Technical data

28
Effective straight flue lengths for telescopic flue with
plume management
Model Fig. A Fig. B
Max. straight flue Max. straight flue
length (L) with min. length (L) with max.
plume management plume management
length (M)* (mm) length (M)* (mm)
FS 30CDi Regular** 4,000 1,200
FS 42CDi Regular** 4,000 1,200
NOTE:
Plume management minimum straight length = 500mm
Plume management maximum straight length = 4,500mm
**For every additional 1,000mm of plume management
length (M), reduce flue length (L) by 700mm – see figures
A and B.
Condensfit II™ telescopic flue and plume management
system measuring
100mm dia. horizontal telescopic flue lengths with a
60mm dia. plume management system
The maximum effective straight flue lengths (L) are
stated opposite for the relevant appliance together with
the minimum and maximum lengths (M) of the plume
management system connected, these lengths must not
be exceeded.
60mm dia. plume management system
To ensure that the maximum total straight flue length along
the plume management route is not exceeded the following
should be added to dimension (M):
•
1,500mm for each extra 90º bend
•
750mm for each extra 45º bend
For plume management options with 60mm dia. extensions
refer to page 29.
Note: For information on the Condensfit II™ Telescopic
Flue System and Plume Management Kit,
please see dedicated flue Technical and
Specification leaflet 8 716 112 174.
1000
1500
2000
2500
3000
3500
4000
500 700 900 1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300 3500 3700 3900 4100 4300 4500
Plume management length allowed ‘M’ (mm)
Effective internal flue length ‘L’ (mm)
Flue length ‘L’ versus plume management kit
Use the graph above to determine the permissible plume
management length that can be used with your effective
flue length ‘L’.
The effective flue length can be determined by adding
together all the straight flue lengths and the effective
lengths of the bends used, 1,500mm for each 90º bend
and 750mm for each 45º bend.