Gas Supply; Air Supply; Ventilation; Condensate Drain - Biasi RIVA COMPACT HE M96.24SM/C User Manual And Installation Instructions

General requirements
K . Vertically from a terminal in the same wall
L . Horizontally from a terminal in the same wall 300
Table follows in next page
M Above the roof pitch with roof slope less
than or equal to 30°
Above the roof pitch with roof slope
more than 30° . . . . . . . . . . . . . . . . . . . . . . . . .
N . From wall face . . . . . . . . . . . . . . . . . . . . . . . . . .
O . From an opening . . . . . . . . . . . . . . . . . . . . . . . .
* specific manufacturer requirements
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
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 soundness.
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
cooling for this particular product. However con-
sideration must be given to clearance require-
ments for maintenance (see section 6.2) and
under no circumstances must stored articles be al-
lowed to come into contact with the boiler or flue
pipe.
5.7

Condensate drain

Ensure that the condensate discharge complies
with the national or local regulations in force.
The condensate pipe must be fitted in accordance
with Building Regulations.
Drainpipe material should be resistant to acid as
the condensate is slightly acid with a pH less than
6.5.
.
. . . . . . . . . . . . . . . . . . . . . .
The boiler includes a trap (17 on page 12) that pre-
1 500
.
vents the combustion products entering the drain,
however an additional trap with a seal of at least 75
mm and an air break between the traps is required
600
(Fig. 5.2).
1 000
The length of the condensate pipe should be kept
600
at minimum.
300
To avoid condensate being trapped:
--- the drainpipe should be run with a fall of at least
2.5° (45 mm/m) away from the boiler;
--- the number of bends and joints should be kept
at minimum;
--- the drainpipe should be adequately fixed to
pevent pipe sagging.
If a part of the drainpipe runs externally this part
should pe kept as short as possible and protected
to reduce the risk of freezing.
Fig. 5.2
5.8

Water circulation (c.h.)

Detailed recommendations are given in BS 6798
and BS 5449; the following notes are given for
general guidance.
Pipework
The return temperature must not be lower of
30 ° C.
Copper tubing to BS EN 1057 is recommended for
water pipes. Jointing should be either with capil-
lary soldered or with compression fittings.
Where possible pipes should have a gradient to
ensure air is carried naturally to air release points
and water flows naturally to drain taps.
The appliance has a built--- in automatic air release
valve, it should be ensured as far as possible that
the appliance heat exchanger is not a natural col-
lecting point for air.
rev. 17.09.93
Condensate drain
21