1) Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the
2-way and
3-way valves are set to the closed position.
2) Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port..
3) Connect the charge hose of handle hi connection to the vacuum pump.
4) Fully open the handle Lo of the manifold valve.
5) Operate the vacuum pump to evacuate.
6) Make evacuation for 30 minutes and check whether the compound meter indicates -0.1Mpa. If the
meter does not indicate -0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more.
If the pressure can’t achieve -0.1Mpa after pumping 50 minutes, please check if there are some
leakage points.
Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump.
Confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum
pump).
7) Turn the flare nut of the 3-way valves about 45° counterclockwise for 6 or 7seconds after the gas
coming out, then tighten the flare nut again. Make sure the pressure display in the pressure indicator is
a little higher than the atmosphere pressure. Then remove the charge hose from the 3 way valve.
8) Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve.
2. Air purging by refrigerant
Содержание PAC1203711
Страница 1: ...Service Manual PAC1203711 PAC1803711 PAC2403711 ...
Страница 9: ...Model L mm R mm H mm Dimension of installation hole mm PAC1203711 100 95 45 65 PAC1803711 110 100 45 ...
Страница 10: ...Model L mm R mm H mm Dimension of installation hole mm PAC2403711 293 163 45 65 H L R ...
Страница 24: ...Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage ...