Control Logic - Flow Chart - Raypak AVIA 264 Quick Reference Manual

Control Logic - Flow Chart

Power On
Is the Display lit?
Push MODE
Select "Pool" or "Spa"
MODE MODE
UP UP
Push UP or DOWN
arrows to adjust
Temperature
DOWN DOWN
Is Water Setpoint and
Water Temperature
displayed?
26
START
In Sensor Fault
YES
Inlet , Outlet or
Inlet , Outlet or Vent
Flue Sensor
Temp [Open/Short]
[Open/Short]
Gas Valve
Flame w/o CFH
Low Voltage
NO
YES
• Check On/Off switch (under lid on control panel)
• Check for 240 or 120 volts to the transformer
(time clock, circuit breaker, wire connections)
• Check for 24 volts to Circuit Board (P6 connector)
Check for damaged or loose wires and terminals.
Verify sensor per "Temperature-Resistance" table:
- Replace Sensor if readings are out of range.
- Replace Ignition board if sensor readings are right.
Check voltage at valve terminals. If terminals are
energized replace control boards, check gas valve.
Replace transformer if voltage is below 23VAC.
YES
Is a Fault Message displayed?
NO
"Remote" and Water Temperature displayed?
If Remote mode is set to control the heater,
Exit Remote control by pressing UP + DOWN.