Si39-406
Installation
General Information
23
Refrigerant Pipe
Flushing
[3 major effects]
1. Removal of oxidation bubbles formed inside copper pipes when “nitrogen replacement is
insufficient” during soldering work
2. Removal of extraneous material and moisture from pipes when covering has been insufficient
3. Checks connections in pipes linking outdoor and indoor units (Both liquid and gas pipes)
[Example of procedure]
1. Set pressure regulator on nitrogen cylinder.
∗
The gas used must be nitrogen.
(There is a danger of condensation if fleon or carbon dioxide are used and oxygen carries the
risk of explosions.)
2. Connect the charge hose from the pressure regulator to the service port on the liquid pipe side
of the outdoor unit.
3. Fit blanking plugs to all indoor units (B) other than unit A.
4. Open the main valve on the nitrogen cylinder and set the pressure regulator to 72 psi.
5. Check that the nitrogen is passing through the unit A liquid pipe.
Flushing is a method of cleaning extraneous matter out of pipes using
pressurized gas.
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Страница 114: ...Appendix Si39 406 108 General Information 3P135887 1...
Страница 124: ...Appendix Si39 406 118 General Information 7 8 Piping System Diagrams 7 8 1 Outdoor Unit REYQ96MTJU 4D045329...
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Страница 127: ...Si39 406 Appendix General Information 121 7 9 Wiring Diagrams 7 9 1 Outdoor Unit REYQ96MTJU 3D044892A...
Страница 128: ...Appendix Si39 406 122 General Information 7 9 2 Field Wiring REYQ96MTJU 3D042647A...
Страница 156: ...Refrigerant Piping Si39 406 150 Installation Manual REYQ96MTJU...
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Страница 230: ...Precautions for New Refrigerant R410A Si39 406 224 Precautions for New Refrigerant R410...
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