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7.5
Condensate pipe and traps
The full length of the condensate pipe
should be check for leaks.
Before running the boiler, ensure that the
built in condensate trap and any other trap
in the drain system is correctly fi lled with
water.
Fill the built in condensate trap
by removing the fl ue elbow and
pouring a cupful of water into
the fl ue outlet ( Fig. 7.4 ).
Fig. 7.4
An alternative, to the removal of the fl ue el-
bow, pour the water through the fl ue sam-
pling point ( Fig. 7.5 )
Sampling points
Flue exhaust
Fig. 7.5
7.6
Checking the gas supply
pressure
This boiler has been factory tested to
the highest quality control standards
and set for the minimum and maximum
COMMISSIONING
gas working pressures, connected to a
1 m fl ue and a gas supply pressure of
20 mbar.
Any variation in gas supply pressure or
fl ue length may result in the customer
experiencing a harmonic noise from the
boiler. In these circumstances, it may be
necessary to reset the burner gas pres-
sures in accordance with section Gas
Valve of the Service Manual.
It should be noted that a Flue Gas Ana-
lyser is required for this procedure.
7.7
• Remove the boiler body's front panel, see
section "Dismantling the external panels"
to page 73 .
• When the boiler is switched off (out of or-
der), check the supply pressure by using the
23 point in Fig. 7.6 and compare the value
read with that reported on the Gas supply
pressure table in section "Technical data
Activ A 12OV" to page 24 , section "Techni-
cal data Activ A 15OV" to page 26 , section
"Technical data Activ A 20OV" to page 28
and section "Technical data Activ A 25OV"
to page 30 .
• Close well the pressure point 23 in Fig. 7.6 .
Checking the inlet pressure
- 57 -
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