10
SYSTEM CONTROLLER - HEAT PUMP
STATUS LEDs
O/B Y1 Y2 G W2 PWR DPR MODE FUNCTION
OFF OFF OFF OFF OFF OFF
OFF
Off Power off
OFF OFF OFF OFF OFF ON OFF On
Power on, blower off, zones satisfied
ON/OFF OFF OFF ON
OFF
ON
0 Vent Blower on, compressor(s) off, all zone dampers open
ON/OFF OFF OFF OFF OFF
ON
1 Purge
Blower off, compressor(s) off, Dampers with LEDs on are closed
A
ON
OFF
ON
OFF
ON
1 Y1 Cool
1st stage cool, blower on. Dampers with LEDs on are closed
A
ON
ON
ON
OFF
ON
1 Y2 Cool
2st stage cool, blower on. Dampers with LEDs on are closed
B
ON
OFF
ON
OFF
ON
1
Y1 Cool
1st stage cool, blower on. Dampers with LEDs on are closed
B
ON
ON
ON
OFF
ON
1
Y2 Cool
2st stage cool, blower on. Dampers with LEDs on are closed
ON/OFF OFF OFF
ON
ON
ON
0
Em. Heat
Auxiliary and emergency heat on
OFF OFF OFF
ON
OFF
FL
1 Cap Cut out
Blower on, all compressors off. Dampers with LED on are closed
ON/OFF
ON
ON
ON
ON
ON
1
Em. Heat
If below 90°, stages up to Y1, Y2 and W2
ON/OFF OFF OFF
ON
ON
ON
1
Em. Heat
Fossil Fuel mode, stages uo to W2 only
STATUS LED LEGEND
FL = Flashing A = On when reversing valve jumper is in O position B = On when reversing jumper is in B position
C = On when auxiliary heat is energized 1= One or more damper LEDs on 0 = All damper LEDS are off
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