Search results for: rooftop variable air

Bid Number:23-32 Bid Title:Two Package Rooftop Variable Air Volume DOAS Category:PurchasingStatus:Open Description: The Town of Lexington invites sealed bids for the purchase and delivery of two (2) package rooftop variable air volume dedicated outdoor system (DOAS). 100% outside air, air source heat pump and energy recovery wheel units, to be received at:Town Office Building- Purchasing Office 1625 Massachusetts Ave Lexington, MA 02420Until 12:00

Mechanical scope is to replace three 100 Ton variable air volume rooftop air handling units serving general office space and a makeup air rooftop unit serving an open bay area. Mechanical scope also includes insulating existing hot water piping connections for approximately 90 VAVs and replacing unserviceable VAV hot water valves.

Scope: The project includes the replacement of the building automation system front end, two (2) rooftop air handling unit controllers, and variable air volume (VAV) box controllers and actuators. B. Estimate: $135,000 to $155,000 C. MBE/WBE/SDVE Goals: MBE 10%, WBE 10%, and SDVE 3%.

New systems will consist of a Variable Air Volume System and a 25-ton Rooftop unit (RTU).

Scope: The project includes the refurbishing of the emergency generator, replacing an automatic transfer switch, five rooftop units, and adding 10 variable air volume terminals, and controls for new HVAC Equipment. B. Estimate: $183,00.00 through $252,000.00 C. MBE/WBE/SDVE Goals: MBE 10%, WBE 10%, & SDVE 3%.

The project is generally described as the replacement of two (2) variable air volume (VAV) packaged rooftop units, fifty-one (51) series fan-powered variable air volume terminals, one (1) air handling unit with associated DX condensing unit, miscellaneous hydronic pumps, and all associated HVAC controls. Sealed bids will be received electronically through eVA or at Virginia Community College System, Attention: Ms.

The HVAC system scope includes replacing existing packaged rooftop units with new packaged rooftop units, Variable Refrigerant Flow (VRF) system, and dedicated outside air units. A new building automation system will also be added.