Supplied By www.heating spares.co Tel. 0161 620 6677
NOTE
The fl ue must be terminated in a place not
likely to cause a nuisance
4.6.2
A concentric vertical fl ue kit is available, for
fl ueing applications up to a maximun height
of 40 metres.
For further details see vertical fl ue installation
instructions.
4.7 AIR
SUPPLY
4.7.1
The following notes are intended for general
guidance.
The room sealed fan fl ued boiler does not re
quire a permanent air vent for combustion air
supply.
Where installed in a cupboard or compartment
ventilation is not required.
CONDENSATE DRAIN
A condensate drain is provided on the boiler
This drain must be connected to a drainage
point All pipework and fi ttings in the condesate
drainage system MUST be made of plastic-no
other materials may be used Discharge of
condensate DD X 189 1990 Y.
The drain outlet on the boiler is standard
3/4” (21 5 mm) push fi t overfl ow pipe.
NOTE:
Condensate drain pipework must
never be less than 15 mm.
Important:
any external runs must be carried
out in 1 1/4 (32 mm) wastepipe .
A fall of 2 5° (45 mm/m) all runs must have.
4.8
WATER CIRCULATION (central heating)
4.81
Detailed recommendations are given in BS
6798:1897/ 5449 : 1990 (for smallbore
and microbore central heating systems).
The following notes are given for general
guidance.
4.8.2 Pipework
Copper tubing to BS 2871 1.1.1971 is reco-
mended for water pipes Jointing should be
either with capillary soldered or with
compression
fi ttings.
Where possible pipes should have a gradient
to ensure air is carried naturally to air release
points and water fl ows naturally to drain taps,
It should be ensured as far as possible that
the appliance heat exchanger is not a natural
collecting point for air.
Except where providing useful heat, pipes
should be insulated to prevent heat loss and
to avoid freezing Particular attention should
be paid to pipes passing through ventilated
spaces in roofs and under fl oors.
Fig 6
Terminal position for fan assisted boiler
(minimum distance)
mm
11
Fig.6A
A- Directly below an open window or other
300
opening (e.g. air brick)
B - Below gutters, soil pipes or drain pipes 75
C - Below eaves 150
D - Below balconies or car port roof 200
E - From vertical drain pipes and soil pipes 150
F - From internal or external corners 300
G - Above ground or below balcony level 300
H - From a surface facing a terminal 600
I -
From a terminal facing a terminal 1200
J - From an opening in the car port
(e.g. door window) into dwelling. 1200
K - Vertically from a terminal on the same wall 1500
L - Horizontally from a terminal on the same wall 300
M - From adjacent wall to flue 300
Summary of Contents for HE Primary AAA
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