Description
The Lennox 77M34 Sampling Tube is used to draw air samples from plenum spaces for measurement, monitoring, or diagnostic purposes. It is commonly installed in residential and commercial heating, ventilation, and air conditioning systems where monitoring airflow and temperature is required for system performance evaluation or regulatory compliance. The operator acts as a controlled access point for sensors or instruments, allowing accurate collection of air characteristics without disrupting normal system operation. The system , airflow verification, and environmental monitoring enable technicians to assess performance.









