Pentair Air Flow Switch For MasterTemp And Max-E-Therm Heaters | 42001-0061S Pentair EasyTouch Transformer and long operating cycles

and long operating cycles

fdxlbvs1930 fits all h150fdn through h500fd heaters

available pod shoe set for hayward navigator locally

compatible with heaters made before 11/20/2014

Pentair Air Flow Switch For MasterTemp And Max-E-Therm Heaters | 42001-0061S Pentair EasyTouch Transformer and long operating cyclesThe OEM Pentair air flow switch (AFS), which senses the pressure drop across the air metering orifice. The air flow switch (AFS) senses the pressure drop across the air metering orifice. As soon as there is sufficient air flow, the AFS closes, closing the circuit to the hot surface igniter (HSI), which ignites the fuel mixture. On a call for heat, the blower and HSI are energized. In about 20 seconds, the gas valve opens and ignition occurs. The HSI