Frymaster Fryer 24G Series User Manual

Models 1824G, 2424G and 1824/2424G  
Systems with Built-In Filtration  
NON-CE  
&
Frymaster Dean, a member of the Commercial Food Equipment Service Association,  
recommends using CFESA Certified Technicians.  
24-Hour Service Hotline  
PRINTED IN THE USA  
JUNE 2007  
1-800-551-8633  
* 8 1 9 6 0 3 1 *  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Please read all sections of this manual and retain for future reference.  
This product has been certified as commercial cooking equipment and MUST be installed by  
professional personnel as specified. Installation, maintenance and repairs should be performed  
by your FRYMASTER DEAN FACTORY AUTHORIZED SERVICE CENTER.  
DANGER  
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any  
other cooking appliance.  
DANGER  
Instructions explaining procedures to be followed MUST be posted in a prominent location in  
the event the operator detects a gas leak. This information can be obtained from the local gas  
company or gas supplier.  
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.  
DANGER  
Safe and satisfactory operation of your equipment depends on proper installation. Installation  
MUST conform with local codes, or in absence of local codes, with the National Fuel Gas Code,  
ANSI Z223.1; The Natural Gas Installation Code, CAN/CGA-B149.1; The Propane Installation  
Code, CAN/CGA-B149.2; or The latest edition of the National Electric Code, N.F.P.A. 70.  
NOTICE  
IF, DURING THE WARRANTY PERIOD, THE CUSTOMER USES A PART FOR THIS ENODIS  
EQUIPMENT OTHER THAN AN UNMODIFIED NEW OR RECYCLED PART PURCHASED  
DIRECTLY FROM FRYMASTER DEAN, OR ANY OF ITS AUTHORIZED SERVICE CENTERS,  
AND/OR THE PART BEING USED IS MODIFIED FROM ITS ORIGINAL CONFIGURATION, THIS  
WARRANTY WILL BE VOID. FURTHER, FRYMASTER DEAN AND ITS AFFILIATES WILL NOT BE  
LIABLE FOR ANY CLAIMS, DAMAGES OR EXPENSES INCURRED BY THE CUSTOMER WHICH  
ARISE DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, DUE TO THE INSTALLATION OF  
ANY MODIFIED PART AND/OR PART RECEIVED FROM AN UNAUTHORIZED SERVICE CENTER.  
DANGER  
The crumb tray in fryers equipped with a filter system must be emptied into a fireproof container  
at the end of frying operations each day. Some food particles can spontaneously combust if left  
soaking in certain shortening material. Additional information can be obtained in the filtration  
manual included with the system.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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.  
WARNING  
Drawings and photos used in this manual are intended to illustrate operational, cleaning and  
technical procedures and may not conform to on-site management operational procedures.  
WARNING  
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.  
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 Food and Drug Administration.  
COMPUTERS (WHERE APPLICABLE)  
FCC  
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  
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.  
WARNING  
Do not bang fry baskets or other utensils on the fryer’s joiner strip. The strip is present to seal  
the joint between the fry vessels. Banging fry baskets on the strip to dislodge shortening will  
distort the strip, adversely affecting its fit. It is designed for a tight fit and should only be  
removed for cleaning.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G Series Flatbottom Gas Fryers  
Service & Parts Manual  
TABLE OF CONTENTS  
PAGE #  
1.  
SERVICE PROCEDURES  
1–1  
1.1  
Functional Description  
1–1  
1.2  
Accessing Fryers for Servicing  
1–5  
1.3  
Cleaning Gas Valve Vent Tube  
1–6  
1.4  
Adjusting Burner Manifold Gas Pressure  
Adjusting Pilot Flame  
1–6  
1.5  
1–7  
1.6  
Calibrating the Thermatron Temperature Controller  
Replacing Fryer Components  
1–7  
1.7  
1–9  
1.7.1  
1.7.2  
1.7.3  
1.7.4  
1.7.5  
1.7.6  
1.8  
Remove/Replace Temperature Probe or High-Limit Thermostat  
Removing /Replacing Rocker Switches  
Replacing the Gas Valve  
1–9  
1–11  
1–12  
1–12  
1–13  
1–15  
1–19  
1–20  
1–21  
1–23  
1–23  
1–25  
1–26  
1–26  
1–27  
1–28  
1–29  
1–29  
1–30  
1–31  
1–32  
1–33  
1–34  
1–35  
1–36  
1–37  
Replacing the Pilot Assembly or Direct Spark Ignitor  
Removing/Replacing Blower Assembly or Air Prover Switch  
Replacing the Frypot  
Troubleshooting and Problem Isolation  
Ignition Failures  
1.8.1  
1.8.2  
1.8.3  
1.8.4  
1.8.5  
1.9  
Improper Burner Functioning  
Improper Temperature Control  
Filtration Problems  
Leakage  
Troubleshooting Guides  
1.9.1  
1.9.2  
1.9.3  
1.10  
1.10.1  
1.10.2  
1.10.3  
1.10.4  
1.10.5  
1.10.6  
1.10.7  
1.10.8  
1.10.9  
Pilot Burner Malfunctions  
Main Burner Malfunctions  
Indicator Lights  
Wiring Diagrams  
24G Series Single Fryers, Non-CE with out Boil Switch  
24G Series Single Fryers, Non-CE with Boil Switch  
24GTI with Drain Safety Switch, and Boil Out Option Enabled LJS  
24GTI with Drain Safety Switch, and Boil Out Option Enabled 120V non-LJS  
24GTI with Drain Safety Switch, and Boil Out Option Enabled 250V non-LJS  
24GTI with Drain Safety Switch, and Boil Out Option Disabled KFC  
24GTI with Drain Safety Switch, and Boil Out Option Disabled non-KFC  
24G Series Single Fryers, CE Approved  
24GTI Oil Return/Filter System  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G Series Flatbottom Gas Fryers  
Service & Parts Manual  
TABLE OF CONTENTS (cont.)  
PAGE #  
2.  
PARTS LIST  
2–1  
2.1  
Blower Assembly, Combustion Air  
Burner Manifold and Related Components  
Cabinetry  
2–1  
2.2  
2–2  
2.3  
2–4  
2.3.1  
2.3.2  
2.3.3  
2.4  
Backs, Bases, Casters, Sides, Etc.  
Door Assemblies and Component Parts  
Flue Caps, Top Caps, and Related Components  
Control Panels, Wireways, and Related Components  
Filtration  
2-4  
2-6  
2-8  
2–10  
2–12  
2–12  
2–17  
2–20  
2–22  
2–23  
2.5  
2.5.1  
2.5.2  
2.6  
Under Fryer Filter (UFF) Components  
ND90 Built-In Filter System Components  
Frypot, Drain and Oil-Return Components  
Drain Valve and Components  
2.7  
2.8  
Wiring Connectors, Pin Terminals and Power Cords  
Download from Www.Somanuals.com. All Manuals Search And Download.  
THIS PAGE INTENTIONALLY LEFT BLANK  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.1 Functional Description  
24G Series Flatbottom gas fryers contain a welded steel frypot (mild steel) with heat-transfer ducting  
on the frypot bottom for efficient heating of oil without scorching. A draft inducer draws air over  
the burners for combustion. Air movement directs the combustion products back and forth across  
the frypot bottom by means of a set of baffles, transferring the heat evenly. Cold air is prevented  
from entering the combustion chamber and cooling the oil during the coasting cycle.  
Flames originate from orifices in three tubular burners positioned at the front and beneath the frypot.  
The diameter of the orifices differs for Natural (CE:G20/G25) and LP (CE:G31) gas as indicated in  
the table below.  
NON-CE (Altitudes of 2000 feet or less)  
EQUIPMENT  
PRESSURE  
INPUT  
(BTU)  
ORIFICE  
[DRILL SIZE (MM)]  
ORIFICE  
PART #  
MODEL  
GAS TYPE  
QTY  
MBAR  
INCH W.C.  
NAT  
LP  
#34 (2.82)  
#50 (1.78)  
810-2051  
810-2317  
3
3
10  
27.5  
4
11  
1824/2424G  
120  
CE ONLY (Altitudes of 2000 feet or less)  
EQUIPMENT  
PRESSURE  
INPUT  
(kW)  
ORIFICE  
(MM)  
ORIFICE  
PART #  
MODEL  
GAS TYPE  
QTY  
MBAR  
INCH W.C.  
30,0  
(88,000  
BTU)  
G20  
G25  
G31  
2,50  
2,50  
1,60  
810-2628  
810-2628  
810-2317  
3
3
3
14,5  
21,0  
31,0  
5,8  
8,4  
12,44  
1824/2424G  
1-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
An electromechanical gas valve regulates gas flow to the manifold. 24G Series Flatbottom gas  
fryers are equipped with either a 120-volt valve system (standing pilot) or a 24-volt valve system  
(electronic ignition or CE standing pilot). Units may be configured with either a pilot ignition system  
(standing pilot) or an electronic ignition system (direct spark ignition).  
Pilot System Configuration  
The pilot system is comprised of the pilot orifice, pilot hood, and a thermocouple. The pilot serves  
two purposes. The first is to light the burner, the second is to heat the thermocouple. In operation,  
the thermocouple is in contact with the pilot flame and generates millivolts. The millivolt output  
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. The gas valve is  
constructed so that the main valve will not open if the pilot valve is not open. The pilot flame must  
be manually lit when the fryer is first placed into operation. A separate circuit, activated by the fryer  
ON/OFF switch, provides voltage through the Thermatron temperature controller to the gas valve  
main coil, which opens the main valve.  
Main Coil  
Gas  
Valve  
Pilot Coil  
Thermocouple  
High-Limit  
Thermostat  
Pilot  
Line Voltage  
Line Voltage  
MELT CYCLE DISABLE  
ON/  
OFF  
Switch  
Thermatron Temperature  
Controller  
The Pilot System  
120V  
Electronic Ignition Configuration  
In units configured for electronic ignition, an ignition module connected to an ignitor assembly  
replaces the pilot system. The ignition module performs three important functions: it provides an  
ignition spark, supplies voltage to the gas valve, and proofs the burner flame.  
The module contains a time delay circuit and a coil that activates the gas valve. The ignitor  
assembly consists of a spark plug and a flame sensor element.  
