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Installation
Si39-406
20
General Information
3.2.3
Refrigerant Pipe Work
Operational steps
The 3 Principles
of Refrigerant
Piping
The “3 principles of refrigerant piping” must be strictly observed
Fit pipes
provisionally
Install indoor unit
Solder
Flushing
Air tight test
Vacuum drying
Cut pipes to size
Replace nitrogen
(V0963)
The 3 principles of refrigerant piping
Dry
Clean
Air tight
Make sure there is no moisture inside
the pipes
Make sure there is no dirt inside the
pipe
Make sure the refrigerant does not
leak out
Actoin to avoid problem
Cause of problem
l
Rainwater, work water,
etc. gets into pipes from
outside
l
Moisture generated inside
pipes due to condensation
l
Formation of oxides inside
pipes during soldering
l
Dirt, dust or other
extraneous material gets
into pipes from outside
l
Leak from soldered area
l
Leak from flared area
l
Leak from flange area
Pipe covering
Flushing
Replace nitrogen
Pipe covering
Air tight test
Flushing
Vacuum drying
Use the proper materials (copper pipe,
solder, etc.)
Adhere strictly to standard soldering
work practice
Adhere strictly to standard flaring work
practice
Adhere strictly to standard flange
connection work parctice
Clean
Dry
Air tight
(V0964)
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...