Si39-406
Installation
General Information
33
24 hours later: 543psi 68°F
The pressure drop in such a case is deemed to be zero (successful test).
Checking for
Leaks
[Check 1] (Where pressure falls while carrying out Steps 1 to 3 described on previous page)
Check by ear......Listen for the sound of a major leak.
Check by hand......Check for leak by feeling around jointed sections with hand.
Soap and water check (
∗
Snoop)......Bubbles will reveal the presence of a leak.
[Check 2] (When searching for a minor leak or when there has been a fall in pressure while the
system has been fully pressurized but the source of the leak cannot be traced.)
1. Release the nitrogen until the pressure reaches 13.05psi.
2. Increase pressure to 217psi using gaseous flon gas (R410A). (Nitrogen and flon gas mixed)
3. Search for the source of the leak using a leak detector.
4. If the source of the leak still cannot be traced then repressurize with nitrogen up to 551psi and
check again. (The pressure must not be increased to more than 551psi.)
Setup of Air-tight Test
As for the air-tight test, the setup of devices shown in the following figure is recommended with
considerations given to “vacuum drying and refrigerant additional charging”, which are operation
steps following the air-tightness test.
In order to conduct the air-tight test, with stop valves of 8.Gas side, 10.liquid side and 15.Oil
equalization piping and those of the refrigerant and vacuum pump all closed, then open the
nitrogen gas stop valve, 7.Valve A, 8.Valve B and 17. Valve C while adjusting the nitrogen gas
pressure regulating valve, thus increasing the pressure.
550
psi
500
450
400
350
300
250
200
150
100
50
0
13.05psi
217psi
551psi
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...