Carrier PC211 specifications Click here for Guide Vane Actuator Linkage

Checking the Auxiliary Switch on Guide Vane Actuator

The auxiliary switch used to activate the oil reclaim system solenoids should move to the OPEN position when the actuator is 70 degrees open. (At this point the guide vanes should be 30 degrees open.)

Click here for Figure 38 — Guide Vane Actuator Linkage

Trim Refrigerant Charge

If it becomes necessary to adjust the refrigerant charge to obtain optional machine performance, operate the machine at design load and then add or remove refrigerant slowly until the difference between leaving chilled water temperature and the cooler refrigerant temperature reaches design conditions or becomes a minimum. Do not overcharge.

Refrigerant may be added either through the storage tank or directly into the machine as described in the section entitled, Refrigerant Charging.

To remove any excess refrigerant, follow the procedure in Transfer Refrigerant from Machine to Storage Tank section, Steps 1a and b.