6 Installation
Installation and operation manual
17
EHY32AA
Daikin Altherma hybrid monobloc – Gas boiler module
4P538953-1 – 2018.06
INFORMATION
Carefully follow the instructions as described in the adapter
set.
6.8.3
Calculate the total piping length
When the resistance of the flue pipe and air supply pipe increase,
the appliance power will decrease. The maximum permitted
reduction in power is 5%.
The resistance of the air supply pipe and combustion gas flue
depends on:
▪ the length,
▪ the diameter,
▪ all components (bends, elbows,…).
The total permitted pipe length of the air supply and the combustion
gas flue is indicated for each appliance category.
Equivalent length for concentric installation (60/100)
Length (m)
Bend 90°
1.5
Bend 45°
1
Equivalent length for dual pipe installation
Length (m)
R/D=1
Bend 90°
2 m
Bend 45°
1 m
R/D=0.5
Elbow 90°
4 m
Elbow 45°
2 m
R
R
D
D
R/D=1
R/D=0.5
For a dual pipe connection, all defined lengths assume a diameter of
80 mm.
Sample calculation for dual pipe application
L6
L4
L3
L1
L2
L5
Pipe
Pipe length
Total pipe length
Flue pipe
L1+L2+L3+(2×2) m
13 m
Air supply
L4+L5+L6+(2×2) m
12 m
Total piping length = sum of the straight pipe lengths + sum of the
equivalent pipe length of bends/elbows.
6.8.4
Appliance categories and pipe lengths
Following installation methods are supported by the manufacturer.
Single boiler installation
Please note that NOT all flue gas configurations as described below
are allowed in all countries. Please follow the local and national
regulations.
