Product manual

21
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Diagnostic Messaging – LED Definitions (ZX MT and LT Units)
Idle
(Stop When Reach To Set-point)
Run
About To Start
Defrost
Stop Due To Error
Lockout
Display
1
Status
LED1-Unit Status
No error/warnings
Compressor Phase Error
(Wrong Phase Sequence/Loss Of Phase)
Compressor Inside Thermal Protector Trip
Compressor Over Current
Discharge Gas Overheat
Compressor High Pressure Cut Out
Compressor Low Pressure Cut Out
DLT Thermistors Failure
Ambient Temperature Sensor Failure
Mid-coil Temperature Sensor Failure
PHE Vapor In Temperature
Sensor Failure or over range
PHE Vapor Out Temperature
Sensor Failure or over range
System Liquid Flood Back Warning
Display
2
3
3
Error/Warning
LED2-Error/Warning Code
Note:
This signal is for Fresh Start, Normal Start Program and any start request delay.
“LP Cutout” signal is not applicable in ZXL condensing unit.
PHE Vapor In/Out Temperature Sensor is not applicable in ZX medium temperature condensing unit.
3
2
1