Toshiba MMY-MAP0804FT8-E Installation Manual page 14

Selection of pipe size
No. Title Use part
Outdoor unit
 MAP080
Outdoor unit
(1)
Outdoor unit
connecting pipe
MAP100
connection piping
kit
MAP120
MAP140
Total capacity codes of outdoor units at
Outdoor unit
connection piping
Equivalent to
Between Outdoor
kit
unit connection
(2)

piping
Outdoor unit
45.0 to below 61.5
*6
connection piping
kit 61.5 to below 73.0
Total capacity codes of all
Equivalent to
capacity
Outdoor unit
22.4 to below 33.5
connection piping
kit of header unit
33.5 to below 38.4
(3)
Main piping

38.4 to below 45.0
First branching
section
45.0 to below 61.5
61.5 to below 73.0
73.0 to below 101.0
101.0 or more
Total capacity codes of indoor
units at the downstream side
Branching section
Equivalent to

capacity
Branching section
Branching section
Branching pipe
18 to below 34
(4)

*1, *2, *6
Flow Selector unit
34 to below 45.5
45.5 to below 56.5 16.2 to below 20.2 Ø28.6
Flow Selector unit

56.5 to below 70.5 20.2 to below 25.5 Ø34.9
Branching section
70.5 to below 98.5 25.2 to below 35.2 Ø34.9
98.5 or more
Flow Selector unit
Indoor unit
(5)

connecting pipe
Indoor unit
25-EN
Selection of pipe size
Balance pipe Suction gas Discharge
Model
side side gas side
Ø9.5 Ø22.2 Ø19.1
Ø9.5 Ø22.2 Ø19.1
Ø9.5 Ø28.6 Ø19.1
Ø9.5 Ø28.6 Ø22.2
the downstream side
Suction Discharge
gas side gas side
Equivalent to HP
capacity
16 to below 22 Ø28.6 Ø22.2
22 to below 26 Ø34.9 Ø28.6
73.0 or more 26 or more Ø34.9 Ø28.6
Suction
outdoor units
Discharge Liquid
gas
gas side side
Equivalent to
side
HP
8 to below 12 Ø22.2 Ø19.1 Ø12.7
12 to below 14 Ø28.6 Ø19.1 Ø12.7
14 to below 16 Ø28.6 Ø22.2 Ø15.9
16 to below 22 Ø28.6 Ø22.2 Ø19.1
22 to below 26 Ø34.9 Ø28.6 Ø19.1
26 to below 36 Ø34.9 Ø28.6 Ø22.2
36 or more Ø41.3 Ø34.9 Ø22.2
Suction
Discharge Liquid
gas
gas side side
Equivalent to
side
HP
Below 18 Below 6.4 Ø15.9 Ø12.7 Ø9.5
6.4 to below 12.2 Ø22.2 Ø19.1 Ø12.7
12.2 to below 16.2 Ø28.6 Ø22.2 Ø15.9
Ø22.2 Ø19.1
Ø28.6 Ø19.1
Ø28.6 Ø22.2
35.2 ore more Ø41.3 Ø34.9 Ø22.2
Capacity rank Equivalent to HP Gas side
007 to 012 0.8 to 1.25 Ø9.5
015 to 018 1.7 to 2.0 Ø12.7
024 to 056 2.5 to 6.0 Ø15.9
072 to 096 8.0 to 10.0 Ø22.2
– 13 –
No. Title
Remarks
Liquid side
Ø12.7
Indoor unit
(6)
Ø12.7 connecting pipe
Ø12.7
Ø15.9
Liquid
side
Ø15.9
Y-shaped
(7)
branching joint
Ø19.1
*3, *4
Ø19.1
Pipe size differs based
Branching header
(8)
on the total capacity
*3, *4, *5
codes of all outdoor
units (See Table 2.)
Outdoor unit
connection piping
(9)
kit
*6
Pipe size differs based
on the total capacity
code value of indoor
units at the
downstream side.
(See Table 1 and 2.)
Flow Selector unit
(10)
*7
*1: Use the same size as the main pipe if it is larger than the main pipe.
*2: Use a suction gas pipe and a liquid pipe for the two pipes branching downstream from the flow selector unit and the dedicated cooling circuit.
Liquid side
*3: Select the branch pipe of the first branch according to the outdoor capacity code.
Ø6.4
*4: Select according to the outdoor unit capacity code if the total of the indoor capacity codes exceeds the outdoor unit capacity code.
*5: It is possible to select up to a maximum capacity code total AP056 (6 hp) for the first circuit after the header branch.
Ø6.4
When using a branch header for the first branch with an outdoor unit capacity code of 33.5 (12 hp equivalent) or more and 73.0 (26 hp
equivalent) or less, use RBM-HY2043FE (4 branches) and RBM-HY-2083FE (8 branches) regardless of the total value of the capacity
Ø9.5
codes of the downstream indoor units. And, a branch header cannot be used as the first branch if the performance rank is over 73.0 (26 hp
Ø12.7
equivalent).
*6: The downstream starting point is the main pipe.
*7: Only group operation with one remote controller (or two remote controllers) is possible if one flow selector unit is connected to multiple
indoor units.
Use part Selection of pipe size
Equivalent to
Capacity rank
HP
15 m or less real length
007 to 012 0.8 to 1.25
Terminal
Exceeds 15 m real length
branching section

15 m or less real length
Indoor unit 015 to 018 1.7 to 2.0
Exceeds 15 m real length
024 to 056 2.5 to 6.0
072 to 096 8.0 to 10.0
Total capacity code of indoor units
Equivalent to capacity Equivalent to HP
Below 18.0 Below 6.4
Branching section
18.0 to below 40.0 6.4 to below 14.2
40.0 to below 70.5 14.2 to below 25.2
70.5 or more 25.2 or more
Total capacity code of indoor units
Equivalent to Equivalent to
capacity HP
Below 40.0 Below 14.2
Branching section
For 4
branches
40.0 to below 70.5 14.2 to below 25.2
Below 40.0 Below 14.2
For 8
branches
40.0 to below 70.5 14.2 to below 25.2
Total capacity codes of outdoor units at the
downstream side
Equivalent to capacity Equivalent to HP
Branching section
Below 73.0
73.0 or more
Total capacity codes of connected indoor units
Equivalent to
Equivalent to HP
capacity
Below 11.2 Below 4.0
11.2 to below 18.0 4.0 to below 6.4
18.0 to 28.0 or less 6.4 to below 10.0
Remarks
Liquid
Length of piping Gas side
side
Ø9.5 Ø6.4
Ø12.7 Ø9.5
Ø12.7 Ø6.4
Ø15.9 Ø9.5
- Ø15.9 Ø9.5
- Ø22.2 Ø12.7
Model name
For 3 piping For 2 piping
RBM-BY55FE RBM-BY55E
RBM-BY105FE RBM-BY105E
RBM-BY205FE RBM-BY205E
RBM-BY305FE RBM-BY305E
Model name
For 3 piping For 2 piping
RBM-HY1043FE RBM-HY1043E
RBM-HY2043FE RBM-HY2043E
RBM-HY1083FE RBM-HY1083E
RBM-HY2083FE RBM-HY2083E
Model name
Below 26.0 RBM-BT14FE
26.0 or more RBM-BT24FE
Max. No. of
Model name
connected indoor
unit
Below 5 RBM-Y1123FE✽
Below 8 RBM-Y1803FE✽
Below 8 RBM-Y2803FE✽
26-EN