Flues In Voids; Flue Gas Materials (C63) Available On The Market; About Securing The Flue System - Daikin Altherma EJHA04AAV3 Installer's Reference Manual

9.9.11

Flues in voids

Especially for UK:
The flue system must be connected in accordance with the
manufacturers 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.
Hatches must be a minimum of 300 mm×300 mm and positioned
with the edge of the inspection hatch to 1.5 m of any joint and at
changes of direction. Bends should be viewable from both directions
where the inspection hatch cannot be positioned at the bend.
Where suitable access is not provided the appliance must NOT be
commissioned and must be disconnected from the gas supply.
Additionally the entire flue and all flue seals must be installed in
accordance with the requirements of BS5440:
▪ Check if the condensate trap is filled with water and correctly
connected to the boiler.
▪ All flue joints are correctly made, unstressed and adequately
supported.
▪ All parts of the flue can be visually inspected. Ensure suitable
access where flue is positioned within voids.
9.9.12 Flue gas materials (C63) available on the
market
The properties of the combustion determine the choices for the flue
material. The standards EN 1443 and EN 1856‑1 provide the
necessary information for choosing the flow material by means of a
sticker including an identification string. The identification string
contains the following information:
EJHA04AAV3 + EHY2KOMB28+32AA
Daikin Altherma Hybrid hydrosplit heat pump
4P531180-1 – 2018.06
EN 14471 : 2013 T120 H1 W 1/2 O(00) LE E U0
a CE marking
b In case of metal, the standard must comply to EN 1856‑2.
In case of plastic, the standard must comply to EN 14471
The identification string needs to contain the following information:
c Temperature class: T120
d Pressure class: Pressure (P) or high pressure (Hi)
e Resistance class: Wet (W)
f Resistance class in case of fire: E
Dimensions C63 of the flue system (external dimensions in mm)
Parallel Concentric 80/125
Flue pipe Air inlet
Ø80 Ø80 Ø125
(+0.3 / –0.7) (+0.3 / –0.7) (+2 / –0)
WARNING
Flue materials of different markings must NOT be
combined.
9.9.13

About securing the flue system

CAUTION
▪ These regulations are typical for both concentric and
parallel flue systems.
▪ The flue system MUST be secured to a solid structure.
▪ The flue system should have a continuous fall back to
the boiler (1.5°~3°). Wall terminals MUST be installed
levelled.
▪ Only use accompanying brackets.
▪ Every elbow MUST be secured by using the bracket.
Exception at connecting on boiler: if the length of the
pipes before and after the first elbow are ≤250 mm, the
second element after the first elbow has to contain a
bracket. The bracket MUST be positioned on the
elbow.
▪ Every extension MUST be secured per meter with a
bracket. This bracket MUST not be clamped around the
pipe ensuring free movement of the pipe.
▪ Make sure that the bracket is locked into the correct
position depending on the position of the bracket on the
pipe or elbow.
▪ Do NOT mix flue parts or clamps of different suppliers.
9 Installation
a
0000
PY: 2017
f
e
d
c
0000
EN 14471 : 2013 T120 H1 W 1/2 O(00) LE E U0 PY: 2017
b
Concentric 60/100
Flue pipe Air inlet
Ø60 Ø100
(+0.3 / –0.7) (+2 / –0)
Installer reference guide
53