Cornelius IAF1000, Руководство по установке

Страница: 25 / 26

22
630460004
4. *After proper evacuation hold test has been performed, the
refrigerant charge should be “dumped” into the receiver until
the pressure equalizes, stopping the flow. Do not try to
throttle the refrigerant flow. Doing so will allow system
pressure to balance too soon. The high-side service valve
should be closed and the balance of the charge fed slowly
through the suction side service valve with the compressor
operational. Control the feed rate at no faster than four (4)
ounces [113.g] per minute to ensure the compressor oil does
not become too saturated with refrigerant resulting in a loss
of compressor lubrication.
5. All refrigerant re-charging must be weighed into the system,
utilizing an electronic charging scale. DO NOT attempt to
recharge the system by sight glass, system pressure, amper-
age, frost line or sweat patterns.
6. Always leak check entire system after recharge.
Before programming the electronic scales to “dump” the
charge,
de-energize the liquid line solenoid, close the shut-off valve on
vacuum pump and low side of the manifold set.
Caution