3
Refrigerant piping design
27
3-3-2. Heat pump
*1: When using a Y-shaped branching joint for the 1st branch, select according to capacity code of the outdoor unit.
*2: Up to a total of 54 (kBtu/h) maximum capacity code is connectable to one line after branching of header.
When using a branching header for the 1st branch and the total capacity codes of all outdoor units are 114 or more, use a RBM-HY2043UL or RBM-HY2083UL regardless of
the total capacity codes of indoor units at downstream side.
*3: Pipe size differs based on the total capacity code value of indoor units at the downstream side.
If the total value exceeds the capacity code of the outdoor unit, apply the capacity code of the outdoor unit.
(7) Branching header
(4) Branching pipe
(5) Indoor unit connecting pipe
First branch section
Indoor unit
Header unit
Follower unit
Outdoor unit
(1)
(1)
(8) Outdoor unit connection piping kit.
(2)
Ø3/8
(4)
(3) Main piping
(6)
(5)
(5)
(5)
(5)
(4)
(4)
(4)
(4)
(5)
(5)
(5)
(5)
(5)
(6) Y-shaped branching joint
(6)
(6)
(6)
(6)
(1) Outdoor unit connecting pipe
Outdoor unit capacity type
Outdoor unit capacity type
Liquid side
2"
/
1
Ø
2"
/
1
Ø
2"
/
1
Ø
Gas side
8"
/
7
Ø
8"
/
7
Ø
8"
/
1
-
1
Ø
e
p
y
t
2
7
0
e
p
y
t
6
9
0
e
p
y
t
4
1
1
(2) Balance pipe
Outdoor unit capacity type
Balance pipe
8"
/
3
Ø
144 to 228 type
(3) Main piping
Liquid side
2"
/
1
Ø
2"
/
1
Ø
8"
/
5
Ø
4"
/
3
Ø
Gas side
8"
/
7
Ø
8"
/
1
-
1
Ø
8"
/
1
-
1
Ø
8"
/
3
-
1
Ø
e
p
y
t
6
9
0
/
2
7
0
e
p
y
t
4
1
1
e
p
y
t
2
9
1
8 /
6
1
/
4
4
1
e
p
y
t
8
2
2
Model name
Outdoor unit
2
RBM-BT14UL
(8) Outdoor unit connection piping kit
(4) Branching pipe
Total capacity codes of indoor
units at downstream side (kBtu/h)(*3)
Gas side
2"
/
1
Ø
8"
/
5
Ø
8"
/
7
Ø
8"
/
1
-
1
Ø
8"
/
3
-
1
Ø
3
2
w
o
l
e
B
1
6
w
o
l
e
b
o
t
3
2
6
1
1
w
o
l
e
b
o
t
1
6
3
9
1
w
o
l
e
b
o
t
6
1
1
e
r
o
m
r
o
3
9
1
Liquid side
8"
/
3
Ø
8"
/
3
Ø
2"
/
1
Ø
8"
/
5
Ø
4"
/
3
Ø
(6) Y-shaped branching joint (*1)
Total capacity codes of indoor units (kBtu/h)
Total capacity codes of indoor units (kBtu/h)
Model name
L
U
5
5
Y
B
-
M
B
R
L
U
5
0
1
Y
B
-
M
B
R
L
U
5
0
2
Y
B
-
M
B
R
1
6
w
o
l
e
B
6
3
1
w
o
l
e
b
o
t
1
6
e
r
o
m
r
o
6
3
1
(7) Branching header (*2)
Below 136
136 to below 241
For 4 branches
For 8 branches
Below 136
136 to below 241
Model name
RBM-HY1043UL
RBM-HY2043UL
RBM-HY1083UL
RBM-HY2083UL
(5) Indoor unit connection pipe
Indoor unit capacity type
007 to 012 type
Pipe length
(actual length)
49 ft or less
Over 49 ft
e
p
y
t
8
1
0
o
t
5
1
0
e
p
y
t
4
5
0
o
t
1
2
0
e
p
y
t
6
9
0
o
t
2
7
0
Liquid side
4"
/
1
Ø
8"
/
3
Ø
2"
/
1
Ø
4"
/
1
Ø
4"
/
1
Ø
Gas side
2"
/
1
8"
/
5
Ø
8"
/
7
Ø
Ø
2"
/
1
Ø
8"
/
3
Ø
Summary of Contents for Carrier MMC-AP0181H2UL
Page 61: ...5 Outdoor unit 60 Model MMY MAP0964HT9UL MAP0964HT6UL MMY MAP1144HT9UL MAP1144HT6UL 72 9 ...
Page 76: ...5 Outdoor unit 75 Model MMY MAP0724FT6UL 460 V 60 Hz WHI WHI WHI PUR ...
Page 77: ...5 Outdoor unit 76 Model MMY MAP0964FT9UL MAP1204FT9UL 208 230 V 60 Hz ...
Page 78: ...5 Outdoor unit 77 Model MMY MAP0964FT6UL MAP1204FT6UL 460 V 60 Hz WHI WHI WHI PUR ...
Page 79: ...5 Outdoor unit 78 5 6 2 Heat pump Model MMY MAP0724HT9UL ...
Page 80: ...5 Outdoor unit 79 Model MMY MAP0724HT6UL ...
Page 81: ...5 Outdoor unit 80 Model MMY MAP0964HT9UL MAP1144HT9UL ...
Page 82: ...5 Outdoor unit 81 Model MMY MAP0964HT6UL MAP1144HT6UL ...
Page 212: ...MEMO ...
Page 213: ...Engineering Data Book For North America August 2015 First Edition ...
