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18
7.0 Site Requirements
7.12
Flue Options
1. The Potterton Performa 28i can be fitted with
flue systems as illustrated.
2. The standard flue Kit No 247719 is suitable
only for horizontal applications.
3. Maximum permissible equivalent flue lengths
are:-
Concentric
4m
Vertical 4m
Vertical Two-Pipe
12m
4. Any additional “in line” bends in the flue system
must be taken into consideration. Their equivalent
lengths are:-
Concentric Pipes:
45° bend
0.5 metres
90° bend
1.0 metres
Twin Flue Pipe
45° bend
0.25 metres
90° bend
0.50 metres
The elbow supplied with the standard horizontal
flue is not included in any equivalent length
calculations
5. The illustrations opposite show examples of
maximum equivalent lengths.
6. Instructions for guidance and fitting are
included in each kit where appropriate.
Horizontal
Flues
Vertical
Flues
Vertical
Flues
(Twin Pipe)
Maximum Length = 3m inc. 2 x 45° bends
Maximum Length = 11m
inc. 4 x 45° bends
Maximum Length = 2m
inc. 2 x 90° bends
Содержание Performa 28i
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