Nibe F1245 Service Manual

Alarm 52 – temperature limiter
Has overheat protection tripped?
YES
YES
YES
Is the heating medium flow across
the heat pump correct?
Can the overheat protection be
reset when the temperature is
below 80 °C?
Action.
NO
NO
Replace overheating protection.
- Check the connection of the joint
cable between immersion heater
card (AA1) and base card (AA2).
- Check the temperature limiter
cable connections.
NO
Check the relay function for the
immersion heater.
F1245Chapter 6 | Troubleshooting44

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