Pitco Frialator L22-345 manual Fryer Components Operation, Heating System

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Fryer Components Operation

Pitco Solstice and Solstice Supreme High Efficiency Gas Fryers

Fryer Components Operation

The SG and SSH fryer components function in specific order of operation. Knowing and understanding the sequence of fryer and components operation enables you to diagnose equipment failure more accurately.

Heating System

The unit is connected to line voltage:

If Fuse F1 on the relay board is good:

The A.C. indicator is illuminated.

The controller is supplied with 24 VAC.

With the drain valve handle closed, the proximity switch supplies 24 VAC to the drain valve interlock (DVI) input at the controller.

24 VAC is at the Side On (SO). relay COM contact.

The controller is turned ON:

The SO indicator on the relay board is illuminated.

The SO relay is energized, closing the circuit.

With the roll out switch and hi-limit in the closed position, the ignition module receives 24VAC at terminal 6 (24 VAC).

The ignition module:

Sends 24 VAC from terminal 3(PV) to the PV terminal on the gas valve.

Sends the igniter 15kv to spark.

Senses the flame once the pilot has lit and it sends 24 VAC at terminal 1(MV) and puts 24 VAC at the Heat Demand (HD) relay COM contact on the relay board. The HD relay on the relay board interrupts the 24 VAC supply to the gas valve until the controller calls for heat.

NOTE: When the controller is on, the pilot should always remain lit.

The controller calls for heat:

The HD indicator on the relay board is illuminated.

The HD relay is energized, closing the circuit sending 24 VAC to the MV terminal on the gas valve.

The computer is supplied with a 24 VAC heat feedback (HFB) signal.

SG/SSH Series Service Manual

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Contents High Efficiency Gas Fryers SG/SSH Series Solstice Service ManualL22-345R0 EQUIPMENT REFERENECE INFORMATION NoticeMAILING ADDRESS SHIPPING ADDRESS24V Model Table of ContentsTheory of Operation mV Model Troubleshooting and Problem IsolationFilter System Simplified Wiring Diagrams Wiring DiagramsTheory of Operation Heating System Fryer Components OperationFilter System Safety SystemOptional Basket Lift Controller Operational Modes Serial Numbers 24V Model 2. Slide button to solid state Accessing Fryer for Servicing4. Unplug all power cords 1. Press off button on control panelCleaning the Gas Valve Vent Tube Taking a Supply Gas Pressure Reading Checking the Burner Manifold Gas PressureSupply Pressure Table Removing Solid State Thermostat If Necessary Taking a Manifold Gas Pressure Reading Adjusting Pilot Pressure Adjusting Manifold Gas PressureManifold Gas Pressure Table 4.Tighten collet and replace knob cap Calibrating Solid State Thermostat2.With a 5/16 inch socket, loosen the collet 3.Rotate the knob to point at actual temperatureRemoving the Controller Front Panel Bezel Replacing the Controllers and Wiring HarnessRemoving the Solid State Wiring Harness 6. Remove the controller wiring harness Replacing the Relay Board and Paper Replacing the Ignition Module Replacing the Spinal Tap 8. Disconnect the connection from the valve Top View of Plugs Side View of PlugsReplacing an Igniter/Pilot Assembly 10. Remove the burner Replacing the Self‐Cleaning Burner Solenoid Replacing the Gas Valve SG/SSH Series Service Manual Replacing the Transformer Box 9.Remove the transformer Replacing the DVI Switch Replacing the Burners Replacing the Burner Assembly11. Remove the SCB runner tube Replacing the Burner Assembly SG/SSH Series Service Manual NOTE: For SSH models only Replacing the Frypot7. Remove the flange elbow 14. Remove the splash back by lifting up NOTE: Lifting the tank requires two 2 technicians Removing the Basket Lift Cover Replacing the Basket Lift ComponentsReplacing the Transformer Replacing the Basket Lift Driver Board Replacing the Basket Lift Actuator Adjusting the Magnetic Sensor5.Remove the top retaining bushing by unscrewing 9. Remove the actuator collar 8. Rotate up the actuator collarGas Conversion mV Model Taking an Incoming Supply Gas Pressure Reading Supply Pressure Table Taking a Manifold Gas Pressure Reading7 to 4. When adjustment is complete Thermopile mV Table Adjusting the ThermopileMeasuring Thermopile Taking a Millivolt ReadingHi-Limit Thermostat Replacing the Thermostat10. Remove and replace the temperature bulb 9. Apply Teflon paste to the fitting11. Finger tighten the fitting NOTES Calibrating the ThermostatReplacing the Hi‐Limit Thermostat Filter System Replacing the Return Valve Replacing the Flush Hose Assembly and Valve 11. Remove the nut using a 7/16 inch wrench 8. Slide the bracket to the back of the assembly9. Lift bracket out and slide forward piping 14. Remove the piping using a 15/16 inch wrenchon the valve and an adjustable wrench on the 12. Remove the handle1. Disconnect plug from pump box Replacing the Heat TapeRemoving Rear Mounting Bracket Replacing the Waste Oil and ComponentsRemoving the Check Valve 4. Remove the valve lever 7.Remove the valve using two adjustable wrenches6. Lift off the mounting bracket Removing the Filter Pump and Motor Replacing the Filter Pump and Motor8. Remove the bracket Replacing Seal Kit Removing the Filter Pump from the Motor Replacing the Return Switch 11. Pull the red return handle out of the fryer 4.Slide out the drain line Replacing the Drain Line or Gasket3. Slide off the drain manifold gasket 2. Lift off the drain manifold clampReplacing the Circuit Breaker Replacing the Pump Relay and Circuit BreakerReplacing the Pump Relay Troubleshooting and Problem Isolation Interpretation of Solid State Controller Lights Troubleshooting and Problem IsolationSolid State Thermostat Field Calibration Gas Valve Component TroubleshootingRoll Out Switch ProbeTransformer Drain Valve and Return Valve SwitchesIgnition Module Computer Control Relay BoardPrimary Solid State Control Digital Solid State ControlBackup Solid State Control Probe Resistance Chart Main Burner Orifice Size ChartModel Gas TypeOrifice Size Required at Other Elevations Orifice Size at Sea Level ChartWiring Diagrams Wiring Diagram – Full Vat with SCB Simplified Wiring DiagramsWiring Diagram - Twin Vat with SCB Wiring Diagram – Basket Lifts Wiring Diagram – Filter Motor 115V‐60Hz Wiring Diagrams – Filter Motor 208‐240V SG/SSH Series Service Manual L22-345R0 Notes