Key Benefits: Precise Voltage Regulation: Operates at 208/240V to ensure reliable power distribution to the igniter and blower motor

the TX3N2 is strictly designed for R22 refrigerant

unexpected flame failure lockouts

identified as Hatcol 3693

this unit features a 0-1000 Ohm resistance network that simulates a potentiometer for seamless electric actuator control and resistive sensor simulation

Lochinvar & A.O. Smith 100277940 Board 30067439-890 Key Benefits: Precise Voltage Regulation:The Lochinvar & A. O. Smith 100277940 Board is a critical low voltage connection board engineered for precision signaling in high efficiency heating systems. Specifically designed for the Knight KH055 285 fire tube boilers, this OEM replacement part serves as the central communication interface between the main controller and auxiliary system components. As a veteran technician knows, maintaining signal integrity in commercial water heating