System Sensor B112LP Detector What is the purpose of

What is the purpose of the red housing

this switch is specifically calibrated for units requiring a 0

Always reference your specific model and serial number against the manufacturer’s parts list to ensure a precise match

the SEN1159 is versatile enough for both ambient outdoor air sensing and return/discharge air temperature monitoring in compatible Trane-certified air handling systems

Can this spring be used in other Sensus regulator models

System Sensor B112LP Detector What is the purpose ofSystem Sensor B112LP Gas Smoke Detection, 24Vdc Nominal Voltage, 4 Wire, Ceiling Mounted, Smoke Detector Adapter Base with SPST NO and SPDT relay contacts and a 470 ohm current limiting resistor for 100 Series Smoke Detector Heads