Compressor Protection: Filters out scale

the Carrier LH33WP007 ensures precise timing and burner operation

the 157S series features an integral water column body

the GVD-7PL is specifically designed and certified for use with Category I gas-fired appliances

which is essential for proper communication with the HVAC system's main control board

Siemens Building Technology QFM3101 Sensor 322838-753 Compressor Protection: Filters out scaleThe Siemens Building Technology QFM3101 is a high precision duct relative humidity sensor designed for demanding building automation and HVAC control applications. Featuring a robust 4 20mA output signal, this sensor provides a linear 0 100% RH measurement with a strict 2% accuracy rating. Engineered for professional grade reliability, it functions as a direct functional cross for the HD2XMSX, ensuring seamless integration into existing control loops