Flues In Voids - Daikin Altherma R Hybrid Installer's Reference Manual

7 | Installation

7.12.11 Flues in voids

Installer reference guide
98
NOTICE
For each additional 90° elbow used the maximum flue length MUST be reduced by
1.5 m whilst the use of 2× 45° bends warrants a reduction of 2 m.
The horizontal part of the flue MUST be installed under a 3° fall towards the boiler
(5 mm per m) and MUST be supported with a minimum of 1 bracket at each 1 m
length. Best recommended position of the bracket is just before the joint.
CAUTION
▪
Sealing rings should ONLY be moisturized with water before use. Do NOT use
soap or other detergents.
▪
When installing flues in voids, make sure that they are connected and fixed
correctly. If in an existing situation a visual inspection is NOT possible, the boiler
must NOT be commissioned and remain disconnected from the gas supply until
suitable access has been realised.
▪
Make sure to follow the manufacturer's instructions regarding maximum length
of the flue system, the appropriate flue material, correct jointing methods and
the maximum distance between flue support.
▪
Make sure that all joints and seams are gastight and watertight.
▪
Make sure that the flue system has a uniform gradient back to the boiler.
Especially for UK:
The flue system must be connected in accordance with the manufacturer
instructions before firing the boiler.
The term void includes ceiling voids, floor voids, purpose built enclosures, service
risers, roof spaces or any other enclosure that will restrict access to inspect the
flue.
To allow visual inspection, without reliance on devices such as endoscopes,
cameras and mirrors, inspection hatches must be provided along the entire length
of the flue.
CHYHBH05+08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10