LG THERMA V, Installation Manual, Page: 268 / 277

268
COMMISSIONING
ENGLISH
Vacuum & Charge of Refrigerant
By default, the product was charged of refrigerant.
Vacuum and refrigerant charge, If there is leak refrigerant.
1. Vacuum
To work of vacuum action. when the leak of refrigerant.
Vacuum pump
(0.5 ~ 1 HP)
Lo Hi
Manifold valve
(For Split)
Pressure
gauge
Open Close
SVC Port
Manifold gauge
When selecting a vacuum, you should select one which is capable of achieving 0.2 Torr of
ultimate vacuum. Degree of vacuum is expressed in Torr, micron,mmHg, and Pascal (Pa). The
units correlate as follows:
Unit
Standard atmospheric
pressure
Perfect vacuum
Gage Pressure Pa 0 -1.033
Absolute Pressure Pa 1.033 0
Torr Torr 760 0
Micron Micron 760 000 0
mmHg mmHg 0 760
Pa Pa 1 013.33 0
(For Hydrosplit)
SVC Port
Manifold gauge