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Operating on a 480Vac supply
F & G hazardous locations
Are the speed taps color-coded for standard York wiring
it ensures the precise static pressure and thermal transfer required to protect the compressor from overheating
Facilitates precise feedwater regulation to improve overall boiler efficiency and thermal stability
Lochinvar & A.O. Smith 100277772 Pressure Switch 320074-702 Operating on a 480Vac supplyThe Lochinvar & A. O. Smith 100277772 Pressure Switch is a critical safety component engineered for high altitude applications in Crest FBN and FBL heating boilers. This F9 high altitude air pressure switch is factory calibrated with a 4. 1 in WC set point to monitor combustion chamber pressure accurately in thinned atmospheres. It serves as a proving switch, ensuring the combustion air blower provides sufficient flow for a clean, safe burn before the