36
Multi Pass Oil Boilers
Important notes prior to servicing
7.1
7 - BOILER SERVICING
Dismantling prior to servicing
7.2
Cleaning the boiler
7.3
To ensure efficient operation of the boiler it is
recommended that it is checked and serviced as
necessary at regular intervals. The frequency of
servicing will depend upon the particular installation
conditions and usage, but in general once per year
should be adequate.
Servicing and replacement of parts must only be
carried out by a suitably qualified engineer.
Important: Details of every service should be
entered in the Service Log, on page 2 of these
instructions. This information may be required to
validate the Grant extended warranty.
IMPORTANT
Before starting any work on the boiler, or fuel supply
please read the health and safety information given in
Section 11 on page 50.
1
Check the flue terminal and ensure it is not blocked
or damaged.
2
Run the boiler and check the operation of its
controls.
3
Ensure that all water/fuel system connections and
fittings are sound. Remake any joints and check the
tightness of any fittings that may be leaking.
If the boiler is used on a sealed central heating
system, check the system pressure. Refill, vent and
re-pressurise the system as necessary.
4
Check that any ventilation openings are adequate
and are clear. See Section 3.5.
5
Remove any sludge/water from the fuel tank by
opening the sludge valve at the lower end of the
tank.
6
With the fuel supply valve closed, clean/replace the
filter element and clean the filter bowl.
7
Flexible fuel supply pipes should be inspected
annually when the boiler is serviced and replaced
every two years. If in doubt replace the pipes.
Warning: Before servicing, set the boiler On/Off
switch to Off (Kitchen models only), isolate the
electricity supply and close the fuel supply valve.
Allow the boiler to cool.
The data label on the inside of the case side panel for
Kitchen models or on the front panel for Boiler House
models, will indicate the fuel used and nozzle fitted.
1
Kitchen models - Open the case door and remove
the plinth - loosen the screw securing the right hand
side of the plinth inside the case. Withdraw the
plinth forward from the right and away from the
case.
2
If necessary disconnect the flexible air tube from
the burner.
3
Remove the burner fixing nut (top of mounting
flange) and withdraw the burner.
If required, disconnect the flexible oil pipe(s), use
a suitable container to prevent any oil spillage.
Note: If two flexible pipes are connected to the
burner, identify (mark if necessary) which is the
inlet and return if they are to be disconnected.
See Fig. 26
1
Remove the four nuts and washers securing the
front cleaning door and withdraw the door. Take
care - it is heavy.
2
Remove the baffles as shown in Fig. 26 (baffles
shown for 70/90 model). Refer to Figs. 30 to 34 for
other baffle configurations.
3
Remove all deposits from the baffle plates and all
the boiler internal surfaces using a stiff brush and
scraper if necessary.
4
Check the condition of the flue, clean as necessary.
5
Check the condition of the front cleaning door seal,
replace if necessary.
6
Replace the baffles, ensuring they are correctly
fitted. See Fig. 26.
7
Replace the front cleaning door, ensuring the seal
is in good condition and secure it in position with
the four nuts and washers previously removed.
Tighten to form a seal.
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Страница 13: ...13 Multi Pass Oil Boilers 3 GENERAL BOILER INFORMATION Fig 3 Two pipe system Fig 2 Single pipe system...
Страница 19: ...19 Multi Pass Oil Boilers Fig 11 Typical conventional flue with brick chimney 3 GENERAL BOILER INFORMATION...
Страница 20: ...20 Multi Pass Oil Boilers 3 GENERAL BOILER INFORMATION Fig 12 External flue Green system...
Страница 41: ...41 Multi Pass Oil Boilers 7 BOILER SERVICING Fig 34 160 200 Baffle arrangement Left Right...
Страница 51: ...51 Multi Pass Oil Boilers...
