Carrier PC211 Trim Refrigerant Charge

Checking the Auxiliary Switch on Guid e Vane Actuator
The auxiliary switch used to activate the oil reclaim system solenoids should move to the
OPEN position when the ac t uator is 70 degrees open. (At this point the guide vane s should be
30 degrees open .)
Trim Refrigerant Charge
If it becomes necessar y to ad just the refrigerant ch ar ge to obtain optional machi ne
performance, operat e the machine at design lo ad and then add or remove re fri gerant slowly
until the difference bet ween leaving chilled wa ter temperature and the c oo ler refrigerant
temperature reaches des i gn conditions or beco m es a m ini mum.
Do not overcharge
.
Refrigerant may be adde d either through the stora ge tank or directly into t he machine as
described in the section entitled, Refrigerant Charging .
To remove any e xcess refrige rant, follow the procedure in T ransfer Refrigerant from Machine
to Storage Tank section, Step s 1a and b.
Click here fo r Figure 38 — Guide Vane Act uator Linkage