3
CONNECT TO OUTDOOR UNIT
IN
S
ULATE PIPE
IN
S
ULATE PIPE
CONNECT TO 1 TO 4 INDOOR UNIT
S
HANGING BAR
BRANCH
BOX
a
40-1790
Fig. 3 — Branch Box Installation
OUTDOOR
UNIT
INDOOR
UNIT
BRANCH
BOX
A40-1792
40 in. MINIMUM
40 in.
MINIMUM
20 in. MINIMUM
20
in.
MINIMUM
Fig. 4 — Straight Pipe Minimum Lengths
BRANCH BOX
OUTDOOR UNIT
INDOOR UNIT
65 ft MAX.
OUTDOOR UNIT
T
O
INDOOR UNIT
ELEV
A
TION DIFFERENTIAL
26 ft MAX.
INDOOR UNIT
T
O
INDOOR UNIT
ELEV
A
TION
DIFFERENTIAL
A40-1791
Fig. 5 — Maximum Pipe Length and Elevation Differential
PIPE LENGTH
MAXIMUM
PIPING
TOTAL
(ACTUAL)
328 ft
L1+L2+L3+
L4+L5
MAXIMUM
PIPING
147 ft
L1+L2
L1+L3
L1+L4
L1+L5
BRANCH BOX
TO INDOOR UNIT
65 ft
L2, L3,
L4, L5
ELEVATION
DIFFERENTIAL
MAXIMUM
INDOOR UNIT TO
OUTDOOR UNIT
65 ft
INDOOR UNIT TO
INDOOR UNIT
26 ft
