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The R04320 is specific to certain AAON series units
A faulty switch may fail to close at 120
The rugged aluminum die-cast housing and corrosion-resistant internal components provide reliable service in ambient temperatures ranging from -40°F to 205°F
With a 24VAC coil and robust 25A resistive rating at 120/240V
ensuring exact fitment and electrical compatibility without the need for field modifications
Lochinvar & A.O. Smith 100166146 Pressure Switch 30067439-890 The R04320 is specific toThe Lochinvar 100166146 Pressure Switch is a critical safety component designed for precise pressure monitoring within high efficiency commercial boilers and water heaters. Engineered as a direct replacement for the PRS2045, this manual reset pressure switch ensures the burners only fire when the venting system maintains safe atmospheric conditions. This OEM Lochinvar part is built to handle the rigorous duty cycles of A. O. Smith and Lochinvar Knight
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