
Twin Flue Positions
When Flue & Air Terminals are
less than 500mm apart
When Flue & Air Terminals are
more than 500mm apart
Flue min. spacing Air min. spacing Flue min. spacing Air min. spacing
A
Below an opening (1)
300mm
50mm
300mm
50mm
B
Above an opening (1)
300mm
50mm
300mm
50mm
C
Horizontally to an opening
300mm
50mm
300mm
50mm
D
Below gutters,soil pipes or drain pipes
75mm
75mm
75mm
75mm
E
Below eaves
200mm
50mm
200mm
50mm
F
Below balcony or car port roof
200mm
50mm
200mm
50mm
G
From a vertical drain pipe or soil pipe
150mm
50mm
150mm
50mm
H
From an internal or external corner or to a boundary
alongside the terminal (2)
200mm
50mm
200mm
50mm
I
Above ground,roof or balcony level
300mm
100mm
300mm
100mm
J
From a surface or boundary facing the terminal
600mm
100mm
600mm
100mm
K
From a terminal facing a terminal
1200mm
1200mm
1200mm
1200mm
L
From an opening in the car port into the building
1200mm
100mm
1200mm
100mm
M
Vertically from a terminal on the same wall
1500mm
1500mm
1500mm
1500mm
N
Horizontally from a terminal on the same wall
300mm
300mm
300mm
300mm
O
From the wall on which the terminal is mounted
40mm
40mm
40mm
40mm
P
From a vertical structure on the roof
NA
NA
300mm
NA
Q
Above intersection with roof
NA
NA
150mm
NA
,(1)
In addition, for temperature and structural reasons, the terminal should not be nearer than 150 mm (fanned draught) to an
opening in the building fabric formed for the purpose of accommodating a built-in element such as a window frame
,(2)
The reference to external corners does not apply to building protrusions not exceeding 450 mm, such as disused chimneys on
external walls for: fanned draught appliances
TERMINAL POSITIONS
Flue
Pipe
Elbow
Minimum Separation
140mm
Acceptable
range of air
pipe siting
Terminal
Air Pipe
150mm
A
A
B
A
A = 600mm
B = 2000mm
The flue terminal shall not penetrate
the shaded area of the roof
If chimney penetrates dotted area such that
A is less than 300mm,
B shall not be less than 300mm.
When running flue pipes vertically
they MUST be a minimum of 140mm apart
and termination MUST comply with Sections 2.8
150mm
min
300mm
min
Pitched roof with structure
Air Terminal
Vertical termination must have an
elbow with terminal fitted directed from
roof, 150mm above roof intersection
with air taken from side wall or low level
(min 500mm separation).
Note. Recomend to fit deflector,
preventing rain ingress
2.9
FLUE TERMINATION POSITION
GENERAL INSTALLATIONS
All parts of the system must be
constructed in accordance with BS
5440 Part 1, except where specifically
mentioned in these instructions.
All pipe work must be adequately supported.
All joints other than approved push-
on or plastic compression connectors
must be made and sealed with solvent
cement suitable for muPVC pipes and
conforming to BS 6209.
Consideration must be given to Gas
Safe bulletin TB200/TB008 regarding
flues in voids.
The boiler casing must always be
correctly fitted to the boiler when leaving
the appliance operational.
External wall faces and any internal
faces of cavity walls must be good.
AIR SUPPLY
The Keston Heat is a room-sealed
appliance and therefore does not require
purpose provided ventilation to the boiler
room for combustion air.
COMPARTMENT INSTALLATION
Due to the low casing temperatures
generated by the boiler, no compartment
ventilation is required. However, the
cupboard or compartment must not be
used for storage.
20
Installation & Servicing
SECTION 2 - INSTALLATION
FLUE OUTLET
Содержание HEAT 2 45
Страница 4: ...4 Installation Servicing ...
Страница 78: ...78 Installation Servicing NOTES ...
Страница 79: ...79 Installation Servicing NOTES ...