Computer control, Digital solid state control – Pitco Frialator Gas Fryers SG Serie User Manual
Page 82
Pitco Solstice and Solstice Supreme High Efficiency Gas Fryers
L22‐345 R1
82
Computer Control
NOTE: All controller test points are at connector P/J1 (closest connector to the controller).
With 24 VAC supplied to pin #1(24 VAC supply) and pin #5 (24 VAC input from DVI), the display reads “OFF”.
With the controller is turned on, there is a 24 VDC output at pin #9 (SO).
When the controller calls for heat, there is a 24 VDC output at pin #8 (HD) and a 24 VAC input at pin #6 (HFB).
If the controller does not receive the 24 VAC input at pin #6 in approximately 90 seconds, the controller displays
“HEAT FAIL” or “IGNITION FAILURE”. This indicates a break in the HD or HFB circuit.
To correct, do the following:
1. Check the hi-limit switch. Is it open or tripped?
2. Check the ignition module (sensing pilot flame, locked out, 24 VAC at MV terminal).
3. Check the HD relay on the relay board. Is the HD relay energized continuity through COM and NO contacts?
If display reads “PROBE OP” “OPEN”, Ω test the temperature probe. Check the wires and connectors
between the probe and controller for continuity.
If display reads “SYSTEM” ‘FAILURE”, Ω test the temperature probe, and the wires and connectors between
the probe and controller for a short.
If display reads “DRAINING” “TURN OFF”, verify that the drain valve is closed, check the proximity switch
on the drain valve, turn the fryer off, and then turn the fryer on.
Digital Solid State Control
NOTE: All controller test points are at connector P/J1 (closest connector to the controller).
With 24 VAC supplied to pin #1(24VAC supply) and pin # 5(24VAC input from DVI), the display reads “OFF”.
With the controller turned on, there is a 24 VDC output at pin #9 (side on).
When the controller calls for heat, the display reads “HEAt”, there is a 24 VDC output at pin #8 (HD) and a 24
VAC input at pin #6 (HFB). If the controller does not receive the 24 VAC input at pin #6 in approximately 90
seconds, the controller displays “HEAt” “FAIL”. This indicates a break in the HD or HFB circuit.
To correct, do the following:
1. Check the hi-limit switch. Is it open or tripped?
2. Check the ignition module (sensing pilot flame, locked out, 24 VAC at MV terminal).
3. Check the HD relay on the relay board. Is the HD relay energized continuity through COM and NO contacts?