Line Set Refrigerant Charge Addition
Calculate exact grams and ounces of refrigerant to weigh in for split AC and VRF systems with extended pipe runs beyond factory charge.
Technical Engineering Guide & Field Diagnostic Practices
Air conditioner outdoor condensing units come pre-charged from the factory for a standard piping length (typically 15 to 25 feet). Whenever piping length exceeds factory limits, additional virgin refrigerant must be weighed in using a digital scale to prevent evaporator starvation and compressor overheating.
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