Opening And Closing The Unit; To Open The Indoor Unit - Daikin Altherma 3 R W Installation Manual

PATTERN 4
PATTERN 4 is only allowed for installations in technical rooms (i.e.
room that is NEVER occupied by persons). 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.
A
a2
Min. 50% of A
nv-min
a1
A nv (≥A )
nv-min
A
Unoccupied room where the indoor unit is installed.
Must be protected from frost.
a1 A : Bottom opening for natural ventilation between the
nv
unoccupied room and the outside.
▪ Must be a permanent opening that cannot be closed.
▪ Must be above ground level.
▪ Must be completely located between 0 and 300 mm from
the floor of the unoccupied room.
▪ Must be ≥A (minimum bottom opening area as
nv-min
specified in the table below).
▪ ≥50% of the required opening area A
≤200 mm from the floor of the unoccupied room.
▪ The bottom of the opening must be ≤100 mm from the
floor of the unoccupied room.
▪ If the opening starts from the floor, the height of the
opening must be ≥20 mm.
a2 Top opening for natural ventilation between room A and
the outside.
▪ Must be a permanent opening that cannot be closed.
▪ Must be ≥50% of A
nv-min
as specified in the table below).
▪ Must be ≥1.5 m from the floor of the unoccupied room.
A (minimum bottom opening area for natural ventilation)
nv-min
The minimum bottom opening area for natural ventilation between
the unoccupied room and the outside depends on the total
refrigerant in the system. For intermediate refrigerant charges, use
the row with the higher value. Example: If the refrigerant charge is
4.3 kg, use the row of 4.4 kg.
Total refrigerant charge (kg)
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
EHBH/X04+08EF
Daikin Altherma 3 R W
4P642727-1A – 2021.11
must be
nv-min
(minimum bottom opening area
A (dm²)
nv-min
7.2
7.5
7.8
8.2
8.5
8.8
9.1
9.3
9.6
Total refrigerant charge (kg)
3.8
4
4.2
4.4
4.6
4.8
5
5.2
5.4
5.6
5.8
4.2

Opening and closing the unit

4.2.1

To open the indoor unit

Overview
3
2
1
1
4
4
1 Front panel
2 Switch box cover
3 Switch box
4 User interface panel
Open
1 Remove the front panel.
2
2 If you have to connect electrical wiring, remove the switch box
cover.
4 Unit installation
A (dm²)
nv-min
9.9
10.1
10.4
10.6
10.9
11.1
11.3
11.5
11.8
12.0
12.2
2
1
3
Installation manual
9