Lochinvar & A.O. Smith 100291509 Anti-Scale System 320788-703 The engineered non-mechanical seat-to-disc alignment

The engineered non-mechanical seat-to-disc alignment ensures the valve will not stick or freeze

The Amana-Goodman 10197201S Collector Box is a critical factory-authorized OEM part engineered for high-efficiency condensing furnaces

While hardwiring to 20-30Vac is recommended

including TFD and AFD series models

closing the circuit

Lochinvar & A.O. Smith 100291509 Anti-Scale System 320788-703 The engineered non-mechanical seat-to-disc alignmentThe Lochinvar & A. O. Smith 100291509 Anti Scale System, also known as the PP AS20, is a standalone water treatment system designed to mitigate hard water scale in high efficiency tankless water heaters and commercial boilers. Utilizing advanced Template Assisted Crystallization (TAC) technology, this unit converts dissolved calcium and magnesium minerals into inactive microscopic crystals. These crystals remain suspended in the water and pass safely