EN - 32
►
Fault after 3 minutes
(P2 = 2 and outdoor temperature below
–
10°C)
- The second check for this fault is taken into account 3 minutes after the compressor starts if HP-LP
<
3 bar for 5 seconds (fault not managed
when compressor stopped).
●
When this fault occurs:
- Compressor turned off.
- Circuit fault output on.
- Fault stored in fault memory.
- Circuit X lubrication fault relay on optional board in On position.
- Circuit fault LED on console lit steadily.
Display:
●
Resetting:
- Press
RESET
to acknowledge the fault.
►
Fault after 10 minutes
- The second check for this fault is taken into account 10 minutes after the compressor starts if HP-LP
<
3 bar for 5 seconds (fault not managed
when compressor stopped).
●
When this fault occurs:
- Compressor turned off.
- Circuit fault output on.
- Fault stored in fault memory.
- Circuit X lubrication fault relay on optional board in On position.
- Circuit fault LED on console lit steadily.
Display:
●
Resetting:
- Press
RESET
to acknowledge the fault.
6.17 Minimum and maximum superheat fault
The superheat temperature on the suction end of each circuit is monitored by comparing the LP saturation temperature to the suction
temperature.
This protection is enabled by setting P43 to 'Yes' ('No' by default). It protects the compressors from excessively low or high superheat
temperatures.
►
If superheat protection = Yes
- This function is turned on five minutes after the compressor starts up.
●
Minimum superheat fault:
- If the superheat value (P307, P337 or P367) drops below the minimum superheat limit value (P44) for 1 minute, the compressor is shut off
and the minimum superheat error message is displayed.
- The compressor automatically restarts after 5 minutes (5 seconds in test mode).
- This function remains on in test mode.
Display:
►
If there are more than 3 cuts in 1 hour
- The unit is turned off by the superheat protection. The
RESET
button must be pressed in order to restart the circuit.
Display:
●
Maximum superheat fault:
- If the superheat value (P307, P337 or P367) rises above the maximum superheat limit value (P45) for 1 minute and the evaporating
temperature
<
15°C, the circuit is shut off and the maximum superheat error message is displayed.
- The unit automatically restarts after 5 minutes (5 seconds in test mode).
- This function remains on in test mode.
Display:
►
If there are more than 3 cuts in 1 hour
- The unit is turned off by the maximum superheat protection. The
RESET
button must be pressed in order to restart the circuit.
Display:
●
If a permanent fault occurs:
- Fault stored in memory in case of a mains power failure.
- Fault stored in fault memory.
- Relay in On position.
C I R C U I T X S T O P
L U B R I C A T I O N F A U L T
C I R C U I T X S T O P
L U B R I C A T I O N F A U L T
C I R C U I T X M I N I M U M O V E R H E A T I N G
X C U T ( S ) I N 1 H
C I R C U I T 3 S T O P
M I N . O V E R H E A T I N G F A U L T
C I R C U I T X M A X I M U M O V E R H E A T I N G
F A U L T X C U T S I N 1 H
C I R C U I T X S T O P M A X I M U M
O V E R H E A T I N G F A U L T