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Fig.6
Location requirements
1
2
1 Heat exchanger inspection hatch location
2 Support surface
A Clearance of 50 mm needed on the left side of the
boiler
4.3
Requirements for water connections
4.3.1
Requirements for the central heating connections
4.3.2
Requirements for the condensate drain
4.3.3
Flushing the system
7837114 - v.01 - 10012023
1490
A
B
A
B Clearance of 250 mm needed on the right side of the
boiler
Before installation, check that the connections meet the set
requirements.
Carry out any welding work required at a safe distance from the boiler.
If using synthetic pipes, follow the manufacturer's instructions.
We recommend installing a central heating filter in the return pipe to
prevent clogging of boiler components.
The drain pipe must be Ø 32 mm or larger, terminating in the drain.
Use only plastic material for the discharge pipe due to the acidity (pH 2
to 5) of the condensate.
Fit a trap in the drain pipe.
The drain pipe must slope down at least 30 mm per metre, the maximum
horizontal length is 5 metres.
Do not make a fixed connection in order to prevent an overpressure in
the trap.
The installation must be cleaned and flushed in accordance with BS 7593
(2019) and BSRIA BG 33/2014.
Before a new boiler can be connected to a system, the entire system must
be thoroughly cleaned by flushing it. The flushing will remove residue from
the installation process (weld slag, fixing products etc.) and accumulations
of dirt (silt, mud etc.)
2930
A
B
1690
B
4 Before installation
B
1690
B
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