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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.
Summary of Contents for REYQ96MTJU
Page 1: ...Design Installation Testing Instruction R410A Heat Recovery 60Hz REYQ96MTJU Si39 406...
Page 6: ...Si39 406 iv Table of Contents...
Page 34: ...Installation Si39 406 28 General Information Flaring Procedure...
Page 68: ...Installation Si39 406 62 General Information Caution Caution label 3P124617 4P124614...
Page 114: ...Appendix Si39 406 108 General Information 3P135887 1...
Page 126: ...Appendix Si39 406 120 General Information 7 8 3 BS Unit BSVQ36MVJ BSVQ60MVJ 4D045338...
Page 128: ...Appendix Si39 406 122 General Information 7 9 2 Field Wiring REYQ96MTJU 3D042647A...
Page 156: ...Refrigerant Piping Si39 406 150 Installation Manual REYQ96MTJU...
Page 158: ...Refrigerant Piping Si39 406 152 Installation Manual REYQ96MTJU...
Page 230: ...Precautions for New Refrigerant R410A Si39 406 224 Precautions for New Refrigerant R410...
Page 236: ...375 Park Avenue Suite 3308 New York N Y 10152 info daikinac com www daikinac com...