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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 ue incorporating a terminal and rubber wall seals.
Horizontal Flue Terminal (600mm long) ‘B’ Pack - contains: Flue turret, non telescopic single piece ue incorporating a terminal
and rubber wall seals.
Horizontal Flue Terminal (1000mm long) ‘B’ Pack - Flue turret, telescopic ue incorporating a terminal, rubber wall seals and instructions.
Note. If ‘B’ packs are used on their own (either 1 piece or telescopic), then they can be tted horizontally as the ue inside is
designed to slope 1.5 degrees.
‘D’ Pack - contains: 1 metre length of ue pipe (Functional length 950mm), 1 support bracket and instructions.
When extension ‘D’ Packs are used the ue 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 recommended that a support bracket is tted 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 - UIN 155988 & Concentric Flue Screw Retaining Kit (Optional Kit of mechanical xing of ue joints)
Only use water as a lubricant during assembly.
The ‘B’ pack terminal is classed as part of the maximum ue length.
These ue systems incorporates a removable ue outlet nose that utilises a push t location system. This enables the installation
of deector, high level or balcony ue kits without the removal of the whole ‘B’ pack terminal. The appliance must not be operated
without the desired outlet nose correctly tted 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 tted 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.
Additional Termination Kits available for use with these ‘B’ packs.
Flue Deector Kit The resistance is the equivalent of 1 metre of ue pipe and therefore must be deducted from
any maximum ue length
High Level Flue Outlet Kit
The maximum permissible concentric ue length when using a standard (500mm) kit is 4.5 metres
Balcony Flue Outlet Kit The maximum permissible concentric ue length when using this kit is dependant on the length
of the balcony ue outlet run which combined with the concentric run must not exceed the
maximum ue length requirement of the appliance it is to be tted to
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)
15 & 24 kW appliances Total Maximum: 9 metres - minus any ue kit options or bends
Total Maximum Permissible Vertical Flue Length combining both Roof Terminal and ‘D’ Packs
15 & 24 kW Appliances Total Maximum (60/100): 7.5 Metres - minus any bends
REAR FLUEING This is dedicated ue with no removeable nose section.
Total Maximum Permissable Rear Flue Length
15 & 24 kW Appliances Total Maximum (50/80) - 442mm - No additional bends etc allow
15 & 24 kW Appliances Total Minimum (50/80) - 115mm - No additional bends etc allow
Dedicated High Level Flue Outlet
Kit - see kit instruction for furher
details
(50/80) - Maximum Vertical Run - 15 & 24 kW - 11M
continued . . . . . .
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