Fujitsu AB12 Service Manual page 10

HEAT RECOVERY MODEL
Pipe size connected to outdoor unit.
Model
AO 90
Between two adjacent refrigerant branch kits.
Total model code of
indoor unit
Less than 30
31 or more to 60
61 or more
Connection pipe size of indoor unit.
Model code of indoor unit
7, 9
12, 14
18, 20, 24, 25
30
36, 45, 54, 60
Suction Gas Pipe Discharge Gas Pipe
28.58
Suction Discharge
Gas Pipe Gas Pipe
15.88 12.7
19.05 15.88
28.58 19.05
Gas Pipe
9.53
12.7
15.88
15.88
19.05
– 10 –
19.05
Liquid Pipe Separation Kit
9.53
9.53
12.7
(unit : mm)
Liquid Pipe
6.35
6.35
6.35
9.53
9.53
(unit : mm)
Liquid Pipe
12.7
(unit : mm)
UTR-BP54R
UTR-BP90R