![background image](http://html2.mh-extra.com/html/daikin/skyair-rzq-p-series/skyair-rzq-p-series_service-manual_4705705177.webp)
SiUS28-902_B
Precautions for New Refrigerant (R-410A)
Appendix
169
4. Leak tester
Specifications
• Hydrogen detecting type, etc.
• Applicable refrigerants
R-410A, R-407C, R-404A, R-507A, R-134a, etc.
Differences
• Previous testers detected chlorine. Since HFCs do not contain chlorine, new tester detects
hydrogen.
5. Refrigerant oil
Specifications
• Contains synthetic oil, therefore it can be used for piping work of every refrigerant cycle.
• Offers high rust resistance and stability over long period of time.
Differences
• Can be used for R-410A and R-22 units.
6. Gauge manifold for R-410A
Specifications
• High pressure gauge
15 to 770 psi (-76 cmHg to 53 kg/cm
2
)
• Low pressure gauge
15 to 550 psi (-76 cmHg to 38 kg/cm
2
)