Keston Thermomatic RSM20/FB, Инструкция по установке и обслуживанию, Страница: 32 / 46

Page 32
8. ROUTINE SERVICING INSTRUC-TIONS
To ensure continued safe and efficient operation of
the appliance, it is recommended that servicing and
cleaning of the boiler be carried out at regular
intervals by a competent person.
The frequency of cleaning depends mainly on usage,
but generally once a year should be sufficient. Run
the appliance and detect any faults or servicing which
may be required, noting that the heat exchanger and
burner will be cleaned anyway.
WARNING
Before starting any servicing or replacement of com-
ponents, always isolate electricity supply to appliance
and turn off the gas supply at the service cock.
8.1 ACCESS
Remove the front, top and base panels (see Section
6.2).
8.2 BURNER/ELECTROOES/INJECTORS
8.2.1Remove the main burner (Section 6171 to
6.17.7).
8.2.2 Clean the burner blades with a soft brush.
8.2.3 Check the condition of-the two electrodes.
8.2.4 If required, remove the injectors and blow or
wash through to clear any deposits.
8.2.5 Do not replace the burner at this time.
8.3 HEAT EXCHANGER CLEANING
(HORIZONTAL FLUE SYSTEMS)
8.3.1 Disconnect the pressure tubes from the inner
top panel (a. fig. 8.!)
8.3.2 Disconnect leads a (the in line connectors (b).
8.3.3 Lift and disconnect the elbow from the fan
socket, then pull the flue assembly out of the plastic
liner.
8.3.4 Remove 8 screws (c) and lift away the fan and
inner top panel complete
8.3.5I n turn, remove the baffle from each heat
exchanger tube and clean the tubes with a suitable
brush
8.4 .6 Rotate the fan checking it runs freely
8.3.7 Replace the baffles, the inner top panel/fan and
the flue elbow Connect the leads (polarity immaterial)
and the pressure tubes (red to red)
8 3.8 Clean any debris from the burner chamber and
order
8.4.1
HEAT EXCHANGER CLEANING (VERTICAL
FLUE SYSTEMS)
8.4.1 Disconnect leads at the in line connectors (b
fig 8 1)
Fig. 8.1
TOP VIEW OF THE BOILER
(Without top protective guard)
8.4.2 Remove the three retaining screws down each
side of the Air Pipe Detachable Sleeve and remove
the sleeve.
8.4.3 Slacken off the screws on the Flue Pipe De-
tachable Sleeve and slide the sleeve up the flue pipe
and remove the 110 mm length flue pipe distance
8.4.4 Disconnect the pressure tubes from (he inner
top panel (See fig 8.1).
8.4.5 Remove 8 screws {c) and lift away the fan and
inner top panel complete.
8.4.6 In turn, remove the baffle from each heat
exchanger tube and clean the tubes with a suitable
brush.
8.4.7 Replace the baffles and rotate the fan checking
it runs freely
8.4.8 Replace the inner top panel/fan.
8.4.9 Replace the flue Pipe Distance Piece and pull
the flue pipe detachable sleeve back down the flue
pipe until the sleeve covers the top 30 mm of the flue
pipe immediately below the distance piece. Place the
two piece of the air pipe detachable sleeve over the
gap in the air pipe, replace the screws and tighten.
8.4.10 Connect the leads (polarity immaterial) and
the pressure tubes {red to red).
8.4.11 Clean any debris from the burner chamber
and reassemble the remaining components in
reverse order.
8.5 Clean or replace any other components
considered necessary (Instructions for removal are
given in Section 6).
8.6 Relight and check for gas and water soundness
of appliance components.
8.7 Reassemble the appliance casing