- 17 -
completely open the stop valve of indoor unit before starting the operation.
(Pic 7, 8)
6, Vacuumize:
(1),Equipment: vacuum pump, pressure gauge
,
Allen wrench
(2),Discharge the refrigerant added to the connecting pipe when doing leakage detecting .
(3), Use a hexagon socket to completely unscrew the outdoor unit’s stop valve counterclockwise,
draw a vacuum from the needle valve of the outdoor unit’s stop valve.
(
Pic 9
)
(Pic 9)
7, To ensure that the vacuum is
acceptable, the pumping time cannot less than 20 minutes.
(Pic10,11),Or the pressure value of the pressure gauge is lower than -0.1MPa.
Summary of Contents for ISW-10 SF1-DN1
Page 21: ... 21 XD 05BSPM ...
Page 56: ... 56 By sliding the button you can adjust the setting parameters Function buttons ...
Page 65: ......