Many of HeatLink’s Mechanical Room in a Box panels now feature a programmable logic control-based wiring harness in place of the original power box. The PLC offers a significant improvement on lifespan and reliability, as well as flexibility to be installed on a wide variety of panels. It is an easy-to-use and dependable control which is programmed, configured and tested at the company’s manufacturing facility. The PLC-based wiring harness requires field wiring and a 120V outlet to provide years of comfort.