At start-up the ON/OFF switch is placed in the "ON" position, supplying 115 VAC or 230 VAC,  
according to system configuration, to the Thermatron interface board. The voltage is stepped down  
1-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
via transformer to 24 VAC before entering the ignition module. If resistance in the temperature  
probe indicates the temperature in the frypot is below 150°F (66°C), the current flows through a melt  
cycle circuit where a switch alternately closes for approximately 4 seconds and opens for  
approximately 20 seconds. If the temperature is 150°F (66°C) or above, the current flows through a  
heat circuit, bypassing the timer switch. In either case, current is supplied to the other leg of the heat  
relay coil, which then closes an electronic switch in the 24 VAC circuit to provide current to the  
ignition module.  
Circuitry in the ignition module sends 24 VAC current to the gas valve via a normally closed high-  
limit switch and a drain safety switch. Simultaneously, the module causes the ignitor to spark for up  
to 11 seconds to light the burner flame. A flame sensor verifies that the burner is lit by measuring  
the flow of microamps through the flame. If the burner does not light (or is extinguished), current to  
the ignition module is interrupted, preventing the main valve from opening, and the ignition module  
"locks out" until the power switch is turned "OFF", then back "ON".  
A temperature probe monitors the temperature in the frypot. When the programmed setpoint  
temperature is reached, resistance in the probe causes the heat cycle circuitry in the controller to  
interrupt current flow through the heat relay. This in turn interrupts the 24 VAC to the ignition  
module, resulting in closure of the gas valve.  
Control Options  
24G Series Flatbottom gas fryers are equipped with Thermatron temperature controller. The fryer is  
turned on and off by means of a rocker switch and the temperature is set by adjusting a  
potentiometer. The Thermatron board is located in the wireway box behind the control panel, or in a  
component box inside the cabinet (depending on fryer configuration).  
The Thermatron temperature controller operates by comparing resistance between the potentiometer  
setting and the temperature probe. If the resistance values don’t match, an on-board relay energizes,  
sending voltage to the gas valve, which supplies fuel to the burners. When the resistance values are  
equal, the on-board relay de-energizes, interrupting voltage to the gas valve, which stops the fuel  
flow.  
Depending on the system configuration and destination, 24VAC, 115VAC or 208/230VAC  
controller boards are used.  
1-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
Not used  
MELT CYCLE DISABLE  
Thermatron Controller Board  
Line voltage enters the interface board at terminals 1 and 3. The temperature controls  
(potentiometer) are connected to terminals 7, 8 and 9. The sensor probe circuit is connected to  
terminals 10 and 11. The high-limit and gas valve routes through terminal 12. Terminals 2 and 13  
are jumped out. Terminals 5 and 6 are the melt-cycle disable circuit. The melt cycle is enabled  
unless terminals 5 and 6 are jumped out.  
1-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
Safety Components  
All 24G Series Flatbottom gas fryers are 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 flash point. The high-limit thermostat acts as a normally closed power switch that  
opens when exposed to temperatures above 410°F [(210°C)- CE] to 435°F [(224°C)- Non-CE]. CE  
and non-CE high-limits are not interchangeable.  
Frying systems with built-in filtration are equipped with drain microswitches that disable the fryer if  
the drain valves are not completely closed. Opening a drain valve (i.e. filtering or draining the fryer)  
automatically opens the reset switch circuit. The drain valve must be fully closed prior to resetting  
the safety switch.  
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 included with the fryer before  
attempting to relocate a fryer for servicing.  
NOTE: Perform the following only if the fryer cannot be serviced in its installed location. Some of  
the following service procedures require the fryer to be connected to the gas and/or electrical supply.  
1. Shut off the gas supply to the unit. Unplug the power cords. Remove any attached restraining  
devices.  
2. Disconnect the unit from the gas supply.  
3. Relocate the fryer for service accessibility.  
4. After servicing is complete, reconnect the unit to the gas supply, reattach restraining devices, and  
plug in the electrical cords.  
1-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.3 Cleaning the Gas Valve Vent Tube (if applicable)  
1. Set the fryer power switch and the gas valve to the "OFF" position.  
2. Carefully unscrew the vent tube from the gas valve. NOTE: The vent tube may be straightened  
for ease in removal.  
3. Pass a piece of ordinary binding wire (.052 inch diameter) through the tube to remove any  
obstruction. Remove the wire and blow through the tube to ensure it is clear.  
4. Reinstall tube and bend so that the opening is pointing downward.  
1.4 Adjusting Burner Manifold Gas Pressure  
WARNING  
This task should be performed by qualified service personnel only.  
1. Ensure that the gas valve knob is in the  
"OFF" position.  
2. Remove the pressure tap plug from the  
burner manifold.  
3. Insert the fitting for a gas pressure-  
measuring device into the pressure tap  
hole.  
Remove pressure tap from burner manifold to  
check burner manifold pressure.  
4. Place the gas valve in the "ON" position then place the fryer power switch in the "ON" position.  
When the burner lights and continues to burn, note gas pressure reading for correct pressure in  
accordance with the table on page 1-1.  
1-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
5. To adjust burner gas pressure, remove the cap from the gas valve regulator and adjust to correct  
pressure (arrows).  
CE Pilot Ignition Valve  
Pilot Ignition Valve (Line  
Voltage)  
Non-CE Electronic Ignition  
Valve  
6. Place the fryer power switch and the gas valve in the "OFF" position. Remove the pressure-  
measuring device fitting from the pressure tap hole and reinstall the pressure tap plug.  
1.5 Adjusting the Pilot Flame (where applicable)  
1. Remove the cap from the pilot adjustment screw hole on the gas valve.  
2. Using a small, flat-tipped screwdriver, turn the pilot adjusting screw counterclockwise to  
increase length of flame or clockwise to decrease length of flame. Adjust to obtain a flame from  
1 to 1-½ inches long.  
3. Reinstall the pilot adjustment screw cap.  
1.6 Calibrating the Thermatron Temperature Controller  
1. Fill the frypot to the proper oil-level line with cooking oil/shortening. If solid shortening is used,  
ensure that the shortening is properly packed and melted in the frypot before proceeding.  
2. Ensure the fryer ON/OFF switch is in the "OFF" position, and then light the pilot.  
3. Place the fryer ON/OFF switch in the "ON" position. Set the Thermatron dial to 325°F (162°C).  
4. Allow the oil/shortening to equilibrate at setpoint temperature. This is evident when the burners  
have cycled on and off several times.  
1-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
5. Insert a good grade thermometer or pyrometer into the frypot within 3 inches of the probe bulb.  
Ensure the tip of the thermometer/pyrometer does not touch the bottom or sides of the frypot.  
6. If the temperature on the thermometer is higher or lower than 325°F (162°C), the dial is out of  
calibration.  
7. Calibrate the dial by first loosening two  
setscrews in the dial (arrows). After  
loosening both setscrews, slowly turn the  
dial to match the temperature reading of  
the thermometer. Tighten each setscrew,  
ensuring the dial does not move on the  
shaft during tightening.  
8. Allow burners to cycle on and off several  
times, then recheck oil temperature as  
described in step #5. If the Thermatron  
dial temperature matches the thermometer  
temperature, the controller is calibrated.  
If not, repeat step #7.  
9. After calibration is complete, place the  
fryer power switch in the "OFF" position  
and disconnect the fryer from the  
electrical supply.  
Loosen two setscrews in dial (arrows) to recalibrate  
controller.  
1-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.7 Replacing Fryer Components  
1.7.1 Remove/Replace Temperature Probe or High-Limit Thermostat  
1. Disconnect the fryer from the electrical supply.  
2. Allow the frypot to cool for 10 minutes before draining. Drain cooking oil/shortening from the  
frypot. Allow the frypot to cool completely before proceeding.  
3. Remove the fryer door(s) for access to control panel screws. Lift door up, disengage rod from  
lower door bracket, and then remove door. (Current production models have spring-loaded door  
pins. Disengage bottom pin from the hinge, and then remove door.)  
4. Remove the marine edge (where applicable) from the topcap.  
5. Support the control panel and remove  
screws securing the panel to the wireway  
box. Remove the control panel.  
6. On units with switches/indicator lights on  
the control panel, mark and unplug the  
wiring, and then remove the control panel.  
7. Remove screw securing probe/high-limit  
access cover to wireway box. Remove  
access cover and set aside.  
Note: Some systems have a wiring terminal  
block mounted on the access cover. Mark  
and disconnect the wiring to the terminal  
block before removing access cover.  
1-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
8. Remove the sensor bulb guard to access the  
probe and high-limit. Current production  
systems have a sensor bulb clamp that must  
be removed prior to removing the probe or  
high-limit from the frypot.  
9. On the sensor bulb being removed, loosen  
and unscrew completely the compression  
nut, then the pass-through nut from the  
frypot. Carefully remove the sensor bulb  
from the frypot, being careful not to damage  
the remaining sensor bulb.  
Temperature probe.  
High-limit.  
10. If removing the high-limit, remove the  
screws securing it to the wireway box.  
Mark and remove the wiring from the high-  
limit housing.  
High-limit.  
11. Reverse steps to install new temperature probe or high-limit. If reinstalling high-limit, ensure the  
capillary tube is properly routed around the temperature probe before tightening (see photo, Step  
#8). Reconnect wiring removed from defective high-limit.  
1-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
IMPORTANT (High-Limit): When installing new high-limit, ensure the capillary tube and  
bulb are positioned properly with the mounting hardware installed prior to tightening the  
compression nut. Once tightened, the capillary tube cannot be repositioned.  
IMPORTANT (Temperature Probe):  
When installing new temperature probe,  
ensure probe is positioned properly with the  
mounting hardware installed (current  
production systems), or 1/8" from frypot  
bottom (older systems), prior to tightening  
the compression nut. Once tightened, the  
probe cannot be repositioned.  
In older fryers, ensure probe tip is 1/8" from  
frypot bottom for proper temperature sensing.  
Frypot Bottom  
1.7.2 Removing/Replacing Rocker Switches  
1. Disconnect the fryer from the electrical supply.  
2. If switches are located on front panel or control box, remove the screws securing panel. Do not  
allow the panel to hang on the switch wiring harness; use some type of support.  
