Carrier HH19ZA170 Switch 30067439-890 000 service hours or annually

000 service hours or annually to prevent poor atomization and excessive soot accumulation

maintaining the same 0

Adjustable Pitch Settings: Permits the technician to dial in the exact pitch diameter (1

the STE-1451 is specifically optimized for outside air applications due to its sun shield and weatherproof gasketed housing

) operation on compatible 2-way Erie valve bodies

Carrier HH19ZA170 Switch 30067439-890 000 service hours or annuallyThe Carrier HH19ZA170 is a high limit HVAC temperature safety switch engineered for critical thermal protection in residential and commercial furnaces. As a genuine OEM replacement part, this 170 degree limit switch is calibrated to effectively interrupt the heating cycle if the internal plenum temperature reaches its thermal cutout threshold of 170F. The HH19ZA170 limit switch serves as a mandatory safeguard, preventing heat exchanger damage and