Technical data
1100..00 CCOOMMMMIISSSSIIOONNIINNGG
1100..22 FFAACCTTOORRYY SSEETTTTIINNGGSS
1. With the boiler firing at maximum gas rate, check that the
inlet pressure at the appliance is 19mbar +/- 1mbar when
measured at the inlet pressure test point (Fig. 44).
To set the boiler to maximum gas rate see section
11.0 (Service Mode).
2. Check the maximum and minimum gas rate at the gas meter
according to the table below using a stopwatch.
NNOOTTEE::
This boiler is supplied factory set for operation on
natural gas. No further adjustments of the air/gas ratio
valve or measurement of the combustion performance are
necessary at the time of installation and commissioning.
This is provided the appliance has been installed according
to these instructions and the inlet gas pressure is within
our specification.
© Dimple
x Boiler
s 2008
2255
NNOOTTEE::
If any doubts exist over the above checks then the
combustion of the appliance can be measured as described
in Section 12.0 of these ins
t
ructions pr
o
viding;
• The person carrying out the measurement has been
assessed as competent in the use of a flue gas analyser
and the interpretation of the results.
• The flue gas analyser used, meets the requirements of
BS7927 or BS-EN50379-3.
•
The
flu
e g
as analy
ser
i
s calibrated in accordance with the
manufacturers requirements.
1100..33 IINNLLEETT PPRREESSSSUURREE AANNDD GGAASS RRAATTEE CCHHEECCKKSS
1. On completion of the gas inlet pressure and gas rate checks,
it is necessary to check the following:
• The appliance installation conforms to these instructions.
•
The installation and integrity of the full flue system
including the se
als in the
flue pipes.
•
The boiler
combustion circuit, including the burner door
seal, combustion door seal.
2. The recorded combustion values should be compared with
the v
alues in Table 1 and Table 2 (see Section 12.2).
3. If the combustion value(s) is outside the values specified in
Section 12.2 (Tables 1 & 2), do not attempt to adjust the
air/g
as r
a
tio valve, please ring the helpline number -
00884444 337711 11112211.. IIff iinn ddoouubbtt -- AASSKK..
1100..44 CCOOMMBBUUSSTTIIOONN CCHHEECCKKSS DDUURRIINNGG CCOOMMMMIISSSSIIOONNIINNGG
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SSyysstteemm 1188
1.95 68.8 0.57 20.1
SSyysstteemm 3300
3.2 113 0.8 28.2
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FFiigg.. 4444
NNOOTTEE::
Factory set - warranty
void if adjusted
Throttle Adjuster Screw
GGaass VVaallvvee
Inlet Test Point