Resideo THX9421R5021WW Thermostat R-22 the "/U" suffix simply denotes

the "/U" suffix simply denotes the retail-packaged universal version of the same Honeywell ignition cable

you ensure that the stroke and force delivery of the actuator remain within factory specifications

Its compact aluminum die-cast housing provides a rugged footprint without sacrificing the high capacity characteristics required by veteran HVAC technicians for demanding gas appliance pressure regulation tasks

This bill-of-material 800 package includes the necessary 42-inch molded plug wiring harness and mounting hardware for immediate installation

Resideo THX9421R5021WW Thermostat R-22 the "/U" suffix simply denotesThe Resideo THX9421R5021WW is a high performance Prestige IAQ 2 Wire Thermostat engineered for technicians managing complex residential or light commercial HVAC systems. This high definition color touchscreen thermostat utilizes RedLINK wireless technology to provide comprehensive control over temperature and indoor air quality through a simplified 2 wire connection. When integrated with a Honeywell THM5421R1021 equipment interface module, it manages