Plume Management Terminal Positions - Worcester Greenstar 25Si Compact Installation, Commissioning And Servicing Instructions

PRE-INSTALLATION

4.10 PLUME MANAGEMENT TERMINAL POSITIONS

All measurements in millimetres
Plume re-direction:
1
180°
±80°
200
300
2
200
150
200
300
3
150
1,200
Fig. 18 Plume terminal positions
Maximum and minimum plume management lengths:
▶ A minimum distance of 500mm must be maintained between the plume management outlet and the flue air intake.
▶ The maximum plume management length is 4.5 metres for the appliances detailed on the front of this manual.
▶ The 45° bend is equivalent to 0.75 metres of straight plume management and the 90° bend is equivalent to 1.5 metres.
NOTICE:
▶ All measurements are the minimum clearances required.
▶ Refer to previous page for all concentric flue terminal positions unless the flue position is specified on the figure above "Plume
terminal positions".
▶ Terminals must be positioned so to avoid combustion products entering the building.
▶ Support the flue at approximately one metre intervals and at a change of direction, use suitable brackets and fittings.
Key to illustration
1. This feature allows some basic plume re-direction options on a
standard telescopic horizontal flue terminal.
300mm minimum clearances to a opening e.g. window.
However the minimum clearances to an opening in the direction that
the plume management is facing, must be increased to 1,500mm.
Where the flue is less than 150mm to a drainpipe and plume re-
direction is used the deflector should not be directed towards the
drainpipe.
2. 300mm adjacent to a boundary line.
3. Plume Management kit air intake can be reduced to 150mm
providing the flue exhaust outlet is no less than 300mm adjacent to
a boundary line.
4. 1,200mm between terminals facing each other.
5. 600mm distance to a boundary line, unless it will cause a nuisance.
BS 5440:Part 1 recommends that care is taken when siting terminal
in relation to boundary lines.
6. Using a Plume Management kit the air intake measurement can be
reduced to 150mm providing the flue exhaust outlet has a 300mm
clearance. The initial horizontal run from the terminal elbow must
have a minimum 10° fall back, (stop tabs in the elbow prevent less
than 10°) to the appliance for proper disposal of condensate. Any
further horizontal runs can be 3°.
22
1,500
5
600
300
300
150
4
Boundary Line
Flue terminal guard 7 716 191 176
±45°
Flue Exhaust
Outlet
Air Intake
6
25
300
300
300
7 25
150
150
– For details on specific lengths see relevant appliance Technical &
Specification information.
7. Internal/external corners. The air intake clearance can be reduced to
150mm providing the flue exhaust outlet has a 300mm clearance.
8. Clearances no less than 200mm from the lowest point of the
balcony or overhang.
9. 1,200mm from an opening in a car port on the same wall e.g. door
or window leading into the dwelling.
10. 600mm distance to a surface facing a terminal, unless it will cause a
nuisance. BS 5440: Part 1 recommends that care is taken when
siting terminals in relation to surfaces facing a terminal.
Note:
▶ Installations in car ports are not recommended.
▶ The flue cannot be lower than 1,000mm from the top
of a light well due to the build up of combustion
products.
▶ Dimensions from a flue terminal to a fanned air inlet
to be determined by the ventilation equipment
manufacturer.
Greenstar Si Compact
100
600
10
300
8
200
600
9
10
ErP - 6 720 813 278 (2015/07)