Renovation of a recreation facility in Wilmette, Illinois. Completed plans call for the renovation of a one-story above grade recreation facility.

The Wilmette Park District is seeking sealed base bids for the removal and replacement of the existing Centennial cooling tower. The scope of work includes the removal of the existing cooling tower, and installation of a new cooling tower that meets the required specifications. Additionally, a new concrete pad will be poured on the south side of the building. Once the pad has been poured and set, the newly purchased cooling tower will be placed, and a sound attenuation wall shall be placed around the cooling tower. The bidder will find attached: the acoustic report that identifies the concrete pad, attenuation wall and sound ratings, the required cooling tower selected by the Park District, and the supported cooling tower structure documents. The existing cooling tower must remain active through May 1st - October 31st and could extend longer based on weather and cooling demands. It is the intent of this specification to describe the equipment and installation in all respects. Questions may be directed to Matt Marubio, Building Services Foreperson, at mmarubio@wilpark.org. or Anna Murray, Parks Planner at amurray@wilpark.org Base Bid - Centennial Cooling Tower Replacement o Provide carbon steel w-beams to concrete slab at new location of evaporative cooling tower. o Drain down of existing glycol piping between evaporative cooling tower and mechanical room heat exchanger. o Preliminary testing of existing glycol flow. o Testing of existing glycol solution and reporting to owner. o Staging of existing glycol solution to reintroduce to the glycol system to onsite storage location. o Make safe of existing evaporative cooling unit equipment to include: o Disconnecting (8) 4" GWS&R piping connections (from plate and frameHX). o Disconnecting (2) 1-1/2" GWS&R piping connections (to compressor HX). o Disconnecting (1) 2" makeup water connection (from mech room domestic water). o Disconnecting (1) 1" chemical feed connections (from mech room chemical pump). o Removal of existing fill panels to reduce weight of unit prior to relocating. o Disconnecting of split sections of unit to relocate unit is sections. o Removal of expansion tank and staged for reinstallation. o Removal of recirculating pump and PVC pipe header prior to relocation. o Crane rental and rigging of existing evaporative cooling tower to parking lot area for staging removal. o Demolition of existing PVC GWS&R, makeup water, chemical feed water between the mechanical room and the prior location of the tower, including the removal of the tower header. o Dumpster rental and disposal of demolished piping and old tower components that have been replaced. o Coring and cutting of walls and deck to provide penetrations to route the new piping. o Provide new stainless steel replacement piping for the demolished PVC GWS&R, makeup water, chemical feed water piping, including associated hangers, pipe stands and supports. o Pressure testing of new piping. o Insulation of replacement piping with fiberglass insulation with all service jacket and PVC fitting covers. Exterior piping to be jacketed with aluminum. o Flashing of wall at piping penetrations. o System fill for the glycol piping with existing staged glycol solution. o Post installation hydronic balancing to pre-test readings. o One-year warranty on newly installed mechanical system. o Closeout documents - as-built drawing, hydronic balancing reports, warranty letter. o To provide replacement propylene glycol solution and disposal of the existing propylene glycol solution. o To provide pan water silencers sound improvement option including submittal data on performance. o Include ladders and platform option Concrete Pad and Sound Attenuation Wall o Demo existing parking lot and sidewalk as shown on plans. o Infill opening with CMU as shown on plans. o Pour new concrete footings, and concrete pad as shown on plans. o Install new screen wall as shown on plans. Bids must say how many days removal and installation will take for the base bid. Hours of operation are Monday - Friday 7am - 5pm. Work is to be performed during regular business hours with work being done in sections to allow public access.