Intermatic GMXST-I-240 Timer L99H008 making it a versatile OEM

making it a versatile OEM replacement part for diverse firing configurations

Always verify the wiring schematic on the furnace access door to confirm terminal identification before completing the swap

Standardized Safety: UL and CSA listed

Failure is often attributed to a degraded thermopile or a tripped ECO

Most configurations of this 1/4 HP HVAC motor require a 5 MFD / 370V run capacitor

Intermatic GMXST-I-240 Timer L99H008 making it a versatile OEMProfessional grade Intermatic GMXST I 240 electromechanical timers are the industry standard for high amperage 208 240V SPDT switching in demanding HVACR environments. Built for 24 hour time control, this unit features a true clock face with 96 captive trippers, allowing for 15 minute interval scheduling across a 24 hour cycle. The robust 21A resistive rating and 2 HP motor load capacity at 240VAC make it ideal for managing commercial refrigeration,