Nibe F1245 Service Manual

Repairers actionHeat pump action.CauseAlarm text on
the display
Alarm
no.
Cooling degree minutes set to
zero.
The input for the sensor re-
ceives unreasonably high or
low value for longer than 2
seconds.
Com. error HPAC323
Accessory is blocked.Communication with the
accessory board on
ACS_Thermostat has been
missing for 15 seconds.
Com. fault ACS328
Manual reset.
Operation blocked.Communication with the
reversing valve has been
missing for 10 seconds.
Com. fault Re-
versing valve
331
The sensor signal is replaced by
“EPXX-BT2” - 10K during shunt
control. At no BT3, the accessory
is blocked.
The input for the sensor re-
ceives unreasonably high or
low value for longer than 2
seconds.
Sensor fault
EP44-EP47 BT2
336–339
NoneCommunication with the
accessory board OPT has
been missing for 60
seconds.
Com. fault OPT357
NoneAlarm generated by the gas
boiler.
Internal OPT
fault
358
F1245Chapter 6 | Troubleshooting32

Nibe F1245 Specifications

General

Refrigerant	R410A
Control System	NIBE SMO 40
Dimensions (HxWxD)	1800 x 600 x 620 mm
Energy Efficiency Class Heating 35°C	A++
Energy Efficiency Class Heating 55°C	A++
Heating Capacity	5-12 kW
COP Heating	4.5
Integrated Hot Water Tank	180 liters
Power Input Heating	1.0 - 3.0 kW