Robertshaw 5500-202M Infinite Switch it requires a technician to

it requires a technician to physically inspect the heat exchanger and burner alignment before the system can be put back into service

This HVAC high limit control is built for heavy-duty cycling and provides the reliable response times necessary for York

the F29-0193 utilizes a ring base design that allows for installation over existing thermostats without needing to disconnect wiring

leading to premature failure

Professional installation is required to ensure proper insertion depth and electrical connection within the low-voltage control string

Robertshaw 5500-202M Infinite Switch it requires a technician toThe Robertshaw 5500 202M is a commercial grade 240V infinite switch engineered for precise proportional control of resistive heating loads in electric ranges, hot plates, and warming drawers. As a direct OEM replacement parts solution for the discontinued 5500 202 and INF 240 277 models, this M series infinite switch features a compact housing designed for tight cabinetry and control panels. Rated for up to 15 Amps at 240VAC, it manages power