3. Depress the retaining clips (see illustration below) and push the switch out of the slot. If there is  
a switch-guard present, retain it for installation of the replacement switch.  
W h e n c o n n e c t i n g wi r e s t o  
replacement switch, pass the wires  
through the switch guard (if  
applicable) before connecting to  
switch.  
Depress clips on each  
end to remove switch  
from control panel.  
4. Remove wires one at a time from the switch being removed and connect to the replacement  
switch until all wires are transferred.  
5. Reverse the above steps for reassembly.  
1-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.7.3 Replacing the Gas Valve  
DANGER  
Drain the frypot or remove drain valve handle to prevent accidental opening before  
proceeding further.  
1. Disconnect fryer from electrical and gas supplies.  
2. Disconnect the wires from the gas valve terminal block, marking each wire to facilitate  
reconnections. For 120VAC gas valves, disconnect the black wire from the high-limit, then  
remove the bombtail connecting the white wire.  
3. Remove the high-limit thermostat wire from the gas valve pilot coil (all but 120VAC  
valves).  
4. Remove the pilot gas line fitting from the gas valve.  
5. Remove the pipe union collars to the left and right of the gas valve and remove the valve.  
6. Remove the pipefitting from the old gas valve and install on the replacement valve, using  
Loctite PST567 or equivalent pipe thread sealant on threads. Do not apply sealant to the  
first two pipe threads. Doing so will clog and damage the gas valve.  
7. Reverse steps 1-5 to install the replacement gas valve.  
1.7.4 Replacing the Pilot Assembly or Direct Spark Ignitor  
1.7.4.1 Replacing Pilot Assembly  
1. Remove the burner shield from the burner-box slots.  
2. Remove the pilot tubing from the bottom of the pilot assembly.  
3. Remove the mounting screw from the pilot mounting-bracket and remove the pilot.  
4. Reverse the procedure to replace the pilot assembly. Ensure the replacement assembly is  
properly positioned above the center burner tube before tightening mounting-bracket screw.  
NOTE: The above procedure is applicable to standing pilot assemblies only.  
1-12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.7.4.2 Replacing Direct-Spark Ignitor Assembly (Units with Electronic Ignition Only)  
1. Remove the burner shield from the  
burner-box slots.  
2. Disconnect sense wire and ignition cable  
from the ignitor.  
3. Remove the mounting screw from the  
ignitor mounting-bracket and remove the  
ignitor.  
4. Reverse the procedure to replace the  
ignitor assembly. Ensure the ignitor is  
properly positioned in relation to the  
center burner before tightening mounting  
screw.  
Ensure ignitor is properly positioned (arrow) over  
NOTE: The above procedure is  
the center burner prior to tightening the mounting  
screw.  
applicable to fryers equipped with  
electronic ignition systems only.  
1.7.5 Removing/Replacing Blower Assembly or Air Prover Switch  
1. Remove back panel. On systems with  
built-in filtration, use care not to damage  
the oil-return heat-tape wiring insulation  
when removing backs (multi-batteried  
systems after 02/03 have two-piece back  
panels; remove both to access blower  
assembly).  
Multi-batteried systems after 02/03 have upper  
and lower back panels, which must be removed  
to access the blower assembly (fryer above  
shown with upper back panel removed).  
1-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
2. Remove blower assembly by removing  
four screws (two screws securing the flue  
outlet to the firebox, and two screws  
securing the blower inlet housing to the  
firebox). Pull the assembly out of the slot  
and lower to the side. Do not remove the  
electrical connections at this time.  
3. If replacing air prover switch, remove  
junction box cover, mark and disconnect  
wiring to the switch. Remove screws  
securing the switch to the junction box,  
and then remove the switch from the  
blower housing.  
Install new switch,  
ensuring the switch flap is correctly  
positioned in the blower housing.  
Reattach wires removed from old switch  
and replace box cover.  
After removing screws (arrows), remove blower  
assembly from firebox by pulling outward.  
4. If replacing blower, remove junction box  
cover, mark and disconnect each wire, and  
remove conduit fitting from junction box.  
Reinstall conduit fitting on new blower  
and reconnect wiring. Replace box cover.  
5. Reverse steps 1 – 4 to reinstall blower  
assembly.  
Blower junction box wiring. Mark wire locations  
before disconnecting each wire.  
1-14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.7.6 Replacing the Frypot  
Unit should be at room temperature, disconnected from gas and electrical service, and empty of oil  
or shortening prior to beginning procedure.  
1.7.6.1 Frypot Baffle Inspection  
1. Remove cabinet door(s) by holding door and lifting up on hinge pin. Current production model  
doors have spring-loaded pins that must be disengaged from the control panel and the bottom  
hinge. Remove marine edge (if applicable) by lifting up and off topcap and set aside.  
2. The burner-tube retainer strip and burner tubes must be removed from the frypot/firebox being  
inspected. Remove the burner-tube shield and the burner-tube retainer from the burner-box and  
set aside. Lift the burner tubes up over each orifice and then pull outward to remove.  
3. Disconnect the pilot gas-supply tube and  
remove the pilot assembly (without  
electronic ignition), or disconnect the  
sense wire and ignition cable and remove  
the direct-spark ignitor assembly (with  
electronic ignition). Inspect frypot baffles  
for signs of burn-through or damage. If  
baffle burn-through or damage is visible,  
proceed to the next section. If not, and no  
further service to frypot/firebox is  
required, reverse the above steps to  
reassemble the fryer.  
Inspect frypot baffles through burner tube opening  
(arrow) for signs of burn-through or damage.  
1-15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.7.6.2 Frypot/Firebox Removal/Replacement Procedure  
1. Perform Procedure 1.7.5, Removing/Replacing Blower Assembly or Air Prover Switch, Steps 1  
– 4.  
2. Disconnect the union at the gas valve.  
Remove four bolts connecting the burner  
manifold brackets to the burner box.  
Remove the burner manifold assembly  
and set aside.  
3. Mark and disconnect drain-valve  
Disconnect  
union at gas  
valve and  
remove four  
bolts (two per  
side) to  
microswitch wiring. Remove elbow or  
drain-tee assembly, and then remove the  
drain valve/microswitch assembly.  
remove burner  
manifold.  
Remove drain  
elbow and  
drain valve  
assembly from  
the frypot.  
Disconnect union at gas valve and remove four  
bolts connecting burner manifold brackets to  
firebox, elbow and drain valve assembly from  
frypot.  
4. Remove two screws from control panel and lower, using care not to stretch or distort  
switch/indicator light wiring (if applicable). If control panel is equipped with switches (see  
Section 1.7.2, Removing/Replacing Rocker Switches, for detail), or indicator lights, mark and  
disconnect wiring and set control panel aside.  
Note: If equipped with indicator lights, use a pin-pusher to remove pins from main-harness  
connector, and then remove control panel.  
5. Perform Procedure 1.7.1, Remove/Replace Temperature Probe or High-Limit Thermostat, Steps  
7 – 11.  
1-16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
6. Remove two screws securing topcap to  
wireway box. Remove topcap. Remove  
four screws securing wireway box to fryer  
cabinet (arrows) and carefully lower  
wireway box out of the way. Use care not  
to stretch or distort the wiring.  
7. Remove two screws from the firebox heat  
shield (arrows), remove heat shield and  
set aside.  
NOTE: Steps 8 and 9 must be  
performed prior to frypot removal,  
especially on systems with built-in  
filtration. Failure to perform these  
steps will make frypot removal  
extremely difficult, and cause possible  
damage to firebox components during  
removal.  
Remove topcap, wireway box and front heat  
shield to access firebox and frypot.  
8. Remove the burner box baffle by pushing  
the baffle up into the burner box until the  
baffle studs are clear of the slots. Tilt the  
baffle at an angle and remove it from the  
burner box.  
9. Remove screws (two) securing the flame  
spreader to the burner box. Allow the  
spreader to drop down to clear the frypot  
baffles.  
After removing burner-box baffle, remove screws  
(two) securing the flame spreader to the burner  
box. Allow the flame spreader to drop down in the  
burner box to clear the frypot baffles. Repeat for  
both sides.  
1-17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
10. Remove firebox back, along with  
insulation from back of frypot. From the  
rear of the unit, use a prying bar to  
carefully pry the top assembly from the  
frypot and cabinet frame (single units  
only), and set aside. (The top assembly is  
secured to the frypot with high-temp  
silicone sealant.) On systems, remove  
individual pieces on the frypot being  
removed.  
Use a prying bar  
to remove top  
assembly from  
frypot (single  
units only).  
11. Pull the frypot back and up to remove. On  
fryers with built-in filtration systems,  
ensure the front oil-return inlet is clear of  
the firebox front before lifting frypot out  
of cabinet.  
Remove the  
firebox back and  
insulation from  
back of frypot.  
If the Firebox Requires Replacement:  
12. Remove screws (12) securing the firebox  
to the cabinet braces (arrows). Lift the  
firebox assembly back and up to remove  
from cabinet.  
Remove screws (arrows) securing the firebox to  
the cabinet.  
1-18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
13. Install new firebox into cabinet. Replace  
screws (12) removed during removal of  
the old firebox. Use spray adhesive (Zep  
Aero Tac High-Strength Spray Adhesive  
or equivalent) to install new insulation in  
firebox bottom as shown. The insulation  
must not go above the top of the burner-  
box center flange.  
NOTE: Ensure the strip of insulation is  
properly affixed to the front blower-  
housing flange (arrow) prior to installing  
frypot. Failure to install the insulation  
strip will result in frypot-baffle burnout,  
blower damage and fryer malfunction,  
and will void all applicable warranties.  
Install new insulation in firebox using spray  
adhesive, ensuring good contact between  
insulation and metal surfaces.  
14. Install new frypot, using care not to  
damage the firebox insulation. Ensure  
the blower-housing insulation strip  
remains in place after installing the new  
frypot (arrow).  
Reverse the above steps to reassemble the  
fryer. Use high-temp silicone to re-install  
the top assembly (single fryers) or joiner  
strips, flue caps, etc. (systems).  
Ensure blower-housing insulation strip remains in  
place after installing the new frypot (arrow).  
1.8 Troubleshooting and Problem Isolation  
This section is intended to provide technicians with a general knowledge of the broad problem  
categories associated with this equipment, and the probable causes of each. With this knowledge,  
the technician should be able to isolate and correct any problem encountered.  
