Refrigerant Piping
Si39-406
156
Installation Manual REYQ96MTJU
6.5
Pipe Insulation
After finishing the leak test and vacuum drying, the piping must be insulated. Take into account the
following points:
Make sure to insulate the connection piping and refrigerant branch kits entirely.
Be sure to insulate the liquid-side, suction gas-side and discharge gas-side piping for the inter-
unit piping and the refrigerant branch kits.
Not insulating them may cause leaking. (The gas piping can reach temperatures of 250°F. Be
sure the insulation used can withstand such temperatures.)
If you think the humidity around the cooling piping might exceed 86°F and RH80%, reinforce the
insulation on the cooling piping (at least 13/16" thick). Condensation might form on the surface
of the insulation.
If there is a possibility that condensation on the shut-off valve might drip down into the indoor
unit through gaps in the insulation and piping because the outdoor unit is located higher than
the indoor unit, etc., this must be prevented by caulking the connections, etc.
CAUTION
Be sure to insulate local pipes, as touching them can cause burns.
6.6
Additional Refrigerant Charge
CAUTION
Refrigerant cannot be charged until field wiring has been completed.
Refrigerant may only be charged after performing the leak test and the vacuum drying (see above).
When charging a system, care shall be taken that its maximum permissible charge is never
exceeded, in view of the danger of liquid hammer.
Charging with an unsuitable substance may cause explosions and accidents, so always ensure that
the appropriate refrigerant (R410A) is charged.
Refrigerant containers shall be opened slowly.
Always use protective gloves and protect your eyes when charging refrigerant.
TO AVOID COMPRESSOR BREAKDOWN. DO NOT CHARGE THE REFRIGERANT MORE
THAN THE SPECIFED AMOUNT TO RAISE THE CONDENSING PRESSURE.
This outdoor unit is factory charged with refrigerant and depending on pipe sizes and pipe
lengths some systems require additional charging of refrigerant.
Charge the refrigerant to the liquid pipe in its liquid state. Since R410A is a mixed refrigerant, its
composition changes if charged in a state of gas and normal system operation would no longer
be assured.
Before filling, check whether the tank has a siphon attached or not.
5
3
4
6
1
2
1. Liquid line shutoff valve
2. Suction gas line shutoff valve
3. Discharge gas line shutoff valve
4. Outer-to-inner interconnecting piping
5. Caulking treatment, etc.
6. Heat insulator
Содержание REYQ96MTJU
Страница 1: ...Design Installation Testing Instruction R410A Heat Recovery 60Hz REYQ96MTJU Si39 406...
Страница 6: ...Si39 406 iv Table of Contents...
Страница 34: ...Installation Si39 406 28 General Information Flaring Procedure...
Страница 68: ...Installation Si39 406 62 General Information Caution Caution label 3P124617 4P124614...
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...
Страница 126: ...Appendix Si39 406 120 General Information 7 8 3 BS Unit BSVQ36MVJ BSVQ60MVJ 4D045338...
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...
Страница 158: ...Refrigerant Piping Si39 406 152 Installation Manual REYQ96MTJU...
Страница 230: ...Precautions for New Refrigerant R410A Si39 406 224 Precautions for New Refrigerant R410...
Страница 236: ...375 Park Avenue Suite 3308 New York N Y 10152 info daikinac com www daikinac com...