Before installation
16
POTTERTON COMMERCIAL
120-393 632
.4 04.08 F
h
4.
Before installation
4.1
Combustion air supply
Concentric Flue Applications
The air supplied for the boiler space ventilation shall be such that
the maximum temperatures shall not exceed 25°C at floor level or
100 mm above, 32°C at mid level (1.5 m above floor level) and
40°C at ceiling level or 100 mm below ceiling level.
Refer to BS5440 2000 for boiler installations up 70 kW net and
BS6644 2005 for boilers above 70 kW net for further details.
The following tables give the total free area of the vents required
for single boiler installations in room sealed and open flue applica-
tions.
Clean combustion air!
The PARAMOUNT two must only be installed in rooms with clean
combustion air. Under no circumstances must e.g. pollen or the li-
kes enter through the intake openings into the inside of the PARA-
MOUNT two.
Table 6: Conventional flue Applications
Model PARAMOUNT two
30
40
60
80
95
115
Vent Position
cm² Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
In a room direct to
outside
cm²
105
Single
-
190
Single
-
290
Single
-
308 154
380
190
460
230
In a compartment
direct to outside
cm²
252
126
380
190
580
290
770
385
950
475
1150
575
In a compartment
via a room
cm²
504
252
760
380
1160
580
-
-
-
-
-
-
Table 7: Ventilation for use with room sealed applications
Model PARAMOUNT two
30
40
60
80
95
115
Vent Position
cm² Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
Low
Level
High
Level
In a room direct to
outside
cm²
No vent
required
No vent
required
No vent
required
154
154
190
190
230
230
In a compartment
direct to outside
cm²
126
126
190
190
290
290
385
385
475
475
575
575
In a compartment
via a room
cm²
252
252
380
380
580
580
770
770
950
950
1150
1150
Table 8: Mechanical Ventilation with conventional flue
Mechanical Inlet m³/s
Mechanical Extract m³/l
PARAMOUNT two 30
0.03
0.02
PARAMOUNT two 40
0.04
0.03
PARAMOUNT two 60
0.06
0.04
PARAMOUNT two 80
0.06
0.04
PARAMOUNT two 95
0.07
0.04
PARAMOUNT two 115
0.08
0.05