Problems you are likely to encounter with 24G Series Flatbottom fryers can be grouped into five  
categories:  
1. Ignition failures  
4. Filtration problems  
5. Leakage  
2. Improper burner functioning  
3. Improper temperature control  
1-19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
The probable causes of each category are discussed in the following sections. Troubleshooting  
guides are included in Section 1.9 to assist in identifying some of the more common problems.  
1.8.1 Ignition Failures  
Ignition failure occurs when the ignition module fails to sense a flame within the 11-second time  
delay period and locks out. Turn the fryer off, locate and correct the problem, then turn fryer back  
on to clear the module lock.  
There are three primary reasons for ignition failure, listed in order of probability:  
1. Problems related to the gas and/or electrical power supplies.  
2. Problems related to the electronic circuits.  
3. Problems related to the gas valve.  
Problems Related to the Gas and/or Electrical Power Supplies  
The main indicators of this are that an entire battery of fryers fails to light. Verify that the quick  
disconnect hose is properly connected, the fryer is connected to power, the main gas supply valve is  
open, and the circuit breaker for the fryer electrical supply is not tripped. Some fryers are equipped  
with a fryer reset-switch that must be reset each time the fryer is turned off.  
Problems Related to the Electronic Circuits  
If gas and electrical power are supplied to the fryer, the next most likely cause of ignition failure is a  
problem in the 24 VAC circuit of fryers equipped with electronic ignition systems, or in the pilot  
system for those without electronic ignition. If the fryer is equipped with an Under Fryer Filter  
(UFF) filtration system, first verify that the drain valve is fully closed. (The valve is equipped with a  
microswitch that must be closed for power to reach the gas valve. Often, although the valve handle  
appears to be in the closed position, the microswitch is still open.) If the valve is fully closed, or the  
fryer does not have a filtration system, refer to the troubleshooting guides in this chapter.  
Problems Related to the Gas Valve  
If the problem is not in the 24 VAC circuit or pilot system, it is most likely in the gas valve itself, but  
before replacing the gas valve refer to the troubleshooting guides in this chapter.  
1-20  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.8.2 Improper Burner Functioning  
With problems in this category, the burner ignites but exhibits abnormal characteristics such as  
"popping", incomplete lighting of burner, fluctuating flame intensity, and flames "rolling" out of the  
fryer.  
"Popping" indicates delayed ignition. In this condition, the main gas valve is opening but the burner  
is not immediately lighting. When ignition does take place, the excess gas "explodes" into flame,  
rather than smoothly igniting.  
The primary causes of popping are:  
Incorrect or fluctuating gas pressure  
Misdirected or weak pilot flame (non-electronic ignition)  
Clogged burner orifices  
Clogged burners  
Inadequate make-up air  
Heat damage to the controller or ignition module  
An out-of-adjustment ignitor or broken ignition wire  
A defective ignition module  
If popping occurs only during peak operating hours, the problem may be incorrect or fluctuating gas  
pressure. Verify that the incoming gas pressure (pressure to the gas valve) is in accordance with the  
appropriate CE or Non-CE requirements listed in the Installation and Operation manual that came  
with the fryer, and that the pressure remains constant throughout all hours of usage. Refer to  
Adjusting Burner Manifold Pressure in Section 1.4 if burner manifold pressure is suspected of  
being incorrect.  
If popping is consistent during all hours of operation, verify that the pilot is properly positioned  
above the burner orifice and that the pilot pressure is correct. Correct pilot pressure is indicated by a  
flame 1 to 1½" long. Refer to Section 1.5 for pilot adjustment procedure.  
On systems equipped with electronic ignition, verify that the ignitor is properly adjusted (electrode  
tip and ignitor positioned properly over middle burner).  
Clogged burners and burner orifices are also likely causes of delayed ignition. Clogged burners are  
indicated by uneven flame or partial flame on the burner face. Clogged orifices are indicated by no  
flame.  
Another cause of popping is an insufficient air supply or drafts that are blowing the pilot flame away  
from the burner. Check for "negative pressure" conditions in the kitchen area. If air is flowing into  
the kitchen area, more air is being exhausted than is being replenished and the burners may be  
starved for air.  
1-21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
If the fryer’s gas and air supplies are okay, the problem most likely is with one of the electrical  
components. Examine the ignition module for signs of melting/distortion and/or discoloration due to  
excessive heat build-up in the fryer. (This condition usually indicates improper flue performance.).  
Also, examine the controller for the same conditions. A melted or distorted ignition module is  
automatically suspect and should be replaced, but unless the condition causing excessive heat in the  
fryer is corrected, the problem is likely to recur.  
Next, ensure the ignition wire is connected properly at both ends and examine it for obvious signs of  
damage. Again, if damage is due to excessive heat in the fryer, that problem must also be corrected.  
DANGER  
MAKE SURE YOU ARE HOLDING THE INSULATED HANDLE OF THE SCREWDRIVER  
AND NOT THE BLADE. THE SPARKING CHARGE IS APPROXIMATELY 25,000  
VOLTS.  
Check for proper operation by disconnecting the wire from the ignitor, inserting the tip of a  
screwdriver into the terminal, and holding it near the frame of the fryer as the power switch is placed  
in the "ON" position. A strong, blue spark should be generated for at least 11 seconds.  
Fluctuating flame intensity is normally caused by either improper or fluctuating incoming gas  
pressure, but may also be the result of variations in the kitchen atmosphere. Verify incoming gas  
pressure in the same way as for "popping", discussed in the preceding paragraphs. Variations in the  
kitchen atmosphere are usually caused by air conditioning and/or ventilation systems starting and  
stopping during the day. As air conditioning/ventilation systems start and stop, the pressure in the  
kitchen may change from positive or neutral to negative, or vice versa. Changes in airflow patterns  
may affect flame intensity.  
Flames "rolling" out of the fryer are usually an indication of negative pressure in the kitchen. Air is  
being sucked out of the fryer enclosure and the flames are literally following the air. If negative  
pressure is not the cause, check for high burner-manifold gas pressure in accordance with the  
procedures in Section 1.4. An obstructed flue or a faulty blower, which prevents the fryer from  
properly exhausting, may also be the cause.  
Excessively noisy burners, especially with flames visible above the flue opening, may indicate that  
the burner gas pressure is too high or the gas valve vent-tube is blocked (if applicable). If the gas  
pressure is correct, and the vent-tube is unobstructed (if applicable), the gas valve regulator is  
probably defective.  
1-22  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.8.3 Improper Temperature Control  
Temperature control, including the melt cycle, is a function of several interrelated components, each  
of which must operate correctly. The principal component is the temperature probe. Depending  
upon the specific configuration of the fryer, other components may include the Thermatron board,  
the controller itself, and the ignition module.  
Improper temperature control problems can be categorized into melt cycle problems and failure to  
control at setpoint.  
Failure to Control at Setpoint  
In fryers equipped with a Thermatron temperature controller, the #1 problem may be with the  
temperature probe improperly positioned. Other causes may be the Thermatron board or the  
potentiometer. Possible causes are that the potentiometer is out of calibration, or the temperature  
probe or Thermatron board is defective. Refer to Section 1.6 for instructions on calibrating the  
Thermatron temperature controller.  
1.8.4 Filtration Problems  
Whenever the complaint is "the pump is running, but no oil is being filtered", check the filter paper  
or filter leaf (screen) connections and ensure they are properly connected. Ensure the filter paper or  
filter leaf is not clogged with food debris or sediment, and is properly assembled.  
If the pump motor overheats, a circuit breaker in the filter circuit will trip and the motor will not start  
until it is reset. If the pump motor does not start after pressing the circuit breaker, press the red reset  
switch located on the rear of the motor. If the pump then starts, something caused the motor to  
overheat. Maybe several frypots were filtered one after the other and the pump got hot. Letting the  
motor cool down for at least a half-hour is all that is required in this case. More often, the pump  
overheated for one of the following reasons:  
Shortening was solidified in the filter leaf or filter lines.  
The operator attempted to filter unheated oil or shortening. Cold oil and shortening are thicker  
and cause the pump motor to work harder and overheat.  
If the motor runs but the pump does not, there is a blockage in the pump. An incorrectly assembled  
filter leaf allows food particles and sediment to pass through the filter pan and into the pump. When  
sediment enters the pump, the gears bind up causing the motor to overheat, tripping the thermal  
overload. Solidified shortening in the pump will produce the same result.  
1-23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
A pump seized by debris or hard shortening must be disassembled, cleaned and reassembled as  
follows:  
1. Disconnect power to the filter system.  
2. Remove the front cover of the pump to access the gears inside, if the pump is accessible while  
still inside the cabinet. If the front cover is not accessible, the pump must be removed from the  
pump motor (remove input/output plumbing from the pump prior to removing pump). Remove  
setscrews to disengage the pump from the motor.  
Remove these bolts (6) to  
remove pump cover.  
Remove debris or hardened  
shortening to free gears.  
3. Prior to reassembly, the inside housing must be clean and free of any sediment or debris. Failure  
to completely clean the inside housing and ring gear will cause gear binding after reassembly.  
4. During reassembly, partially install the housing bolts in a star pattern, leaving a -inch (3.18  
mm) gap between the cover and housing flanges. Ensure there is no shortening or oil in the filter  
pan, and that the filter pan is disconnected. With the motor running slowly draw the cover in,  
evenly tightening the housing bolts. When the cover is snug on the housing tighten all bolts to  
15 inch-lbs (1.7 Nm) ensuring that the pump is working correctly. Turn the motor off.  
An incorrectly assembled or damaged filter leaf will allow food particles and sediment to pass  
through and clog the pump. Particles large enough to clog the pump may indicate that the crumb  
tray is not being used, and that the filter leaf is not properly assembled.  
The electronics of the SUFF/UFF filtration systems are simple and straightforward. Microswitches,  
attached to handles for each vat and wired in parallel, provide the 24 VAC required to activate the  
pump relay coil when the handles are moved to the ON position. The activated pump relay coil pulls  
in the pump motor switch, supplying power to the pump motor.  
Filter systems equipped with oil-return heaters are wired into the 120 VAC source, which remain  
energized as long as the unit is plugged in.  
