12.15
Remove the oil pressure gauge and manifold and check
all oil system joints for any signs of leakage.
12.16
Allow the burner to run for a further five minutes and
then recheck the CO
2
level and adjust the air setting if required.
Check that the smoke number is in the range 0-1. Repeat the
fine tuning procedure if found necessary.
12.17
Refit the cabinet top and front panels in the reverse order
to that described in Section 5.
12.18
When the heating circuit has reached full operating
temperature check the whole system for any leaks.
12.19
Add a suitable proprietary corrosion inhibitor such as
Fernox or Sentinel. This will inhibit corrosion, protect the circulat-
ing pump and valves reducing the possibility of "kettling" noises
resulting from deposits of scale and sludge in the boiler. Refer to
the product manufacturers instructions for further information.
20
14.1
The following should be carried out at least once per year
to ensure efficient, trouble free operation.
1.
Carry out a pre-service check noting any operational faults.
2.
Check and clean the burner.
3.
Check and clean the air intake tube and the air intake grille at
the end of the terminal.
4.
Check and clean the baffles.
5.
Check and clean the heat exchanger surface.
6.
Check the heat shield.
7.
Check the combustion chamber base insulation board.
8.
Check and clean the secondary heat exchanger and baffles.
9.
Check that the flue system is unobstructed and clean as necessary.
10.
If the appliance has been installed in a compartment check
that the ventilation areas are clear.
11.
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.
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.
(b)
Remove the 13mm nut at the top of the burner and pull the
burner out, taking care not to put any tension on the electrical
cable.
Fig. 27. Burner.
BURNER HEAD
4,7-5,7
(-0,5)-(+0,5)
7,0-8,0
2,5-3,1
13.1
Hand the users instructions and Benchmark Log
Book to the user or purchaser for retention and instruct them in
the efficient and safe operation of the appliance and the heat-
ing/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.
13. Instructions to the User
ELECTRO OIL BENTONE STERLING
BURNER
14. Routine Cleaning and Inspection