Frymaster FPD, SCFD manual Control Options

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DECATHLON SERIES GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

Electronic Ignition Configuration (cont.)

The module contains a 60-second time delay circuit and a coil that activates the gas valve. The ignitor assembly consists of a spark plug, a pilot, and a flame sensor element.

At start-up the ON/OFF switch is placed in the ON position, supplying 12 VDC to the heat control circuitry in the controller or computer and to one side of the heat relay coil on the interface board. If resistance in the temperature probe indicates the temperature in the frypot is below 180°F (82°C), the current flows through a melt cycle circuit where a timer switch alternately closes for 3 seconds and opens for 24 seconds. If the temperature is 180°F (82°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. NOTE: The listed melt cycle times and exit temperature pertain to the Compu-Fry computer only.

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 60 seconds to light the pilot flame. A flame sensor verifies that the pilot is lit by measuring the flow of microamps through the flame. If the pilot 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 current to the ignition module, resulting in closure of the gas valve.

NOTE: In September 2006, these modules were replaced with black Honeywell modules (Kit, 826- 2117). Operationally they are similar. The new modules have a 4.5 second delay before sparking and lockout at 90 seconds. Unlike previous modules, microamp readings on the new black modules will move up and down as the module pulses on and off and this is an indication that the module is functioning.

When installing the new modules into an older unit with a Fast GO board, a resistor (provided in module kit) is needed to adjust melt cycle to accommodate the 4.5 second delay.

Control Options

Decathlon Series gas fryers may be equipped with operating thermostat controls (optional backup- only; available with electronic thermostat or computer), Thermatron, or Compu-Fry computers.

In fryers equipped with Thermatron, the fryer is turned on and off by means of a rocker switch and the temperature is set by adjusting a potentiometer. An interface board is located in the component box (shield) behind the control panel (computer-equipped) or in a component box inside the cabinet (Thermatron-equipped).

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Contents Hour Service Hotline CFD, SCFD, FPDPage Computers FCC Table of Contents Finding Your WAY around the Dean Decathlon CE only Altitudes of 2000 feet or less Functional DescriptionNON-CE Altitudes of 2000 feet or less Pilot System Configuration Electronic Ignition ConfigurationControl Options Interface Boards Interface Board P/N Current Flow Through Interface Accessing 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 PilotBackup Operating Thermostat Optional Replacing Fryer Components Replacing the ComputerReplacing the Backup Thermostat if applicable Replacing the Temperature Probe Computer-equipped Fryers DrainsRemove burners to gain access to temperature probe Installing the New Temperature Probe Replacing the High-limit ThermostatRemove screws arrows securing high-limit to fryer Decathlon Series GAS Fryers Service Procedures Replacing Rocker Switches Switch GuardDecathlon Series GAS Fryers Service Procedures Replacing the Pilot Assembly Replacing the FrypotRemoving capping strip Removing flue cap Holding backup while unscrewing flare nut on oil-return line 19. a .5 drains Loosening burner bolts prior to burner removal Decathlon Series GAS Fryers Service Procedures Decathlon Series GAS Fryers Service Procedures Decathlon Series GAS Fryers Service Procedures Cutting frypot seal prior to frypot removal Troubleshooting and Problem Isolation Ignition FailureGas Valve Improper Burner FunctionDecathlon Series GAS Fryers Service Procedures Improper Temperature Control Improper Computer FunctionImproper Filtration Function Frypot Leakage Improper Basket Lift Function Bell-Crank Basket Lifts Improper Basket Lift Function Modular Basket Lifts Troubleshooting Guides Improper Basket Lift FunctionNot possible Wiring Diagrams Decathlon, Electronic Ignition, Current ConfigurationDecathlon, Dual Vat Thermatron Decathlon Series GAS Fryers Service Procedures Transformer Box Decathlon Interface Board Dean Oil Return Wiring OIL Return Micro Switch Filtration and Basket Lifts PBIOil Return, Left-hand, Normally Open Float Switch Basket Lift, with Timer CM4-S with Constant Pilot Chili’s Wiring Diagram Chili’s Wiring with SCF Filtration Decathlon Series GAS Fryers Parts List Decathlon Primary ComponentsDecathlon Series GAS Fryers Parts List Decathlon D20 Primary Components826-1871 Decathlon 20 Primary ComponentsDecathlon D50 Primary Components Decathlon D50 Primary Components 211-2787 Decathlon D60 Primary Components 826-2229Decathlon D60 Primary Components 106-1703SP Decathlon FPD65 Primary Components 823-3948SP212-4570 Decathlon D80 Primary Components 823-3494SPSee Optional Components, Section Decathlon D80 Primary Components Control Panel Options, Joiner Strips, and Accessories Control PanelsOptional Components and Controllers 16 17See Control Panel Options, Section Not illustrated Transformers & Component Boxes Multi-batteried Decathlons Part 823-3242To Drain 823-3221 Drain Valve ComponentsDecathlon Series GAS Fryers Parts List Flush Oil Drain Line Decathlon Series GAS Fryers Parts List Oil Return Manifold Components SCFD, CFD, & FPD65 Models ComponentOil Return and Oil Flush Components Oil Return and Oil Flush Components D & FPD65 ModelsOil Return and Oil Flush Components D & FPD65 Models Oil Suction Start Fitting2122 Microswitch Bracket Assembly, Oil Return Decathlon Series GAS Fryers Parts List UFF Filtration Components SCFD50 Series Fryers DescriptionUFF Filtration Components D60 and D80 Series Fryers UFF Filtration Components SCFD60 and FPD65 Series Fryers 106-1220SP Filter Pan ScfdUFF Filtration Components SCFD80 Series Fryers 823-3796 Suff Filtration Components CFD50 Series Fryers Suff Filtration Components D60 and D80 Series Fryers 823-3774Suff Filtration Components CFD60 and CFD80 Series Fryers 823-5420…2.10 Basket Lift Components D50, D60, and D80 Models Basket Lift Components D50, D60, and D80 Series Fryers Decathlon Series GAS Fryers Parts List Service Hotline
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