Why should technicians replace the stem wiper during packing maintenance

This specific model is the bronze test cock assembly

this relay effectively manages the 24VA power rating needed to interface low-voltage thermostats with high-voltage fan circuits

such as a blower failure or restricted airflow

as an Allied Air Enterprises component

Johnson Controls TE-6344P-1 Temperature Sensor Why should technicians replace theThe Johnson Controls TE 6344P 1 Temperature Sensor is a professional grade 2. 2k ohm NTC thermistor designed for high accuracy space sensing in commercial HVAC systems. This wall mounting unit features a negative temperature coefficient (NTC) element, providing a reference resistance of 2,252 ohms at 77? F (25? C). Engineered for seamless integration with Metasys and other building automation systems, the TE 6344P 1 utilizes a thermistor element that