Fujitsu AOU48RLXFZ Design & Technical Manual page 157

EXAMPLE OF REFRIGERANT SYSTEM
Example 1 (OK)
Outdoor unit
Indoor unit 1
Model
Outdoor unit AOU48
Indoor unit 1 ARU24
Indoor unit 2 ARU18
Branch box 1
UTP-PU03A
Example 2 (OK)
Outdoor unit
Indoor unit 1 Indoor unit 2 Indoor unit 3
Model
Outdoor unit AOU48
Indoor unit 1 ARU24
Indoor unit 2 ARU24
Indoor unit 3 ARU12
Branch box 1
UTP-PU03A
Branch box 1
(Primary type)
Indoor unit 2
Total
Connectable indoor
Capacity
capacity unit capacity (BTU/h)
(BTU/h)
(BTU/h) Min.
48000 48000
2 80%
1
24000
38400
18000
42000
-
-
Branch box 1
(Primary type)
Total Connectable indoor
Capacity
capacity unit capacity (BTU/h)
(BTU/h)
Min.
(BTU/h)
48000 48000
2 80%
24000
1
24000
38400
60000
12000
- -
- (06 - 03) -
Max.
3 130%
62400
38400 < 42000 < 62400 → OK
- -
Max.
3 130%
62400
38400 < 60000 < 62400 → OK
- -
Capacity ratio
88%
Judgement
2 ≤ ≤ 3
1
-
Capacity ratio
125%
Judgement
2 ≤ ≤ 3
1
-
6. SYSTEM DESIGN