Potterton Promax 12 SL Installation And Service Instructions Manual page 19

Terminal Position with Minimum Distance (Fig. 17)
A a Directly below an opening, air brick, opening
windows, etc.
B a Above an opening, air brick, opening window etc.
C a Horizontally to an opening, air brick, opening window etc.
D Below gutters, soil pipes or drain pipes.
E Below eaves.
F Below balconies or car port roof.
G From a vertical drain pipe or soil pipe.
H From an internal (i) or external (ii) corner.
I Above ground, roof or balcony level.
J From a surface or boundary line facing a terminal.
K From a terminal facing a terminal (Horizontal flue).
From a terminal facing a terminal (Vertical flue).
L From an opening in carport (e.g. door, window)
into the dwelling.
M Vertically from a terminal on the same wall.
N Horizontally from a terminal on the same wall.
R From adjacent wall to flue (vertical only).
S From an adjacent opening window (vertical only).
T Adjacent to windows or openings on pitched and flat roofs.
U Below windows or openings on pitched roofs.
Table. 2
a In addition, the terminal should be no nearer than 150 mm to an
opening in the building fabric formed for the purpose of accommodating
a built-in element such as a window frame. See BS 5440 Pt. 1.
NOTE: The distance from a fanned draught appliance terminal
installed parallel to a boundary may not be less than 300mm in
accordance with the diagram below
Terminal
Assembly
Top View Rear Flue
Fig. 16a
J,K
N
R
M
I
I
F
L
Likely flue positions requiring
a flue terminal guard
© Baxi Heating UK Ltd 2007
300 min
*
Property Boundary Line
T
U
D
A
C
E
I
I
S
B
J,K
F
A
A
G
H
H
I
Fig. 17
(mm)
7.0 Site Requirements
300
300
300
7.7
25
NOTE: Due to the high efficiency of the boiler a plume of
25
water vapour will be discharged from the flue. This should
25
be taken into account when siting the flue terminal.
25
(i) 25 (ii) 115
1. The following guidelines indicate the general requirements
300
for siting balanced flue terminals. For GB recommendations are
600
given in BS 5440 Pt.1. For IE recommendations are given in the
1200
current edition of I.S. 813 "Domestic Gas Installations".
600
2. If the terminal discharges onto a pathway or passageway,
check that combustion products will not cause a nuisance and
1200
that the terminal will not obstruct the passageway.
1500
300
3. Take into consideration the effect the plume of vapour may
300
have on neighbours when siting the flue.
1000
600
4. Adjacent surfaces close to the flue terminal may need
2000
protection from the effects of condensation. Alternatively a flue
deflector kit (part no. 248167) is available.
5. For installation of the flue into an internal corner at the
25mm dimension the flue deflector kit (part no. 248167) must
be fitted.
6. * Reduction to the boundary is possible down to 25mm but
the flue deflector kit (part no. 248167) must be fitted.
7. If required a suitable terminal guard is available from Baxi for
use with the flue deflector.
8. For fitting under low soffits and eaves it is acceptable for the
flue to project upto 500mm from the face of the wall to the
inside of the air intake. This can be painted if required using a
suitable external paint.
9. If a terminal is less than 2 metres (78
above ground or above a flat roof to which people have access,
then a suitable terminal guard must be provided.
IMPORTANT:
• Only ONE 25mm clearance is allowed per installation.
• Under car ports we recommend the use of the plume
displacement kit.
• The terminal position must ensure the safe and
nuisance - free dispersal of combustion products.
IMPORTANT: If fitting a Plume
Displacement Flue Kit, the air inlet
must be a minimum of 100mm from
any opening windows or doors (see
Section 9.0).
Plume
Displacement Kit
Air Inlet
Fig. 17c
Flue
3 /
4
100mm
MIN.
in) above a balcony,
Opening Window
or Door
19