Determine The Plume Management System Length - Worcester Greenstar 25Si Compact Installation, Commissioning And Servicing Instructions

4.10.1 DETERMINE THE PLUME MANAGEMENT SYSTEM LENGTH

Effective straight flue length with plume management
Minimum plume length (M)
500mm
Max flue length (L) 5,000mm
Note: Measurement M plume length
▶ M must be a minimum of 500mm and must not exceed
4,500mm for a 60mm plume management system
used with the horizontal Ø 60/100mm flue.
MINIMUM PLUME MANAGEMENT LENGTH
The minimum plume length should be calculated to ensure that the air
inlet and exhaust have a minimum distance of 500mm between them
( figure 19).
The plume management can be in any configuration, within the
parameters of the plume management installation instructions, as long
as it does not terminate inside the shaded area.
WARNING: Minimum plume management length.
The minimum distance of 500mm must be maintained
between air inlet and exhaust.
▶ Do not terminate the plume management inside the
shaded area shown in figure 19
m
0 m
5 0
m m
5 0 0
Fig. 19 Terminal exclusion zone
NOTICE: Cutting the 500mm pipe
If the 500mm plume management pipe kit is cut, an
additional elbow will be required to join the pipe work.
▶ The Plume management extension kit contains the
components required for such a configuration.
Greenstar Si Compact ErP - 6 720 813 278 (2015/07)
Maximum plume length (M)
4,500mm
Max flue length (L) 2,200mm
5 0
0 m
m
±80°
67206646610-75.1Wo
FLUE LENGTH VERSUS PLUME MANAGEMENT LENGTH
L
Fig. 20 Effective lengths L and M
4,500
3,500
2,500
M
1,500
500
0 1,000 2,000 3,000 4,000 5,000 6,000
Fig. 21 Effective flue lengths versus plume management lengths
[Min] Minimum plume kit length 500mm
[M] Plume management length allowed (mm)
[L] Effective flue length (mm)
[1] 25 & 30Si Compact ErP data line
[2] Maximum plume length for all boilers
Refer to figure 21 to determine the appropriate plume length (M) versus
the flue length (L).
The lengths for both plume and flue are the effective lengths, which
includes the effective length of any bends plus the straight lengths.
The graph can be used to calculate:
• Effective flue length if a specific effective plume length is required.
• Effective plume length if a specific effective flue length is required.
PRE-INSTALLATION
6720803800-09.1Wo
1 2
Min
L
6720803800-08.1Wo
M
23