Field Piping and Wiring
SiE25-110
32
Field Piping and Wiring
1. Field Piping and Wiring
1.1
Precautions
Caution to be Taken When Brazing Refrigerant Piping
“Do not use flux when brazing copper-to-copper refrigerant piping. (Particularly for the HFC
refrigerant piping) Therefore, use the phosphor copper brazing filler metal (BCuP) which does
not require flux.”
(Flux has extremely harmful influence on refrigerant piping systems. For instance, if the chlorine
based flux is used, it will cause pipe corrosion or, in particular, if the flux contains fluorine, it will
damage the refrigerant oil. The use of flux is strictly forbidden since the cleaning on site is
impossible.)
(Caution) Keep in mind that if the phosphor copper brazing filler metal is used and the
brazing temperature and the heating time exceed a certain point, the phosphor
changes into the gaseous state (e.g. BCuP -1 to 5 : between 700 and 800C) which
causes pin holes and results in refrigerant leakage.
R-407C applies higher pressure than R-22 and uses
refrigeration oil different from R-22. Therefore, piping
works and tools are also different from those for R-22
refrigerants.
Use C1220 type copper tube for refrigerant piping. Wall thickness
of copper tube shown in the below table can be applied.
(The table is same as the recommendation for R-22)
Refrigeration oil
Condensing pressure
Mineral oil (Suniso)
Refrigerant
R-22
(Single-component refrigerant)
1.84MPa (18.8kg/cm
2
)
Synthetic (ether) oil
R-407C
(Multiple-component refrigerant)
2.01MPa (20.5kg/cm
2
)
Refrigerant Piping Materials
Other refrigerant piping materials
Recommendable oil for pipe processing
DAPHNE MASTER DRAW 510LS·530LS·565NR·566LS
(Idemitsu Kosan Co.,Ltd.)
MASTER DRAW 5128
(ETNA PRODUCTS INC.)
Shell Drawing XA
(SHELL)
* Mixing amount of oil is 30 mg/10m at maximum.
Copper tube O.D.
Type
O type
Copper tube W.T.
9.5
0.8
15.9
1.0
19.1
1.0
* When select and use a copper tube, observe strictly the relevant standards or regulations of each country.
(As of March 2001)
(Unit : mm)
Summary of Contents for SkyAir Super Inverter 70 D Series
Page 11: ...SiE25 110 2...
Page 15: ...Model Name and Power Supply SiE25 110 6 Model Name and Power Supply...
Page 16: ...SiE25 110 Functions 7 Part 2 Functions 1 List of Functions 8 1 1 Functions 8...
Page 31: ...Specifications SiE25 110 22 Specifications...
Page 35: ...Wired Remote Controller SiE25 110 26 Remote Controller 1 2 Installation...
Page 36: ...SiE25 110 Wired Remote Controller Remote Controller 27...
Page 39: ...Wireless Remote Controller SiE25 110 30 Remote Controller...
Page 63: ...Settings Concerning Maintenance SiE25 110 54 Field Setting FUYP...
Page 64: ...SiE25 110 Settings Concerning Maintenance Field Setting 55 FHYP...
Page 65: ...Settings Concerning Maintenance SiE25 110 56 Field Setting FAYP...
Page 67: ...Settings Concerning Maintenance SiE25 110 58 Field Setting RZP100 125DV1 E RZP100DVAL E...
Page 68: ...SiE25 110 Settings Concerning Maintenance Field Setting 59 RZP125 140DTAL...
Page 107: ...Operation Range SiE25 110 98 Function and Operation 5 Operation Range 5 1 Operation Limits...
Page 133: ...Procedure of Self Diagnosis by Remote Controller SiE25 110 124 Troubleshooting...
Page 238: ...SiE25 110 Piping Diagrams Appendix 229 1 2 Twin System RZP100D RZP125D 3D034162...
Page 241: ...Wiring Diagrams SiE25 110 232 Appendix FUYP71BV1 FUYP100BV1 FUYP125BV1 3D027747...
Page 242: ...SiE25 110 Wiring Diagrams Appendix 233 FAYP71BV1 FAYP100BV1 3D027748...
Page 243: ...Wiring Diagrams SiE25 110 234 Appendix 2 2 Outdoor Units 2 2 1 50Hz RZP71DV1 3D032604...
Page 244: ...SiE25 110 Wiring Diagrams Appendix 235 RZP100DV1 RZP125DV1 3D032603...
Page 245: ...Wiring Diagrams SiE25 110 236 Appendix 2 2 2 60Hz RZP71DVAL 3D032880B...
Page 246: ...SiE25 110 Wiring Diagrams Appendix 237 RZP100DVAL 3D032881B...
Page 247: ...Wiring Diagrams SiE25 110 238 Appendix RZP125DTAL RZP140DTAL 3D032882B...
Page 251: ...SiE25 110 iv Index...