Mitsubishi Electric PUMY-P250YBM2-BS, Техническое и сервисное руководство

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119
TCH091
Method of Combined Branching of
Lines and Headers
Connection Examples
(Connecting to 5 Indoor Units)
Permissible
Length
Total Piping Length A+B+C+a+b+c+d+e
[
310m
Farthest Piping Length (L) A+B+b
[
150m
Farthest Piping Length
After First Branch
(
R
) B+b
[
30m
Permissible
High/Low
Difference
High/Low Difference in
Indoor/Outdoor Section
(H)
H
[
50 m (In the case of outdoor unit is set higher than indoor unit)
H
[
40 m (In the case of outdoor unit is set lower than indoor unit)
High/Low Difference in
Indoor/Indoor Section
(h)
h
[
15 m
■ Selecting the Refrigerant Branch Kit 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.)
Branch Joint Branch header (4 branches) Branch header (8 branches)
CMY-Y62-G-E CMY-Y64-G-E CMY-Y68-G-E
■ Select Each Section of Refrigerant
Piping
(1) Section From Outdoor
Unit to First Branch (A)
Each
Section of
Piping
(2) Sections From Branch to
Indoor Unit (a,b,c,d,e)
(3) Section From Branch to
Branch (B,C)
Select the size from the table to the
right.
(1) Refrigerant Piping Diameter In Section
From Outdoor Unit to First Branch
(Outdoor Unit Piping Diameter)
A (mm)
(3) Refrigerant Piping Diameter In Section
From Branch to Branch
B, C, D
(2) Refrigerant Piping Diameter In Section
From Branch to Indoor Unit
(Indoor Unit Piping Diameter)
a, b, c, d, e (mm)
Model number Liquid pipe Gas pipe
10 – 50 ø6.35 ø 12.7
63 – 140 ø9.52 ø 15.88
200 ø9.52 ø 19.05
250 ø9.52 ø22.2
L: The farthest piping length from the outdoor unit to an indoor unit.
* ø12.7 when connecting the indoor unit for PEFY-P200 or P250.
Note: When connecting the CONNECTION KIT (PAC-LV11M-J) and an M-series indoor unit,
refer to the installation manual for the CONNECTION KIT when selecting the pipe size and
piping length.
■ Additional refrigerant charge Refer to the same section in the previous page.
Model
Liquid pipe Gas pipe
P250
L
[
90 m ø9.52* ø22.2
L > 90 m ø12.7 ø22.2
P300 All ø12.7 ø22.2
Total down-stream capacity of indoor units Liquid pipe Gas pipe
– 16.0 kW
P250
L
[
90 m ø 9.52*
ø15.88
L > 90m ø 12.7
P300
All
ø 12.7
16.1 – 22.4 kW
P250
L
[
90 m ø 9.52*
ø19.05
L > 90m ø 12.7
P300
All
ø 12.7
22.5 kW –
P250
L
[
90 m ø 9.52*
ø22.2
L > 90m ø 12.7
P300
All
ø 12.7
Outdoor unit
First branching (branching joint)
Branching joint
Indoor unit
Branching header
Blind caps A
B
C
D
E
F
B
A
E
F
C
D
D D D
D
A
C
b
B
3
H
h
4
L
R
5
1
2
c d e
a
Note: Pipe re-branching after the header branching
is not possible.
(mm)