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Refrigerant Charging Procedure
1. Determine addition refrigerant charge.
Please refer to your units installation manual for proper charge. If your lineset exceeds 25’, additional charge will
be required. e charge must we weighed in with a refrigerant charging scale.
Multiply refrigerant charge per by total tubing length
- 25.
Example:
35’ of installed tubing, installation manual requires
additional .24 ounces per foot.
35-25=10 additional . x .24 = 2.4 ounces to be added
2. Adding addition refrigerant charge.
Remove the suction port cap on the valve, then attach
a 5/16”F x 1/4”M adapter to the suction port. Connect
your low side hose to the 1/4”F tting.
3. Attach refrigerant tank to hose
Close all valves on your gauge set, then connect the
correct refrigerant tank to the charging hose.
4. Zero charging scale
Place the refrigerant tank on the charging scale. Open
the tank valve, turn on the scale, then zero the scale.
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