4 Unit installation
Installation manual
8
EL23E
Daikin Altherma 3 R MT F
4P708476-1 – 2023.03
PATTERN 2
A
B
A
nv
(≥A
nv-min
)
Min. 50%
of A
nv-min
PATTERN 2: Conditions ventilation openings
If you want to take advantage of the floor area of the adjacent room, you must provide 2 openings (one at the bottom, one at the top) between the rooms to
ensure natural ventilation. The openings must comply with the following conditions:
▪
Bottom opening (A
nv
):
▪ Must be a permanent opening that cannot be closed.
▪ Must be completely located between 0 and 300 mm from the floor.
▪ Must be ≥A
nv-min
(minimum bottom opening area).
▪ ≥50% of the required opening area A
nv-min
must be ≤200 mm from the floor.
▪ The bottom of the opening must be ≤100 mm from the floor.
▪ If the opening starts from the floor, the height of the opening must be ≥20 mm.
▪
Top opening:
▪ Must be a permanent opening that cannot be closed.
▪ Must be ≥50% of A
nv-min
(minimum bottom opening area).
▪ Must be ≥1.5 m from the floor.
