The request of staff for City Council is to review and consider for approval the attached do not exceed proposal in the amount of $85,000 from Air Mechanical and Service Corporation (AMSCO), for the replacement of one (1) 25-ton split system HVAC condensing unit.  The proposal contains the same pricing, terms, and conditions as the City’s existing HVAC Maintenance Contract with AMSCO ITB No. 23-004.  

Subsequent to the 2023 PWOC HVAC System Evaluation report performed by Volt Air Consulting Engineers, it was concluded that the Air Handling Unit-2 and Condensing Unit-2 systems are approaching the end of their useful life as defined by ASHRAE and manufacturer’s literature for the anticipated life of the equipment.  The equipment is in in poor condition and should be considered for replacement.  The executive summary of recommendations by category are as follows:     

1.     The upgrade of the existing direct digital controls (DDC) system.  This system upgrade converted the HVAC system into a total automated system where one central computer can control system operations of components, collect data for trend implementation, monitor system for failures, and submit automated notifications of the failures for the appropriate remediation to the system.  

2.     The replacement of the existing 25-ton split system condensing unit-2, included piping, valves, and support systems. 

3.     Replacement of electrical breakers associated with unit system two.

4.     The replacement of air handling unit-2, including ductwork and damper in the mechanical room.