CMAR HVAC Replacement at Sahuaro and Shaw Butte

Shaw Butte Elementary - Provide pre-construction and construction services to replace approximately 61 classroom and Administration area rootop DX units of vaious tonnages, 4 large DX units for cafeteia and 1 evaporative makeup air unit for kitchen. Provide an Alternate for an indirect or two-stage unit in lieu of direct evaporative unit. Owner desires "like for like" replacement of existing rootop units with owner preferred units with ionizing air treatment. Contractor to provide design assist in ield verifying unit sizes and conigurations as well as existing conditions for electrical and condensate. Contractor to assist the owner's structural engineer is ield veriying existing conditions and the design of any structural reinforcement required. Contactor to assist owner in unit selections. Contractor to ield measure and provide adapter curbs for each unit to be replaced. Conirm sizing and adequacy of existing electical circuits serving DX units and upgrade with new wiring and breakers as required. Provide new disconnects and new rootop condensate piping connected to existing drains. Per structural report and details, make necessary modiications to the existing structure to suppot the new units. Patch and repair roof and inteior construction as required. Coordinate work with district controls contractor who will provide wiring, interfaces and new thermostats for each unit. Provide duct detector and relay for fire alarm shutdown for units over 6,000 cfm or as required by code. Provide pre-installation and post installation test and balance measurement and report. Units to be balanced for outdoor air as calculated by ionizer manufacturer. Coordinate with distict commissioning vendor for submittal approvals, inspection of installation, start-up observation and commissioning of the new system. Sahuaro Elementary - Provide pre-construction and construction services to replace approximately 59 classroom and Administration area rootop DX units of vaious tonnages, 5 large DX units for cafeteria and 1 evaporative make-up air unit for kitchen. Provide an Alternate for an indirect or two-stage unit in lieu of direct evaporative unit. Owner desires "like for like" replacement of existing rootop units with owner preferred units with ionizing air treatment. Contractor to provide design assist in ield veiying unit sizes and conigurations as well as existing conditions for electical and condensate. Contractor to assist the owner's structural engineer is field verifying existing conditions and the design of any structural reinforcement required. Contactor to assist owner in unit selections. Contractor to ield measure and provide adapter curbs for each unit to be replaced. Confirm sizing and adequacy of existing electrical circuits serving DX units and upgrade with new wiing and breakers as required. Provide new disconnects and new rootop condensate piping connected to existing drains. Per structural repot and details, make necessary modiications to the existing structure to suppot the new units. Patch and repair roof and interior construction as required. Coordinate work with distict controls contractor who will provide wiring, interfaces and new thermostats for each unit. Provide duct detector and relay for ire alarm shutdown for units over 6,000 cfm or as required by code. Provide pre-installation and post installation test and balance measurement and repot. Units to be balanced for outdoor air as calculated by ionizer manufacturer. Coordinate with distict commissioning vendor for submittal approvals, inspection of installation, stat-up observation and commissioning of the new system.

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Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment.