and front wall of the
frypot, working any slack out through the fitting (see illustration above).
9. Tighten the capillary tube compression fitting and carefully coil the excess capillary tubing as
shown in the illustration above. Mount the thermostat control to the mounting bracket using the
screws removed in Step 4.
10. Connect the wires disconnected in Step 3 above to the thermostat as shown in the illustration on
Page 1-4.
11. Install the thermostat knob on the shaft of the thermostat control.
1.7.2 Replacing the High-Limit Thermostat
1. Drain the fryer and turn the gas off.
2. Disconnect the high-limit wires from the gas valve terminal block.
3. Use a slotted socket to unscrew the thermostat from the frypot.
1-4
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