REMKO GPM - Manual (Page 33)

33
Check electrodes for their
positioning according to
instructions (see figure).
It is important that the monitoring
electrode [IO] lies tangential to
the ignition burner head and not
within it.
The ignition electrode [Z] must
discharge to the outside edge
of the ignition burner at an
appropriate distance to the
monitoring electrode.
2) Inspection of the flue gas and
supply air lines
Carry out a visual inspection of the
status of all lines and connectors.
Remove any accumulation of dirt
that has formed on the endpiece
of the supply air line.
3) Inspection and cleaning of the
Venturi tube
Remove the dirt at the input of the
Venturi tube with a small brush
or other suitable tool. Make sure
that it does not fall into the Venturi
tube.
4) Check of the gas input pressure
Make sure that the pressure at the
input of the gas valve corresponds
to the prescribed value for the
respective gas type.
This check must be carried out
with the unit switched on at high
output.
5) Inspection of the flame
monitoring unit.
Close the gas cock in the unit
heating mode and make sure that
the fault F1 occurs. Open the gas
cock again, unlock and wait for the
unit to restart.
6) Check of the safety
thermostat(s)
The inspection must be carried out
in the unit heating mode.
- Heat up the thermostat sensor
with a hot air gun or other
suitable means until the fault F2
is displayed..
- Let the thermostat sensor cool
down and reset the unit again.
- This check should be carried out
at all existing thermostats.
In order to preserve the
performance and a long service
life of the equipment, some
mandatory inspections must be
carried out once annually and in
each case prior to the beginning of
the heating season:
1) Check condition of the ignition
and monitoring electrodes as
well as the ignition gas burner
2) Check condition of the supply
and flue gas lines as well as the
end pieces
3) Inspect Venturi tube for dirt
4) Inspect heat exchanger for dirt
5) Check gas pressure at the input
to the gas valve
6) Check function of the flame
monitoring unit
7) Check of the safety
thermostat(s)
8) Inspection of the ionisation
current (>2 microamperes)
1) Inspection of the electrodes
Completely disassemble the
ignition burner and clean gas net
and gas nozzle with compressed
air.
Check the ceramic of the
electrodes for integrity.
Carefully remove any oxidation
accumulation on the metal part
of the electrodes with fine emery
paper.
Maintenance
2-3 mm
Z IO
With steps 1, 2, 3 and 4 the
power and gas supply to the
unit must be interrupted. Steps
5, 6, 7 and 8 take place in the
unit heating mode.
NOTE