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HVAC Design Services for 324 Malvern Avenue


Location
Arkansas
Publication Date
11/22/2019 08:21 AM EST
Closing Date
12/06/2019 06:00 PM EST
Issuing Organization
City of Hot Springs
Solicitation Number
Description

Specifications include, but are not limited to: Proposed System: The new system proposal will be a variable refrigerant flow (vfr) system along with a dedicated outside air ventilation unit. The existing air handler, chiller/boiler and condenser unit will be abandoned or demolished as required. The dual-duct terminal boxes will be replaced with vfr units. The vfr units will either be ducted units connecting to existing duct work, or ceiling cassette units, dependent on the room/zone size. The existing roof top condensing unit will be replaced with new vrf heat recovery condensing units. The refrigerant lines between outdoor and indoor units will be routed through existing cold air duct from the old air handler penthouse. Each room/zone is to have independent heating and cooling capability/controls. The ventilation air for the new hvac will be provided by a rooftop packaged unit placed on top of the second floor roof. The ventilation air will be connected to existing hot air duct which will distribute it throughout the building. The ventilation air will be neutral temperature and connect to ceiling grilles or directly to ceiling cassettes in each room/zone. Ventilation air will be balance to volume required by current codes. Heating and cooling loads as well as ventilation air requirements will need to be calculated for the building. Electrical Service: Provide/modify electrical service to approx. 35 vrf indoor units (depending on design). Provide power to necessary outside vfr outdoor units, ventilation unit and all necessary electrical components for the new system. Adequate power is available in the building, however, any necessary upgrades to the existing system needs to be identified and included in the design package of the new hvac system. It is the city’s intent for this to be a turnkey, design contract including any necessary electrical upgrades need to accommodate the new hvac system; provide final construction drawings and specifications; verify total heated and cooled square footage for final design.

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