HVAC Refrigerant Retrofit Project
Project Location: Santa Rosa
Bidder: Arntz Builders Inc.
Owner: State of California Department of General Services
Bid Date: 02/24/2021
Bid Time: 2:00 PM
Estimator: David Arntz
Notes: Replace two built-up rooftop HVAC systems with two new packaged HVAC units. Existing HVAC controls to be fitted to the new units and reconnected to the existing building management system. - Replace two electrical distribution switchboards on the roof and provide new conduit/wire to the new HVAC units, new receptacles and some existing equipment. - Provide new structural lightweight concrete beams for the new roof equipment above the roof deck and reinforce existing steel members below deck. - Replace roofing as required for the new HVAC equipment (approximately 85% of the roof will remain as is).