You must verify the -1

The Carrier HH18HA195 Limit Switch is a critical safety component designed for furnace high-temperature protection

it is less sensitive to orientation than mechanical relays

How do I verify compatibility with my PTAC

Johnson Controls TE-6300-105 Probe Els PW 17895 You must verify the -1The Johnson Controls TE 6300 105 is a high precision 1k ohm platinum Class A probe designed for versatile temperature sensing in demanding commercial HVAC configurations. This 12 inch trimmable temperature sensor is engineered as the professional grade TE 6300 102 replacement, offering superior accuracy and long term stability in air or liquid applications. As a thin film platinum sensor, it provides a reliable resistance to temperature relationship