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This Trane VAL18890 is an expansion valve. It controls the flow of refrigerant in HVAC systems to ensure efficient operation and cooling. The valve works in tandem with the cooling cycle, allowing for optimal temperature management.
Trane VAL18890 expansion valve is essential for maintaining efficiency in air conditioning systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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