Bard HVAC 8403-060 Temp/Humidity Control Els PW 17895 The switch is calibrated to

The switch is calibrated to open (cut-out) at 145°F and close (cut-in) at 115°F

making it a reliable choice for maintaining system efficiency in R-22 charge-compensated setups

it is primarily intended for indoor gas piping between the meter and the appliance inlet

The M4 terminal is an optional connection used specifically to power a green LED light to indicate when the damper is in the open position

Durable Construction: Engineered to handle the thermal demands of exhaust systems and reduce maintenance callbacks

Bard HVAC 8403-060 Temp/Humidity Control Els PW 17895 The switch is calibrated toThe Bard HVAC 8403 060 is a high performance OEM digital thermostat and environmental controller engineered for precise atmospheric management in specialized applications. Designed for single room or equipment level control, this 3 stage heat 3 stage cool unit integrates temperature, humidity, and ventilation regulation into a single 5 button interface. It is specifically built for Bard wall mount HVAC systems, making it a standard choice for telecom