DOWN DRAUGHTS
However well designed, constructed and positioned,
the satisfactory performance of the flue can be
adversely affected by down draught caused by
nearby hills, adjacent tall buildings or trees. These
can deflect wind to blow directly down the flue or
create a zone of high pressure over the terminal.
A suitable anti-down draught terminal or cowl will
usually effectively combat direct down blow but no
cowl is likely to prevent down blow due to high
pressure zone. Ensure that any cowl used will not
restrict the flue exit, or cause excessive back
draught. (See Fig.15)
14
Fig.15
WATER PIPE SIZE
The flow and return pipe must be 28mm diameter.
Care should be taken to ensure that the heating
system is correctly installed and that it complies with
all relevant codes of practice. If this appliance is
being connected to an existing system, we strongly
recommend that you engage an appropriately
qualified person to check the following:
(a) That the system is sound.
(b) That pipework is adequately insulated (where
applicable).
(c) Check all controls, i.e. pump, motorised valves,
time control etc. are operating satisfactorily and
are compatible with the requirements of the
cooker.
(d) Are any modifications necessary to make the
heating system more efficient?
(e) Cleanse the system and add suitable inhibitor.
The use of motorised valves, room thermostats,
radiator thermostatic valves, domestic hot water
controllers, etc, can greatly enhance a heating
system and we recommend their use.
Only competent personnel should be employed to
carry out your heating installation.
It is important that no external control devices e.g.
economisers be directly fitted to this appliance
unless covered by these installation instructions or
agreed with the manufacturer in writing. Any direct
connection of a control device not approved by the
manufacturer could make the guarantee void.
The flow and return can be taken either side of the
cooker. (See Fig.16)
1.
To take off from the left simply connect directly
onto the exposed boiler connection.
2.
To take off from the right side:
a.
Remove the two blanks on the right hand side
of the cooker. Then remove the two cover plates
from the cooker’s back panel.
b.
Remove the plugs from the boiler connections.
To avoid insulation from going into the flow and
return ports, cover with insulating tape.
c.
Using copper pipe, punch out a passage way
through the insulation material to the boiler
connections. Clear any insulation away from the
boiler connections.
d.
Before passing the flow and return pipes
through the cooker, cover the ends with tape to
avoid insulation entering them.
e.
Remove tape from pipes and boiler ports.
Connect pipes to boiler.
