Glow-worm Flexicom sx - Manual (Page 24)

0020107231_04 - 12/14 - Glow-worm
INSTALLATION
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10.4 Electrical Cartridge Securing
Fit electrical cartridge into the interface housing on completion
of the wiring, see diagram 10.4.
Secure with the two cartridge retaining screws provided in the
cartridge body.
Diagram 10.3
13369
Diagram 10.4
13922
10.5 Electrical Connections - Testing
Carry out preliminary electrical system checks as below:
1. Test insulation resistance to earth of mains cables.
2. Test the earth continuity and short circuit of cables.
3. Test the polarity of the mains.
NOTE: If you require to test the appliance refer to section 13.
11 Commissioning
IMPORTANT: If the appliance is to be left out of operation after
initial commissioning, ensure all system cleansing and inhibition
has been carried out fully and that power is left on to the
appliance. This is to ensure that there is no risk of flammable
gas collecting in the system due to corrosion.
At the time of commissioning, complete all relevant sections of
the Benchmark Checklist located in the inside back pages of
this document.
11.1 Pre-filling the Heating Circuit
Do Not operate the boiler without water.
The commissioning should be carried out by a competent
person approved at the time by the Health and Safety
Executive and in accordance with the current issue of
BS6798.
Make sure that the system has been thoroughly flushed
out with cold water and that all cleanser if used has been
removed.
With the gas service isolation valve closed, with no demand
from any external controls and the power supply to the boiler
switched off.
Test for gas tightness and purge air from the gas supply.
Refer to diagram 11.1
1. Once the system pipework has been completed it is
possible to pre fill the system before mounting the boiler if
so desired.
2. Ensure that the isolation valves are securely tightened into
the jig blanking plugs, see diagram 11.1.
3. Refer to diagram 11.2 and open the CH isolation valves
‘A’ by using a screwdriver or a 4mm allen key ensuring that
the slot is in line with the axis of the cock (shown closed in
diagram).
NOTE: A manometer kit accessory, part no. 0020016995 is
available to monitor system pressure during filling if required.
This should be attached to the drain point of one of the CH
isolation valves and the drain point opened to enable a reading
of the system pressure to be taken.
Fill the system until a fill pressure of approximately 1.0 bar is
achieved. Vent all air from the system and repeat the filling
procedure until the system is full and all air has been removed.