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4 Unit installation
4.1.3
Installation patterns
Depending on the type of room in which you install the indoor unit, different installation patterns are allowed:
Room type
Living room, kitchen, garage, attic, basement, storage room
Technical room (i.e. room that is NEVER occupied by persons)
b
a
Ventilation openings
Minimum floor area
Chimney
Release in case of
refrigerant leakage
Restrictions
A
Room A (= room where indoor unit is installed)
B
Room B (= adjacent room)
a
If no chimney is installed, this is the default point of release
in case of refrigerant leakage.
If needed, you can connect a chimney here.
b
Chimney
c1
Bottom opening for natural ventilation
c2
Top opening for natural ventilation
H
Actual release height:
release
1a 2a
: Without chimney. From floor to top of the unit.
(minimum 1.95 m)
1b 2b
: With chimney. From floor to top of the chimney.
3a
Installation with chimney connected to the outside. The
release height is not relevant. There are no requirements to
the minimum floor area.
N/A
Not applicable
Installation manual
6
PATTERN 1
PATTERN 2
A
A
b
b
1b
1a
N/A
Between room A and B
Room A
Room A + Room B
Might be needed
Might be needed
Inside room A
Inside room A
1" [ 4 7],
See
"PATTERN
"PATTERN
"Tables for PATTERN 1, 2 and
Allowed patterns
PATTERN 3
B
A
b
c2
3a
2b
2a
c1
N/A
N/A
Connected to outside
Outside
2" [ 4 7],
3" [ 4 9], and
"PATTERN
3" [ 4 9]
Minimum floor area / Release height:
▪ The minimum floor area requirements depend on the release
height of the refrigerant in case of a leakage. The higher the
release height, the lower the minimum floor area requirements.
▪ The default point of release (without chimney) is at the top of the
unit. To decrease the minimum floor area requirements, you can
increase the release height by installing a chimney. If the chimney
leads outside of the building, there are no requirements anymore
to the minimum floor area.
▪ You can also take advantage of the floor area of the adjacent
room (= room B) by providing ventilation openings between the
two rooms.
▪ For installations in technical rooms (i.e. room that is NEVER
occupied by persons), additionally to patterns 1, 2 and 3, you can
also use PATTERN 4. For this pattern there are no requirements
to the minimum floor area if you provide 2 openings (one at the
bottom, one at the top) between the room and the outside to
ensure natural ventilation. The room must be protected from frost.
WARNING
Chimney connection. When connecting a chimney, take
the following into account:
▪ Unit's connection point for the chimney = 1" male
thread. Use a compatible counterpart for the chimney.
▪ Make sure the connection is airtight.
▪ The chimney material is unimportant.
1, 2, 3
1, 2, 3, 4
PATTERN 4
A
c2
c1
Between room A and
outside
N/A
N/A
Inside room A
4" [ 4 11]
See
"PATTERN
ELBH/X12E
Daikin Altherma 3 R MT W
4P708482-1 – 2023.03
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