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a replacement is necessary to prevent system imbalance
even in systems subject to heavy particulate loading
For fail-safe requirements
Verify your transformer and line voltage before installation
Nordyne 664343R TXV Freon a replacement is necessary toAs a veteran tech, you know that keeping a 3 ton system Dialed in requires a precise metering device. The Nordyne 664343R TXV is the genuine OEM replacement for R 410A systems, engineered to maintain the critical superheat levels necessary for peak evaporator performance. Designed specifically for 3 ton air conditioning and heat pump units, this thermostatic expansion valve uses a pressure sensing bulb to modulate refrigerant flow based on heat load,
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