Pentair Air Flow Switch For MasterTemp And Max-E-Therm Heaters | 42001-0061S Pentair EasyTouch Transformer providing quick and efficient ignition

providing quick and efficient ignition

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Its precision engineering ensures easy installation and maintenance

Application of Black Algaetrine: Apply Black Algaetrine at a rate of 12 ounces per 10

Pentair Air Flow Switch For MasterTemp And Max-E-Therm Heaters | 42001-0061S Pentair EasyTouch Transformer providing quick and efficient ignitionThe 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