Fujitsu AOU48RLXFZ Design & Technical Manual page 159

Example 5 (Not good)
Outdoor unit
Indoor unit 1
Model
Outdoor unit AOU48
Indoor unit 1 ARU24
Branch box 1
UTP-PU03A
Example 6 (Not good)
Outdoor unit
Indoor unit 1 Indoor unit 2
Model
Outdoor unit AOU48
Indoor unit 1 ARU24
Indoor unit 2 ARU12
Branch box 1
UTP-PU03A
Branch box 1
(Primary type)
Total Connectable indoor
Capacity
capacity unit capacity (BTU/h)
(BTU/h)
(BTU/h) Min.
48000 48000
2 80%
1
24000
38400
24000
- -
Branch box 1
(Primary type)
Total Connectable indoor
Capacity
capacity unit capacity (BTU/h)
(BTU/h)
(BTU/h) Min.
48000 48000
2 80%
1
24000
38400
12000 36000
-
-
- (06 - 05) -
Max.
3 130%
Not good → Because only one
indoor unit is connected
62400
- -
Max.
3 130%
62400
36000 < 38400 → Not good
- -
Judgement
-
Capacity ratio
75%
Judgement
< 2
1
-
6. SYSTEM DESIGN