Service actions
NOTE
Servicing should only be carried out by persons
with the necessary expertise.
When replacing components on F1145 only re-
placement parts from NIBE may be used.
NOTE
If an electrical connection has been disconnected
and is connected, ground must be checked using
a suitable multimeter.
NOTE
An immersion heater without a temperature
limiter is not allowed to be installed.
NOTE
After servicing, complete the relevant Service
Interval Record section of the Benchmark
Checklist located at the back of this document.
Completion of the Service Interval Record is a
condition of warranty. For full terms and condi-
tions of warranty, please see our website
www.nibe.co.uk.
Maintenance
General inspection
Check the following:
1.
Condition of casing.
2.
Electrical connections.
3.
Pipe connections.
4.
Alarm log.
Correct any fault before continuing.
Brine system
Check the following:
1.
Particle filter.
2.
Anti-freeze with suitable refractometer.
3.
Level vessel (if installed).
4.
Expansion vessel (if installed).
5.
System pressure.
6.
Flow and return temperature. The difference must
be 2 - 5°C.
Correct any fault before continuing.
Climate system
Check the following:
1.
Climate system start and stop temperature.
2.
Heating curve settings.
3.
Function of the room sensor (if installed).
4.
System pressure.
5.
Flow and return temperature. The difference must
be 5 - 10°C.
Correct any fault before continuing.
Emergency mode
NOTE
Switch (SF1) must not be moved to " "or" "
until F1145 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 21
for instructions.
40
*3
*3
40
63Chapter 9 | ServiceNIBE™ F1145
9 Service
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