Unit installation

56
EV12T:xxx EV34T:xxx
Evaporators
temperatures
(show only if M16
=1)
RT : Run time
HGBS : Hot gas bypass solenoid (xxx = NO/ON/OFF)
STAGE : Number of stages (x = 0…8)
CP : Number of compressor ON (x = 0….8)
HUCP : Number of compressor unload (x = 0…8)
If UP key is pressed the system shows the alarm history pages (Alarm #1 is the more recent alarm):
ALARM HISTORY ALARM HISTORY ALARM HISTORY
1: 4: 7:
2: 5: 8:
3: 6: 9:
To clear the alarm history press together DOWN and ESC key when the controller is in ‘off’ status.
When an alarm is active the following page is displayed. When the alarms are more than 1 the
information is changed every 5 seconds.
ALARM
Compressor N
Description
If the alarm needs manual reset LCD shows this display:
ALARM
Compressor N
Description
Press <ESC> to reset
This is a table of shows the DESCRIPTION of the alarms that shall be displayed:
ALARM DESCRIPTION ALARM HISTORY CODE
ICE HAZARD ICE HAZARD
OIL PRESSURE LOW CP N:OIL PRESS LOW
BREAKER FAULT CP N:BREAKER FAULT
SSPS FAULT CP N: SSPS FAULT
PROBE I OUT OF RANGE CP N: PROBE I
WATER OVERTEMP CP N:WATER OVERTEM
SUCTION PRES LOW CP N:SUCT PRES LOW
DISCHARGE PRES HIGH CP N:DISCH PR HIGH
DISCH PRES TOO HIGH CP N:DIS P TOO HGH
NO WATER CIRCULATION NO WATER CIRCULAT.
LOW OIL LEVEL CP N:LOW OIL LEVEL
HIGH PRESS SWT FAULT CP N:HIGH P SWITCH
SERIAL COMMUNICATION CP N: SERIAL COMM.
NO RUN CONDITION CP N: NO RUN
TOO MUCH PUMP DOWN CP N: PUMP DOWN
NO ALARM RECORDED