Flue Pipe Position; Insulation Of The Gas Exhaust And Air Intake; Fitting A Horizontal Flue System - Daikin EHYKOMB33AA Installation And Operation Manual

b NOT allowed.
7.7.6

Flue pipe position

See the local and national regulations.
Especially for UK:
Only use flue products approved by the boiler manufacturer, which
can be bought from the supplier of your boiler.
options" [ 4 9].
See "5.2 Combining units and
S
A
M
Q
R
A
G
D
J
T2
F
N
E
Terminal position
A Directly below an open able window or
other opening (e.g. air brick)
B Below gutters, soil pipes or drain pipes
C Below eaves
D Below balconies or car front roofs
E From vertical drain pipes and soil pipe
F From internal or external corners
G Above ground, roof or balcony level
H From a surface facing a terminal
I From a terminal discharging towards
another terminal
J From an opening in a car port (e.g.
door, window) into a dwelling
K Vertically from a terminal on the same
wall
EHYKOMB33A
Daikin Altherma hybrid heat pump – gas boiler module
4P353067-1K – 2020.10
P
C
B
N
Q
Q
P
T2
T2
T
T1
F
H
I
K
L
Minimum
distance (mm)
300
75
200
150
300
600
1200
1500
Terminal position
L Horizontally from a terminal on the
same wall
M Above an opening, air brick, opening
windows, etc.
N Horizontally to an opening, air brick,
opening windows, etc.
P Above roof level (to base terminal)
Q From an adjacent wall to flue
R From an adjacent opening window
S From another roof terminal
- From an external boundary. Note: If the
terminal is facing a boundary, it is
recommended that an anti-plume kit be
fitted.
T Terminals adjacent to windows or
openings on pitched and flat roofs: The
T1
flue should NOT penetrate this area.
T2
NOTICE
The boiler manufacturer cannot be held responsible for
atmospheric conditions when siting flue terminals.
CAUTION
Once the flue system has been installed and the appliance
commissioned, the installer should observe the plume
direction. Particular attention should be drawn to plume
vapour reentering the gas boiler via the air intake. If this
occurs, it is highly possible the flue is fitted with a negative
pressure area and therefore a plume management kit
MUST be fitted.
7.7.7 Insulation of the gas exhaust and air
intake
Condensation may occur on the outside of the pipe material when
the material temperature is low and the environment temperature is
high with a high humidity. Use 10 mm damp-proof insulation material
when there is a risk of condensation.
7.7.8

Fitting a horizontal flue system

The 60/100 mm horizontal flue system may be extended up to a
maximum length as specified in the table indicating the maximum
pipe lengths. Calculate the equivalent length according to the
specifications in this manual.
CAUTION
Read the installation manuals of the field supplied parts.
The horizontal flue MUST be installed under a 3° fall towards the
boiler (50 mm per metre) and MUST be supported with a minimum
of 1 bracket at each meter length. Best recommended position of the
bracket is just before the joint.
INFORMATION
Flexible flue gas lines may NOT be used in horizontal
connection sections.
7 Installation
Minimum
distance (mm)
300
1000
600
2000
600
Installation and operation manual
21