the K90-13 is an alternate kit with different trip characteristics

With support for 3 heating and 2 cooling stages

Universal Series Compatibility: Engineered for Weil McLain HE

this kit mitigates that risk by keeping the crankcase temperature consistently above the system’s saturation point during off-cycles

eliminating the need for a separate upstream regulator

Resideo TH106 Thermostat 326070-701 the K90-13 is an alternateThe Resideo TH106 U is a high capacity line voltage programmable thermostat designed for precision control of electric heating systems. Engineered with a TRIAC switching mechanism, this unit provides silent operation and unsurpassed temperature accuracy within 0. 27F (0. 15C), effectively eliminating the temperature swings common in mechanical or relay based controls. It is compatible with a 120 240 Vac power supply and supports a maximum resistive