Always verify the part number against the specific conversion kit instructions when switching fuel types

or CITY MULTI indoor unit

this OEM HVAC replacement part maintains consistent capacitance levels of 15 microfarads with a ±6% tolerance

Operating within a 0-50 PSI range

Measure the resistance across the sensor leads and compare the reading to a standard Carrier thermistor resistance chart based on the current ambient temperature at the probe

Siemens Building Technology 540-660B Sensor 324846-701 Always verify the part numberThe Siemens 540 660B Sensor is a staple 10K Ohm NTC thermistor designed for precision environmental monitoring in commercial HVAC applications. Engineered for seamless integration with Siemens Terminal Equipment Controllers (TEC) and LONMARK compliant systems, this Type II NTC thermistor offers a reliable sensing range from 55F to 95F. As a veteran grade wall mount room temperature sensor, it features an integrated set point slide and a flush mounted