What is the pressure to charge an aircondition unit with R407c?

The pressure to charge an air conditioning unit with R407C refrigerant typically ranges from 100 to 200 psi on the low side and 250 to 400 psi on the high side, depending on the ambient temperature and the specific system design. It's essential to refer to the manufacturer's specifications for the exact pressure requirements and to ensure proper charging procedures are followed. Always use appropriate safety precautions when handling refrigerants.