Carrier HH18HA160 Temp Switch 30067439-890 Simplified Diagnostics: Equipped with an

Simplified Diagnostics: Equipped with an integral hypodermic needle test point for rapid field pressure verification

always verify the wiring diagram and motor type before substituting relay technology

or tripped high-limit switches caused by setpoint drifting

How do I test the SWT2173

4" WC (water column) to monitor flue gas or air pressure within the combustion system

Carrier HH18HA160 Temp Switch 30067439-890 Simplified Diagnostics: Equipped with anThe Carrier HH18HA160 Temp Switch is a critical OEM limit switch designed for heavy duty thermal protection in commercial and residential HVAC systems. Engineered as a safety limit control, this genuine Carrier replacement part monitors the heat exchanger environment, automatically interrupting the burner circuit if temperatures exceed safe operating parameters. With a precise 160F cut out and a automatic 120F cut in reset, it prevents thermal stress