1-24  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.8.5 Leakage  
Frypot leaks are usually due to improperly sealed high-limit, temperature probe or oil-return and  
drain fittings. When installed or replaced, each of these components must be sealed with Loctite  
PST567 sealant or equivalent to prevent leakage. In very rare cases, a leak may develop along one  
of the welded corners of the frypot. When this occurs, the frypot must be repaired or replaced.  
Frypot locations (indicated by arrows) where potential leaks could occur.  
1-25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.9 Troubleshooting Guides  
FACTORY APPROVAL MUST BE OBTAINED PRIOR TO ANY WARRANTY WORK BEING  
DONE OR DEAN CANNOT BE HELD RESPONSIBLE.  
The following procedures must be performed by Factory Authorized Service Technicians, and are  
provided as an aid to expedite troubleshooting and repair of 24G Series frying systems.  
1.9.1 Pilot Burner Malfunctions  
PROBLEM  
CORRECTIVE ACTION  
1. Ensure the combination gas valve is in PILOT position and that  
gas is available at the control valve (check quick-disconnect  
and/or gas-line connections).  
Pilot will not ignite; no  
evidence of gas at pilot  
burner.  
2. Remove pilot gas supply line and check for dirt. Blow out with  
compressed air if necessary, then reinstall.  
3. Check pilot burner orifice for dirt.  
1. Check that the lead from the thermocouple is tightly screwed  
into the pilotstat power bushing on the gas control.  
Pilot burner ignites but  
will not remain lit when  
gas knob is released.  
2. Remove end of thermocouple lead from pilotstat power unit  
bushing and clean with fine sandpaper. Also check that  
bushing is clean.  
3. Thermocouple possibly defective (millivolt output should be 12-  
28mv); replace.  
4. Pilot flame may be adjusted incorrectly. Adjust flame to 1-½"  
high by turning pilot flow adjustment screw.  
1. With the exhaust blower in operation, the extra air causes the  
pilot to blow out. The pilot assembly may be too low between  
the burners. Adjust the pilot assembly to where the pilot hood  
is above the burners.  
Pilot burner ignites  
properly and burns  
properly, but goes out  
when the exhaust  
blower comes on.  
2. Pilot flame may be adjusted too high and is on the verge of  
blowing out. Re-adjust lower.  
3. Pilot flame may be adjusted too low, even though it appears to  
be satisfactory. Re-adjust higher as described earlier.  
1-26  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.9.2 Main Burner Malfunctions  
PROBLEM  
CORRECTIVE ACTION  
1. Check that the combination gas valve is ON.  
Main burner will not  
come on even though  
air blower is in  
operation; no gas  
pressure at main  
burner.  
2. Check that the pilot is lit and is operating properly.  
3. Check high temperature safety switch. Replace if defective.  
4. Check air prover switch (sail switch) as follows:  
Move actuating lever at switch to ensure it is not dragging in  
the slots (use long tool to avoid burns). If so, bend the arm  
carefully to clear the obstruction. Check the air prover switch  
for continuity and replace if defective.  
1. Cooked product or other material may have fallen into the flue  
and lodged in the blower wheel, preventing it from turning.  
Clean out flue and blower wheel.  
Air blower is not  
operating, although  
power is present at the  
fryer.  
2. Blower motor may have overheated and shut off. This  
condition will correct itself when motor cools (20 minutes). If  
problems with blower overheating persist, call for service.  
3. If fryer is equipped with a Thermatron controller, the  
temperature probe or the controller board may be defective.  
1. Check gas pressure at the pressure tap of the burner manifold.  
Use a standard water-type U-gauge manometer. With the  
burner in operation, the pressure should be about 4" W.C. on  
natural and 11" W.C. on propane (LP) gases. If not, unscrew  
the cover of the pressure regulator adjustment and turn the  
adjusting screw clockwise to increase gas pressure (or  
counterclockwise to decrease the pressure). Replace cover  
and plug.  
Main burner flames are  
small and appear lazy;  
Oil does not come up  
to temperature quickly.  
1. Check the frypot for excessive build up of debris.  
There are signs of  
excessive frypot  
temperature;  
2. Check Thermatron controller; may be out of calibration. Re-  
calibrate in accordance with instructions in Section 1.6.  
oil becomes  
discolored quickly.  
3. Check gas pressure.  
4. Oil of inferior quality or used too long. Replace with quality oil.  
1-27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.9.3 Indicator Lights  
The fryer’s indicator lights serve a diagnostic purpose. All lights are lit when the fryer is working  
properly. (The green light on the control panel will cycle on and off as the fryer calls for heat). Use  
the following procedures to isolate problems indicated by light combinations.  
Turn the temperature dial to 400°F (204°C) to ensure the sensor will demand heat. Check all  
indicator lights in the fryer cabinet and on the control panel. [Older units may have power and reset  
switches with different colored lights (orange, amber, red, etc.). Substitute the light color of the old  
switch with the respective "green light" switch in the following troubleshooting procedures. The  
control panel light colors haven’t changed.]  
When turning the power switch "ON" and resetting the safety (reset) switch, check for the following:  
LIGHT INDICATION  
PROBABLE CAUSE  
CORRECTIVE ACTION  
GREEN LIGHT/POWER SWITCH IS 1. The drain valve is open.  
"ON"  
1. Ensure the drain valve is  
completely closed, and then  
turn the reset switch to "ON".  
GREEN LIGHT/SAFETY (RESET)  
SWITCH IS "OFF"  
2. The drain switch is defective.  
GREEN LIGHT/CONTROL PANEL IS  
"OFF"  
RED LIGHT/CONTROL PANEL IS  
"OFF"  
GREEN LIGHT/POWER SWITCH IS 1. No power to fryer.  
"OFF"  
1. Check power source, power  
cords and breaker. Ensure that  
electricity is available to the  
fryer.  
GREEN LIGHT/SAFETY (RESET)  
SWITCH IS "OFF"  
2. Fuse is blown.  
2. Replace fuse.  
GREEN LIGHT/ CONTROL PANEL IS  
"OFF"  
3. If fryer does not function after  
resetting the reset switch,  
RED LIGHT/CONTROL PANEL IS  
"OFF"  
3. Reset switch circuit defective.  
contact a Factory Authorized  
Service Center for assistance.  
1-28  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10 WIRING DIAGRAMS  
Note: The diagrams in this section depict wiring as of the date of manual publication.  
It may not reflect design changes made to the equipment after publication. Always  
refer to the wiring diagram affixed to the unit when actually troubleshooting this  
equipment.  
1.10.1 24G Series Single Fryers: Non-CE without Boil-Out Switch  
1-29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.2 24G Series Single Fryers: Non-CE with Boil-Out Switch  
1-30  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.3 24GTI With Drain Safety Switch, and Boil-Out Option Enabled- LJS  
1-31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.4 24GTI With Drain Safety Switch, and Boil-Out Option Enabled- 120V Non-LJS  
1-32  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.5 24GTI With Drain Safety Switch, and Boil-Out Option Enabled- 250V Non-LJS  
1-33  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.6 24GTI With Drain Safety Switch, and Boil-Out Option Disabled – KFC  
1-34  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.7 24GTI With Drain Safety Switch, and Boil-Out Option Disabled – Non-KFC  
1-35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.8 24G Series Single Fryers: CE-Approved  
N
B R  
P U  
R
T
W H  
B L  
U
N
G R  
B L K  
1-36  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 1: SERVICE PROCEDURES  
1.10.9 24GTI Oil Return/Filter System  
1-37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
THIS PAGE INTENTIONALLY LEFT BLANK  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.1 Blower Assembly, Combustion Air  
5
6
2
1
3
4
ITEM  
PART #  
COMPONENT  
1
Motor, Blower Assembly  
120V (Non-CE)  
230V (CE)  
Switch, Sail (Air Prover Switch)  
Duct Assembly, Inlet  
Gate, Air Flow  
Duct Assembly, Outlet  
Door, Outlet Duct Access 2424  
807-3573  
807-3920  
807-3746  
823-3162  
200-1428  
823-3166  
200-1471  
2
3
4
5
6
2-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.2 Burner Manifold and Related Components  
2 3  
2 2  
2-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
PART #  
810-2129  
200-1670  
810-2168  
COMPONENT  
Tube, Burner  
Support, Left or Right Manifold  
Burner Manifold Assembly  
1
2
3
4
Orifice  
810-2827  
810-2830  
813-0154  
813-0174  
813-0300  
813-0066  
813-0112  
813-0168  
2.82mm (#34) Natural Gas  
1.78mm (#50) Propane (LP) Gas  
Plug, -inch NPT (Manifold Pressure Tap Plug)  
Union, ¾-inch NPT Pipe  
Nipple, ¾-inch NPT X 4½-inch  
Elbow, 90° X ¾-inch NPT  
Nipple, ¾-inch NPT X 2-inch  
Elbow, 90° X ¾-inch NPT Street  
Valve, Gas  
5
6
7
8
9
10  
11  
807-3555  
807-3690  
810-2156  
810-2323  
810-0691  
813-0763  
813-0022  
813-0173  
813-0165  
813-0265  
813-0062  
813-0845  
24V Natural (G20/G25) Honeywell  
24V Propane (LP) (G31) Honeywell  
120V Natural (G20/G25) Robertshaw  
120V Propane (LP) (G31) Robertshaw  
Vent tube  
Bushing, ¾-inch NPT to ½-inch NPT  
Nipple, ½-inch NPT X Close  
Union, ½-inch NPT Pipe  
Elbow, 90° X ½-inch NPT Street (for single fryers, use 45° 813-0342)  
Nipple, ½-inch NPT X 2½-inch  
Elbow, 90° X ½-inch NPT  
Nipple, ½-inch NPT X 29¾-inch (single fryers, use 24½-inch 813-0788, 813-0729 23”)  
Electronic Ignition Components  
Ignitor and Flame Sensor Assembly (does not include flame sensor wire or cable)  
Ignitor Bracket, Flat Style (After Oct 04)  
Ignitor Bracket with bends (used prior to Oct 04.)  
