Appliance Categories And Pipe Lengths - Daikin Altherma H Hybrid EJHA04AAV3 Installer's Reference Manual

10 | Installation

10.9.4 Appliance categories and pipe lengths

Explanation of the flue systems
Category in accordance with CE
B A flue that evacuates the products of combustion
23
to the outside of the room containing the
appliance. The combustion air is drawn directly
from the room.
B A flue system which is connected to a common
33
duct system. This common duct system consists
of a single natural draught flue. All pressurized
parts of the appliance containing products of
combustion are completely enclosed by parts of
the appliance supplying combustion air.
Combustion air is drawn into the appliance from
the room by means of a concentric duct, which
encloses the flue. The air enters through defined
orifices situated in the surface of the duct.
Installer reference guide
118
Total piping length = sum of the straight pipe lengths + sum of the equivalent pipe
length of bends/elbows.
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.
INFORMATION
All piping lengths in the tables below are maximum equivalent piping lengths.
L1
C
13
1
INFORMATION
The above installation examples are just examples and can differ on some details.
L1
C
53
3
C
33
2
L1
C
93
4
Make sure the air inlet is open and complies to
the demands.
Make sure the air inlet is open and complies to
the demands.
EJHA04AAV3 + EHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P531180-1D – 2025.03