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SECTION 2 - INSTALLATION
2 INSTALLATION
2.1 DETERMINING THE FLUE LENGTH
IMPORTANT. The boiler must be installed in a vertical position in accordance to the installation instructions.
STANDARD FLUE KITS
Horizontal Flue Terminal RSF303 (600mm long)
- contains: Flue turret, non telescopic single piece flue incorporating a terminal
and inner rubber wall seal.
Extension Kit RSF341
- contains: 1 metre length of flue pipe (Functional length 900mm), 1 support bracket.
When extension kits 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 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.
Only use water as a lubricant during assembly.
The horizontal flue kit terminal is classed as part of the maximum flue length.
Once the flue is installed it is IMPORTANT that the white air duct protrudes from the aluminum flue collar (RSF 060) by at
least 17mm. The gap between the aluminium flue collar (RSF 060) and the white air duct MUST be sealed with sealant to
create an adequate seal.
WALL
Aluminium Flue
Collar (RSF 060)
Fill with
sealant
17mm min
Internal Sealing
Flubber
Fill with
sealant
It is IMPORTANT that all attachments are fitted in accordance with the installation instructions provided in this manual.
The TURRET supplied in the Horizontal Flue Kits (RSF303 & RSF305) 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 Horizontal Flue Kits (RSF303 & RSF305)
Flue Deflector Kit (RSF300) The resistance is the equivalent of 1 metre of flue pipe and therefore must be deducted from
any maximum flue length
Total Maximum Permissible Horizontal Concentric Flue Length
combining both Horizontal Flue Kits and Extension Kits
(Measured from centreline of the turret to the outside face of the aluminium flue collar (RSF 060)
24 kW appliances
Total Maximum: 8 metres - minus any flue kit options
30 kW Appliances
Total Maximum: 7 metres - minus any flue kit options
Total Maximum Permissible Vertical Flue Length
24 & 30kW Appliances
Total Maximum: 7.5 Metres - minus any 90º bends
Minimum Horizontal Flue Lengths
(Centre line of turret to outside face of the aluminium flue collar (RSF 060)
Rear Flue
- 191mm
Side Flue
- 236mm (with minimum 2.5mm clearance)
