15
2.7
POSITIONING
THE OUTLET TERMINALS
The outlet terminals for forced-draught
appliances may be located in the external
perimeter walls and roof of the building. To
provide some indications of possible solu-
tions,
Table 2
gives the minimum distances
to be observed, with reference to the type
of building shown in fig. 9.
2.8
ELECTRICAL CONNECTION
The boiler is supplied with an electric cable.
Should this require replacement, it must be
purchased exclusively from SIME.
The electric power supply to the boiler must
be 230V - 50Hz single-phase through a
fused main switch, fused at 3 amps with at
least 3 mm spacing between contacts.
Respect the L and N polarities and the
earth connection.
NOTE: SIME declines all responsibility for
– If the terminal discharges into a pathway or passageway check that combustion prod-
ucts will not cause nuisance and that the terminal will not obstruct the passageway.
– Where the lowest part of the terminal is fitted less than 2 m (78 in) above ground,
above a balcony or above a flat roof to which people have access, the terminal MUST
be protected by a purpose designed guard.
– Where the terminal is fitted within 850 mm (34 in) of a plastic or painted gutter, or
450 mm (18 in) of painted eaves, an aluminium shield at least 1,500 mm (59 in) long
must be fitted to the underside of the painted surface.
– The air inlet/outlet flue duct MUST NOT be closer than 25 mm (1 in) to combustible
material.
– In certain weather conditions the terminal may emit a plume of steam. This is normal
but positions where this would cause a nuisance should be avoided.
Fig. 9
Terminal position
Minimum spacing
A
Directly below an openable window, air vent
or any other ventilation opening
300 mm
12 in
B
Below guttering, drain pipes or soil pipes
75 mm
3 in
C/D
Below eaves, balconies or carport roof (*)
200 mm
8 in
E
From vertical drain pipes or soil pipes
75 mm
3 in
F
From internal or external corners
300 mm
12 in
G
Above adjacent ground, roof or balcony level
300 mm
12 in
H
From a boundary or surface facing the boiler
600 mm
24 in
I
From a terminal facing the terminal
1,200 mm
48 in
J
From an opening in the carport
(eg door, window into dwelling)
1,200 mm
48 in
K
Vertically from a terminal on the same wall
1,500 mm
60 in
L
Horizontally from a terminal on the same wall
300 mm
12 in
M
Horizontally from a vertical terminal to a wall
300 mm
12 in
N
Horizontally from an openable window or other opening
300 mm
12 in
P
Above an openable window or other opening
300 mm
12 in
Q
From an adjacent vertical terminal
600 mm
24 in
TABLE 2
* this distance can be reduced to 25 mm provided surfaces are protected from the
effects of condensate
