Si39-406
Installation
General Information
31
3.2.4
Thermal Insulation Work
(Refrigerant Piping)
Operational steps
Materials
The thermal insulation materials which are used must be well able to withstand the heat from the
pipes.
Example:
Heat pump type: Heat resistant polyethylene foam (heat resistance of at least 120°C)
Cooling only: Polyethylene foam (heat resistance of 100°C or more)
Essential Points
of Thermal
Insulation
The insulation of jointed areas such as the soldered, flared or flanged sections should only be
carried out after the successful completion of the air tight test.
Attention should be paid to the unit model and its operating conditions since there are occasions
when the gas and liquid pipes also need to be thermally insulated.
Important points
1. The thickness of the thermal insulation material must be determined in the light of the pipe
sizes.
2. It will be necessary to increase the values in the above table for top floors or where conditions
are hot and humid. (Refer to Installation manual "6-5 Pipe insulation" for more detail)
3. Where a customer supplies his own specifications then these must be adhered to.
4. Where it is anticipated that the air conditioning unit will be operated at external air temperatures
of 10°C or less then thermal insulation will also be required for the liquid pipes.
Refrigerant pipe
work
Insulation
(jointed areas)
Insulation (with
the exception of
the jointed
areas)
Air tight test
(V0985)
Pipe size in. (mm)
Thickness of insulation material
φ
1/4~
φ
1 (6.4mm~25.4mm)
φ
1/2 or more (12.5mm or more)
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...