Carrier HH19ZA170 Switch 30067439-890 Using it with propane may

Using it with propane may cause improper ignition and safety issues

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

the control board will lock out the ignition process as a safety precaution

maintaining the same 0

) operation on compatible 2-way Erie valve bodies

Carrier HH19ZA170 Switch 30067439-890 Using it with propane mayThe 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