Service actions
NOTE
Servicing should only be carried out by persons
with the necessary expertise.
When replacing components on F1245 only re-
placement parts from NIBE may be used.
Emergency mode
NOTE
Switch (SF1) must not be moved to ""or" "
until F1245 has been filled with water. Other-
wise the temperature limiter, thermostat, com-
pressor and the immersion heater can be dam-
aged.
Emergency mode is used in event of operational interfer-
ence and in conjunction with service. Hot water is not
produced in this mode.
Emergency mode is activated by setting switch (SF1) to
” ”. This means that:
႑
The status lamp illuminates yellow.
႑
The display is not lit and the control computer is not
connected.
႑
The temperature at the immersion heater is controlled
by the thermostat (FD1-BT30). It can be set either to
35 or 45 °C.
႑
The compressor and the brine system are off and only
the heating medium pump and the electrical addition
are active. The addition power in emergency mode is
set in the immersion heater card (AA1). See page 22
for instructions.
40
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40
40
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40
6)
40
;/
;/ ;/
;/ ;/ ;/
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Draining the water heater
The siphon principle is used to empty the hot water
heater. This can be done either via the drain valve on the
incoming cold water pipe or by inserting a hose into the
cold water connection.
Draining the climate system
In order to carry out service on the climate system, it may
be easier to drain the system first. This can be done in
different ways depending on what needs doing:
NOTE
There may be some hot water when draining
the heating medium side/climate system. There
is a risk of scalding.
67Chapter 9 | ServiceNIBE™ F1245
9 Service
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