Toshiba MMY-MUP0801HT8P-E Installationsanleitung Seite 67

No. Piping parts Name
Pipe size between branching sections
Equivalent to
capacity (HP)
2.4 to below 6.4
Branching
6.4 to below 12.2
section
12.2 to below 20.2
(4) Branching pipe
Branching 20.2 to below 22.4
section
22.4 to below 25.2
25.2 to below 35.2
35.2 to below 61.2
61.2 to below 75.2
75.2 or more
*1 If the liquid side piping size of main piping is increased
to Dia. 25.4 ( one size up), the liquid side piping size
also has to change to Dia. 25.4.
Connecting pipe size of indoor unit
003 to 012 type
Branching
Indoor unit
section
(5)
connecting
014 to 018 type
pipe
Indoor unit
020 to 056 type
072 to 096 type
112 type
128 type
Selection of branching section (Y-shaped branching joint)
Branching Y-shaped
(6)
section branching joint
Y-shape
branching joint
131-EN
IM_1141001201-2_Book.indd 66 IM_1141001201-2_Book.indd 66
Selection of pipe size Remarks
Total capacity codes of indoor units at
downstream side
Gas side Liquid side
Pipe size differs
based on the total
Below 2.4 12.7 9.5
capacity code value
15.9 9.5
of indoor units at the
22.2 12.7
downstream side.
If the total capacity
28.6 15.9
code value of indoor
28.6 19.1
units exceeds that
34.9 19.1
of the outdoor units,
apply the capacity
34.9 19.1
code of the outdoor
41.3 22.2
units.
54.0 22.2
54.0 22.2 *1
Capacity rank Gas side
15 m or less real length 9.5
Real length exceeds 15 m 12.7
12.7
15.9
22.2
28.6
28.6
Total capacity code of
indoor
Model name
Equivalent to capacity
(HP)
Below 6.4 RBM-BY55E
6.4 to below 14.2 RBM-BY105E
14.2 to below 25.2 RBM-BY205E
25.2 to below 61.2 RBM-BY305E
61.2 or more RBM-BY405E
No. Piping parts Name
Branching Branching
(7)
section header
Outdoor unit
connection
Branching
(8) piping kit
section
(For linking of
outdoor units)
Liquid
side
6.4
6.4
6.4
9.5
12.7
12.7
15.9
– 66 –
Selection of pipe size
Selection of branching section (Branching header)
Total capacity code of indoor units
Equivalent to capacity (HP)
Below 14.2
For 4 branches
14.2 to below 25.2
*2
Branching header
Below 14.2
For 8 branches
14.2 to below 25.2
*2: Up to a total of 6.0 maximum equivalent to HP capacity codes is connectable to one
line after branching of header. When the total capacity codes of all outdoor units are 12
to below 26 (equivalent to HP) and you use a branching header for the first branching
section, use a RBM-HY2043E or RBM-HY2083E regardless of the total capacity codes
of outdoor units at downstream side. In addition, you cannot use a branching header for
the first branching section when the total capacity codes of all outdoor units are over 26
(equivalent to HP).
Outdoor unit connection piping kit (For linking of outdoor units)
Total capacity code of
outdoor units *3
Equivalent to capacity
(HP)
Outdoor unit
connection piping kit
Below 26
(For linking of outdoor
26 to below 62
units)
62 or more
*3: Upstream side when regarding the main piping as the start point
Remarks
Model name
RBM-HY1043E
RBM-HY2043E
RBM-HY1083E
RBM-HY2083E
Model name
RBM-BT14E
RBM-BT24E
RBM-BT34E
EN
132-EN
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