13
CONDENSATE DRAIN (Slave and Master)
A condensate drain must be connected to the condensate
bulk head connector on the back of each module and
then connected to a drainage point, preferably within the
building.
The pipe size from the condensate connector on the
lower rear panel is 21.5mm.
The routing of the drain must be made to allow a
minimum fall of 1 in 20 away from the boiler, throughout
its length.
14
BOILER WATER CONNECTIONS
The boiler ow and return pipes are terminated with 2 x R2" BSP male
connections at the rear of the appliance. Water returning from the system
should be connected to a lower header pipe, with the ow water connection
coming from a top header pipe. An optional pre-fabricated header pipe kit is
available.
Refer to Frames 1 and 2 for dimensional positions.
All ow and return pipework must be
independently supported.
Plastic plugs tted on the open ends of the
ow and return pipes must be removed before
connecting the system pipework.
An air vent must be provided immediately after the
ow connection.
If installing the boiler onto an existing system
it is strongly recommended that the system be
thoroughly ushed before connecting the boiler.
When connecting to a new system it is still important
to ush the whole system in accordance with the
relevant standards.
Condensate Bulkhead Connector
If the vertical ue header is specied the ue manifold
condensate drain connection must also be connected in the
same manner.
IMPORTANT. Any external runs must be kept to a minimum
and insulated. This is to avoid freezing in cold weather
causing blocking.
All pipework and ttings in the condensate drain system must
be made of plastic. No other materials may be used.
Note.
Connection to the boilers using manifolds must
use a reverse return principle to ensure equal
ow distribution through both of the modules, see
example below.
Connection of opposing ow and return points
can be made either on the LH side or RH side,
dependent upon the particular needs of the boiler
installation.
INSTALLATION
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