Fujitsu AUXG22KVLA Design & Technical Manual page 98

¢ Twin type
H2
Model name (Outdoor unit)
Indoor unit capacity (Indoor unit)
Main pipe diameter
(L1) (Standard)
Branch pipe diameter
(L2, L3) (Standard)
Maximum piping length
(L1 + L2 + L3)
Minimum piping length
(L1 + L2 + L3)
Maximum branch piping length
(L2, L3)
Maximum difference between branch
lengths (L2 to L3)
Maximum height difference (H1)
(Indoor unit to outdoor unit)
Maximum height difference (H2)
(Indoor unit to outdoor unit)
*: For the standard pipe diameter
2-2. Piping limitation
L2
L3 L1
H1
Liquid
mm (in)
Gas
Liquid
mm (in)
Gas
m
m
m
m
m
m
- 90 -
NOTE: Be certain to install indoor units in
the same room because the combi-
nations are for simultaneous opera-
tion. The lengths after branching
should be equal if possible.
AOYG36KBTB AOYG45KBTB
18 kBtu/h × 2 22 kBtu/h × 2
9.52 (3/8)
15.88 (5/8)
6.35 (1/4)
12.70 (1/2)
50*
0.5
AOYG54KBTB
24 kBtu/h × 2
5
20
8
30
2. Pipe design