Flame Sensor Wire  
*
12  
13  
14  
15  
16  
17  
18  
19  
*
*
807-3556  
106-4580  
210-6184  
106-1645SP  
106-1644SP  
807-0918  
826-1389  
809-0823  
807-3551  
*
20  
21  
22  
23  
*
Ignition Cable (includes 807-3742 cable and 807-3484 Rajah connector)  
Module, Ignition (Spark Module) 11 sec. Honeywell  
Screw, ¼-20 X ¾-inch (Pkg. of 10)  
Nut, ¼-20 Nylock  
Transformer, Electronic Ignition  
Pilot Ignition Components  
24  
Pilot Burner  
106-0849SP  
810-2400  
812-1286  
Non-CE Natural Gas (includes burner, thermocouple, gas line and bracket)  
Non-CE Propane (LP) Gas #16 (Orifice Only)  
CE Natural Gas (G20/G25)  
25  
Thermocouple  
807-3550  
810-0703  
200-1416  
Non-CE (use 812-1284 for CE Thermocouple)  
Gas Line, ¼-inch X 17½-inch  
Bracket, Pilot Support  
*
*
Piezo Ignitor Components (CE Units only)  
Trigger  
*
*
*
*
810-1001  
807-3540  
200-1868  
807-3650  
Electrode  
Bracket  
Lead, Trigger to Electrode  
*Not illustrated.  
2-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.3 Cabinetry  
2.3.1 Backs, Bases, Casters, Sides, Etc.  
2-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
PART #  
COMPONENT  
Back, Single Fryer Cabinet  
1
200-1608  
210-3006  
Standard 1824G (for 2424G, use 200-1500)  
Short Flue 1824G (for 2424G, use 200-2005)  
Panel, Left Side  
2
3
823-3459  
823-4349  
823-3490  
Stainless Steel  
Painted Mild Steel  
Filter-Ready Add-On Fryer  
Panel, Right Side  
823-3489  
823-4350  
823-3491  
210-2977  
210-1534  
200-2903  
823-4063  
Stainless Steel  
Painted Mild Steel  
Filter-Ready Add-On Fryer  
3a  
4
5
Cover, Side Panel Access  
Rail, 1824G Cabinet Back Support (for 2424G, use Item 13) older units  
Channel, 1824G Front and Rear Base  
Support, Caster  
6
7
Caster, 5-inch with Brake Swivel  
4-Hole Bolt Pattern  
810-0357  
810-2405  
Single Stud  
8
Caster, 5-inch without Brake Swivel  
4-Hole Bolt Pattern (for fryers with legs in front, use 810-0378 Rigid Caster)  
Single Stud  
Leg, 6-inch Adjustable  
Kit, Shim Caster (contains 8 shims)  
Shims, Caster 14 gauge  
Bracket, Drain Nipple Storage  
Hinge, Universal Door (for filter-ready units, use 200-1675)  
Back, Lower Cabinet  
810-0356  
810-2406  
810-2053  
826-1468  
900-2949  
200-1378  
200-4511  
*
*
*
9
10  
11  
200-4154  
200-4153  
200-4151  
200-1607  
210-1406  
823-3581  
823-3582  
200-2632  
200-2624  
823-4149  
200-5210  
200-2717  
200-2643  
200-3356  
200-5209  
200-4696  
823-4064  
810-1365  
Units with Built-in Filtration  
1824G Units without Built-in Filtration (for 2424G, use 200-4152)  
Back, 1824G Upper Cabinet (for 2424G, use 200-4150)  
Back, 2424G One-Piece (used on UFF units built before February 2003 only)  
Rail, 2424G Cabinet Back Support (for 1824G, use Item 4) older units  
Panel, Inner Cabinet (Left)  
Panel, Inner Cabinet (Right)  
Support, Inner Cabinet Panel Front  
Upright, Cabinet Rear  
Support, Flue  
Bridge, Filter Base  
Support, Filter Pump Motor  
Base, Filter  
Cover, Filter Base  
Brace, 2424G Rear Cross  
Channel, 2424G Left or Right Base  
Channel, Leg/Caster Support  
Caster with Brake, 3-inch Adjustable  
12  
*
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
106-2837SP Bracket, Filter Retainer  
* Not illustrated.  
2-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.3.2 Door Assemblies and Component Parts  
5
6
6
4
2
11  
3
10  
9
7
1
8
A
B
ITEM  
PART #  
809-0413  
106-2768  
106-2816  
COMPONENT  
Spacer, Nylon (Universal Door Bushing)  
**1824G Single-Pin Door Assembly (for 2424G, use 106-2769) 17.80”  
1824G Double-Pin Door Assembly (for 2424G, use 106-2782)  
Beg. 12/02 – 17.81”  
*
A
B
1
2
3
4
5
824-1138SP Panel, 1824G Single-Pin Outer Door (for 2424G, use 824-1147)  
200-4548  
810-0180  
809-0191  
809-0918  
810-1105  
200-1301  
Panel, 1824G Single-Pin Inner Door (for 2424G, use 200-4549)  
Handle, Door (use 210-9739 for Euro look Handle)  
Washer, ¼-inch Lock  
Screw, 10-24 X ½-inch  
Magnet, Door  
6
7
Hinge Pin, Door  
8
824-1146SP Panel, 1824G Double-Pin Outer Door (for 2424G, use 824-1147SP)  
9
10  
11  
200-4610  
826-1343  
Panel, 1824G Double-Pin Inner Door (for 2424G, use 200-4546)  
Spring, Door Hinge (qty. 10)  
106-4067SP Hinge Pin and Keeper Assembly, Door  
**Not illustrated.  
** For units without inner door panels (built from 1993-2002), use 106-1751 for 1824G fryers or  
106-1649 for 2424G fryers.  
2-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
THIS PAGE INTENTIONALLY LEFT BLANK.  
2-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.3.3 Flue Caps, Top Caps, and Related Components  
2-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
PART #  
106-3253SP  
106-1638SP  
823-4125  
823-4127  
106-2840SP  
210-6177  
COMPONENT  
Frame, Single Crumb Dump  
Frame, Double Crumb Dump  
Insert, Pan Crumb Dump ½ Size  
Tray, 12424 Single  
Cover, 1824G Frypot (use 106-2839SP for 2424G Frypot)  
Hanger, Basket  
Deflector, Flue Cap Oil  
1
2
3
4
5
6
7
823-3579  
210-8244  
210-8247  
210-8248  
210-8251  
210-8245  
210-8246  
210-8250  
210-8249  
For use on 1824G One-Piece Top Assembly (use 823-3474 for 2424G)  
For use on 1-1824G Fryer (use 823-210-8171 for 2424G)  
For use on 2-1824G with Crumb Dump  
For use on 2-2424G with Crumb Dump  
For use on 3-2424G with Crumb Dump  
For use on 18L/24R with Crumb Dump  
For use on 18R/24L with Crumb Dump  
For use on 2-24L/18R with Crumb Dump  
For use on 2-24R/18L with Crumb Dump  
Flue Cap  
8
823-4907  
For use on 1-1824G (use 210-7097 for LJS Short) (use 823-4908 for 2424G or  
210-7085 for LJS Short)  
823-4911  
823-4915  
823-4914  
823-4913  
823-4910  
823-4909  
210-4317  
210-4313  
210-4598  
823-3622  
823-3699  
210-2028  
823-3807  
For use on 2-1824G (use 823-4912 for 2424G)  
For use on 3-2424G (3-Vat 2424G)  
For use on 2-24/18R (3-Vat 24/18 System)  
For use on 2-24/18L (3-Vat 24/18 System)  
For use on 24L/18R 4-Vat 24/18 System  
For use on 24R/18L 4-Vat 24/18System  
Edge Strip, Frypot  
Joiner Strip (joins frypots within a system)  
Joiner Strip (joins one fryer system to another)  
Top Assembly, One-Piece Short Flue 1824G (use 106-1619SP for 2424G) 3.83”  
Top Assembly, One-Piece Standard Flue 1824G (use 823-3264 for 2424G) 9.94”  
Top Cap, 1-1824G (use 210-7082 for 2424G)  
Marine Edge for 1-1824G with Top Cap (use 823-3171 for 2424G)  
Marine Edge (L-Shaped End-Cap)  
9
10  
11  
12  
13  
14  
15  
16  
823-3497  
823-3969  
823-3495  
823-3496  
823-3964  
1-1824G Notched Both Ends (use 823-3195 for 2424G)  
2-2424G Notched Left End (use 823-3970 for notched right end)  
2-2424G Notched Both Ends  
3-2424G Notched Both Ends  
24L/18R 4-Vat Fryer Notched Left End (use 823-3965 for notched right end)  
Marine Edge (Solid End-Cap)  
17  
823-4136  
1-1824G Without Notches (use 823-4135 for FM emboss 2424G, or 823-4917  
for DEAN emboss)  
823-4137  
823-4054  
823-4139  
823-4150  
823-4152  
823-4056  
809-0477  
823-3542  
803-0209  
803-0293  
2-2424G Without Notches  
2-2424G Notched Left End (use 823-4058 for notched right end)  
3-2424G Without Notches  
3-2424G Notched Left End (use 823-4151 for notched right end)  
2-24/18L 3-Vat Fryer Without Notches  
24L/18R 4-Vat Fryer Notched Left End (use 823-4157 for notched right end)  
Screw, #10 x ¼ (used to attach Marine Edge)  
Pan, Batter with Lid  
Brush, Frypot Cleaning  
Gloves, Neoprene Hot Oil  
*
18  
*
*
* Not illustrated.  
