Technical data
ACT VS 3000 - 6000
EN - 29
Alarm
ID
Description
Set
Delay
Reset
1
- Pressure switches - Pressure switch HPS or
LPS has triggered
Refrigerant pressure High or LOW
Contact
open
Flag
immediately
Restore
contact
2
- Expansion valve -
Electronic Expansion Valve EEV fault
Contact
open
Flag
immediately
Restore
contact
3
- Fan Protection - Fan electrical protection has
triggered
Fan motor overload
Contact
open
Flag
immediately
Restore
contact
4
- High Discharge Temperature -
Temperature T4 compressor discharge over
safety limits
T4>110°C
(230°F)
60
seconds
T4<100°C
(212°F)
5
- Compressor Protection - QC1 circuit breaker has
tripped
Compressor overload
C. breaker
tripped
Flag
immediately
Restore
C. breaker
6
- ICE -
Temperature T1 exchanger too low. Condensation
frozen
T1 < -3°C
(26.6°F)
60
seconds
T1 > 0°C
(32°F)
7
- Probe Fault LP -
LP pressure transducer fault
-
Flag
immediately
Restore
transducer
8
- Probe Fault HP
HP pressure transducer fault
-
Flag
immediately
Restore
transducer
9
- Probe Fault T1 -
T1 temperature probe fault
-
Flag
immediately
Restore
probe
10
- Probe Fault T4 -
T4 temperature probe fault
-
Flag
immediately
Restore
probe
11
- Low Differential Pressure -
Low differential pressure between the values
measured by BHP and BLP
HP-LP
< 2.5 bar
(96,3 psi)
60
seconds
HP-LP
> 2.5 bar
12
- High Evaporating Pressure -
R134.a 4.5 barg
(65,3 psig)
R407C 7.3 barg
(105,9 psi)
60…300
seconds
-
13
- Low Condensing Pressure -
Variable
180…300
seconds
-
1001
- Power Unit Communication Lost -
Communication fault between the DMC50 power module and display module
1002
- Variable speed drive Communication Lost -
Communication fault between the DMC50 power module and the compressor variable speed drive
169001
169118
Specific compressor variable speed drive alarms
Consult the variable speed drive manual