Maintenance routines
9
For Home Owners
FIGHTER 360P
The working range of the heating system is normally
0.5 – 1.5 (bar) Check this on the pressure gauge (42).
FIGHTER 360P has two safety valves, one for the
heating system and one for the water heater.
The heating system’s safety valve (52) must be com-
pletely tight, but the hot water safety valve (47) may
occasionally release some water after hot water has
been used. This is because the cold water, which
enters the water heater to replace the hot water,
expands when heated causing the pressure to rise
and the safety valve to open.
Safety valve (52) should be checked once a year, while
safety valve (47) should be checked 4 times a year.
Check one valve at a time as follows:
■ Open the valve.
■ Check that water flows through the valve.
■ Close the valve.
■ The heating system may need to be refilled after
checking the safety valve (52), see the section
Commissioning and adjustment – Filling the heat-
ing system.
Pressure gauge
Extract air temperature
Checking the safety valves
Check that the temperature of the extract air (menu
5.1) is clearly lower than the room temperature when
the compressor is operational, also see section Deal-
ing with malfunctions – High extract air temperature. It
is normal that the extract air temperature varies.
5.0°C
Vented air temp.
5.1
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