Publication No. 5106227
10
Twin Flue with Vertical Balanced Flue
Terminal
Used in conjunction with the standard 60 mm twin
pipe system the Powermax Vertical system offers
an unobtrusive balanced flue terminal as an easy
to fit option for both pitched and flat roofs.
The twin flue system allows greater flexibility
when siting the appliance. It offers up to 12 m of
flue pipe and 12 m of air pipe, which must be
reduced to accommodate a number of bends for
more difficult applications. The minimum length is
1 m.
The separately supplied Vertical Terminal Kit (Part
No. 5106213) provides a combined air intake and
combustion gas outlet in a concentric
arrangement. Below the roof the terminal
changes into a twin pipe system.
Separate roof flashing units should be ordered for
pitched or flat roofs. Roof pitches from 15° to 55°
are catered for by selecting one of three roof
flashing units.
P231 for pitches 15° to 25°
P232 for pitches 25° to 45°
P233 for pitches 35° to 55°
P236 for flat roofs
To connect the Powermax HE to the vertical
terminal, a twin flue pipe kit (Part No. 5106260) is
required. This contains a range of extension
air/flue pipes and bends to enable the terminal to
be sited up to 2.5 m from the boiler. The maximum
overall length of the complete flue system must
not exceed the limits shown in Fig. 2, Page 3.
All additional flue lengths, flue bends and other
kits should be purchased separately as required.
See Pages 8 and 9.
Read the ‘Guidance Notes’ on Page 2 in
conjunction with the following notes prior to
installation.
a. The Powermax is a condensing appliance and
the flue system must have a generous fall
back to the appliance (nominally 2°) and be
adequately supported. This will ensure the
correct trouble free disposal of condensate
produced in the flue during normal operation.
b. All flue components contain rubber lip seals to
ensure both ease of assembly and excellent
sealing.
Refer to Page 6 before cutting.
Concentric to Twin Adaptor
507
1197
109
Flue
Ø80
Air
Ø80
Ø80 - Ø60
Reducers
120 centres
Vertical
Terminal
MAX0035B
Pitched Roof Flashing
Flat Roof Flashing
98
Ø390
Stabilising
Bracket
Can be angled to
align with roof
Vertical
Terminal
Roof
Extension
Flue
Air
Flue
Air
Air Pipe Ø60
Flue Pipe Ø60
Flue Duct
135˚
Bend
Pitched
Roof
Flashing
Reducer
(Ø80 to Ø60)
1m min
to
12m max
Vertical Concentric
Terminal
Part No.5106213
All
dimensions
in mm
120
(approx)
Fig. 11
Fig. 12
Twin Flue with Vertical Balanced Flue Terminal