There is no functional or physical difference

this specific assembly is calibrated for natural gas water heaters only

System Reliability: Protects the compressor against vacuum operation and overheating caused by refrigerant loss

This kit resolves "stuck open" issues by replacing the armature spring and clearing the pilot orifice

Is the R101432-13 compatible with Lennox systems

Carrier HH19ZA170 Switch 30067439-890 There is no functional orThe 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