Service actions
NOTE
Servicing should only be carried out by persons
with the necessary expertise.
When replacing components on F1355 only
replacement parts from NIBE may be used.
EMERGENCY MODE
NOTE
The switch (SF1) must not be moved to "" or
" " until F1355 has been filled with water.
Otherwise the compressor could be damaged.
Emergency mode is used in event of operational inter-
ference and in conjunction with service. Hot water is
not produced in emergency mode.
Emergency mode is activated by setting switch (SF1)
in mode " ". This means that:
• The status lamp illuminates yellow.
• The display is not lit and the control computer is not
connected.
• Hot water is not produced.
• The compressor and brine pump for each cooling
module are off.
• Accessories are switched off.
• Internal heating medium pumps are active.
• The emergency mode relay (K1) is active.
External additional heating is active if it is connected to
the emergency mode relay (K1, terminal block X4). En-
sure that the heating medium circulates through the
external additional heating.
F1355 28 kW
Cooling module EP14
Cooling module EP15
F1355 43 kW
Cooling module EP14
NIBE F1355Chapter 4 | Service44
4 Service