Technical data

Installation
22 POTTERTON COMMERCIAL
120-393 632.4 04.08 Fh
The enclosed assembly instruction for the flue system has to be ob-
served.
5.5 Flue system
Additional Bends
Reduction of total length of flue pipe by:
– per 87°elbow = 1.00 m
Fig. 3: Flue options
Model PARA-
MOUNT two
30/40 60 80 95 115
Flue Type
Flue
Size
Max
Flue
Length*
Max.
No of
Bends
(90°)
Flue
Size
Max
Flue
Length*
Max.
No of
Bends
(90°)
Flue
Size
Max
Flue
Length*
Max.
No of
Bends
(90°)
Flue
Size
Max
Flue
Length*
Max.
No of
Bends
(90°)
Flue
Size
Max
Flue
Length*
Max.
No of
Bends
(90°)
C13 (Balanced Flue) 80/125 10(5) 2 110/150 5(5) 2 110/150 5(5) 2 110/160 5/5 2 110/160 5/5 2
C33(1) (Concen-
tric Vertical)
80/125 13 0 110/180 22 0 110/180 13 0 110/180 10/3 0 110/180 10/3 0
110/
160²
20 0 120/
180²
20 0 120/
180²
C33(2) (Concen-
tric Vertical)
80/125 15(3) 2 110/180 24(3) 2 110/180 15(3( 2 110/180 18/3 2 110/180 20/3 2
C33(3) (Concen-
tric Vertical)
80/125 7(3) 2 110/180 13(2) 2 110/180 9(3) 2 110/180 110/180
B23 (Conventio-
nal Flue)
2)
80 20(3) 3 110 25(3) 3 110 16(3) 3 110 20/3 2 110 20/3 2
* This is the maximum flue length, the allowable horizontal run within total flue length is shown in brackets.
For lengths longer than specified in the table please contact the Technical Department for suitability.
Note: Flue sizes shown for the Concentric Vertical Flue are adapted sizes for flues supplied by POTTERTON Commercial. For flues
supplied by other manufactors, please refer to technical data for standard spigot sizes.
2)
not supplied by POTTERTON
C13 the maximum flue length shown may give an output reduction of 5 % with the maximum flue shown.
Note: BS 5440 states a suitable guard should be provided whenever the appliance terminal is fitted less than 2 m above ground,
above a balcony or flat roof.