HAMWORTHY HEATING LTD
LILLIPUT HE
500001047/F
15
s.
Check all cleaning door, burner mounting and
flue hood joints for flue gas leakage and
tighten all fixings.
t.
Set boiler control thermostat to required
setting, and check operation of heating
control system.
u.
Fully familiarise the user with the boiler
operating controls, the main component
functions and the safety features.
THESE INSTALLATION AND SERVICING
INSTRUCTIONS SHOULD BE LEFT WITH THE
USERS OF THE BOILER FOR THEIR FUTURE
REFERENCE.
9. SERVICING
The boiler should be serviced by a competent
person. The Gas Safety (Installation and Use)
Regulations require that only Registered (i.e.
CORGI Registered) gas personnel should install,
commission and service gas fired equipment such
as these boilers.
Failure to comply with these
Regulations may lead to prosecution.
The boiler should be serviced at regular intervals,
not exceeding SIX months for oil fired boilers, or
TWELVE months for gas fired boilers.
When carrying out boiler servicing always consider
both your own safety and that of others. The use of
protective equipment (e.g. eye protection, face
mask, protective gloves, etc.) is recommended
where necessary.
9.1 Initial
Inspection
a.
a.
Operate boiler and check for any signs
of unsatisfactory operation, water leaks, gas
leaks, oil leaks or unusual noise from burner
oil pump or motor.
b.
b.
After allowing burner to reach stable
firing conditions for approximately 15 minutes,
carry out combustion gas check.
c. Measure
CO
2
, CO, flue gas
temperature, smoke number (for oil) and
water temperature rise across the boiler. The
readings obtained should be as given in
Section 8 - Commissioning.
d.
c.
Measure either gas pressure at burner
head, or oil pressure at burner pump, as
applicable, and check value is correct for size
of boiler in question.
e.
d.
Check operation of both boiler and
heating system controls, then set boiler
control thermostat to OFF.
9.2
Burner Service Procedure.
SWITCH OFF ELECTRICAL SUPPLY TO BOILER
AT ISOLATOR AND SHUT OFF FUEL SUPPLY
TO BOILER.
a.
a. For
oil
installations:
Desludge oil
storage tank and examine for leaks and signs
of deterioration.
b. Examine
contents
gauge for visibility
and clean or recommend replacement as
necessary.
c.
b.
Disconnect electrical and fuel
connections to burner, as necessary.
d.
Examine flexible oil line(s) for any signs
of deterioration, leakage, damage, or
hardening of inner tube.
e.
c.
Disconnect burner from mounting
flange and remove from front of boiler.
f.
d.
For oil burners:
Remove control box,
check photocell is clean, check electrode rod
contacts, check wires in base of control box
and condition of electrical spring connectors.
Wipe nozzle clean and inspect for spark
erosion.
g.
e.
Remove burner blast tube and clean
thoroughly. Check combustion head settings
are correct, as specified in the manufacturer's
technical information supplied with the burner.
Check diffuser disc slots are clean.
h.
f.
Remove, clean, and check electrodes
inspecting for any signs of deterioration or
crazing in porcelain.
i.
Check electrode gaps are as specified
in the manufacturer's technical information
supplied with the burner.
9.3
Boiler Service Procedure
a.
a.
After removing burner, remove boiler
casing to gain access to front of boiler.
b.
b.
Slacken the two nuts on the non hinge
side of the front door of the boiler. Swing it
open to gain access to the boiler combustion
chamber and heat exchanger flueways and
thoroughly clean using a suitable brush(es)
and a vacuum cleaner.
c.
c.
Access to rear of heat exchanger
flueways and combustion chamber can be
obtained by removing flue box, cover plate
and insulation panels from rear of boiler.
Check condition of all insulation and replace if
necessary.
d.
N.B.
Removal of the rear cover plate and flue
box requires disconnection of flue.
e.
d.
After cleaning, close front door of boiler
ensuring that ceramic rope seal is both sound
and correctly positioned. Evenly tighten the
two nuts on the non-hinge side to secure the
door.
f.
e.
Refit boiler casing. For guidance, refer
to Section 7.
g.
f.
Refit burner. Reconnect fuel and
electrical supplies.
h.
g.
Turn on fuel supply and check
soundness of fuel supply pipework.
