Gas Supply; Air Supply; Ventilation; Condensate Drain - Biasi GARDA HE SYSTEM M96.28SR/P User Manual And Installation Instructions

General requirements
The minimum acceptable spacing from the ter-
minal to obstructions and ventilation openings are
specified in Fig. 5.1.
BC
G
E
JK
L
Fig. 5.1
Terminal position
A . Directly below a window or other opening
B . Below gutters, soil pipes or drain pipes
C . Below eaves . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D . Below balconies* . . . . . . . . . . . . . . . . . . . . . . . .
E . Below car port roof
F . From vertical drain pipes and soil pipes
G . From internal corners**
H . From external corners
I . . Above ground or balcony level
J . From a surface facing a terminal
K . From a terminal facing a terminal
L . From an opening in the car port
(e.g. door, window) into dwelling
M Vertically from a terminal in the same wall
N . Horizontally from a terminal in the same wall 300
O . Above the roof pitch with roof slope less
than or equal to 30û
Above the roof pitch with roof slope
more than 30û . . . . . . . . . . . . . . . . . . . . . . . . . . .
P . From wall face . . . . . . . . . . . . . . . . . . . . . . . . . .
Q . From, above or to side of an opening
*Wherever practicable to do so, the flue should be ex-
tended beyond the perimeter of the balcony
** Consideration should be given to adding protection
against condensate to the adjacent structure
5.4

Gas supply

The Gas meter is connected to the service pipe by
the local gas region or a local gas region contrac-
tor.
If the gas supply for the boiler serves other
appliances ensure that an adequate supply is
O
H
P I
F
A
D
Q
N M
I
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available both to the boiler and the other
appliance when they are in use at the same time.
Pipework must be of adequate size. Pipes of a
smaller size than the boiler inlet connection should
not be used.
Installation pipes should be fitted in accordance
with BS 6891 and the complete installation should
be tested for tightness.
For Ireland (IE), refer to I.S.813.2002.
5.5

Air supply

The room in which the boiler is installed does not
require a purpose provided air vent.
5.6

Ventilation

If installed in a cupboard or compartment, it is not
necessary to provide additional ventilation for
mm
cooling for this particular product. However con-
300 sideration must be given to clearance require-
75
ments for maintenance (see section 6.2) and
200
under no circumstances must stored articles be al-
600
lowed to come into contact with the boiler or flue
NO
pipe.
150
450
300
5.7

Condensate drain

300
600
Ensure that the condensate discharge complies
1 200
with the national or local regulations in force.
NO The condensate pipe must be fitted in accordance
1 500
with Building Regulations.
.
Drainpipe material should be resistant to acid as
the condensate is slightly acid with a pH less than
350
6.5.
600
The boiler includes a trap (14 on page 9) that pre-
600
vents the combustion products entering the drain,
300
however an additional trap with a seal of at least 75
mm and an air break between the traps is required
(Fig. 5.2).
The length of the condensate pipe should be kept
at minimum.
To avoid condensate being trapped:
--- the drainpipe should be run with a fall of at least
2.5û (45 mm/m) away from the boiler;
--- the number of bends and joints should be kept
at minimum;
rev 17 09 93
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