What does the yellow color code signify

typically opening at 70 degrees F and closing at 42 degrees F

The Sporlan 310000 MKC-1-120V is a heavy-duty solenoid coil designed for reliable actuation in industrial and commercial refrigeration units

maximizing thermal output while reducing carbon monoxide risks

which are utilized in both steam and hot water heating systems

Veris Industries PWLX03S Transducer 30067439-890 What does the yellow colorThe Veris Industries PWLX03S is a professional grade wet media differential pressure transducer engineered for high accuracy monitoring in HVAC and process control systems. Built with microprocessor profiled sensors, this unit delivers precise 0 to 50 PSID measurements across chillers, boilers, and heat exchangers. The integrated LCD display provides real time local indication of differential pressure, while the rugged NEMA 4 enclosure ensures