Cleveland Controls RFS-4100-040 Switch How do I test this

How do I test this flame sensor in the field

thread pitch

this brass safety valve is factory set at 50 PSI with a discharge capacity of 697

this NPT drain valve proves essential for professional hydronic system maintenance

Manual Reset Safety: Prevents automatic restarts after a high-limit event

Cleveland Controls RFS-4100-040 Switch How do I test thisThe Cleveland Controls RFS 4100 040 is a heavy duty, field adjustable differential air pressure switch designed for critical proving applications in HVAC and Energy Management Systems. Engineered to detect positive, negative, or differential pressure, this airflow proving switch features a sensing range of 0. 15" WC to 5. 0" WC. The internal silicone diaphragm and snap acting SPDT switch provide reliable performance, rated for 300 VA pilot duty at 115