Mitsubishi Electric PUMY-P200YKM2 Technical & Service Manual page 126

Mixed Method
Connection Examples
(Connecting to 2 Branch boxes)
Total piping length
Farthest piping length (L1)
Farthest piping length. Via Branch box (L2)
Piping length between outdoor unit and branch
Permissible
boxes
length
Farthest piping length from the first joint
(One-way)
Farthest piping length after branch box
Farthest branch box from outdoor unit
Total piping length between branch boxes and
indoor units
In indoor/outdoor section (H)*
Permissible
height
In branch box/indoor unit section (h1)
difference
In each branch unit (h2)
(One-way)
In each indoor unit (h3)
Number of bends
Branch box should be placed within the level between the outdoor unit and indoor units.
1
*
■ Selecting the Refrigerant Branch Kit
■ Select Each Section of Refrigerant
Piping
(1) Section From Outdoor
Unit to Branch box or
Branch header (A to E)
(2) Sections From Branch
box or Branch header to
Indoor Unit (a to k)
Select the size from the table to the
right.
■ Additional refrigerant charge
OCH675D
1
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 header (4 branches)
CMY-Y64-G-E
(1) Refrigerant Piping Diameter In Section From Outdoor Unit to Branch box or Branch header
(Outdoor Unit Piping Diameter)
A
Each
L1 [ 60m or L2 [ 20m
Section of
Piping
L1 > 60m or L2 > 20m
B to E
Total capacity of
indoor units
Up to 16.0kW
16.1 to 29.1kW
L : The farthest piping length from the outdoor unit to an indoor unit.
1
L : The farthest piping length for the main pipes from the outdoor unit to the branch box.
2
(2) Refrigerant Piping Diameter In Section From Branch box or Branch header to Indoor Unit
(Indoor Unit Piping Diameter)
Indoor unit series
CITY MULTI
M series or S series
P series
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.
Refer to the same section in the previous page.
A Outdoor Unit
B First joint
A
C Branch header
D Branch box
L1
E CITY MULTI Indoor unit
A A
B
F M, S, P series Indoor unit
C
E
L2
B B
C C
D
D
b b c c
d e
f g h
a
E E
F
F F F
E
F
A+B+C+D+E+a+b+c+d+e+f+g+h+i+j+k [ 150 m
A+E+a [ 80 m
A+B+C+k [ 80 m
A+B+C+D [ 55 m
B+C or E+a [ 30 m
k [ 25 m
A+B+C [ 55 m
d+e+f+g+h+i+j+k [ 95m
H [ 50 m (In case of outdoor unit is set higher than indoor unit)
H [ 40 m (In case of outdoor unit is set lower than indoor unit)
h1+h2 [ 15 m
h2 [ 15 m
h3 [ 12 m
[ 15
Branch header (8 branches)
CMY-Y68-G-E
Piping Diameter (mm)
Liquid pipe Gas pipe
ø9.52
ø19.05
ø12.7
Liquid pipe (mm)
L1 [ 60m or L2 [ 20m
ø9.52
L1 > 60m or L2 > 20m ø12.7
L1 [ 60m or L2 [ 20m
ø9.52
L1 > 60m or L2 > 20m ø12.7
kW type
A Liquid pipe
10–50 ø6.35 mm
63–140
ø9.52 mm
200 ø9.52 mm
15–42
ø6.35 mm
50 ø6.35 mm
60 ø6.35 mm
71 ø9.52 mm
35–50 ø6.35 mm
60–100 ø9.52 mm
126
D
i j k
F F
F
Gas pipe
(mm)
ø15.88
ø19.05
B Gas pipe
ø12.7 mm
ø15.88 mm
ø19.05 mm
ø9.52 mm
ø12.7 mm
ø15.88 mm
ø15.88 mm
ø12.7 mm
ø15.88 mm