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Engineered with a 3/4" NPT connection and a rugged aluminum body
This intake air pressure switch is factory-calibrated at a 0
What happens if the flow switch fails
Most failures result from mineral scale buildup on the probe tip or internal moisture penetration
Lennox 21L87 TXV R-407A Engineered with a 3/4" NPTMaintain precise system balance with the Lennox 21L87 TXV, a genuine OEM thermostatic expansion valve designed specifically for Lennox air conditioning and heat pump units. This valve is engineered to modulate refrigerant flow dynamically based on the cooling load, ensuring the evaporator operates at peak efficiency. By maintaining the optimal superheat at the evaporator outlet, the 21L87 prevents liquid slugging and protects the compressor from
US$ 115.95
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