Daikin Altherma 3 R F Installer's Reference Manual page 66

7 | Unit installation
Total refrigerant charge in the
system
<1.84 kg (i.e. if the piping length is
<27 m)
≥1.84 kg (i.e. if the piping length is
≥27 m)
Ventilation openings
Minimum floor area
Restrictions
PATTERN 1
For PATTERN 1 you only need to comply with the spacing guidelines described in
requirements of the indoor
PATTERN 2 and 3
For PATTERN 2 and 3, additionally to the spacing guidelines described in
4
the indoor unit" [ 64], you also need to comply with the minimum floor area requirements as described in the
following flow chart. The flow chart uses the following tables:
in a room: indoor unit" [
Minimum bottom opening area for natural ventilation: indoor
Installer reference guide
66
If...
Living room, kitchen, garage, attic,
basement, storage room
Technical room (i.e. room that is
NEVER occupied by persons)
PATTERN 1
A
N/A
N/A
See "PATTERN
4
1" [ 66]
A Room A (= room where indoor unit is installed)
B
Room B (= adjacent room)
a1 Bottom opening for natural ventilation
a2 Top opening for natural ventilation
4
unit" [ 64].
4
271], "16.6 Table 2 – Minimum floor area: indoor
Room type
All
PATTERN 2
A
A
N/A Between room A
Room A Room A + Room B
See "PATTERN 2 and
"16.5 Table 1 – Maximum refrigerant charge allowed
4
unit" [ 272].
Then...
Allowed patterns
1
(2, 3 and 4 are superfluous. There is
no need to check the minimum floor
area or to provide ventilation
openings.)
2, 3
2, 3, 4
PATTERN 3 PATTERN 4
B
A
a2 a2
a1
a1
Between room A
and B and outside
4
3" [ 66] See
"7.1.3 Installation site
"7.1.3 Installation site requirements of
4
unit" [ 272] and
ERGA04~08EA + EHVH/X04+08S18+23EA/EJ
N/A
"PATTERN
4
4" [ 68]
"16.7 Table 3 –
Daikin Altherma 3 R F
4P629086-1A – 2021.11