Y1 DEMAND
COMPRESSOR CONTACTOR ENERGIZED
YES
COMPRESSOR CONTACTOR DE−ENERGIZED
INITIAL TRIP
SWITCH IS
IGNORED FOR 90 SECONDS
W OUTPUT | NO |
ACTIVE) |
|
NORMAL
OPERATION
WOUTPUT ACTIVE)
NO
COMPRESSOR ANTI−SHORT CYCLE TIMER BEGINS
INCREMENT
5−STRIKE
COUNTER1
LED ALERT CODE / OR MODERATE ALERT 418 DISPLAYED
|
|
| COMPRESSOR |
|
|
| ANTI−SHORT |
YES |
|
| |
|
| CYCLE TIMER | |
|
|
| |
|
|
| BEGINS |
|
|
|
|
5−STRIKE
COUNTER
REACHES 5
WITHIN A SINGLE
Y1 DEMAND
WOUTPUT HARDWARE
FAULT
LOCKOUT
LED ALERT
CODE / OR
MODERATE
ALERT 418
DISPLAYED
ANTI−SHORT
CYCLE TIMER
ENDS
W OUTPUT | NO | |
ACTIVE) | ||
|
YES
WAITING FOR
W OUTPUT TO
DEACTIVATE
LED ALERT CODE / OR MODERATE ALERT 418 CLEARED
ANTI−SHORT CYCLE TIMER ENDS
LED ALERT CODE / OR MODERATE ALERT 418 CLEARED
LED ALERT |
| |
CODE / OR | SERVICE | |
CRITICAL | ||
REQUIRED2 | ||
ALERT 419 | ||
| ||
DISPLAYED |
|
1If 5−strike counter has four or less strikes when Y1 demand is terminated or satisfied, the strike counter will reset to zero. In a icomfort Touch® thermostat enabled setup, the thermostat will terminate demand when the compressor contactor is de−energized. If demand is satisfied when alarm is not active, the 5−strike counter will reset.
2Lockouts can be reset by either cycling power off to the heat pump control’s (A175) R terminal, or placing a jumper on the field test pins (E33) between 1 to 2 seconds.
Figure 30. W Input Fault or Miswire
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