Installation
Si39-406
38
General Information
Vacuum Drying
Procedure
There are two vacuum drying methods and the appropriate one should always be chosen to
conform with individual local conditions.
[Normal vacuum drying]........The standard method
[Operational steps]
1. Vacuum drying (1st time): Connect a manifold gauge to the service port of the liquid or gas pipe
and operate the vacuum pump for at least 2 hours.
(The degree of vacuum produced should be in excess of –14.61psi (5 mmHg))
If after 2 hours the vacuum produced has not exceeded 5 mmHg then either there is moisture in
the pipe or there is a leak. Operate the vacuum pump for a further hour.
If, even after 3 hours, the vacuum has not reached –14.61 (5 mmHg) then check the system for
a leak.
2. Carry out maintained vacuum test.
Produce a vacuum in excess of –14.61psi (–755 mmHg) and do not release it for an hour or
more. Check the vacuum gauge to make sure that it has not risen. (If the gauge does rise then
there is still moisture in the pipe or there is a leak somewhere.)
3. Additional charge of refrigerant.
Connect the charging cylinder to the liquid pipe service port and charge with the required
amount of refrigerant.
4. Open stop valve to the full.
Open the stop valves on the liquid and the gas pipes to the full.
Note:
Vacuums should be produced in both the liquid and the gas pipes.
(Because there are a large number of functional components in the indoor unit which cut off the
vacuum mid–way through)
7.25psi
0psi
–14.7psi
–14.6psi
(–755mmHg)
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...
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