14 Technical data
Installer reference guide
95
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA
Daikin Altherma – Low temperature split
4P495248-1 – 2017.12
14.5
Table 1 – Maximum refrigerant
charge allowed in a room: indoor
unit
A
room
(m
2
)
Maximum refrigerant charge in a room
(m
max
) (kg)
H=600 mm
1
0.138
2
0.276
3
0.414
4
0.553
5
0.691
6
0.829
7
0.907
8
0.970
9
1.028
10
1.084
11
1.137
12
1.187
13
1.236
14
1.283
15
1.328
16
1.371
17
1.413
18
1.454
19
1.494
20
1.533
21
1.571
22
1.608
23
1.644
24
1.679
25
1.714
26
1.748
27
1.781
28
1.814
29
1.846
30
1.877
31
1.909
INFORMATION
▪ For floorstanding models, the value of "Installation
height (H)" is considered 600 mm to comply to
IEC 60335-2-40:2013 A1 2016 Clause GG2.
▪ For intermediate A
room
values (i.e. when A
room
is
between two values from the table), consider the value
that corresponds to the lower A
room
value from the table.
If A
room
=12.5 m
2
, consider the value that corresponds to
"A
room
=12 m
2
".
14.6
Table 2 – Minimum floor area:
indoor unit
m
c
(kg)
Minimum floor area (m²)
H=600 mm
1.84
28.81
1.86
29.44
1.88
30.08
1.90
30.72
INFORMATION
▪ For floorstanding models, the value of "Installation
height (H)" is considered 600 mm to comply to
IEC 60335-2-40:2013 A1 2016 Clause GG2.
▪ For intermediate m
c
values (i.e. when m
c
is between
two values from the table), consider the value that
corresponds to the higher m
c
value from the table. If
m
c
=1.87 kg, consider the value that corresponds to
"m
c
=1.88 kg".
▪ Systems with total refrigerant charge lower than
1.84 kg are not subjected to any room requirements.
▪ Charges above 1.9 kg are not allowed in the unit.
14.7
Table 3 – Minimum venting
opening area for natural
ventilation: indoor unit
m
c
m
max
dm=m
c
–m
max
(kg) Minimum venting opening area
(cm
2
)
H=600 mm
1.9
0.1
1.80
729
1.9
0.3
1.60
648
1.9
0.5
1.40
567
1.9
0.7
1.20
486
1.9
0.9
1.00
418
1.9
1.1
0.80
370
1.9
1.3
0.60
301
1.9
1.5
0.40
216
1.9
1.7
0.20
115
INFORMATION
▪ For floorstanding models, the value of "Installation
height (H)" is considered 600 mm to comply to
IEC 60335-2-40:2013 A1 2016 Clause GG2.
▪ For intermediate dm values (i.e. when dm is between
two dm values from the table), consider the value that
corresponds to the higher dm value from the table. If
dm=1.55 kg, consider the value that corresponds to
"dm=1.6 kg".
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