Determining The Flue Length & Flue Packs Req'd - Zanussi ULTRA+ COMBI 30 Installation And Servicing

2.9 DETERMINING THE FLUE LENGTH AND FLUE PACKS REQUIRED
IMPORTANT. The boiler must be installed in a vertical position in
accordance to the installation instructions.
FLUE KITS
Telescopic Flue'B' Pack - contains: Flue turret, telescopic flue
incorporating a terminal and rubber wall seals.
Horizontal Flue Terminal (600mm long) 'B' Pack - contains: Flue
turret, non telescopic single piece flue incorporating a terminal and
rubber wall seals.
Horizontal Flue Terminal (1000mm long) 'B' Pack - Flue turret,
telescopic flue incorporating a terminal, rubber wall seals and
instructions.
Note. If 'B' packs are used on their own (either 1 piece or telescopic), then
they MUST be fitted horizontally as the flue inside is designed to slope 1.5
degrees.
D Pack Flue Extension 100mm DIA 1000mm long
D Pack Flue Extension 100mm DIA 500mm long
D Pack Flue Extension 100mm Dia 2000mm long
Roof Flue Kit with Vertical Connector
When extension 'D' Packs are used the flue duct must incline
1.5 degrees away from the appliance, to allow the condensate
to drain back to the boiler and out of the condensate drain. It is
Additional Termination Kits available for use with these 'B' packs.
Flue Deflector Kit
High Level Flue Outlet Kit
Balcony Flue Outlet Kit
Soffit Kit
Total Maximum Permissible Horizontal Concentric Flue Length combining both 'B' Packs and 'D' Packs
(Measured from centreline of the turret to the outside of the wall terminal)
30 kW Appliances
35 kW Appliances
Total Maximum Permissible Vertical Flue Length combining both Roof Terminal and 'D' Packs
30 & 35kW Appliances
Powered Vertical Flue
30 & 35kW Appliances
90º Elbow Kit 60/100 - (Equivalent flue length resistance = 1M)
45º Elbow Kit 60/100 - (Equivalent flue length resistance = 0.6M)
Minimum Horizontal Flue Lengths (Centre line of turret to outside of wall terminal)
Telescopic Flue 'B' Pack = 400mm
Horizontal Flue terminal (600mm long) 'B' Pack = 285mm
Wall Thickness
'B' Pack Flue Type 60/100
Horizontal Flue Terminal
(600mm long) B Pack
Telescopic Flue B Pack
Horizontal Flue Terminal
(1000mm long) B Pack
Horizontal Flue Terminal
(1000mm long) B Pack cut 75mm
* If wall thickness is <126 and >102.5, contact the manufacturer.
For Flue lengths between 658 & 708 use a Horizontal Flue Terminal (1000mm long) B Pack, cut 75mm off the end of the terminal
section of the telescopic flue only.
Installation and Servicing
SECTION 2 - INSTALLATION
The resistance is the equivalent of 1 metre of flue pipe and therefore must be deducted from
any maximum flue length
The maximum permissible concentric flue length when using a standard (500mm) kit is 4.5 metres
The maximum permissible concentric flue length when using this kit is dependant on the length
of the balcony flue outlet run which combined with the concentric run must not exceed the
maximum flue length requirement of the appliance it is to be fitted to
This kit enables fitment of an external flue below soffits.
Total Maximum: 8 metres - minus any flue kit options or bends
Total Maximum: 6 metres - minus any flue kit options or bends
Total Maximum: 7.5 Metres - minus any bends
Example: 5 Metres - Concentric Flue and 17m flue pipe only. For additional
configurations and details refer to the powered Vertical Instructions
Std Metric Brick 102.5mm wide
Minimum Permissible Wall Thickness
Rear Flue Rear Flue + Stand-Off
126* 102.5
231 186
546 501
471 426
recommended that a support bracket is fitted on every 1 metre of
pipe work used and the bracket is located as close to the collar as
possible. The bracketing must ensure a 1.5 degree fall back to the
appliance.
Optional Flue Finishing Kit - & Concentric Flue Screw Retaining
Kit (Optional Kit of mechanical fixing of flue joints)
Only use water as a lubricant during assembly.
The 'B' pack terminal is classed as part of the maximum flue
length.
These flue systems incorporate a removable flue outlet nose that
utilises a push fit location system. This enables the installation
of deflector, high level or balcony flue kits without the removal of
the whole 'B' pack terminal. The appliance must not be operated
without the desired outlet nose correctly fitted in place, ensuring
the side location dimples are in line with the mounting face allowing
the correct sealing of the components.
It is IMPORTANT that all attachments are fitted in accordance to
the installation instructions provided with them.
The TURRET supplied in the 'B' Pack has an upper combustion
sample point with a screw cap seal and a lower air sample point
with an air stopper seal. Ensure all caps & seals are in place.
Maximum Permissible Wall Thickness
Side Flue Rear Flue Rear Flue + Stand-Off Side Flue
102.5 501
186 429
501 761
426 686
456 456
384 384
716 716
641 641
21