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MAINTENANCE
It is a requirement that only qualified personnel are
allowed to carry out installation commissioning or
servicing.
Before commencing any maintenance or servicing work
the heater must be shut down and allowed to cool, and
have the gas and electric supplies to it turned off at the
supply cock and isolator respectively.
In order to carry out analyses of the Flue gasses sample points must be made at the following dimensions See Diagram
1
2
200
200
1
2
1. Combustion by-product sampling point
2. Combustion air sampling point
•
CLEANING OF EXHAUST AND INTAKE DUCTS
The cleaning of the exhaust and combustion air intake ducts consists of the mechanical removal of dust and any foreign
substances which may have been deposited internally.
•
CENTRIFUGAL FAN MAINTENANCE
Cleaning of the fan consists of the mechanical removal
of dust and any foreign substances which may have
been deposited on the fan wheel, motor and intake
grate. Periodically, check the transmission belt tension
and the alignment between motor pulley and the fan
pulley.
The belts must not be tighter than is necessary in
order to prevent sliding
; on pressing the two sides of
the belt with hands, the belt must give at least 2-3 cm.
To regulate the transmission use the special belt
tightening system.
CLEANING OF EXHAUST EXTRACTOR
Cleaning of the exhaust extractor consists of the mechanical removal of dust and any foreign substances which may
have been deposited on the fan.
LIMIT THERMOSTAT
Annually, check the LIMIT thermostat is functioning properly, disconnecting the special bridge marked
TEST and checking that the burner stops.
CLEANING OF BURNER
Cleaning of the burner takes place by removing it from its housing and removing any scale which may have been
deposited on the tubing, using exclusively compressor air or brass brush. Any broken tubes or packing must be replaced.
