Specifications
-
13
-
Height and length restrictions for refrigerant piping
(Twin type)
Indoor unitOutdoor unit
A
L
ra
rb
B
(Triple type)
Indoor unitOutdoor unit
A
L
ra
rb
rc
B
C
Indoor unit
A
L
ra
rArA
rb
rc
rd
rB
rC
rD
r2
r1
B
C
D
Outdoor unit
(Double-twin type)
Model FDCP808, 1008HES3
In the illustration the L is main piping and ra, rb, rc, and rd are branch piping.
● One-way pipe length (m) L+ra
≤
50, L+rb
≤
50, L+rc
≤
50, L+rd
≤
50
● Branch pipe length (m) ra
-
rb
≤
10, ra
-
rc
≤
10, rb
-
rc
≤
10
ra
-
rd
≤
10, rb
-
rd
≤
10, rc
-
rd
≤
10
ra
≤
30, rb
≤
30, rc
≤
30
,
rd
≤
30
rA
+
rB
≤
15, rC
+
rD
≤
15
● Vertical height difference between outdoor unit and indoor unit
Outdoor unit is higher Max. 30m
Outdoor unit is lower Max. 15m
● Difference in higher between indoor units Max. 4m
Request
(1) When the capacity of the indoor unit to be connected is 208 or less, be sure to use a pipe diameter of ø9.52 for the size of the
liquid piping of branch piping (between branch and indoor units). (for twin, triple, and double-twin only) For connections to
indoor units (liquid piping side dai. ø6.35) use the different diameter adapter coupling that is included in the branch piping
kit.
(2)For the branch be sure to select the specified branch pipe set (sold separately) and then to follow the directions of the
instruction manual included in the branch pipe set when installing the piping. Be sure to install the branch piping so that the
branch is level.