Mitsubishi Electric PURY-P200 Service Handbook page 12

<Indication of the radial thickness and refrigerant type on the piping materials>
"Radial thickness" and "Refrigerant Types" are indicated on the insulation material on the piping materials for the
new refrigerant.
Indication of the radial thickness (mm)
Radial thickness Symbols
0.8
1.0
<Example of the symbols indicated on the insulation material>
~08-2~
Appears every 1 m
The type of piping materials can also be found on the package.
<Example of a label found on the package>
2
Refrigerant Type
Bore diameter and radial thickness of the copper piping : 9.52✕0.8, 15.88✕1.0
<Flare Machining (type-O and OL only)>
The flare machining dimensions for units that use R410A is larger than those for units that use R22 in order to
increase air tightness.
If a clutch type flare tool is used to machine flares on units that use R410A, make the protruding part of the
pipe between 1.0 and 1.5mm. Copper pipe gauge for adjusting the length of pipe protrusion is useful.
<Flare Nut>
Type-2 flare nuts instead of type-1 s are used to increase the strength. The size of some of the flare nuts have
also been changed.
Dimension B
✻ The table shows the standards in Japan. Using this table as a reference, choose pipes that meet the local
standards.
Indication of the refrigerant type
Refrigerant type
08 Type1 R22, R407C
10 Type2 R410A
Flare Machining Dimension(mm)
External dimension
of pipes
ø 6.35
ø 9.52
ø 12.7
ø 15.88
ø 19.05
Flare nut dimension(mm)
External dimension
of pipes
ø 6.35
ø 9.52
ø 12.7
ø 15.88
ø 19.05
Symbol
1
2
: common to type 1 and type 2
: R22,R407C,R410A
Size
R410A
1/4" 9.1
3/8" 13.2
1/2" 16.6
5/8" 19.7
3/4" 24.0
Size
R410A(Type2)
1/4" 17.0
3/8" 22.0
1/2" 26.0
5/8" 29.0
3/4" 36.0
- 9 -
Dimension A
R22
9.0
13.0
16.2
19.4
23.3
Dimension B
R22(Type1)
17.0
22.0
24.0
27.0
36.0