2024/01/31 Council Agenda Packet

4 surveys and unit costs of building elements for the project.  Parametric costs reflect the level of the 60% design documents, plus appropriate design contingencies to encompass unidentified scope ultimately included in the program.  Assist the City with analyzing scope, schedule, and budget options to stay within the MACC. o 90% Cost Estimate (Pre-Bid Construction Documents level)  Services consisting of development of a probable construction cost from quantity surveys and unit costs of building elements for the project.  Parametric costs reflect the level of the 90% design documents, plus appropriate design contingencies to encompass unidentified scope ultimately included in the program.  Assist the City with analyzing scope, schedule, and budget options to stay within the MACC. 1.2 CONDITIONS OF THE AGREEMENT The City has not prepared a detailed scope for the design phase work to be performed under this contract. The City will provide a scope of work outline to the selected consultant. The selected consultant will enter into a Professional Services Agreement, which will establish a maximum contract amount. The City will authorize some or all of the work elements described above on a task basis. The form of contract used for this project is the City of Everett standard Professional Services Agreement which is included in the Appendix. 1.3 PROJECT 1 – MAIN LIBRARY A. Main Library Design Objective The City of Everett intends to replace the existing HVAC and DDC systems serving the Main Library to reduce system energy use, increase system reliability, and improve occupant health and comfort. The project scope includes replacement of the (6) existing packaged air conditioners with electric heat with (9) variable air volume high efficiency packaged heat pumps, relocation of (1) of the RTU units, installation of supplemental zone heating, and replacement of the existing DDC system with connected wireless thermostats and controls. Design will include a review of system sizing based on revised building occupancy and use, changes to system ducting, and modifications to (1) system with variable air volume zone control. To be included is the design of necessary electrical and structural modifications, and any noise or architectural screening, if required. B. Project Description • Three (3) of the units will be replaced with minimal modification. • One (1) 7.5-ton unit is to be relocated and connected to existing abandoned ducting. • One (1) 80-ton unit is to be divided into (3) smaller units to increase the number of control zones and allow the use of more readily available and easier to service unitary equipment. • One (1) 7.5-ton unit with multiple electric duct heaters is to be divided into (2) smaller units, allowing the removal of the duct heaters and most of the associated roof top ductwork. Small electric wall heaters will be added in 2 locations and interlocked with the cooling system.