Precautions for New Refrigerant (R-410A)
ESIE09-08A
280
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.
1. Non-azeotropic mixture refrigerant: mixture of two or more refrigerants having different boiling
points.
2. Quasi-azeotropic mixture refrigerant: mixture of two or more refrigerants having similar boiling
points.
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
Pressure-Enthalpy curves of HFC-32/125 (50/50wt%)
Summary of Contents for ALTHERMA HT ERSQ 011 AA
Page 2: ......
Page 7: ...ESIE09 08A Table of Contents v 1 3 Service Tools 283 Index i Drawings Flow Charts iii...
Page 16: ...Model Names of Indoor Outdoor Units Tanks ESIE09 08A 4 General Information...
Page 28: ...Refrigerant Circuit ESIE09 08A 16 Refrigerant Circuit EKHBRD 011 014 016 AB AC V1 Y1...
Page 40: ...Functional Parts Layout ESIE09 08A 28 Refrigerant Circuit...
Page 63: ...ESIE09 08A PCB Layout for EKHBRD 011 014 016 AA AB AC V1 Y1 Refrigerant Circuit 51...
Page 64: ...PCB Layout for EKHBRD 011 014 016 AA AB AC V1 Y1 ESIE09 08A 52 Refrigerant Circuit...
Page 125: ...ESIE09 08A Field Setting Test Operation 113...
Page 232: ...Troubleshooting by Indication on the Remote Controller ESIE09 08A 222 Troubleshooting...
Page 237: ...ESIE09 08A Piping Diagrams Appendix 227 EKHBRD 011 014 016 AB AC V1 Y1...
Page 250: ...Wiring Diagrams ESIE09 08A 240 Appendix EKHBRD 011 014 016 AB AC V1...
Page 251: ...ESIE09 08A Wiring Diagrams Appendix 241...
Page 256: ...Wiring Diagrams ESIE09 08A 246 Appendix EKHBRD 011 014 016 AB AC Y1...
Page 257: ...ESIE09 08A Wiring Diagrams Appendix 247...
Page 260: ...Wiring Diagrams ESIE09 08A 250 Appendix...