Glow-worm Flexicom 24cx - Commissioning 12; Commissioning

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11.4 Electrical Cartridge Securing
With the gas service isolation valve closed and with no
demand from any external controls, t the electrical cartridge
into the interface housing, see diagram 11.4.
Secure with the two cartridge retaining screws provided in the
cartridge body.
11 Electrical Connection
Diagram 11.3
13369
Diagram 11.4
13922
IMPORTANT: At the time of commissioning, complete all
relevant sections of the Benchmark Checklist located in the
centre pages of this document.
12.1 Pre-lling 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 ushed
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.
12 Commissioning
Refer to diagram 12.1
1. Ensure that the exible hose is connected to the double
check valve by tightening the knurled nut marked ‘E’.
2. Ensure that the water isolation valves are securely
tightened onto the jig blanking plugs.
3. Open the Central Heating Flow and Return isolation valves
marked ‘A’ using a screwdriver or a 4mm allen key - slot
in line with the axis of the isolation valves (shown closed in
diagram).
4. Ensure ALL cold water taps are shut off then open the
Domestic Cold Water isolation valve marked ‘B’ using a
screwdriver or a 3mm allen key - slot in line with the axis of
the isolation valve (shown closed in diagram).
NOTE: A manometer kit accessory, part no. 0020016995 is
available to monitor system pressure during lling, this should
be attached to the drain point connection marked ‘C’ and the
drain point opened to enable a reading of the system pressure
to be taken. If the manometer kit is not used caution should be
taken not to overpressurise the system.
11.5 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 14.