Frymaster FPHD manual Accessing Fryers for Servicing, Thermostats

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HIGH EFFICIENCY DECATHLON SERIES GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

Thermostats

Different types of thermostats are used in High Efficiency Decathlon Series gas fryers, depending on fryer configuration.

Fryers equipped with a Thermatron use a dial to adjust temperature. In this configuration, the probe resistance varies inversely with the temperature. As the temperature rises, resistance decreases at a non-linear rate. A chart is located at the end of this chapter.

Fryers equipped with computer controls have a temperature probe. In this configuration, the probe resistance varies directly with the temperature. As the temperature rises, resistance increases at a rate of approximately 2 ohms for every 1°F (approximately 3.7 ohms for every 1°C). Circuitry in the computer monitors the probe resistance and controls burner firing when the resistance exceeds or falls below programmed temperatures (setpoints). The temperatures are programmed by means of a keypad on the face of the computer.

All HD Series gas fryers are equipped with a high-limit thermostat. In the event that the fryer fails to 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 450°F/232°C.

1.2 Accessing Fryers for Servicing

DANGER

Moving a fryer filled with cooking oil 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.

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.

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.

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Contents Hour Service Hotline Includes HD63/Red Robin and Common CabinetryMAY Page Computers FCC Table of Contents Page Functional Description GAS Information Altitudes of 2000 feet or lessPilot System Configuration Electronic Ignition ConfigurationControl Options Interface BoardsThermatron Board P/N Interface Boards Test Meter Setting Pins Test Results Indicates power from 12V transformerAccessing Fryers for Servicing ThermostatsRestraints Cleaning the Gas Valve Vent Tube if applicable Adjusting Burner Manifold Gas PressureAdjusting the Pilot Flame Calibrating the ThermatronMain Pilot Trailing PilotReplacing Fryer Components Replacing the ComputerReplacing the Temperature Probe Computer-equipped Fryers Replacing the Temperature Probe Computer-equipped Fryers Probe cannot be repositioned Installing the New Temperature Probe Replacing the High-limit ThermostatLocate the high-limit probe Capillary tube cannot be repositioned Replacing Rocker Switches Figure BReplacing Rocker Switches Replacing the Pilot Assembly Replacing the FrypotRemoving the joiner strip Removing gas manifold shield Removing bolts arrows securing flue to frypot Nut Valve Boot Clamp Remove the drain valve nut and attached Hardware Cutting frypot seal prior to frypot removal Lifting frypot from fryer Troubleshooting and Problem Isolation Ignition FailureElectronic Circuits Improper Burner FunctionImproper Burner Function Improper Temperature Control Improper Computer Function Improper Filtration Function Frypot Leakage Improper Basket Lift Function Bell-Crank Basket Lifts Troubleshooting Guides ProblemNot possible Wiring Diagrams High Efficiency Decathlon, Thermatron with Constant PilotRight/left sides are the same Computer with Constant Pilot CM4-S Wiring Dean Oil Return Wiring Dean Oil Return Wiring, with Solenoid Probe Resistance Charts High Efficiency Decathlon Series GAS Fryers Parts List High Efficiency Decathlon HD Primary ComponentsDecathlon HD50 Primary Components includes Scfhd units See Orifices, SectionSee Drain Manifold Components, Section Decathlon HD50 Primary Components includes Scfhd units Decathlon HD60 Primary Components includes Scfhd units 823-4692Flue Box Assembly also used on HD63 fryers Front, Flue Box Decathlon FPHD65 Primary Components Channel, Base 265 465 565 Cabinet Upper BackCabinet Lower Back Door Assembly, with Liner also used for HD63 fryers Orifices Natural OrificesPropane Orifices Control Panel Options, Joiner Strips, and Accessories AccessoriesControl Panels Joiner StripsOptional Components and Controllers Bezels HD/SCFHD50 SCFHD456 SCFHD60Interface Boards High Efficiency Decathlon Series GAS Fryers Parts List Drain Valve Assembly, 1 1 ⁄ 2 without Microswitch Drain Valve Assembly, 1 1 ⁄ 2 with MicroswitchFlush Oil Drain Line Oil Return Manifold Components Oil Return Manifold Components Oil Return Manifold Components Oil Return and Oil Flush Components Microswitch Bracket Assembly, Oil Return Oil Suction AssemblySuction Manifold Assembly Oil Suction Start FittingDescription Filtration Components SCFHD60 and SCFHD63 Series Fryers 106-7543Filtration Components FPHD65 Series Fryers Basket Lift Components Basket Lift Components Trough, Holster, & Cover Components Fasteners Screws, Nuts, Bolts Service Hotline