5284792-UIM-A-0317
14
Johnson Controls Unitary Products
Suction temperature sensor failure (open)
RED
(solid)
SUCTION TEMP SENSOR –
OPEN – SOFT LOCKOUT
X
–
Discharge pressure sensor failure (low volt-
age) not in lockout yet
RED
(solid)
DISCHARGE PRESSURE SENSOR -
LOW VOLTAGE
–
X
Discharge pressure sensor failure (low volt-
age)
RED
(solid)
DISCHARGE PRESSURE SENSOR -
LOW VOLTAGE – SOFT LOCKOUT
–
X
Discharge pressure sensor failure
(high voltage) not in lockout yet
RED
(solid)
DISCHARGE PRESSURE SENSOR -
HIGH VOLTAGE
–
X
Discharge pressure sensor failure (high volt-
age)
RED
(solid)
DISCHARGE PRESSURE SENSOR -
HIGH VOLTAGE – SOFT LOCKOUT
–
X
Suction pressure sensor failure (low voltage)
RED
(solid)
SUCTION PRESSURE SENSOR -
LOW VOLTAGE – SOFT LOCKOUT
X
–
Suction pressure sensor failure (high voltage)
RED
(solid)
SUCTION PRESSURE SENSOR -
HIGH VOLTAGE – SOFT LOCKOUT
X
–
Discharge Temp Faults
High discharge temperature (not in lockout yet)
RED
(solid)
HIGH DISCHARGE TEMP
–
X
High discharge temperature
RED
(solid)
HIGH DISCHARGE TEMP -
SOFT LOCKOUT
–
X
High discharge temperature
RED
(solid)
HIGH DISCHARGE TEMP -
HARD LOCKOUT
–
X
Suction Pressure Faults
Low suction pressure (not in lockout yet)
RED
(solid)
LOW SUCTION PRESSURE
X
–
Low suction pressure
RED
(solid)
LOW SUCTION PRESSURE -
SOFT LOCKOUT
X
–
Low suction pressure
RED
(solid)
LOW SUCTION PRESSURE -
HARD LOCKOUT
X
–
Wiring Related Faults
W and O signal received in HP mode
RED
(solid)
W / O INPUTS - HP MODE –
SOFT LOCKOUT
–
–
Inverter Drive Faults
Multiple Inverter Faults
RED
(solid)
MULTIPLE INVERTER FAULTS –
SOFT LOCKOUT
–
–
Control Events
O signal received in AC mode
Yellow
(solid)
O INPUT - AC MODE
–
–
W and O signal received in AC mode
Yellow
(solid)
W / O INPUTS - AC MODE
–
–
Demand Response
Yellow
(per. section 15.2)
DEMAND RESPONSE (ACTIVE)
–
–
Factory Run Test
Yellow
(solid)
FACTORY RUN TEST (ACTIVE)
–
–
Conventional Y1 signal receive in HP mode
Yellow
(per. section 15.2)
REPAIR MODE HEAT – HP (ACTIVE)
–
–
Conventional Y1 and O signals receive in HP
mode
Yellow
(per. section 15.2)
REPAIR MODE COOL– HP (ACTIVE)
–
–
Conventional Y1 signal receive in AC mode
Yellow
(per. section 15.2)
REPAIR MODE COOL – AC (ACTIVE)
–
–
Pipe Freeze Timer expiration
Yellow
(solid)
PIPE FREEZE TIMER - ACTIVE
–
–
Low Suction Pressure
Yellow
(solid)
LOW SUCTION PRESSURE
X
–
Low Voltage (<22.2VAC)
Yellow
(solid)
LOW VOLTAGE – BELOW 22VAC
–
–
Superheat Events
High Superheat
Yellow
(solid)
HIGH SUPERHEAT
X
–
Low Superheat
Yellow
(solid)
LOW SUPERHEAT
X
–
1. Refer to Figure 10 for Outdoor Control LED location.
TABLE 7:
Outdoor Control Faults/Status Code Display
Outdoor Control Description
LED
1
Outdoor Display Text
Left Triangle
Indication
(Outdoor Screen)
Right Triangle
Indication
(Outdoor Screen)