R410A DC Inverter VRF V4 Plus W Series 50Hz MCAC-VTSM-2016-04
190 Installation
CAUTION:
1. Pressurized nitrogen（3.9MPa）is used for air tightness test.
2. It is not allow to use oxygen, combustible gas or toxic gas to conduct the air tightness test.
3. When welding, please use wet cloth insulating the low pressure valve for protection.
4. For avoid the equipment be damaged, the pressure maintained time should not last too long.
4.10 Vacuum with vacuum pump
1.Use the vacuum pump which vacuum level lower than -0.1MPa and the air discharge capacity above
40L/min.
2.The main unit is not necessary to vacuum, don’t open the main unit gas and liquid pipe shut-off valves.
3.Make sure the vacuum pump could result as -0.1MPa or below after 2 hrs or above operation. If the pump
operated 3 hrs or above could not achieve to -0.1MPa or below, please check whether water mix or gas leak
inside of the pipe.
To Next Page
Loading...
Need help?
General