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SiUS28-902
Precautions for New Refrigerant (R-410A)
Precautions for New Refrigerant (R-410A)
174
2. Torque wrench
Specifications
•
Dimension B
Unit:mm
No change in tightening torque
No change in pipes of other sizes
Differences
•
Change of dimension B
Only 1/2", 5/8" are extended
3. Vacuum pump with check valve
Specifications
•
Discharge speed
Maximum degree of vacuum
50 l/min (50Hz)
Select a vacuum pump which is able to keep
60 l/min (60Hz)
the vacuum degree of the system in excess of
•
Suction port UNF7/16-20(1/4 Flare)
–14.6 psi (5 torr or 5000 micron or – 755 mmHg).
UNF1/2-20(5/16 Flare) with adapter
Differences
•
Equipped with function to prevent reverse oil flow
•
Previous vacuum pump can be used by installing adapter.
Nominal size
Class-1
Class-2
Previous
1/2
24
26
24
5/8
27
29
27
Dimension B
For class-1: R-407C
For class-2: R-410A
Vacuum pump adapter
Reverse flow preventive
vacuum adapter
Summary of Contents for SkyAir FCQ18PVJU
Page 1: ...Split System Air Conditioners SkyAir Inverter R 410A Heat Pump 60Hz P Series SiUS28 902_a...
Page 44: ...Other Control SiUS28 902_a 37 Function...
Page 81: ...SiUS28 902_a Troubleshooting by Remote Controller Troubleshooting 74...
Page 185: ...SiUS28 902 Precautions for New Refrigerant R 410A Precautions for New Refrigerant R 410A 178...