Toshiba SMMS-e Quick Reference page 8

Refrigerant piping (Continued)
Refrigerant Piping
8
23
<Cooling, Heat pump type >
N . o P p i n i g p r a s t
Outdoor unit
↓
(1)
Outdoor unit
connection piping
kit
Between Outdoor
(2)
unit connection
piping kits
No. Piping parts
Outdoor unit
↓
(1)
Outdoor unit
connection piping
kit
Between Outdoor
(2)
unit connection
piping kits
Outdoor unit
connection piping
kit of header unit
(3)
↓
First branching
section
N a m e
Connecting pipe size of outdoor unit
Type
MMY-MAP0806*
MMY-MAP1006*
Outdoor unit
MMY-MAP1206*
connecting pipe
MMY-MAP1406*
MMY-MAP1606*
MMY-MAP1806*
MMY-MAP2006*
MMY-MAP2206*
Piping size for connecting piping between outdoor units
Total capacity codes of the total
outdoor units at the downstream
Equivalent
Main connecting
to HP
piping between
16 to below 22
outdoor units
22 to below 24
24 to below 26
26 to below 36
36 or more
Name
Connecting pipe size of outdoor unit
Type
MMY-MAP0806*
Outdoor unit
MMY-MAP1006*
connecting pipe
MMY-MAP1206*
MMY-MAP1406*
MMY-MAP1606*
MMY-MAP1806*
Piping size for connecting piping between outdoor units
Total capacity codes of
the total outdoor units at
Main connecting
the downstream side
piping between
outdoor units
Equivalent to HP
24 to below 32
Size of main piping
Equivalent to HP
8 to below 10
10 to below 12
Main piping
12 to below 14
14 to below 22
22 to below 24
24 to below 26
26 to below 36
36 or more
<Cooling,Heat pump type>
S e e l t c o i n f o p p i e
Gas side
Ø19.1
Ø22.2
Ø28.6
Ø28.6
Ø28.6
Ø28.6
Ø28.6
Ø28.6
side
Equivalent
to capacity
45.0 to below 61.5 Ø28.6 Ø15.9
61.5 to below 67.0 Ø28.6 Ø19.1
67.0 to below 73.0 Ø34.9 Ø19.1
73.0 to below 100.0 Ø34.9 Ø19.1
100.0 or more Ø41.3 Ø22.2
Selection of pipe size
Gas side
Ø19.1
Ø22.2
Ø28.6
Ø28.6
Ø28.6
Ø28.6
Gas sid e
Equivalent to
capacity
68.0 to below 91.0
Total capacity codes of
all outdoor units
Equivalent to
capacity
22.4 to below 28.0
28.0 to below 33.5
33.5 to below 38.4
38.4 to below 61.5
61.5 to below 67.0
67.0 to below 73.0
73.0 to below 100.0
100.0 or more
s z i e
Liquid side
Same as connecting
Ø12.7
pipe size of the
Ø12.7
o utdoor unit.
Ø12.7
(
MMY-MAP14B6* use table
Ø15.9
MMY-MAP1206*)
Ø15.9
(
MMY-MAP18B6* use table
Ø15.9
MMY-MAP1606*)
Ø15.9
Ø19.1
Gas Liquid Balance
side side pipe
Pipe size differs
based on the total
capacity code value
of outdoor unit at the
downstream side.
Ø9.5
Liquid side
Ø12.7
Ø12.7 Same as connecting pipe
size of the outdoor unit.
Ø12.7
Ø15.9
Ø15.9
Ø15.9
For HT7P-K
model only
Pipe size differ based
on the total capacity
Liquid side
code value of outdoor
unit at the downstream
side.
Ø34.9 Ø19.1
Liquid
Gas side
side
Ø19.1 Ø12.7
Pipe size differs
based on all capacity
Ø22.2 Ø12.7
code value of
Ø28.6 Ø12.7
outdoor unit.
Ø28.6 Ø15.9
Ø28.6 Ø19.1
Ø34.9 Ø19.1
Ø34.9 Ø19.1
Ø41.3 Ø22.2
R e m a k r s
Remarks
For HT7P-K
model only