Nibe F1345 Operating Manual page 57

Alarm Alarm text on the
no. display
39 Err: EQ1-BT64
40-42 Compr.phs 1-3
43 In phs seq
44 Fault in the soft-
start fuses.
45 Phase fault (incor-
rect phase se-
quence or miss-
ing phase).
51 LP alarm
52 Temperature lim-
iter alarm
53 Lvl sen Br
54 MP alarm
55 Hot gas alarm
56 Erroneous serial
no
NIBE F1345
Cause
No contact with the sensor
(temperature sensor, cool-
ing supply line).
The compressor phase
mentioned has been below
160 V for 30 min.
The phases are connected
in the wrong order.
Fuses on the soft-start
board are defective (applies
to 30, 40 and 60 kW).
Communication with the
soft-start board has been
missing continuously for
30 minutes.
Low pressure sensor
transmitter is below cut-out
value.
The temperature limiter has
deployed and been "open"
for longer than 30 seconds.
Brine level switch/ pressure
switch has tripped.
The motor protection
breaker has tripped.
The compressor has been
stopped 3 times in
240 minutes because the
hot gas has exceeded
135 °C.
The heat pump has a serial
number that does not exist.
Heat pump action.
Cooling blocked. Cooling
shunt closes.
Compressor blocked.
Compressor blocked.
Compressor blocked.
Compressor blocked.
Compressor blocked.
None (managed via hard-
ware).
Compressor and brine
pump blocked.
Compressor blocked.
Compressor blocked.
Compressors are stopped
and relay is deactivated.
Chapter 5 | Disturbances in comfort
May be due to/check
• Open-circuit or short-cir-
cuit on sensor input.
• Defective sensor
Phase failure.
The phase order of the in-
coming electrical supply is
wrong.
• Defective fuse.
• Defective soft start card.
Incorrect phase sequence
or missing phase.
Insufficient circulation of
the brine.
• Check the brine pump.
• Check that the brine has
been vented.
• Check the brine's freez-
ing point.
Lack of heating medium or
other fault in the cooling
circuit.
• Contact an authorised re-
frigeration technician.
Insufficient flow.
• Check the circulation
pump.
• Check that the heating
medium has been ven-
ted.
• Check the pressure in the
heating medium system.
Leakage in the brine circuit.
• Phase failure.
• Defective compressor.
Defective compressor.
Incorrectly entered serial
number.
57