40
P5417009-rev.6
6.5 Piping Size and Multi-Kit Selection
For selecting the pipe sizes
1
between the outdoor unit and the piping connection kit, and the pipe size
2
between the piping connection kits
A
, refer to Section 6.4 “Piping Size between Outdoor Units.”
E
E
*
*
6
4
5
6
6
7
7
7
7
7
7
5
5
7
7
5
4
4
1
1
1
2
3
B
A
A
C
C
D
D
D
C
CH
CH
CH
CH
A
Outdoor
Unit
B
Outdoor
Unit
C
Outdoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Terminal
Indoor Unit
: High/Low Pressure Gas Pipe,
Low Pressure Gas Pipe, Liquid Pipe
: Gas Pipe, Liquid Pipe
: Low Pressure Gas Pipe, Liquid Pipe
CH : Change-Over Box (Single Branch Type)
(Exclusive Use of Cooling Operation)
E
5
C
CH-M
7
Indoor
Unit
7
Indoor
Unit
7
Indoor
Unit
7
Indoor
Unit
E
E
CH
Low Pressure
Gas Pipe
High/Low Pressure
Gas Pipe
Gas Pipe
Liquid Pipe
Two Pipes Portion
NOTE:
Change-over box (single branch type) is not connected to liquid pipe.
Three Pipes Portion
CH-M
High/Low Pressure Gas Pipe
Low Pressure Gas Pipe
Liquid Pipe
Gas Pipe
Liquid Pipe
Two Pipes Portion
Three Pipes Portion
Liquid Pipe
Gas Pipe
Two Pipes Portion
• • •
NOTE:
Refer to page 42 “ E Change-Over Box” for details of branch number.
CH-M : Change-Over Box (Multiple Branch Type)
*
Maintain a straight-line distance of 19-11/16 inches (500mm)
or more for piping after the piping connection kit.
6 7
5
5
6 7
5
5
6 7
6 7
5
6 7
6 7
7
5
F
5
7
7
5
4
CH
CH
CH
Indoor
Unit
Indoor
Unit
Indoor
Unit
7
7
7
6
Indoor
Unit
Indoor
Unit
Indoor
Unit
CH
5
NOTE:
Header branch cannot be connected to upstream or downstream piping of change-over box (multiple branch type).
Header Branch
G
Header Branch
If header branch is used instead of multi-kit.
D
C
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