Frymaster FPHD manual Functional Description, GAS Information Altitudes of 2000 feet or less

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HIGH EFFICIENCY DECATHLON SERIES GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

1.1 Functional Description

High Efficiency Decathlon (HD) Series gas fryers contain a welded stainless steel frypot heated by gas flames diffused evenly through tubes built into the frypot.

Flames originate from orifices in a burner manifold positioned beneath stamped-steel burners. The burners are positioned in the tube openings at the front of the frypot. The diameter of the orifices differs for natural and LP gas as indicated in the accompanying table.

High efficiency burner and diffuser.

GAS INFORMATION (Altitudes of 2000 feet or less)

		INPUT	GAS	ORIFICE	ORIFICE		EQUIPMENT
	MODEL	INPUT	GAS	MM	ORIFICE	QTY	PRESSURE
		(BTU)	TYPE	(INCH)	PART NO.		MBAR	INCH W.C.
				(INCH)			MBAR	INCH W.C.

	HD50G	95	NAT	2.26(#43)	810-2938	4	10	4
	HD50G	95	LP	1.40(#54)	810-2939	4	27.5	10
			LP	1.40(#54)	810-2939	4	27.5	10

	HD60G	125	NAT	2.26(#43)	810-2938	5	10	4
	HD60G	125	LP	1.40(#54)	810-2939	5	27.5	10
			LP	1.40(#54)	810-2939	5	27.5	10

An electromechanical gas valve regulates gas flow to the manifold. HD Series gas fryers are equipped with either a 24V valve system. Unit configurations include either a pilot ignition system or an electronic ignition system.

1-1

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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 PressureMain Pilot Adjusting the Pilot FlameCalibrating the Thermatron 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 Panels Control Panel Options, Joiner Strips, and AccessoriesAccessories 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 Suction Manifold Assembly Microswitch Bracket Assembly, Oil ReturnOil Suction 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