Rothenberger Refrigeration and Air Conditioning Catalogue Page 100
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GOOD TO KNOW Refrigerant data from CFC-alternative refrigerants Refrigerant Composition ODP GWP R22 (HFCKW refrigerant) CHCLF₂ 0.05 1,810 R32 (HFKW-chlorine-free refrigerant) CH2F2 R134a (HFKW-chlorine-free refrigerant) R404A (HFKW-chlorine-free blends) R507 (HFKW-chlorine-free blends) R407C (HFKW-chlorine-free blends) R410A (HFKW-chlorine-free blends) CF₃CH2F 0 1,430 0 3,922 0 52 % R143a, 44 % R125, 4 % R134a 675 50 % R143a, 50 % R125 0 3,985 50 % R32, 50 % R125 0 2,088 23 % R32, 25 % R125, 52 % R134a 0 Temperature glide 7.5 K 1,774 0.2 K ODP = Ozone Depletion Potential (degree in which the ozone layer is destroyed) GWP = Global Warming Potential (degree in which it contributes to the greenhouse effect) Instructions for safe and proper use of the refrigerants Refrigerant • Wear protective gloves and safety goggles • Do not let refrigerant come in contact with skin • Do not inhale high concentrations of vapours (Lack of oxygen causes a narcotic effect and is a danger to life) • Do not smoke around refrigerant • Working place / room must be thoroughly aired, if necessary extracted Refrigerant bottles • Secure against accidents, do not throw • Do not expose to direct sunlight and do not place near radiators or other heat sources • Do not use open flame • Do not disassemble or remove valves • Damaged bottles need to be properly returned • Close empty containers Air-conditioners • Air-conditioner leaks need to be repaired immediately • Do not allow refrigerant to leak while filling or doing maintenance work • In high concentrations (for example pipe burst), leave the room and do not enter again until it has been properly ventilated • Only do brazing work together with protective nitrogen gas and only in well ventilated areas Flare connections Normal flare size in accordance with JIS B8607:2008 Flare outer diameter in relationship to the pipe diameter Pipe outer diameter mm / inch Metric 6 mm 1 mm 10 mm 1 mm 16 mm 1 mm 8 mm 1 mm 12 mm 18 mm 1/4″ 6.35 mm 3/8″ 9.52 mm 5/16″ 1/2″ 11 5/8″ 3/4″ 100 Wall thickness mm / inch 7.94 mm Flare outer diameter with R22-, R134a-, R404-, R407C air-conditioners 8.5 mm 11.1 mm 13.6 mm 9.1 mm 11.1 mm 13.2 mm 1 mm 15.3 mm 16.5 mm 1 mm 22.0 mm 22.7 mm 0.35″ 0.35″ 0.35″ 19.5 mm 9.0 mm 11.0 mm 13.0 mm 12.70 mm 0.35″ 16.2 mm 19.05 mm 0.35″ 23.3 mm 15.88 mm Flare outer diameter with R410A air-conditioners 0.35″ 19.4 mm 19.2 mm 9.1 mm 11.1 mm 13.2 mm 16.6 mm 19.7 mm 24.0 mm
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