19
ENG
ir33+ VCC
+040000058 - rel. 1.2 - 15.02.2018
3.1.16 High condenser temperature alarm management
The condenser temperature can be monitored and high temperature conditions can be signalled above all
when the condenser is blocked. The following diagram describes the alarm.e.
ON
OFF
cht
Ac - AE
Sc Ac - AE/2
Ac
OFF
CHT
ON
t
t
t
Acd
Fig. 3.k
A probe must be confi gured as a condenser probe (see /
A2;3;4
).
If the warning
cht
is activated, the controller switches the compressor to minimum speed
cmf
.
If the alarm
CHt
is activated, the compressor is shutdown.
See the standard user manual for details on how to reset the alarm.
Code
Parameter
UOM
Dis. Def.
Max
Min
Ac
High condenser temperature alarm threshold
°C/°F
C
70
200
0
AE
High condenser temperature alarm diff erential
°C/°F
C
10
20
0.1
Acd
High condenser temperature alarm delay - 0 = Immediate alarm
Min
C
0
250
0
Tab. 3.o
Alarms involved
Code
Message
cht
High condenser temperature warning
CHt
High condensing temperature alarm
Tab. 3.p
3.1.17 High evaporator temperature alarm
If the evaporator probe measures a temperature that exceeds the threshold
AP
for a time greater than
APd
,
alarm “
EHt
” (manual reset) is activated and the compressor is stopped.
Setting parameter
APd
to 0 disables the alarm.
Code
Parameter
UOM
Dis.
Def.
Max
Min
AP
High evaporator temperature threshold
°C/°F
C
60
90
10
APd
High evaporator temperature alarm delay: 0 = Alarm disabled
C
Sec
0
300
0
Tab. 3.q
Alarms involved
Code
Message
Eht
High evaporator temperature alarm
Tab. 3.r