Worcester Greenstar 12Ri Technical Information page 33

Condensfit II telescopic flue and plume management
system measuring
Fig A
L (max)
Fig B
L (max)
Effective straight flue lengths for telescopic flue
with plume management
Model
Max. straight flue
length (L) with min.
plume management
length 500mm (M)
Ri series
30CDi Classic Regular
40CDi Classic Regular
Flue length 'L' versus plume management kit – Greenstar CDi Classic Regular
8,000
7000
6000
5000
4000
3000
2000
1000
500 700 900
500mm
(min) (M)
4,500mm
(max) (M)
Fig. A Fig. B
Max. straight flue
length (L) with max.
plume management
length 4,500mm (M)
4,600mm 4,600mm
5,900mm 3,100mm
4,000mm 1,200mm
1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300 3500 3700 3900 4100 4300 4500
Plume management length 'M' (mm)
Greenstar Ri regular boilers are able to use the maximum
100mm dia. internal flue length of 4,600mm regardless of
the amount of plume management selected.
External plume management bends still need to be allowed
for. See below.
For Greenstar CDi Classic Regular boilers the 100mm dia.
internal flue length must be reduced by 700mm for every
additional 1,000mm of plume management, refer to table
and graph below.
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 pages 34-35.
Use the graph below 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, 2,000mm for each 90º bend
and 1,000mm for each 45º bend.
30CDi Classic Regular
■
40CDi Classic Regular
■
33