Arada BK555, Руководство по установке, Страница: 6 / 16

Chimneys should be as straight as possible.
Horizontal runs should be avoided except
where the rear outlet of the appliance is used,
in which case the horizontal section should not
exceed 150mm (6”) in length.
If the stove appears to be working hard but
produces very little output to the room it is
likely that excess draw is present in the
chimney and that heat is being sucked out of
the appliance and up the chimney. If this is
the case we recommend the fitting of a
draught stabiliser in preference to a flue
damper, in the interest of safety and
efficiency.
The installer should comply with Building
Regulations requirements in respect of
providing a Notice Plate giving details on the
chimney, flue lining, hearth and fireplace
installation.
INTEGRAL BOILERS
Integral boilers should only be connected with
the flow and return connections of any circuit
on opposite sides of the appliance (cross
flowed) and to an indirect hot water tank /
system with Fernox or other similar corrosion
inhibitor to prevent both corrosion and the for-
mation of limescale.
Stratford, Hamlet and Villager boiler models
are designed for use with indirect vented
central heating systems only. They are not
designed for connecting to direct domestic
hot water systems.
Connecting pipes should be screwed to a
maximum depth of 19mm for the face of the
tapping boss (1” BSP, parallel).
Remember to incorporate a drainage plug /
Arada Installation Manual
6
INSTALLATION
tap at the lowest point of the circuit to
facilitate draining and flushing.
If a pipe-stat is not fitted to control the radiator
circulation pump then cold water corrosion
may occur.
Water Connections
To connect the indirect hot water cylinder to
the stove use 28mm copper pipes. Ensure that
the pipes rise continuously to the cylinder.
Ensure that runs are not too long. (i.e. 6 metre
maximum each for flow and return). Install the
cylinder above the level of the fire and as
close to it as possible. Within reason the higher
the cylinder the faster the circulation. Ensure
no valves are present in the pipes.
In addition to providing hot water the primary
circuit is essential in providing a ‘heat leak’
radiator to absorb excessive heat produced in
the event of a circulating pump shutting
down.
Heat is produced in varying quantities while
the stove is alight and care must be taken to
ensure that effective circulation can occur
around the primary circuit to carry the heat
away thus preventing boiling. The heat output
of any radiator installed as a ‘heat
leak’ should not be less than 10% of the rated
output of the appliance to which it is
connected. It should not be fitted with a
control valve as it should never be turned off
or down. The hot water cylinder must be
indirect with a minimum capacity of 110 litres
conforming to BS 1566 part 1.
A radiator of approximately 2m
2
surface area
should be connected to the primary circuit.