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Fill the built in condensate trap by
removing the flue elbow and pour-
ing a cupful of water into the flue
outlet (Fig. 7.4).
Fig. 7.4
An alternative, to the removal of the flue el-
bow, pour the water through the flue sampling
point (Fig. 7.5).
Fig. 7.5
7.7
Checking the gas supply pres-
sure
This boiler has been factory tested to the
highest quality control standards and set
for the minimum and maximum gas work-
ing pressures, connected to a 1 m flue and
a gas supply pressure of 20 mbar.
Any variation in gas supply pressure or
flue length may result in the customer ex-
periencing a harmonic noise from the boil-
er. In these circumstances, it may be nec-
essary to reset the burner gas pressures
in accordance with section 11 Gas Valve of
the Service Manual.
It should be noted that a Flue Gas Analyser
is required for this procedure.
- 64 -
COMMISSIONING
Sampling points
Flue exhaust
7.8
Checking the inlet pressure
• Remove the boiler body's front panel, see
section "Dismantling the external panels" to
page 80.
• When the boiler is switched off (out of or-
der), check the supply pressure by using the
35 point in Fig. 7.6 and compare the value
read with that reported on the Gas supply
pressure table in the "Technical Data" sec-
tion (pag. 32 Inovia 25C, pag. 35 Inovia
30C and pag. 38 Inovia 35C).
• Close well the pressure point 35 in Fig. 7.6.
A
B
35
Fig. 7.6
If it does not comply with the required pres-
sure check the gas supply line and governor
for faults and/or correct adjustment.
Where the boiler is connected to a gas sup-
ply which has a zero set governor then it is
necessary under the Gas Safe (Installation
and Use) Regulations 26.9. to perform a
combustion analysis test for CO/CO
limits for the boiler is given in "Technical
Data" section pag. 32 Inovia 25C, pag.
35 Inovia 30C and pag. 38 Inovia 35C: CO
(The
2
2
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