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28 CoMMiSSioninG And teStinG
A. electrical installation
1. Checks to ensure electrical safety should be carried out by a
competent person.
2. ALWAYS carry out the preliminary electrical system checks, i.e.
earth continuity, polarity, resistance to earth and short circuit,
using a suitable test meter.
3. After wiring the boiler, all grommets in the bottom panel MUST
be in place to ensure that the boiler case sealing is maintained.
Warning.
Whilst effecting the required gas tightness test and purging air from the gas installation,
open all windows and doors, extinguish naked lights and do noT smokE.
GeneRAl
Please note: The combustion for this appliance
has been checked, adjusted and p at the factory for
operation on the gas type defined on the appliance
data plate. do not adjust the air/gas ratio valve.
Having checked:
-
That the boiler has been installed in accordance
with these instructions.
-
The integrity of the flue system and the flue seals,
as described in the Flue Installation section.
Proceed to put the boiler into operation as follows:
CHECK THE OPERATIONAL (WORKING) GAS
inlet PReSSURe
CH Flow
Set up the boiler to operate at maximum rate by
opening hot tap to maximum flow.
With the boiler operating in
the maximum rate condition
check that the operational
(working) gas pressure at
the inlet gas pressure test
point complies with the
requirements - refer to "Gas
Black
Supply" on page 10.
Handle
Ensure that this inlet pressure
can be obtained with all other
gas appliances in the property
working.
As part of the commissioning process, the combustion of this appliance must be checked
and the Benchmark Checklist completed. A flow chart to assist is provided on page 65.
it iS A Condition of tHe MAnUfACtUReRS WARRAnty tHAt tHe
benCHMARK CoMMiSSioninG CHeCKliSt iS fUlly CoMPleted
i-mini -
Installation and Servicing
INSTALLATION
DHW Outlet
Gas Supply
Yellow
Handle
Gas Pressure
Test Point
And left WitH tHe APPliAnCe
b. Gas installation
1. The whole of the gas installation, including the meter,
should be inspected and tested for tightness and
purged in accordance with the recommendations of
BS. 6891.
In IE refer to IS.813:2002.
2. Purge air from the gas installation by the approved
methods only.
DHW Inlet
CH Return
Blue
Handle
3G9927
Attention !
Safety
Drain
Valve
Black
Handle
31
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