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Fig. 7.6
• Make sure that the ambient thermostat is in
the "heat demand" position.
• Check that the boiler with the gas cock shut-
off goes into ignition lockout (Er01) and, in
the meantime, check the pump release.
• The pump release can be verified by check-
ing that the pump motor vibrates.
• If the pump motor does not vibrate, release
the boiler from its lockout due to gas failure
by pressing the reset button on the control
panel and repeat the sequence a maximum
of 10 times.
• If the pump does not release, contact tech-
nical support.
• Once the pump has been released, open
the gas cock and check that the boiler op-
erates correctly both in domestic hot water
and heating modes.
• Check the gas pressures and flow rates as
shown in section "GAS CONVERSION" to
page 67 of this booklet.
• Check that the condensate produced dur-
ing functioning fills the pipe and is regularly
drained in the draining plant pipe.
• Switch off the boiler by pressing the 11 (Fig.
7.5) key for 2 seconds until the
bol appears on the LCD display (Fig. 7.4).
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 filled with water.
Fill the built in condensate trap by
removing the flue elbow and
pouring a cupful of water into the
- 54 -
COMMISSIONING
°C
Fig. 7.7
An alternative, to avoid the removal of the flue
elbow, pour the water through the flue sam-
pling point (Fig. 7.8)
Fig. 7.8
7.6
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
sym-
a gas supply pressure of 20 mbar.
Any variation in gas supply pressure or
flue 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 11 Gas
Valve of the Service Manual.
It should be noted that a Flue Gas Analys-
er is required for this procedure.
flue outlet (Fig. 7.7).
Sampling points
Flue exhaust
Checking the gas supply pres-
sure
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