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It is normally envisaged that the feed and
expansion cistern will be located in the same
cupboard as the BoilerMate appliance itself to
maintain a dry roof space.
The cold feed/open vent pipework assembly
(as supplied) should be used if it is intended
to install the F & E cistern directly on top of
the appliance
However, if it is necessary to locate the cistern
in the roof space (or on a higher floor) the
cold feed/open vent pipework assembly (as
supplied) should be used to connect to the
F & E cistern and pipework site run by the
installer to connect this to the appliance.
Note: When fi tting the cistern at higher level
this must not be fi tted more than 6 meters
above the base of the BoilerMate A-Class
appliance.
Obviously, any pipework in the roof space and
the feed and expansion cistern will need to be
adequately insulated to protect against frost
damage.
Combined feed and open vent pipe
arrangements must not be used.
No valves should be fi tted in the safety open
vent which must be a minimum of 22mm
copper pipe or equivalent.
The overflow/warning pipe shall have a
continuous fall, be fitted to discharge clear
of the building and be sited so that any
Overfl ow can be easily observed. It shall also
be installed in a size and material suitable for
use with heating feed and expansion cisterns in
accordance with BS 5449 and should not have
any other connections to it.
Cold feed / open vent
pipework assembly
(as supplied)
Interconnecting
Pipework
(By Installer)
2.0 INSTALLATION
2.2 INSTALLATION
Summary of Contents for BoilerMate BMA 125 OV
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