Installation
Connecting the boiler
Flue gas system is not to be connected
to the compensator!
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Gas connection (6)
The gas connection must be made by
an authorized installer in accordance
with the applicable national and local
standards and regulations.
Connect the gas line from the system
tension free to the gas connection (6) of
the boiler. A gas shut off valve should be
mounted directly behind the boiler.
A gas filter can be mounted directly on
the gas connection of the boiler.
6
Electrical connection (4)
The electrical connection must be made
by an authorized installer in accordance
with the applicable national and local
standards and regulations.
To access the electrical part, located
under the front panel, follow the
instructions on page 24.
WARNING!
Do not connect boiler electrical
supply to earth leakage control
devices.
For the power supply it's necessary
to use a mains isolator switch with a
contact opening of at least 3 mm
within the boiler room. This switch can
be used to switch off the power supply
for maintenance purposes.
Cables can be inserted through the
cable trays and glands at the back of the
electrical panel at the front of the boiler.
Connect all wires to the terminals
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according to the wiring diagram of the
boiler (See Wiring diagram pag. 50).
Pump requirements
To ensure a proper working of the boiler
you have the possibility to order one of
our accessories.
Contact your local dealer for more
information.
4
In case of selecting other pumps take in
account the following points:
•
The hydraulic resistance/flow of the
boiler and the installation!
See "Technical data" for the
resistance/flow of the boiler (see
page 10).
•
Respect the data of electrical
connections (max. currents) as
mentioned in the table "Electrical
connections" (see page 48 /
50).
•
Take in account the installation and
operating instructions of the pump
manufacturer and their regulations!
Important:
•
3400 version, all types: no
modulating pump possible!
•
Pump with a power
consumption >1,5kW must
have an external power
supply.
Gas supply
Check the gas supply connection to the
boiler for tightness. If any leakage is
found, reseal the leakage before starting
the boiler!
Bleed any air from the gas pipe.
This can be done at the test point (1) at
the gas pressure switch. Don't forget to
close the test point afterwards!
Check the gas type and values with the
local gas company, in order to know
for which gas type the boiler should be
commissioned.
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