HVAC Refrigerant Retrofit Project

« back to bid-list

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

Owner's Representative:

Value: 2.6Million

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).