Glow-worm 23c - Manual (Page 15)

15 2000225000B
Diagram 9.1
9970
DISCHARGE SAFETY
VALVE (3 bar)
8 Piping System Installation
To avoid low gas pressure problems, it is recommended that the
15 mm gas supply on the boiler is connected to using 22 mm
pipe (as close as possible to the boiler within 1 metre).
• On completion, the gas installation must be tested using the
pressure drop method and purged in accordance with the
current issue of BS6891.
9 Boiler Installation
9.1 Statutory requirements
The installation of this boiler must be carried out by a qualified
registered person in accordance with the relevant requirements
of the current issue of:
The Gas Safety (Installation and Use) Regulations
The Building Regulations
The local water company Byelaws
The Building Standards Regulations (Scotland)
The Health and Safety at Work Act
9.2 Sheet metal parts
WARNING. When installing or servicing this boiler, care should
be taken when handling the edges of sheet metal parts to avoid
the possibility of personal injury.
9.3 Installing the boiler
Prior to starting work, the system must be thoroughly flushed
using a propriety cleanser such as Sentinel X300 to eliminate
any foreign matter and contamination e.g. metal filings, solder
particles, oil, grease etc.
Note. Solvent products could cause damage to the system.
The boiler pack consists of the boiler and a document envelope
and fittings pack which contain, literature, self adhesive wiring
diagram label, magnetic user instruction label, external controls
connector, guarantee return form, sealing washers, screws,
flue restrictor, cold water inlet restrictor, filling loop extension,
discharge safety valve pipe.
• IMPORTANT: With regards to the manual handling operations,
1992 regulations, the following operation exceeds the
recommended weight for one man lift.
• Stand the boiler upright.
• Remove all packaging from around the boiler.
• Remove the transit plate from the fan outlet, on top of the
boiler, secured with two screws.
• Remove front panel, unscrew and remove the two retaining
screws from the bottom of the front panel. Remove front panel
by lifting up and forward.
• If applicable remove the self adhesive wiring diagram label
from the document envelope. Fit the self adhesive wiring
diagram label to the inside of the front panel, put front panel in
a safe place to avoid damaging it.
• Ensure the plastic plugs are removed from water and gas
pipes. NOTE: There will be some spillage of water.
• Fit water flow restrictor into cold water inlet isolating valve, see
diagram 18.4.
Lift the boiler up and engage boiler upper part onto the hanging
bracket.
• Fit the washers between the boiler pipes and the inlet and
outlet fittings on the fixing jig and connect the various couplings
between the boiler and jig.
Gas Safety (Installation and use) Regulations
In your interests and that of gas safety, it is the law that ALL gas
appliances are installed and serviced by a competent person in
accordance with the above regulations.
9.4 Discharge safety valve, refer to diagram
9.1.
WARNING. It must not discharge above an entrance or window
or any type of public access area.
A short discharge pipe is supplied in the fittings pack, when fitted
to the safety valve it will end below the boiler. The discharge
pipe must be extended using not less than 15 mm o.d. pipe, to
discharge in a visible position outside the building, facing
downward preferably over a drain.
Note: Fit a compression fitting to facilitate service of the
appliance.
The pipe must have a continuous fall and be routed to a position
so that any discharge of water, possibly boiling or steam, cannot
create any danger to persons, damage to property or external
electrical components and wiring. Tighten all pipe connection
joints.
9.5 Filling loop extension
Remove the filling loop extension knob from the fittings kit. Fit
to the filling device on/off knob this is a push fit, see diagram 9.2.
Diagram 9.2
10089
FILLING LOOP
EXTENSION
FILLING
DEVICE