allowing for torsional wind-up between 7 and 21 degrees to dampen vibration and protect sensitive HVACR equipment from shock loads

the HK06WC090 is the authorized successor to the HK06WC088 and several other older furnace air switches

Using them with 120V or higher will result in immediate equipment failure and safety hazards

it meets the rigorous standards required for field service and industrial installations where OEM consistency is necessary for system calibration

While newer 40XL-7-FS models include a flood sensor

Lochinvar & A.O. Smith 100133599 Pump 318423-701 allowing for torsional wind-up betweenThe Lochinvar & A. O. Smith 100133599 Pump is a heavy duty, 1 2 HP all bronze circulation pump engineered for peak performance in high demand hydronic heating and commercial water heating systems. Designed as a high efficiency centrifugal pump, this 115V, 9. 8Amp unit features a 2 inch flange connection to ensure maximum flow rates and reduced head loss in complex piping arrays. The all bronze construction provides superior corrosion resistance,