REMKO GPM 15 - Manual (Page 32)

32
REMKO GPM
7) Checking the ionisation flow
Carry out this check using a
tester that is able to measure
microamperes using DC current.
- Disconnect the unit from the
mains supply.
- Disconnect the cable from the
flame monitoring device and
connect it to the negative pole of
the tester.
- Establish a cable connection
between the positive pole of the
tester and the flame monitoring
device.
- Switch on the unit again and
measure the ionisation flow.
The ionisation flow value must be
above 2 microamperes (µA).
Lower values are a sign of a badly
positioned or oxidised electrode.
- Remove the fixing screws for
the cover [A] of the chimney
collection box.
- Using a suitable pipe brush, clean
the entire length of the pipes on
the inside, whereby the dirt must
be swept towards the collection
box as far as possible from where
it can be removed by suction.
- After cleaning the pipes, refit
the cover [A] of the chimney
collection box and check for
tightness.
- After completing the work,
reconnect the unit and carry out
a test run.
A
Regular cleaning and
maintenance at the latest after
each heating period is a basic
precondition for a long service
life and trouble-free operation
of the units.
NOTE
Adjustments and maintenance
must only be carried out by
authorised specialists.
NOTE
Due to the perfect combustion of
the units, only negligible deposits
normally accumulate here.
Nonetheless, deposits can
accumulate in the heat exchanger
tubes in the course of time. The
usual maintenance intervals must
therefore be observed in any
event.
A symptom of deposits in the heat
exchanger can be a noticeable
decrease in heat output.
The following steps must be
carried out for cleaning the heat
exchanger:
- Allow the unit to cool down and
disconnect it from the mains
supply.
- Open the side door of the unit.
8) Checking and cleaning the heat exchanger
Ionisation monitoring
electrode
Flame monitoring
device
Micro-ammeter
µA
s s s
We reserve the right to make changes to dimensions and design in the interest of technological advances.