Renovation of a municipal facility in South Portland, Maine. Completed plans call for the renovation of a municipal facility.

Commercial Rooftop Air-Conditioning Unit Replacements Question Deadline 09/23/2025 All questions shall be directed, in writing, to the Purchasing Agent at mfitzgerald@southportland.gov and be received at least five business days prior to the bid opening date. Questions received after this time will not be addressed. Responses from the City that substantially alter this bid will be issued in the form of a written addendum to all bid holders registered in the Purchasing Office. This scope of work consist of: 1. Removal of the existing units 2. Replace with the following two (2) units: Item A1: 1 - Tag(s): RTU-3 20 Ton unit - 5,800cfm airflow 100% Exhaust fan - 3 h.p. with Statitrac building pressure control 10 h.p. Forward Curve Supply fan Item A2: 1 - Tag(s): RTU-4 30 Ton unit - 10,800cfm airflow 100% Exhaust fan - 5 h.p. with Statitrac building pressure control 15 h.p. Forward Curve Supply fan Specified Unit: Trane IntelliPak Packaged gas/electric unit IntelliPak replacement unit with hinged access doors R-454B Refrigerant 200/60/3 4:1 Modulating Gas Heat (stainless steel heat exchanger) - 500MBH input MERV 8 High efficiency throwaway filters - 1 SET 0-100% Economizer - Economizer control w/ comparative enthalpy Ultra Low Leak Dampers VAV DTC Supply and Relief/Return VFD w Bypass Unit Mounted Disconnect w/ High Fault SCCR w/ powered convenience outlet Variable Speed Compressors Standard Aluminum Condenser Coil Stainless Steel Drain Pan w Grease Lines Trane BACnet Communication Spring Isolators for fans