Carrier HH18HA017 Limit Switch 326058-757 Does this valve include an

Does this valve include an external equalizer

Does this include the keys and pulleys

Can this be mounted in a vertical duct

while the 24V 40A contactor ratings meet strict 50/60 Hz requirements for versatile application across various geothermal and air-source models

Carrier HH18HA017 Limit Switch 326058-757 Does this valve include anThe Carrier HH18HA017 is a critical safety component designed for precise thermal management in high performance HVAC systems. This L170 40F limit switch functions as a primary high limit control, monitoring the heat exchanger or plenum temperatures to prevent equipment damage. When the internal temperature reaches the 170F threshold, the internal bimetal disc interrupts the electrical circuit to the burner or heating elements. As the system cools to