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Evacuation of “PCL” model systems
• “PCL” systems do not require evacuation.
Do not use the system compressor to evacuate the system. Do not start the compressor while the system is under
vacuum. This may damage to the compressor and cause premature system failure.
Refrigerant Charging
• The refrigerant charge should be added to the system through the liquid line service valve located on the condensing
unit.
• Do not charge liquid refrigerant into the suction service valve!
• The initial charge should be determined by weight and sight glass indication.
• Start the system. If the condensing temperature is 105° F or greater, charge the system until the sight glass clears.
• If the condensing unit temperature is below 105° F, reduce the condenser face surface area to raise the discharge
pressures above 105° F and to charge to a clear sight glass.
• Return to a full condenser face area when charging is complete.
NOTE: PC & PCL refrigerant charge amounts are based on average ambient operating temperatures across the United
States. Any refrigerant amount added or removed based on ambient operating temperatures is considered part of normal
maintenance and is not covered under warranty.
Do not charge liquid refrigerant into the suction service valve located on the condensing unit. Do not overcharge the
system. These conditions can permit liquid refrigerant to enter the compressor and cause damage to internal
components resulting in premature system failure.
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