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13. Instructions to the User
13.1 Hand the users instructions to the user or purchaser for
retention and instruct them in the efficient and safe operation of
the appliance and the heating/hot water system.
13.2 Advise the user or purchaser of the precautions necessary
to prevent damage to the heating/hot water system and to the
building in the event of the heating system remaining
inoperative during frost conditions.
13.3 Finally advise the user or purchaser that for continued
efficient and safe operation of the appliance it is important that
adequate servicing is carried out by a qualified engineer at least
once per year.
Worcester Heat Systems Limited will be pleased to discuss and
offer a comprehensive maintenance contract.
13.4 Set the system controls to the users requirements.
14.1 The following should be carried out at least once per year
for 28 second Kerosene and twice per year for 35 second Gas
Oil, to ensure efficient, trouble free operation.
1. Carry out a pre-service check noting any operational faults.
2. Check and clean the burner.
3. On the CF model check and clean the air intake grille located
in the boiler room.
4. On the RS balanced flue model check and clean the air intake
ducts at the rear and underneath the boiler and the air intake
grille at the end of the terminal.
5. Check and clean the baffle retainer (20/25, 26/32, 32/50
and 50/70 models).
6. Check and clean the cap retainer (32/50 and 50/70 models).
7. Check and clean the baffles.
8. Check and clean the heat exchanger surface.
9. Check the heat shield (20/25, 26/32, 32/50 and 50/70
models).
10. Check the combustion chamber base insulation board.
11.
Check that the flue system is unobstructed and clean as
necessary.
12. If the appliance has been installed in a compartment check
that the ventilation areas are clear.
13. Clean all oil filters.
Some of the servicing points are covered more fully in the
following instructions:-
14.2 Pre-Service Check
1. Remove the cabinet front and top panels as described in
section 5 .
2. On the RS balanced flue model remove the burner box cover
as described in Section 5.5.
3. Operate the appliance and system, noting any faults which
may need to be corrected during the service.
14.3 Cleaning the Burner
IMPORTANT: Disconnect the electrical supply at the mains
before commencing any servicing. Turn off the oil at the service
cock.
1. Remove the burner.
(a) Isolate the oil supply at both the oil tank and the isolating
valve situated above the burner on the right-hand side. (See
Figs. 2 and 3).
(b) On the RS balanced flue model remove the burner box cover
by pulling forwards to release the ball studs. This will be found
easier by pulling on one side of the handle first to release two of
the ball studs and then repeating on the other side. Take care
not to pivot the remaining two ball studs too far around as this
will cause damage to the spring clips.
(c) Disconnect the electrical lead from the control box by
depressing the two locking ears on the plug and pulling
downwards.
14. Routine Cleaning and Inspection
(d) On the RS balanced flue model feed the electrical lead back
through the grommet seal to give sufficient play to allow with-
drawal and inspection of the burner.
(e) Slacken the two M6 burner locking screws, using a 5mm
allen key, and remove the burner.
2. Clean the fan impeller using the following procedure:
Electro-oil Inter B9 Burner
(a) Remove the two screws holding the combustion head in
position and withdraw the combustion head and air guide collar.
(b) Remove the three remaining screws holding the front cover
plate in position and withdraw the cover to expose the fan impeller.
(c) Clean both sides of the fan impeller and remove any debris
from the burner housing.
(d) Check that the impeller rotates freely.
(e) Clean the air inlet passage and check that the adjustment
mechanism operates freely.
(f) Re-assemble the components.
Electro Oil Inter B11
(a) Remove the acoustic fan inlet cover.
(b) Remove the three screws holding the fan cowl in position
and remove the cowl noting how the fan control flap is
positioned.
(c) Check that the air control flap pivots freely and ensure the air
path to the burner head is clear.
(d) Clean both sides of the fan impeller and remove any debris
from the burner housing.
(e) Check that the impeller rotates freely.
(f) Re-assemble the components.
Electro Oil Sterling
(a) Remove the air adjustment cover.
(b) Separate the main body of the burner from the burner front
by removing the M6 allen screw (located beneath the air
adjustment screw), using a 5mm allen key.
(c) Note the position of the air damper adjustment and check
the air damper moves freely.
(d) Check the air path to the burner head is clear.
(e) Clean both sides of the fan impeller and remove any debris
from the burner housing.
(f) Check the impeller rotates freely.
(g) Re-assemble the components.
Electro Oil Inter B20B
(a) Remove the four screws holding the fan cover and remove.
(b) Clean both sides of the fan impeller and remove any debris
from the burner housing.
(c) Check that the impeller rotates freely.
(d) Clean the air damper which is attached to the fan cover and
check that the adjustment mechanism operates freely.
(e) Re-assemble the complete.
3. Remove the combustion head and thoroughly clean all
deposits.
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