Note On Adding Refrigerant - Mars Comfort-Aire Century VCD24 SA Series Installation Manual

Hyper heat single zone air handler & condenser
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Installation and Operation Manual - VCDxxSA

NOTE ON ADDING REFRIGERANT

CAUTION
DO NOT mix refrigerant types.
Some systems require additional charging depending on pipe lengths. The standard pipe length varies
according to local regulations. For example, in North America, the standard pipe length is 7.5m (25').
In other areas, the standard pipe length is 5m (16'). The refrigerant should be charged from the service
port on the outdoor unit's low pressure valve. The additional refrigerant to be charged can be
calculated using the following formula:
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