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Note:
- For THR 10-100 CS models bleed the primary cir-
cuit of the d.h.w. production system by manually
activating the 3 channel selector valves or by
making a d.h.w. request if the electrical connec-
tion is carried out.
Reminder: With THR 10-100 CS models, it is best to
fill the installation with water through the or
one of the d.h.w. outlets (see paragraph 4
- section IV - INSTALLATION).
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- Open the gas inlet isolation valves (item no. 7).
- Carefully bleed the gas piping. If the installation is
new, the bleed evacuates the air that is contained
in the piping so that the boiler has an adequate
fuel. Another effect of the gas bleed will be to eva-
cuate oxide particles from the piping that result
from agitating.
The presence of air in the gas prevents the igni-
tion of the burner and leads to safety shut-down
by the flame monitoring unit.
This is the case both with a natural gas and a
GPL new installation. With a GPL installation the
storage tank must also be bled properly before
commissioning.
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- Check the tightness of the connectors and the air-
tightness of the gas circuit using a foaming pro-
duct or a water column pressure gauge.
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- Check that the boiler is adequately adapted to the
gas used,
- check that the boiler is filled with water and that
pressure is applied (1.5 bars) - radiators bled, val-
ves open,
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- check that the boiler’s electrical connection is cor-
rect: 230 V, 50 Hz, conforming earth connection,
polarity observed,
- check that the combustion product evacuation
outlet is properly assembled, airtight and free
from any obstruction. Check that the heating sys-
tem ventilations are not obstructed,
- check that the siphons are filled with water,
- check that the condensate outlets are properly
connected.
86(5,1)250$7,21
- The heating engineer must inform the user about
the unit’s operating mode. In particular the user
must be informed about the function and the op-
eration of the safety systems and the need for
regular servicing by a qualified person.
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