4 Installation
Installation manual
20
D2C18ND0 D2HND012/18A5AA
Wall-mounted condensing boiler
3P469346-9J – 2018.05
h
i
L
j
f
g
b
c
a
c
d
e
a
Roof terminal 80 mm
b
Flat roof outlet kit
c
Extension 80 mm
d
Air intake 80 mm
e
60/100 to 80 80 adapter
f
90° elbow 80 mm
Optional:
g
Tile roof outlet kit
h
45° elbow 80 mm
i
90° elbow 80 mm
j
Extension 80 mm
L = 500-1000-2000 mm
Allowable flue length for C53x
D2T/H*
D2C*
Air intake duct 80 mm
3.0 m
3.0 m
Flue outlet duct 80 mm
125.0 m
109.0 m
Equivalent length of options
45° elbow 80 mm
1.0 m
90° elbow 80 mm
2.0 m
Subtract equivalent length value of bends from the allowable flue
length value.
Note:
The air intake length is 3 metres. In case of longer air intake
use, flue outlet duct length must be shortened with the same length.
Type C83x (twin pipes flue system)
The boiler draws combustion air from outside via a separate supply
pipe routed through the external wall, and expels flue gas to a
shared flue system.
The multi served chimney is a system that is part of the building and
has a separate CE marking. The connection between the boiler and
the shaft and, the connection between the boiler and the air intake
system must be obtained via Daikin.
In C83x type units, condensate flow into the unit is not allowed.
a
b
d
c
d
f
g
L
h
e
a
Wall plate
b
Extension 80 mm
c
60/100 to 80 80 adapter
d
90° elbow 80 mm
e
Air intake 80 mm
Optional:
f
45° elbow 80 mm
g
90° elbow 80 mm
h
Extension 80 mm
L = 500-1000-2000 mm
Type C93x
The boiler draws combustion air from the outside through the
annular gap in the shaft (chimney) and expels the flue gas via the
flue pipe to above the roof.