2-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.4 Control Panels, Wireways, and Related Components  
2-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
1
PART #  
106-0882  
824-1140  
823-4001  
200-3167  
807-1597  
807-1321  
807-3536  
816-0217  
810-1164  
826-1359  
826-1366  
810-0045  
807-2469  
810-0678  
807-0125  
200-1671  
826-1371  
826-1680  
807-3559  
807-0800  
COMPONENT  
Probe, Thermostat Assembly, bottom 62.5” with connector (use 106-2607SP for 20” Top)  
Vent, 1824G Wireway (use 824-1139 for 2424G)  
Box, 1824G Wireway (use 823-4000 for 2425G)  
Box, Remote Thermatron Adapter  
Fuse, 3-amp Slow-Blow  
Holder, Panel-Mount Fuse  
Potentiometer, Temperature Control with spade terminals  
Paper, Terminal Block Insulating  
Terminal Block, 1-Piece Screwless  
Screw, 4-40 X ¾-inch Slotted Round Head (Pkg. of 25)  
Nut, 4-40 Keps (Pkg. of 25)  
Bushing. .875-inch  
Bushing, 1-inch  
Bushing, .375-inch  
Bushing, .50-inch  
Cover, Thermostat Entry  
Screw, #8 X .50-inch Slotted Hex Head (Pkg. of 25)  
Clamp, Plastic Wire (Pkg. of 8)  
Thermostat, 435°F High-Limit w/Manual Reset (use 807-3560 for 210°C CE units)  
Transformer, Filter 120V/24V 50/60Hz 50VA  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
*
106-2058SP Relay Assembly, Boil-Out and Latch (use 106-1648SP for Bracket Switch Assembly)  
807-3611  
807-3640  
807-3613  
200-1337  
106-1966  
816-0220  
807-2103  
106-2775  
809-0247  
200-4719  
809-0853  
809-0766  
826-2086  
809-0839  
809-0834  
210-3275  
802-2134  
816-0534  
210-1985  
820-0136  
820-0135  
210-3754  
210-2716  
807-3574  
807-3576  
807-3580  
106-1978  
106-4686  
200-4602  
210-2689  
802-2085  
200-3901  
200-3356  
807-3577  
Relay, Latch/Filter 24VAC Coil (Left Relay) (use 807-4114 for models after Oct 04)  
Relay, Boil Out 120VAC Coil (Right Relay)  
Spring, Relay Retaining  
Bracket, Oil Return Relay  
Socket Assembly, 24V Oil Return Relay (use 807-3612 for Relay Socket only)  
Insulation, Microswitch  
Microswitch, Straight Lever  
Plate Assembly, Microswitch Adjustment  
Nut, 8-32 Keps  
Plate, Interface Board Mounting  
Screw, 10-32 X 1.5-inch Slotted Pan Head  
Nut, 10-32 Hex Head  
Thermatron Board  
Screw, 8-32 X .75-inch Slotted Pan Head  
Nut, 8-32 Hex Locknut  
Faceplate, 1824G Thermatron Blank (use 210-3168 for 2424G)  
Label, Thermatron Faceplate  
Knob, Thermatron Control  
Faceplate, Single Fryer Thermatron Blank  
Faceplate with Label, Old-Style Single Fryer 5.17” H x 4.04” W  
Faceplate with Label, Old-Style SCF 3.13” H x 6.38” W  
Control Panel, 1824G Two-Switch (use 210-4977 for 2424G)  
Control Panel, 1824G Two-Lamp (use 210-2652 for 2424G)  
Switch, Power ON/OFF Rocker  
Switch, Momentary Reset  
Switch, Boil-Out  
Lamp Assembly, Red 120V 807-3581 lamp only (106-4687 230/250V)(106-4730 24V white)  
Lamp Assembly, Green 120V 807-3582 lamp only (106-4686 230/250V)(106-4729 24V)  
Box, Single Fryer Control  
Plate, Single Fryer Control Panel  
Label, Single Fryer Control Panel  
Lid, Single Fryer Control Box  
Cover, Single Fryer Control Box Access  
Circuit Breaker, 7 amp  
* Not illustrated.  
2-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.5 Filtration  
2.5.1 Under Fryer Filter (UFF) Components  
29  
26  
16  
26  
10  
a
29  
27  
26  
10  
a
28  
30  
10  
a
25  
Right-Flush configuration  
illustrated.  
10  
19  
23  
22  
2
19  
18  
21  
20  
106-1823SP Hose  
Assembly  
24  
4
19  
13  
3
18  
17  
8
16  
6
1
16  
35  
15  
14  
36  
7
34  
5
13  
12  
9
11  
10  
a
37  
33  
31  
32  
2-12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
PART #  
810-2100  
810-2098  
810-2245  
810-2173  
813-0735  
813-0632  
810-2762  
810-2562  
810-2313  
810-2307  
813-0613  
813-0614  
COMPONENT  
Motor, 120-230VAC -HP Filter Pump  
Pump, 8 GPM Filter Haight  
Hose, 16¾”x½”x½”Vacuum Filter Pan to Pump  
Disconnect- Female, ½-inch  
Reducer, ½-inch to -inch NPT Bell  
Elbow, -inch NPT Street  
Disconnect, -inch Female with Radial Collar  
Coupling, Flare Tubing  
Tubing, Flush (Right-Flush Configurations)  
Tubing, Flush (Left-Flush Configurations)  
Fitting, ½-inch X ½-inch 37° Flare  
Fitting, ½-inch X -inch 37° Flare  
1
2
3
4
5
6
7
8
9
*
10  
10a  
11  
106-3659SP Flush, Drain Valve Assembly, Complete  
810-2125  
201-6440  
200-6202  
106-3604  
807-2103  
816-0220  
901-2348  
902-2348  
810-2170  
813-0087  
813-0165  
813-0062  
813-0625  
813-0006  
813-0156  
813-0003  
813-0093  
813-0173  
813-0673  
813-0087  
813-0833  
810-2270  
813-0730  
813-0644  
813-0631  
Valve, -inch Flush  
Actuator Handle, Flush Valve (Left-Oriented Flush Valves Only)†  
Actuator Handle, Flush Valve (Right-Oriented Flush Valves Only)†  
Bracket Assembly, Microswitch Left Rear Flush (use 106-3682 for Right)  
Microswitch, Straight Lever  
Insulation, Microswitch  
Cover, Microswitch (Left-Oriented Flush Valves Only)†  
Cover, Microswitch (Right-Oriented Flush Valves Only)†  
Disconnect, ½-inch Male Quick  
Nipple, ½-inch X 1.50-inch NPT  
Elbow, ½-inch X 90° NPT Street  
Elbow, ½-inch X 90° NPT  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
Nipple, -inch X Close NPT  
Bushing, ½-inch to -inch NPT Hex  
Plug, ½-inch NPT Hex  
Tee, ½-inch NPT  
Nipple, ½-inch X 4-inch NPT  
Union, ½-inch NPT  
Nipple, ½-inch X 8.5-inch NPT  
Nipple, ½-inch X 1.5-inch NPT  
Nipple, ½-inch by 15.5-inch NPT  
Tubing, Filter Pump to Rear Oil Return  
Tee, -inch NPT  
Nipple, -inch X 1.5-inch NPT  
Elbow, -inch X 90° NPT  
Tubing, Rear Oil Return  
810-2262  
810-2308  
810-2528  
810-2691  
810-2692  
813-0452  
Tubing, 19.12”  
Tubing, 21.65”  
Tubing, 21.95”  
Tubing, 56.27”  
Tubing, 73.41”  
Plug, -inch NPT Pipe  
30  
2-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
31  
32  
33  
34  
35  
36  
37  
PART #  
823-4547  
816-0549  
200-6135  
813-0251  
809-0843  
809-0885  
826-1374  
COMPONENT  
Handle, Drain Flush W/A  
Sleeve, Blue Vinyl (Drain Flush Handle Cover)  
Bracket, Flush Handle (Mounts to Inner Panel)  
Nipple, ½-inch by 4.5-inch NPT  
Cotter Pin  
Washer, Flat -inch x 1-inch x .083”  
Screw, #10 - ½-inch Hex Washer Head (Pkg. of 25)  
* Not illustrated.  
Valve stem pointing to left- left-oriented; Valve stem pointing to right- right oriented.  
2-14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
5
4
3
2
1
ITEM  
PART #  
COMPONENT  
1
106-1693SP Filter Pan Caddy Assembly  
810-2807  
809-0428  
809-0823  
Caster, 2-inch Rigid (use 810-2805 for 2-inch Swivel Caster)  
Bolt, ¼-20 X ½-Inch Hex Head  
Locknut, ¼-20  
106-1692SP Filter Pan Complete (incl. Pan, Filter, Leaf, Crumb Basket and Lid) does not  
include item #1.  
2
3
823-3480SP Filter Pan With Fittings  
106-3675SP Filter Leaf with Compression Cap & Riser Connection 11” x 19”  
810-2700  
813-0867  
810-2760  
823-3509  
823-3492  
803-0002  
810-2759  
Quick Disconnect, -inch Male SS  
Riser Standpipe Nipple, -inch X 6.5-inch S/S  
Compression Cap with -inch NPT threads  
Crumb Basket  
Lid Assembly, Filter Pan  
Powder, Filter 80 Individual Packs  
Filter Screen Assembly only without standpipe parts.  
4
5
*
*
* Not illustrated.  
2-15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
THIS PAGE INTENTIONALLY LEFT BLANK.  
2-16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.5.2 ND90 Built-In Filter System Components  
NOTES: Early model 24G fryers were available only as single units. To create multi-fryer  
batteries, a number of single fryers were battered together with top connecting strips.  
To provide built-in filtration for these batteries, a filter (with a dump station above it) was placed  
somewhere in the middle, as shown in the photograph below. The filter system is referred to as the  
44210ND90, or simply as the ND90.  
The first generation filter returned the shortening to the frypot using a hose and wand assembly.  
Later versions used a so-called “hands free” plumbing assembly attached to the backsplash of the  
dump station.  
The ND90 filter option was discontinued in 1996 when the fryer design was changed to incorporate  
the Under Fryer Filter (UFF) system. A large number of ND90-equipped fryers were produced and  
Frymaster/Dean continues to support them with replacement systems and parts, with the exception  
that the “hands free” plumbing components are no longer available.  
A complete filter kit, illustrated below, may be ordered to replace existing ND90 filters in the field.  
The kit does not include the oil return hose and wand assembly. See page 2-19 for this part.  
Part Number 44210ND90003  
2-17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
NOTE: The parts illustrated below are available as individual parts only. See page 2-17 for the  
complete replacement filter assembly.  
