MXZ-SM36NAMHZ Service Manual

144
OCH789
Header-Branch Method
Connection Examples
(Connecting to 4 Indoor Units)
Outdoor Unit
First Branch
Indoor unit
A
B
C
A+a+b+c+d [ 492 ft [150 meters]
A+d [ 262 ft [80 meters]
d is 100 ft [30 meters]
164 ft [50 meters] (If the outdoor unit is lower, 131 ft [40 meters])
49 ft [15 meters]
Please select branching kit, which is sold separately, from the table below.
(The kit comprises sets for use with liquid pipes and for use with gas pipes.)
Total Piping Length
Farthest Piping Length
Farthest Piping Length After First Branch
High/Low Difference in Indoor/Outdoor Section
High/Low Difference in Indoor/Indoor Section
Permissible
Length
Permissible High/
Low Difference
(L)
(R)
(H)
(h)
■ Select Each Section of Refrigerant Piping
■ Selecting the Refrigerant Branch Kit
Select the size from the table to the right.
(1) Section From Outdoor Unit
to First Branch (A)
(2) Sections From Branch to
Indoor Unit (a,b,c,d)
Each
Section of
Piping
Branch header (4 branches)
CMY-Y64-G-E
Branch header (8 branches)
CMY-Y68-G-E
B
A
A
a
b
c
C
c
CC
d
H
h
L
r
■ Additional refrigerant charge
Liquid Line
Gas Line
Piping Diameter (inch[mm]) Model
Liquid Line (inch [mm]) Gas Line (inch [mm])
3/4 [ø19.05]3/8 [ø9.52]
Liquid Line
Gas Line
Liquid Line
Gas Line
Liquid Line
Gas Line
Piping Diameter (inch[mm])
Model number
– 18
24 – 54
72
1/4 [ø6.35]
1/2 [ø12.7]
3/8 [ø9.52]
5/8 [ø15.88]
3/8 [ø9.52]
3/4 [ø19.05]
(1) Refrigerant Piping Diameter In Section
From Outdoor Unit to First Branch
(Outdoor Unit Piping Diameter)
(3) Refrigerant Piping Diameter In Section
From Branch to Branch
(2) Refrigerant Piping Diameter In Section
From Branch to Indoor Unit
(Indoor Unit Piping Diameter)
3/8 [ø9.52]
3/4 [ø19.05]
MXZ-SM60
Refer to the same section in the previous page.