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1 General safety precautions
WARNING
If appliances contain R32 refrigerant, the floor area of the
room in which the appliances are installed, operated and
stored MUST be larger than the minimum floor area
defined in table below A (m
▪ Indoor units without a refrigerant leakage sensor; in
case of indoor units with refrigerant leakage sensor,
consult the installation manual
▪ Outdoor units installed or stored indoors (e.g. winter
garden, garage, machinery room)
▪ Pipework in unventilated spaces
To determine the minimum floor area
1 Determine the total refrigerant charge in the system (= factory
refrigerant charge
+
charged).
Contains fluorinated greenhouse gases
R32
1
=
kg
GWP: xxx
2
=
kg
2
1
kg
+
1
2
=
GWP × kg
=
tCO
1000
2 Determine which graph or table to use.
▪ For indoor units: Is the unit ceiling-mounted, wall-mounted or
floor-standing?
▪ For outdoor units installed or stored indoors, and field piping
in unventilated spaces, this depends on the installation
height:
If the installation height is... Then use the graph or table for...
<1.8 m
1.8≤x<2.2 m
≥2.2 m
3 Use the graph or table to determine the minimum floor area.
Installer reference guide
4
2
). This applies to:
additional refrigerant amount
eq
2
Floor-standing units
Wall-mounted units
Ceiling-mounted units
A
(m
)
2
min
550
540
530
520
510
500
490
480
470
460
450
440
430
420
410
400
390
380
370
360
350
340
330
320
310
300
290
280
270
260
250
240
230
220
210
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
1
1.4
1.8
2.2
2.6
3
3.4
3.8
1.2
1.6
2
2.4
2.8
3.2
3.6
Ceiling-mounted
Wall-mounted
unit
unit
(a)
m (kg)
A
(m
)
m (kg)
2
min
<1.224
—
<1.224
1.225
0.956
1.225
1.4
1.25
1.4
1.6
1.63
1.6
1.8
2.07
1.8
2.0
2.0
2.55
2.2
2.2
3.09
2.4
2.4
3.68
2.6
2.6
4.31
2.8
2.8
5.00
3.0
3.0
5.74
3.2
3.2
6.54
3.4
3.4
7.38
3.6
3.6
8.27
3.8
3.8
9.22
4.0
4.0
10.2
4.2
4.2
11.3
4.4
4.4
12.4
4.6
13.5
4.6
4.8
14.7
4.8
5.0
16.0
5.0
5.2
17.3
5.2
5.4
18.6
5.4
5.6
20.0
5.6
5.8
21.5
5.8
6.0
23.0
6.0
6.2
24.5
6.2
6.4
26.1
6.4
6.6
27.8
6.6
6.8
29.5
6.8
7.0
31.3
7.0
7.2
33.1
7.2
7.4
34.9
7.4
7.6
7.6
36.9
7.8
7.8
38.8
7.956
7.956
40.8
m
Total refrigerant charge in the system
(A)(F)TXP20~35L2V1B + FTXF20~71A2V1B
4.2
4.6
5
5.4
5.8
6.2
6.6
7
7.4
4
4.4
4.8
5.2
5.6
6
6.4
6.8
7.2
7.6
m (kg)
Floor-standing
unit
(b)
(c)
A
(m
)
m (kg)
A
2
min
min
—
<1.224
—
1.43
1.225
12.9
1.87
1.4
16.8
2.44
1.6
22.0
3.09
1.8
27.8
3.81
2.0
34.3
4.61
2.2
41.5
5.49
2.4
49.4
6.44
2.6
58.0
7.47
2.8
67.3
8.58
3.0
77.2
9.76
3.2
87.9
11.0
3.4
99.2
12.4
3.6
111
13.8
3.8
124
15.3
4.0
137
16.8
4.2
151
18.5
4.4
166
20.2
4.6
182
22.0
4.8
198
23.8
5.0
215
25.8
5.2
232
27.8
5.4
250
29.9
5.6
269
32.1
5.8
289
34.3
6.0
309
36.6
6.2
330
39.1
6.4
351
41.5
6.6
374
44.1
6.8
397
46.7
7.0
420
49.4
7.2
445
52.2
7.4
470
55.1
7.6
496
58.0
7.8
522
61.0
7.956
549
Daikin room air conditioner
4P513661-1 – 2017.10
7.8
7.956
(m
)
2
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