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18
MV Heating UK Ltd
4. Operation Instructions
Before starting up, make sure the main wiring harness is
away from any direct heat source and that all sockets
are well connected.
DO NOT
attempt to adapt the wiring harness in anyway.
It is all ready for installation straight out of the box.
Starting up
Once turned on the water pump will begin to start. The
ECU will then examine all necessary faults such as flame
sensor or over-voltage. Any anomaly will be warned by
the indicator. If everything is correct the glow pin will
be activated and pre heating will begin.
Approximately 15 seconds after this the motor and fuel
pump will begin. The flame sensor will soon detect a
stable flame and the glow pins will switch off. The
heater will now come to a normal working state.
If the heater fails to ignite, the sequence will begin
again. If it fails to ignite for a second time, the green
indicator will flash a fault code (see page 19: Fault
Finding).
Turning off
The heater will automatically turn off when the water
temperature reaches 78˚C, at which point the fuel
pump will stop. The heater motor will continue until the
heater cools down. This process takes around 4
minutes. The heater will automatically switch itself back
on when water temperature falls below 65˚C.
