Precautions for New Refrigerant (R-410A)
SiENBE34-703
232
Precautions for New Refrigerant (R-410A)
1. Precautions for New Refrigerant (R-410A)
1.1 Outline
1.1.1 About Refrigerant R-410A
!
Characteristics of new refrigerant, R-410A
1. Performance
Almost the same performance as R-22 and R-407C
2. Pressure
Working pressure is approx. 1.4 times more than R-22 and R-407C.
3. Refrigerant composition
Few problems in composition control, since it is a Quasi-azeotropic mixture refrigerant.
H
1. Non-azeotropic mixture refrigerant: mixture of two or more refrigerants having different
boiling points.
H
2. Quasi-azeotropic mixture refrigerant: mixture of two or more refrigerants having similar
boiling points.
H
3. The design pressure is different at each product. Please refer to the installation manual for
each product.
(Reference) 1 MPa
10.19716 kgf / cm
2
HFC units (Units using new refrigerants)
HCFC units
Refrigerant name
R-407C
R-410A
R-22
Composing
substances
Non-azeotropic mixture
of HFC32, HFC125 and
HFC134a (*1)
Quasi-azeotropic mixture
of HFC32 and JFC125
(*1)
Single-component
refrigerant
Design pressure
3.2 MPa (gauge pressure)
= 32.6 kgf/cm
2
4.0 MPa
(gauge
pressure)
= 40.8 kgf/cm
2
2.75MPa
(gauge pressure)
= 28.0 kgf/cm
2
Refrigerant oil
Synthetic oil (Ether)
Mineral oil (Suniso)
Ozone destruction
factor (ODP)
0
0
0.05
Combustibility
None
None
None
Toxicity
None
None
None
Pre
ssu
re-Enth
a
lpy c
u
rve
s
of HFC-
3
2/125 (50/50wt
%
)
Summary of Contents for VRVIII-S
Page 1: ...SiENBE34 703 Basic Training Manual R 410A Heat Pump 50Hz Service Manual...
Page 11: ...Introduction SiENBE34 703 x...
Page 113: ...Field Setting SiENBE34 703 102 Test Operation...
Page 207: ...Troubleshooting by Indication on the Unified ON OFF Control SiENBE34 703 196 Troubleshooting...
Page 215: ...Wiring Diagrams SiENBE34 703 204 Appendix 2 3 Indoor Unit FXCQ20 25 32 63M8...
Page 216: ...SiENBE34 703 Wiring Diagrams Appendix 205 FXCQ40 50 80 125M8V3...
Page 217: ...Wiring Diagrams SiENBE34 703 206 Appendix FXFQ25 32 40 50 63 80 100 125P7VE...
Page 218: ...SiENBE34 703 Wiring Diagrams Appendix 207 FXZQ20 25 32 40 50M8V1...
Page 221: ...Wiring Diagrams SiENBE34 703 210 Appendix FXDQ20 25M8V3...
Page 222: ...SiENBE34 703 Wiring Diagrams Appendix 211 FXSQ20 25 32 40 50 63 80 100 125M8V3...
Page 232: ...SiENBE34 703 Option List Appendix 221...
Page 235: ...Example of Connection SiENBE34 703 224 Appendix...
Page 241: ...Method of Replacing the Inverter s Power Transistors Modules SiBE34 703 230 Appendix...
Page 261: ...RXYSQ4 5 6 P7Y1B SiENBE34 703 250 Removal Procedure...