3
Refrigerant piping design
26
3-3. Selection of refrigerant piping
3-3-1. Heat recovery
Outdoor units
Header unit
(A)
Follower unit
(B)
Follower unit
(C)
Indoor unit
Indoor unit
<Cooling only>
<Cooling only>
(1)
(1)
(1)
(2)
(4) Main pipe
Suction gas pipe
Dischage gas pipe
Liquid pipe
(2)
(3)
Indoor unit
Indoor unit
(9)
(9)
Indoor unit
Indoor unit
Indoor unit
(7)
(7)
(7)
(8)
(8)
(8)
(5)
(5)
First branch section
(5)
(5)
(6)
(5)
(6)
(7)
(7)
(6)
(6)
(5)
(5)
(5)*3
(5)*3
(5)*3
(8)
*9<Group control>
In case of two or more indoor units are
connected with FS unit
(8)
(9) Branching header
(8) Y-Shaped branching joint
(1) Outdoor unit connecting pipe
(2) Balance pipe
(3) Connecting pipe between outdoor units
(4) Outdoor unit connection piping kit
(5) Main pipe
(6) Branching pipe
(7) FS unit and indoor unit connection pipe
(8) Branching and indoor unit connection pipe
(9) Y-shaped branching joint
(10) Branching header
■
FS unit
*1: The capacity code of outdoor unit and indoor unit, please refer to 2-2.
*2: If the size of the pipe to be selected is larger than the size of the main pipe, please use the same pipe size as the main pipe.
*3: Two pipes in downstream of FS unit and cooling only indoor unit use liquid pipe and suction gas pipe.
*4: The first branching joint, select at capacity code of outdoor unit.
*5: If the total capacity code of indoor units exceed the capacity code of outdoor unit, select the size from the capacity code of the outdoor unit.
*6: For one line pipe line of header branching, total 57 capacity code of indoor units is connectable.
If connecting the branching header to the first branch section with the capacity code of outdoor unit is more than 114 (kBtu/h) and less than 247 (kBtu/h), use the
RBM-2043FUL (4 branch), and RBM-HT2083FUL (8 branch). Also, the branching header can not be used for the first branch section when the capacity code of outdoor
unit is more than 247 (kBtu/h).
*7: The main pipe is the starting point. The follower unit side is the downstream side.
*8: Selection piping is the starting point. The indoor unit side is the downstream side.
*9: Use indoor units with group control if connecting indoor units of two or more to one FS unit.
Outdoor unit capacity type
Suction
gas side
Discharge
gas side
Liquid side
072 type
Ø7/8"
Ø3/4"
Ø1/2"
096 type
Ø7/8"
Ø3/4"
Ø1/2"
120 type
Ø1-1/8"
Ø3/4"
Ø1/2"
Capacity code of outdoor unit (*1)
Balance pipe
144 to 336 type
Ø3/8"
Total capacity of outdoor
units at downstream side (*1 *7)
Suction gas
side
Discharge
gas side
Liquid side
228 or more
Ø1-3/8"
Ø1-1/8"
Ø3/4"
Total capacity of outdoor units
at downstream side (*1 *7)
Model name
Below 247
RBM-BT14FUL
247 or more
RBM-BT24FUL
Capacity code of outdoor unit
Suction
gas side
Discharge
gas side
Liquid side
072, 096
Ø7/8"
Ø3/4"
Ø1/2"
120
Ø1-1/8"
Ø3/4"
Ø1/2"
144
Ø1-1/8"
Ø7/8"
Ø5/8"
168, 192
Ø1-1/8"
Ø7/8"
Ø3/4"
216, 240
Ø1-3/8"
Ø1-1/8"
Ø3/4"
288, 312, 336
Ø1-3/8"
Ø1-1/8"
Ø7/8"
Total cpacity code of indoor units
at downstream side (*1 *2 *3 *8)
Suction
gas side
Discharge
gas side
Liquid side
Below 61
Ø5/8"
Ø1/2"
Ø3/8"
61 to below 115.5
Ø7/8"
Ø3/4"
Ø1/2"
115.5 to below 153.5
Ø1-1/8"
Ø7/8"
Ø5/8"
153.5 to below 191.5
Ø1-1/8"
Ø7/8"
Ø3/4"
191.5 to below 239
Ø1-3/8"
Ø1-1/8"
Ø3/4"
239 to below 334
Ø1-3/8"
Ø1-1/8"
Ø7/8"
334 or more
Ø1-5/8"
Ø1-3/8"
Ø7/8"
Indoor unit capacity type
Gas side
Liquid side
007 to 012 type
Ø3/8"
Ø1/4"
015 to 018 type
Ø1/2"
Ø1/4"
021 to 054 type
Ø5/8"
Ø3/8"
072 to 096 type
Ø7/8"
Ø1/2"
Indoor unit capacity type
Gas side
Liquid side
007 to 012 type
Pipe length
(Actual length)
49 ft or less
Ø3/8"
Ø1/4"
Over 49 ft
Ø1/2"
Ø3/8"
015 to 018 type
Pipe length
(Actual length)
49 ft or less
Ø1/2"
Ø1/4"
Over 49 ft
Ø5/8"
Ø3/8"
021 to 054 type
Ø5/8"
Ø3/8"
072 to 096 type
Ø7/8"
Ø1/2"
Total capacity code of indoor units
on downstream side from
Y-shaped branching joint (*4 *5)
Model name
For 3 pipe
For 2 pipe
Below 61
RBM-BY55FUL
RBM-BY55UL
61 to below 134.5
RBM-BY105FUL
RBM-BY105UL
134.5 to below 239
RBM-BY205FUL
RBM-BY205UL
239 or more
RBM-BY305FUL
RBM-BY305UL
Total capacity code of indoor units
on downstream side from
branching header(*4 *5 *6)
Model name
For 3 pipe
For 2 pipe
For 4 branching
Below 134.5
RBM-HY1043FUL
RBM-HY1043UL
134.5 or more
RBM-HY2043FUL
RBM-HY2043UL
For 8 branching
Below 134.5
RBM-HY1083FUL
RBM-HY1083UL
134.5 or more
RBM-HY2083FUL
RBM-HY2083UL
Total capacity code of outoor units
on downstream side from FS unit
Max. number of
connectable indoor units
Model name
Below 38
6
RBM-Y0383FUL
38 to below 61
8
RBM-Y0613FUL
61 to 96 or less
8
RBM-Y0963FUL
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 ...