Glow-worm 30ci Plus - Manual (Page 33)

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REMEMBER, 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 Hepworth Heating.
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 conditions 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.
17.1 Products of combustion check
Top Flue: To obtain a products of combustion reading, unscrew
the left hand sampling point cap on the flue elbow, located on
top of boiler, see diagram 17.1.
Rear Flue: To obtain a products of combustion reading,
unscrew the sampling point cap on the flue spigot, located
between the boiler and the wall, see diagram 17.1.
Connect the analyser tube onto sampling point.
Refer to the combustion product values in Section 1 Technical
Data.
Switch on the electrical supply and gas supply, then operate
the boiler.
On completion of the test switch off the electrical supply and
the gas supply, remove analyser tube and replace sampling
point cap.
17.2 Service Check and Preparation.
• Isolate boiler from the gas and electrical supplies.
• Drain the Domestic hot water cuircuit and the boiler, refer to
diagram 17.2.
• On completion check all gas-carrying parts for soundness
with leak detection fluid.
• Remove boiler casing as follows:
17.3 Front panel
• Unscrew and remove the two retaining screws from the
bottom of the front panel.
• Remove front panel by lifting up and forward.
17 Routine Cleaning and Inspection
17.4 Control panel
• Lower forwards to gain access to lower part of boiler.
17.5 Sealed chamber cover
• Unscrew and remove the two retaining screws from the
sealed chamber cover, see diagram. 17.3.
• Lift cover up and off pins on top of boiler.
17.6 Side panels (for ease of access if
available), refer to diagram 17.4
• Unscrew and remove the two retaining screws from front of
each side panel.
• Left hand side panel only disconnect the control panel
retaining strap at the control panel.
• Unhook each panel from the front retaining tabs.
• Pull each panel forward from the rear retaining tabs to
remove.
9532
PRODUCTS
SAMPLING
POINT
Diagram 17.1
SAMPLING
POINT CAP
(view showing top of boiler)