Johnson Controls Hx 3 S1-THXU430W Installation Manual page 55

5407934-UIM-C-1119
TABLE 20: Variable Capacity Control (Continued)
Fault (Displayed Text)
OUTDOOR: LOW VOLTAGE
(< 19VAC)
OUTDOOR: COMM LOST
INVERTER DRIVE
OUTDOOR: COMM LOST- SYS-
TEM MASTER
OUTDOOR: AMBIENT SENSOR
SHORTED
OUTDOOR: AMBIENT SENSOR
OPEN
OUTDOOR: COIL TEMP SENSOR
SHORTED
OUTDOOR: COIL TEMP SENSOR
SHORTED-SOFT LOCKOUT
OUTDOOR: COIL TEMP SENSOR
OPEN
OUTDOOR: COIL TEMP SENSOR
OPEN-SOFT LOCKOUT
OUTDOOR: LIQUID TEMP SEN-
SOR SHORTED
OUTDOOR: LIQUID TEMP SEN-
SOR SHORTED-SOFT LOCKOUT
OUTDOOR: LIQUID TEMP SEN-
SOR OPEN
OUTDOOR: LIQUID TEMP SEN-
SOR OPEN-SOFT LOCKOUT
OUTDOOR: DISCHARGE TEMP
SENSOR SHORTED
OUTDOOR: DISCHARGE TEMP
SENSOR OPEN
OUTDOOR: DISCHARGE TEMP
SENSOR OPEN-SOFT LOCKOUT
OUTDOOR: SUCTION TEMP SEN-
SOR SHORTED
Johnson Controls Ducted Systems
Description
Low voltage (below 19 VAC)
stopped current relay outputs
for > 2 seconds
Inverter control communica-
tions fault
RS-485 communications lost
Outdoor ambient sensor fail-
ure (shorted)
Outdoor ambient sensor fail-
ure (open)
Coil sensor failure (shorted)
Coil sensor failure (shorted)
Coil sensor failure (open)
Coil sensor failure (open)
Liquid line temperature sen-
sor failure (shorted)
Liquid line temperature sen-
sor failure (shorted)
Liquid line temperature sen-
sor failure (open)
Liquid line temperature sen-
sor failure (open)
Discharge temperature sen-
sor failure (shorted)
Discharge temperature sen-
sor failure (open)
Discharge temperature sen-
sor failure (open)
Suction temperature sensor
failure (shorted)
Category
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
Critical
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