2-18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
PART #  
823-3637  
810-2135  
810-2136  
COMPONENT  
1
2
3
4
Filter Frame Assembly  
Caster without Brake, 3-inch  
Caster with Brake, 3-inch  
Filter Pump and Motor Components  
Motor, 120/230V 1/3 HP Filter Pump  
Pump, 5GPM (use 810-2098 for 8GPM Pump)  
Seal, Shaft (O-Ring)  
Bolt, ¼-20 x ½-inch Hex Head (Motor Mount)  
Nut, ¼-20 Nylock (Motor Mount)  
810-2100  
810-2252  
810-2395  
809-0428  
809-0823  
809-0189  
200-3097  
200-3096  
823-4078SP  
810-2237  
106-1939SP  
823-3646  
823-3651  
810-2762  
816-0550  
813-0625  
813-0632  
810-2125  
230-0089  
813-0634  
813-0003  
813-0022  
810-0278  
813-0345  
810-2321  
810-2172  
813-0735  
810-2375  
813-0165  
810-2170  
810-2173  
813-0654  
823-3642  
201-3105  
202-3105  
813-0631  
810-2113  
106-1454SP  
210-3118  
824-1090  
807-3574  
807-3577  
807-1219  
807-1224  
813-0770  
813-0760  
813-0659  
809-0884  
816-0544  
823-3652  
200-1838  
Washer, ¼-inch Flat (Motor Mount)  
5
6
7
8
Holder, Hose  
Support, Pipe (Polish and Return Assemblies)  
Pan Assembly, ND90 Series  
Filter Leaf Assembly (includes leaf to pump plumbing and port fittings)  
Cover with Handle, Filter Front  
Holding Pan (for pan screen inserts)  
Insert, Pan Screen (two required for Item 49)  
Connector with Collar, -inch Female Quick Disconnect  
O-Ring, -inch Quick Disconnect (use 816-0545 for ½-inch)  
Nipple, -inch X Close NPT  
9
10  
11  
12  
*
13  
14  
15  
*
Elbow, -inch X 90° NPT Street  
Valve, -inch Ball  
Handle, Ball Valve  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
*
Elbow, ½-inch to -inch NPT Reduction  
Tee, ½-inch NPT  
Nipple, ½-inch X Close NPT  
Valve, ½-inch Ball  
Elbow, ½-inch X 45° NPT  
Hose Assembly, 7¾-inch (Polishing Hose)  
Connector, -inch Male Quick-Disconnect  
Reducer, ½-inch X -inch NPT Bell (used with Item 24)  
Hose Assembly, ½-inch X 32-inch  
Elbow, ½-inch X 90° NPT Street  
Connector, ½-inch Male Quick-Disconnect  
Connector without Collar, ½-inch Female Quick-Disconnect  
Nipple, ½-inch X 4-inch NPT  
Spreader Bracket Assembly  
Bracket, Left Spreader Assembly Holding  
Bracket, Right Spreader Assembly Holding  
Elbow, -inch X 90° NPT  
Hose, ½-inch X -inch X 61.5-inch Wash-Down  
Wand Assembly, Wash-Down Hose (use 810-2188 for wand only)  
Bracket, Support- Wash-Down Hose  
Box, Switch/Circuit Breaker  
Switch, Power ON/OFF Rocker  
Circuit Breaker, 120VAC 7-Amp (use 807-3538 for 230VAC 5-Amp)  
Receptacle, 120V 3-Wire  
Cordset, 120V 3-Wire  
Tee, 1½-inch X 1¼-inch Offset No Flush Drainpipe (use 813-0768 for units with flush)  
Tee, Drainpipe, 1½-inch X 1¼-inch (all except right end)  
Cap, 1½-inch Pipe (used with Item 41)  
Slip-Nut, 1½-inch Drainpipe  
O-Ring, Slip-Nut (two required per slip-nut)  
Drainpipe, 1.625-inch Flanged (to left-hand filter)  
Drainpipe, 1.625 x 17½-inch (use 200-1839 for 23½-inch)  
*
42  
43  
44  
*
* Not illustrated.  
2-19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.6 Frypot, Drain and Oil-Return Components  
2-20  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
ITEM  
PART #  
826-1823  
826-1822  
826-1828  
823-3934  
823-3174  
823-3190  
210-1409  
823-3504  
826-2036  
COMPONENT  
Frypot Kit, 1824G (Front Drain, Front Return) (use 826-1821 for 2424G)  
Frypot Kit, 1824G (Front Drain, w/o Filtration) (use 826-1820 for 2424G)  
Frypot Kit, 1824G (Rear Drain, Front Return) (use 826-1842 for 2424G)  
Divider, Frypot  
Plug, Frypot Drain  
Baffle, Secondary Air  
Spreader, Side Flame  
Firebox Assembly, 1824G (use 823-4062 for 2424G)  
Insulation, Pot FB  
1
*
*
2
3
4
5
6
*
*
KIT5505SP Kit, 1824G Firebox Insulation (use KIT5507SP for 2424G)  
*
*
*
7
8
9
10  
11  
12  
200-2731  
200-5186  
200-1546  
823-3170  
813-0868  
813-0732  
813-0765  
813-0391  
823-3463  
106-5211  
814-0047  
807-2104  
826-1366  
823-3603  
813-0143  
813-0760  
813-0686  
813-0165  
200-6587  
813-0632  
810-2125  
823-3465  
816-0548  
813-0614  
810-2556  
200-1845  
816-0544  
809-0884  
813-0768  
810-2276  
200-4725  
210-1433  
810-2164  
809-0102  
823-4548  
200-4505  
813-0070  
813-0662  
Back, 1824G Firebox (use 200-1391 for 2424G)  
Back, SCF 2424G Firebox  
Heat Shield, 1824G Front Firebox (use 200-1887 for 2424G)  
Guard, Firebox Bottom New Style  
Plug, 1½-inch NPT Pipe  
Nipple, 1½-inch X 2-inch NPT Toe  
Tee, 1½-inch X 1¼-inch X 1½-inch (all connections Female)  
Nipple, 1¼-inch X Close NPT (connects drain valve to tee)  
Valve with Microswitch Holder, 1¼-inch Drain (W/A prior to 9/21/04)  
Valve with Microswitch Holder, 1¼-inch Drain (W/A after 9/21/04)see pg.2-22  
Sleeve, Red Valve Handle  
Microswitch, Drain Valve Roller Lever (use 902-2348 for M/S Guard)  
Nut, 4-40 Keps (Pkg. of 25) (used to mount microswitch)  
Cap, 1½-inch NPT Pipe  
Nipple, 1¼-inch X 2½-inch NPT Toe  
Tee, 1½-inch X 1¼-inch X 1½-inch NPT Drain  
Cap, Drain Flush End (1824G Left)  
Elbow, ½-inch X 90° NPT Street  
Tube, 1-inch X 18½-inch Drain Manifold  
Elbow, -inch X 90° NPT Street  
Valve, -inch Oil Return Ball (use 200-1143 for Nut Retainer)  
Handle, UFF Oil Return  
Cap, Yellow Vinyl Oil Return Handle  
Fitting, ½-inch X -inch 37° Flare  
Tube, Front Oil Return  
Tube, 1-inch X 24½-inch Drain Manifold (use 200-1841 for 20” tube)  
O-Ring  
*
*
*
13  
14  
15  
16  
17  
18  
19  
20  
*
*
21  
22  
23  
24  
25  
26  
27  
28  
29  
*
Nut, Slip-Joint  
Tee, 1824G Right Drain Flush  
Nipple, UFF Drain Line, 1½-inch NPT x 3.69-inch  
Guard, Probe and High-Limit  
Clamp, Probe and High-Limit Bulb  
Spring, Temp Probe  
*
Screw, Temp Probe Clamp (Two Required)  
Retainer, Probe (used on units without Probe/High-Limit Bulb Clamp)  
Plate, Drain Nipple Closure  
Elbow, 1¼-inch  
Nipple, 1¼-inch x 5¾-inch  
30  
31  
32  
33  
* Not illustrated.  
2-21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.7 Drain Valve and Components  
ITEM  
PART #  
106-5211  
810-2052  
106-4526  
816-0220  
807-2103  
902-2348  
826-1366  
809-0988  
900-2936  
809-0540  
210-8558  
816-0211  
COMPONENT  
Valve Assembly, 18/24 Drain  
1
2
3
4
5
6
7
8
9
Valve, Drain 1¼-inch (1-inch Std. Port)  
Bracket Assembly  
Insulation  
Switch, Micro CE Straight Lever  
Cover, Safety Switch  
Nut, 4-40 KEPS Hex (Pkg. of 25)  
Washer, 1.00 OD x .525 ID Teflon  
Retainer, Nut Drain Valve  
Nut, ½-inch -13 Two way Hex Lock  
Handle, 2424 Drain Valve  
Sleeve, Plastic 1¼-inch Red  
10  
11  
2-22  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24G SERIES FLATBOTTOM GAS FRYERS  
CHAPTER 2: PARTS LIST  
2.8 Wiring Connectors, Pin Terminals and Power Cords  
3
1
2
5
4
6
7
8
9
10  
13  
12  
11  
ITEM  
PART #  
COMPONENT  
Power Cords  
*
*
106-0913SP  
106-0516  
Power Cord Assembly 120V 10’ 16 guage  
Power Cord Assembly 220/250V 15A 5’8” 14 guage  
Connectors  
1
2
3
5
5
6
7
8
9
10  
11  
12  
13  
807-1068  
807-0158  
807-0156  
807-0159  
807-0875  
807-1067  
807-0157  
807-0155  
807-0160  
807-0804  
826-1341  
826-1342  
807-2518  
2-Pin Female  
6-Pin Female  
9-Pin Female  
12-Pin Female  
15-Pin Female  
2-Pin Male  
6-Pin Male  
9-Pin Male  
12-Pin Male  
15-Pin Male  
Terminal, Female Split Pin (Pkg of 25)  
Terminal, Male Split Pin (Pkg of 25)  
Plug, Mate-N-Lock (Dummy Pin)  
* Not illustrated.  
2-23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Frymaster/Dean, 8700 Line Avenue, PO Box 51000, Shreveport, Louisiana 71135-1000  
Shipping Address: 8700 Line Avenue, Shreveport, Louisiana 71106  
TEL 1-318-865-1711  
FAX (Parts) 1-318-688-2220  
FAX (Tech Support) 1-318-219-7135  
SERVICE HOTLINE  
1-800-551-8633  
819-6031  
JUNE 2007  
PRINTED IN THE UNITED STATES  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Frymaster Toaster HLZ User Manual
Frymaster Fryer UHC P 2 yuva User Manual
Frymaster Fryer SR14E User Manual
Frymaster Fryer D50G User Manual
Frymaster Fryer BIH1721 User Manual