Flue System - Keston Heat 45 Installation And Servicing Instructions

11 flUe SySteM

iMPoRtAnt
When installing a replacement boiler re-use of existing flue is acceptable if the installer checks and confirms that;
• The flue pipe is the approved Marley/Polypipe/Terrain 50mm MuPVC solvent weld flue system.
• The flue installation is upgraded to the most recent flue standards taking particular care to comply withe flue in voids.
• A risk assessment is conducted to confirm the effectiveness of the flue.
• The existing flue will last the lifetime of the new appliance.
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Individual air supply and flue outlet pipes are used as standard.
The material used for flue outlet &/or air inlet must be muPVC (PVC-C) to BS 5255 and/or BSEN 1566-1 and BSEN
1329 of an internal diameter of 51mm. (i.e. nominal 50mm diameter muPVC solvent weld waste pipe).
Marley muPVC (PVC-C) Solvent Weld Waste System (50mm) and Polypipe System 2000 muPVC (PVC-C) solvent
weld waste (50mm) are the only systems approved for this application.
The following pipes and fittings are approved:
Polypipe System 2000 muPVC solvent Weld Waste System (50mm)
Poly Pipe Code
MU 301 4m length muPVC wastepipe 5/225
MU 313 50mm x 45 deg muPVC obtuse bend
MU 314 50mm x 92.5 deg muPVC swept bend
MU 310 50mm muPVC straigh coupling
MU 316 50mm x 92.5 deg muPVC swept pipe
Marley muPVC solvent Weld Waste System (50mm)
Marley Code
KP 304 50mm x 4m double spigot pipe
KP32 50mm x 45 deg bend
KSC3 50mm straight coupling
KB3 50mm x 88.5 deg bend
KT3 50mm swept tee
Both the 50mm flue outlet terminal and the 50mm air inlet terminal are supplied with the flue pack and are illustrated in Fig. 1
and must be used in ALL installations. (Both terminals are identical).
Keston Heat -
Installation & Servicing
INSTALLATION
Fig.1
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