Hitachi RAS-10FSXNPE, Instruction Manual

Page: 36 / 170

For heat recovery systems (3 pipes)
For selecting the pipe sizes between the outdoor unit and the piping connection kit

, between the piping connection kits

and for
piping connection kit Ⓐ , refer to the items from “Connection of refrigerant pipes for heat recovery system (3 pipes)” in the manual on
the CD-ROM.
G G
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
CH :
G
5
C
CH-M
7 7 7 7
G
G
CH
CH-M
• • •
*3
CH-M :
7
5 5
7 7
5
4
CH CH CH
7 7 7
6
CH
5
6 7
5
5
6 7
5
5
6 7
6 7
5
6 7
6 7
F E
High/Low pressure gas pipe, low pressure gas pipe, liquid pipe
Gas pipe, liquid pipe
Low pressure gas pipe, liquid pipe
CH-Box (Single branch type)
CH-Box (Multiple branch type)
Outdoor
unit A
Outdoor
unit B
Outdoor
unit C
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Terminal
Indoor
unit
Indoor
unit
Indoor
unit
Low pressure
gas pipe
Low pressure gas pipe
High/Low
pressure gas pipe
High/Low pressure gas pipe
Gas pipe
Gas pipe
Gas pipe
Liquid pipe
Liquid pipe
Liquid pipe
Liquid pipe
Two pipes section
Two pipes section
Two pipes section
Three pipes section
Three pipes section
CH-Box is not connected to liquid pipe
(Exclusive use of cooling operation)
Header branch
Header branch
!
C a U t i o n
Header branch cannot be connected to upstream or downstream piping of CH-Box multiple.
CH CH
CH-M
CH-M
CH-M
Upstream
Downstream
Header branch
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Header branch
Downstream Upstream
Change-over box
(Single Branch Type)
Change-over box
(Multiple Branch Type)
Change-over box
(Multiple Branch Type)
PIPING WORK AND REFRIGERANT CHARGE
PMML0479 rev.4 - 11/2018 14