Fujitsu AOU48RLXFZ - Page 159

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