Armstrong Fluid Technology 816013-111K Flange Set 318518-761 power should be applied to

power should be applied to the heater 24 hours prior to initial compressor startup to ensure all liquid refrigerant has been boiled off the crankcase

Incorporating this HVAC draft pressure switch into your service routine ensures long-term reliability and code compliance for high-efficiency heating applications

also known as Proof of Closure (POC)

ensuring stable operation for residential and commercial heating and cooling units

What is the primary function of the external equalizer on this model

Armstrong Fluid Technology 816013-111K Flange Set 318518-761 power should be applied toThe Armstrong Fluid Technology 816013 111K Flange Set and Hardware Kit is built for secure, leak resistant connections on hydronic circulator installations. This 3 4 inch flange kit is designed to match Armstrong pump connections, providing a proper seal and alignment when mounting circulators in closed loop heating or chilled water systems. Constructed from durable cast iron, this circulator pump flange set handles typical system pressures and