Supplied By www.heating spares.co Tel. 0161 620 6677
29
-
The operation of the boiler including
the use and adjustment of ALL system
controls which should be fully explained
to the Householder This then ensures the
greatest possible fuel economy consistent
with household requirements of both
heating and hot water consumptions.
Advise the User of the precautions
necessary to prevent damage to the
system, and to the building, in the event
of the system remaining inoperative during
frost
conditions.
-
Explain and demonstrate the function of
time and temperature controls, neon lights
radiator valves etc. for the economic use
of the system.
- If an optional time clock is fi tted, then draw
attention to the timeclock User’s
Instructions and hand them to the
Householder.
- Stress importance of regular servicing
by a qualifi ed Heating Engineer and that a
comprehensive service should be carried
out AT LEAST ONCE A YEAR.
SECTION 7
SERVICING INSTRUCTIONS
Ravenheat are a member of the Benchmark initia-
tive and fully supports the aims of the programme
Benchmark has instructed to improve the stan-
dards of installation and commissioning of central
heating systems in the UK and to encourage in
the regular servicing of all central heating sy-
stems to ensure safety and effi ciency.
7.1 SERVICING
7.1.1
To ensure continued effi
cient operation of
the appliance it is necessary to carry out
servicing and cleaning at regular intervals
The frequency of cleaning will depend
upon the particular installation conditions
and usage but in general, once per year
should be adequate.
WARNING:
Before the start of any servicing or replacement
of components always isolate electricity
supply to the appliance and always turn off
the appliance gas supply at the gas
service
cock.
Data badge position - lower left hand sub
frame.
- The following notes apply to the appliance
and its controls but it should be remembered
that attention must also be paid to the
heating and hot water circuits with special
attention to radiator valves, thermostats,
clocks, leaking hot water taps etc.
- Where it is necessary to replace a
gasket that relies on adhesive for
securing - this adhesive will be supplied
with the gasket as a spare item.
- In all cases prior to servicing, remove the
outer case (sect. 5.4).
Operate the appliance by turning
the boiler thermostat up and down and
observe the main burner.
- Check that the fl ame covers all the fl ame
ports and is of a light blue colour Yellow
fl ames and excessive lifting of fl ames
indicate poor combustion.
-
IMPORTANT:
After completing any
servicing or replacement of gas carrying
components it is essential that a test for
gas soundness is always carried out along
with functional checks in operation.
7.2
TO INSPECT AND CLEAN
THE
APPLIANCE
7.2.1
Before carrying out cleaning operation, cover
the electrical control panel with a piece of
waterproof material to protect it from debris.
7.2.2
Inspect the heat exchanger for any blockage
Deposits of any material should be brushed
away using a soft brush.
NOTE:
Do not use brushes with metallic
bristles.
7.2.3
Examine internal pipe-work connections and
automatic air vent for any water leaks.
Rectify if necessary.
7.2.4
Examine the combustion chamber insulating
material and renew if damaged.
7.2.5
Remove and examine the burner
injector clean or renew, as necessary.
7.2.5.1
Inspect the burner and remove any
deposit with a soft brush. Check the electrodes
for damage or deterioration, clean or
renew as necessary.
Ensure that the spark gaps are correct to
dimensions specifi ed in Fig.52.
7.2.6
Inspect the secondary condensate heat
exchanger.Deposits can be cleared by
removing
and
fl ushing out the exchanger.
Inspect the siphonic condensate trap for a
blockage. Any deposits should be fl ushed out
(Fig.
90).
Fig.52
Summary of Contents for HE Primary AAA
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Page 31: ...Supplied By www heating spares co Tel 0161 620 6677 Fig 58 32 Fig 56 Fig 57...
Page 33: ...Supplied By www heating spares co Tel 0161 620 6677 34 Fig 60 Fig 61 Fig 62 Fig 63...
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