Operation Manual

6.
COMMISSIONING
During commissioning the appliance, the following should be checked:
1.
Gas
Supply
2.
Water
Supply
3. CH Circuit
4.
Condensate
Trap
5. Flue Connections
6. Electrical Circuit
7. Flue
gas
Analysis
IMPORTANT: Open all
doors
and
windows,
extinguish
naked lights, and
DO
NOT SMOKE
whilst
purging
the
gas
line.
Before commencing the commissioning procedure, ensure that the central heating
system and the domestic hot and cold water system have been flushed. This will
remove contamination which could block the filters fitted to the cold inlet and C.H.
return connections resulting
in
incorrect functioning
of
the boiler.
6.1
GAS
SUPPLY
The
whole
gas
installation including the
meter
(if fitted)
MUST
be purged and
tested
for
gas
soundness.
Check
the
supply
inlet pressure to the boiler is correct
for
the type
of
gas
used.
6.2
DOMESTIC
HOT
WATER
Turn on the mains cold
water
isolation valve.
Fill and
vent
the installation
by
turning on hot and cold
water
taps.
Make sure that there are no leaks
in
the installation.
6.3 CENTRAL HEATING CIRCUIT
GAS PRESSURE
TEST
PO
INT
In
order
for
the boiler to function correctly, the pressure in the central heating
circuit
must
be between 1.0 and 1.4
bar
when cold. This can be seen by
pressing the button on the control panel and reading the value on the LCD
display.
The
pressure can be increased by the use
of
the filling loop - refer to
4.6.
The
central heating circuit should be filled with a
mix
of
water
and at least
25% antifreeze/inhibitor. In environments
were
temperatures drop
below
-11 deg
Celsius this percentage should be higher, with a maximum concentration
of
40%.
The
concentration d anti freeze I inhibitor should be checked using a refracto-
meter.
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