0108X1DHGBEN
17
SECTION 9 SERVICING INSTRUCTIONS
9.1
CAUTION:
Inadvertent substitution or replacement of
components similar to those specified or
replacement in a manner contrary to the method
herein described could constitute a hazard.
Servicing work my only be carried out by
appropriately qualified persons.
9.2
Attention:
Before starting to service the air heater turn
OFF
the main gas supply to the heater at the service
tap provided. Switch
OFF
the main electricity
supply to the heater after the air circulation fan
has stopped.
9.3
EURO-X 1000 D air heaters require maintenance
and service at least once a year. More frequent
servicing may be required dependent upon the
environmental circumstances where the air
heater(s) are installed. Advise the user of
recommended service frequency after your
findings during this service. Regular inspection is
recommended initially, especially in dirty areas, to
assess the
servicing requirement frequency. Refer to the
illustrations provided figs. 18 & 19 for component
and visual instruction as a guide to
carrying out service work. Items that require
inspection during servicing are as described below.
FIGURE 13. BURNER ACCESS PANEL REMOVAL
9.4
General :
Generally clean all accessible surfaces including
the outside of the heat exchanger accessible after
removal of the louvre frame and fan assembly.
Heater casing :
Check for damage that could be detrimental to the
correct fitting of panels and affect the correct
working or noise level. Check that all assembly
screws are fastened, replace missing screws.
Check that all panels are fixed in place upon
completion of service and that motors, fans and
guards are fixed securely.
9.5
Heat exchanger :
To be checked when carrying out burner and flue
section work. Inspect heat exchanger where
visible inside by use of an inspection lamp and
mirror and outside when burner, air circulation fan
and louvre frame have been removed.
Look for signs of severe corrosion, splits and
perforations that would indicate a failure. If upon
inspection it is found that the heat exchanger is
excessively dirty or blocked with e.g. soot, it will
be necessary to remove the front portion of the
draught diverter to aid cleaning. This can be
carried out referring to fig. 15.
1. Remove the screws securing the front of the
down draught diverter Key 1 and the side
screws
2. The portion of the down draught diverter may
then be withdrawn through the front slot by
lifting and pulling outwards.
3. To replace reverse above procedure
Remove any deposits with a flexible flue brush.
Remove loosened deposits with a vacuum cleaner.
IF HEAT EXCHANGER IS FOUND TO BE
PERFORATED ADVISE USER NOT TO OPERATE
HEATER UNTIL A REPLACEMENT HAS BEEN
FITTED.
9.6
Burner :
The orifice of a gas injector is machined to
precision limits, do not clean with a hard sharp
object that could damage or enlarge the size.
Remove burner tray carefully see below. Check
main burner rails for soundness. Clean thoroughly
taking particular care to ensure that burner ports
are free from lint and dust.
Check gas injectors for cleanliness and that thread
joints are gas tight. If necessary clean with
acetone.
Do not over-tighten.
9.7
Burner tray removal :
Refer to figs. 14, 18 & 19
1
Disconnect gas supply at the unions below
the inlet gas service tap and adjoining the
gas control valve.
2
Disconnect the wires leading to the gas
valve at the valve terminal end.
