Replacement of Johnson Control Actuator Valves at WRF

The City of Pueblo is seeking a qualified commercial plumbing or mechanical contractor to replace eight obsolete Johnson Controls actuator valves serving the hot-water circulation loop in the Administration Building at the Wastewater Reclamation Facility (WRF). The project requires compatible replacement valves—Johnson Controls Series M100 or approved equal—with 120V power and 24V transformer/thermostat control.

The City of Pueblo Administration Building’s hot-water circulation system includes eight Johnson Controls actuator valves installed during the building’s original construction in the late 1980s. These valves regulate hot-water flow in response to heating demands and support the coils serving the building’s air-handling units.

The existing valves have reached the end of their useful service life and are now obsolete. Replacement parts are no longer available, preventing reliable repair or rebuild of the current equipment. To maintain dependable heating-system operation, the City intends to replace all eight valves with Johnson Controls Series M100 valves, or approved equivalents, compatible with the existing 120V power supply and 24V thermostat-control transformers.