VUBMG102
76*'+
Danfoss – 39
6 list of alarms
alarm name
Class
automatic
reset
acknowledge
required
explanation
High return temp
B
X
The temperature on the heat pump return is too high
for the heat pump to work efficiently. The heat pump
has ceased to produce heat.
Temp diff brine
B
X
The difference in temperature between incoming and
outgoing brine is large. This may be due to low flow rate.
Compressor current
A
X
The current overload protection for the compressor
has triggered.
Brine pump current
A
X
The current overload protection for the brine pump has
triggered.
High pressure
A
X
The high pressure guard has triggered.
Low pressure
A
X
The low pressure guard has triggered.
Low brine flow
A/B
X
The flow guard for brine has triggered.
Brine pressure
A/B
X
The pressure guard for brine has triggered.
Compressor heat
A
X
The temperature overload protection for the compres-
sor has triggered.
Control pressostat
B
X
The controller pressostat has been triggered for a long
time.
Sensor supply temp
B
X
A fault in the heat pump's supply temperature sensor
has been detected.
Sensor return temp
B
X
A fault in the heat pump's return temperature sensor
has been detected.
Broken outdoor temp
B
X
A fault in the outdoor temperature sensor has been
detected. The control system assumes the outdoor
temperature is zero.
Sensor hot water
B
X
A fault in the temperature sensor for hot water has
been detected.
Sensor hot gas temp
B
X
A fault in the sensor for hot gas temperature has been
detected.
Sensor brine in
B
X
A fault in the heat pump's incoming brine temperature
sensor has been detected.
Sensor brine out
B
X
A fault in the heat pump's outgoing brine temperature
sensor has been detected.
Sensor prim. supply
B
X
A fault in the primary supply line temperature sensor
has been detected.
Hpc rm communication
A
X
Communication error with the HPC RM module. This
module contains the heat pump's relays.
24 vac power fail
A
X
A power failure on 24 VAC has occurred.
Communication master
A
X
Communication with the master pump has failed.
High brine in temp
B
X
The incoming brine temperature is too high. The alarm
is part of the brine control function.
Summary of Contents for DHP-R 7Ua
Page 1: ...VU 102 user s manual CONTROL SYSTEM DHP R...
Page 2: ...VU 102 2 Danfoss...
Page 4: ...76 4 Danfoss...
Page 6: ...76 6 Danfoss...
Page 18: ...76 18 Danfoss...
Page 42: ...V6 42 Danfoss...
Page 43: ...76 Danfoss 43 8 Menu overview...
Page 44: ...76...