2-Stage Ac-Hp - Johnson Controls Hx 3 S1-THXU430W Installation Manual

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