• Introduction
1
7
•
Systems • Introduction
26
7
Selection procedure
7-1
Selection procedure
System based on cooling load
7-1-1
Indoor unit selection
Enter indoor unit capacity tables at given indoor and outdoor temperature.
Select the unit that the capacity is the nearest to and higher than the given load.
NOTE
1
Individual indoor unit capacity is subject to change by the combination. Actual capacity has to be calculated according to the combination by using
outdoor units capacity table.
7-1-2
Outdoor unit selection
Allowable combinations are indicated in indoor unit combination total capacity index table.
In general, oudoor units can be selected as follows though the location of the unit, zoning and usage of the rooms should be considered.
The indoor and outdoor unit combination is determined that the sum of indoor unit capacity index is nearest to and smaller than the capacity index at
100 % combination ratio of each outdoor unit. Up to 16 indoor units can be connected to one outdoor unit. It is recommended to choose a larger
outdoor unit if the installation space is large enough.
If the combination ratio is higher than 100 %, the indoor unit selection will have to be reviewed by using actual capacity of each indoor unit.
Indoor unit combination total capacity index table
Indoor unit capacity index
Outdoor unit
Indoor unit combination ratio
130 %
120 %
110 %
100 %
90 %
80 %
70%
60 %
50 %
RXYQ5M
162.5
150
137.5
125
112.5
100
87.5
75
62.5
RXYQ8M
260
240
220
200
180
160
140
120
100
RXYQ10M
325
300
275
250
225
200
175
150
125
RXYQ12M
390
360
330
300
270
240
210
180
150
RXYQ14M
455
420
385
350
315
280
245
210
175
RXYQ16M
520
480
440
400
360
320
280
240
200
RXYQ18M
585
540
495
450
405
360
315
270
225
RXYQ20M
650
600
550
500
450
400
350
300
250
RXYQ22M
715
660
605
550
495
440
385
330
275
RXYQ24M
780
720
660
600
540
480
420
360
300
RXYQ26M
845
780
715
650
585
520
455
390
325
RXYQ28M
910
840
770
700
630
560
490
420
350
RXYQ30M
975
900
825
750
675
600
525
450
375
RXYQ32M
1,040
960
880
800
720
640
560
480
400
RXYQ34M
1,105
1,020
935
850
765
680
595
510
425
RXYQ36M
1,170
1,080
990
900
810
720
630
540
450
RXYQ38M
1,235
1,140
1,045
950
855
760
665
570
475
RXYQ40M
1,300
1,200
1,100
1,000
900
800
700
600
500
RXYQ42M
1,365
1,260
1,155
1,050
945
840
735
630
525
RXYQ44M
1,430
1,320
1,210
1,100
990
880
770
660
550
RXYQ46M
1,495
1,380
1,265
1,150
1,035
920
805
690
575
RXYQ48M
1,560
1,440
1,320
1,200
1,080
960
840
720
600
Model
20
25
32
40
50
63
80
100
125
200
250
Capacity index
20
25
31.25
40
50
62.5
80
100
125
200
250
Содержание FXZQ-MVE
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