Johnson Controls Hx 3 S1-THXU430W - 2-Stage AC-HP

5407934-UIM-C-1119
Johnson Controls Ducted Systems 59
INVERTER: FAULT LIMIT
LOCKOUT
Fault limit lockout Critical
INVERTER: POWER MOD-
ULE HIGH TEMP
Power module temperature high Critical
INVERTER: PFC-IGBT
HIGH TEMP
PFC-IGBT high temperature Critical
INVERTER: COMPRES-
SOR PHASE CURRENT
FOLDBACK
Compressor phase current foldback
timeout
Efficiency
INVERTER: AC INPUT
CURRENT FOLDBACK
AC input current foldback timeout Efficiency
INVERTER: POWER MOD-
ULE TEMP FOLDBACK
Power module temperature foldback
timeout
Efficiency
TABLE 22: 2-Stage AC-HP
Fault (Displayed Text) Description Category
OUTDOOR: CONTROL
FAILURE
Control failure Critical
OUTDOOR: HPS SOFT
LO-NORM
High pressure switch lockout. The last
mode of operation was normal com-
pressor.
Critical
OUTDOOR: HPS HARD
LO-NORM
High pressure switch lockout. The last
mode of operation was normal com-
pressor.
Critical
OUTDOOR: HPS SOFT
LO-DFST
High pressure switch lockout. The last
mode of operation was defrost.
Critical
OUTDOOR: HPS HARD
LO-DFST
High pressure switch lockout. The last
mode of operation was defrost.
Critical
OUTDOOR: LPS SOFT
LOCKOUT
Low pressure switch lockout Critical
OUTDOOR: LPS HARD
LOCKOUT
Low pressure switch lockout Critical
OUTDOOR: LOW VOLT-
AGE<16V
Low voltage (below 16.0 VAC) stopped
current relay outputs
Critical
OUTDOOR: AMB SENS
SHORT-CL
Outdoor ambient sensor failure in cool-
ing mode (shorted)
Critical
TABLE 21: Variable Capacity Inverter Control (Continued)
Fault (Displayed Text) Description Category