Selection Procedure; Selection Procedure System Based On Cooling Load - Daikin FXZQ-MVE Introduction Manual

7

Selection procedure

7-1 Selection procedure
1
7-1-1 Indoor unit selection
7
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
Outdoor unit
130 %
RXYQ5M 162.5
RXYQ8M 260
RXYQ10M 325
RXYQ12M 390
RXYQ14M 455
RXYQ16M 520
RXYQ18M 585
RXYQ20M 650
RXYQ22M 715
RXYQ24M 780
RXYQ26M 845
RXYQ28M 910
RXYQ30M 975
RXYQ32M 1,040
RXYQ34M 1,105
RXYQ36M 1,170
RXYQ38M 1,235
RXYQ40M 1,300
RXYQ42M 1,365
RXYQ44M 1,430
RXYQ46M 1,495
RXYQ48M 1,560
Indoor unit capacity index
Model 20
Capacity index 20
26
• Introduction
System based on cooling load
120 % 110 %
150 137.5
240 220
300 275
360 330
420 385
480 440
540 495
600 550
660 605
720 660
780 715
840 770
900 825
960 880
1,020 935
1,080 990
1,140 1,045
1,200 1,100
1,260 1,155
1,320 1,210
1,380 1,265
1,440 1,320
25 32 40
25 31.25 40
• Systems • Introduction
Indoor unit combination ratio
100 % 90 % 80 %
125 112.5 100
200 180 160
250 225 200
300 270 240
350 315 280
400 360 320
450 405 360
500 450 400
550 495 440
600 540 480
650 585 520
700 630 560
750 675 600
800 720 640
850 765 680
900 810 720
950 855 760
1,000 900 800
1,050 945 840
1,100 990 880
1,150 1,035 920
1,200 1,080 960
50 63 80
50 62.5 80
70% 60 %
87.5 75
140 120
175 150
210 180
245 210
280 240
315 270
350 300
385 330
420 360
455 390
490 420
525 450
560 480
595 510
630 540
665 570
700 600
735 630
770 660
805 690
840 720
100 125 200
100 125 200
50 %
62.5
100
125
150
175
200
225
250
275
300
325
350
375
400
425
450
475
500
525
550
575
600
250
250