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Glow-worm 18sxi User Manual

Glow-worm 18sxi
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30
0020008155A
12 Servicing
SECURING
SCREW (2 OFF)
SPARK GAP
3.5 to 4.5
Diagram 12.2
11410
GASKET
SPARK
ELECTRODE
Important Notes
To ensure the continued efficient and safe operation of the
boiler it is recommended that it is checked and serviced at
regular intervals. The frequency of servicing will depend upon
the particular installation and usage, but in general once a year
should be enough.
It is the Law that any servicing is carried out by a competent
person.
When replacing a part on this appliance, use only spare parts
that you can be assured conform to the safety and performance
specification that we require. Do not use reconditioned or copy
parts that have not been clearly authorised by Glow-worm.
12.1 General
Refer to Table 2 Section 1 Technical Information. Measurement
of the products of combustion can be achieved by connection
of a probe to the combustion analyser test point, see diagram
12.1.
IMPORTANT NOTE: Products of combustion will be discharged
when the cap is removed. It is important to replace the cap
immediately.
Before commencing with a service or replacement of parts the
boiler should be isolated from the electrical supply and the gas
supply should be turned off at the gas valve, see diagram 7.1.
All routine servicing requirements can be achieved by the
removal of the front panel and inner panel only. To remove
simply undo the two screws on the underside of the front panel
and lift off, see diagram 11.1. Undo the two screws on the front
of inner panel and lift off, see diagram 11.1.
Unless stated otherwise any part removed during servicing
should be replaced in the reverse order to removal.
Servicing should always include the removal of any debris from
the condensate pipe and siphon.
After completing any servicing of gas carrying components,
ALWAYS test for gas soundness and carry out a functional test
of the controls.
Testing Flue Gases: If any doubt exists that the flue products
are not exhausting correctly, investigate by use of a gas
analyser (FGA).
12.2 Spark Electrode
Disconnect the electrode lead and two securing screws.
Withdraw the spark electrode carefully from the combustion
chamber, see diagram 12.2 and 12.5.
Inspect the tips for damage.
Clean away any debris and check the spark gap is
3.5mm to 4.5 mm.
Check the electrode gasket for signs of leakage and replace if
necessary.
EARTH
LEAD
Diagram 12.1
12853
FLUE ELBOW
COMBUSTION
ANALYSER
TEST POINT
FLUE DUCT
EXTENSION

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Glow-worm 18sxi Specifications

General IconGeneral
Model18sxi
ManufacturerGlow-worm
CategoryBoiler
Output Rating18 kW
Fuel TypeNatural Gas
ErP RatingA
Warranty2 years
Operating Pressure3 bar

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