( 2 ) C autions for refrigerant p ip ing work
1
2
3
1/ 4
3/ 8
1/ 2
5/ 8
3/ 4
6.35
9 .52
12.7 0
15.88
19 .05
0.8
0.8
0.8
1.0
—
0.8
0.8
0.8
1.0
1.0
Nominal
dimensions(inch)
Diagram below: Piping diameter and thickness
Outside
diameter (mm)
Thickness (mm)
R410A
R22
1/ 4
3/ 8
1/ 2
5/ 8
3/ 4
6.35
9 .52
12.7 0
15.88
19 .05
9 .1
13.2
16.6
19 .7
—
9 .0
13.0
16.2
19 .4
23.3
Nominal
dimensions(in)
Flare cutting dimensions
Outside
diameter (mm)
Dimension A ( )
+ 0
-0.4
R410A
R22
1/ 4
3/ 8
1/ 2
5/ 8
3/ 4
6.35
9 .52
12.7 0
15.88
19 .05
17 .0
22.0
26.0
29 .0
-
17 .0
22.0
24.0
27 .0
36.0
Nominal
dimensions(in)
Flare nut dimensions
Outside
diameter (mm)
Dimension B (mm)
R410A
*
* 36.0mm for
indoor unit
of RP100,
125 and 140
R22
(mm)
Gauge manifold
Charge hose
Gas leak detector
Refrigerant recovery eq uipment
Refrigerant cylinder
Applied oil
Safety charger
Charge valve
V acuum pump
Flare tool
B ender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale
V acuum gauge or thermis-
tor vacuum gauge and
vacuum valve
Charging cylinder
Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Apply to flared section
Prevent compressor malfunction
when charging refrigerant by
spraying liq uid refrigerant
Prevent gas from blowing out
when detaching charge hose
V acuum drying and air
purge
Flaring work of piping
B end the pipes
Cut the pipes
Weld the pipes
Charge refrigerant
Check the degree of vacuum. (V acuum
valve prevents back flow of oil and refri-
gerant to thermistor vacuum gauge)
Refrigerant charge
Tool ex clusive for R410A
Tool ex clusive for R410A
Tool for HFC refrigerant
Tool ex clusive for R410A
Tool ex clusive for R410A
Ester oil, ether oil and alky-
lbenzene oil (minimum amount)
Tool ex clusive for R410A
Tool ex clusive for R410A
Tools for other refrigerants can
be used if eq uipped with adap-
ter for reverse flow check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used
Tool ex clusive for R410A
Tools and materials
Use
R410A tools
Can R22 tools be used?
(Usable if eq uipped
with adapter for rever-
se flow)
(Usable by adjusting
flaring dimension)
Can R407 C tools be used?
Ester oil, ether oil:
Alkylbenzene oil: minimum amount
(Usable if eq uipped
with adapter for rever-
se flow)
(Usable by adjusting
flaring dimension)
: Prepare a new tool. (Use the new tool as the tool ex clusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
OCH526C
Содержание PUHZ-HW112YHA-BS
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