BGS - Waterbury Chiller Compressor Replacement

Due to security reasons, please contact Reprographer to obtain bid documents This project consists of, but is not limited to, all labor, material and equipment to complete the following: 1. Background: The complex has two (2) Multistack Water-Cooled, MagLev(TM) Chillers that were installed as part of the rebuilding of the complex after hurricane Irene in 2016. The chillers have a capacity of 325 tons with Evaporator: EWT 57F, LWT 42F @ 520 GPM; Condenser EWT 85F and LWT 95F @ 920 GPM. During start up this spring, 3 of the 4 compressors were deemed to be non-functional. 2. Replace the Danfoss Turbocor model TTS400 and TT500 compressors with TTS400 and TTS700 compressors, one (1) each per chiller, total of four (4) compressors. Compressors are 480 Volt, 3 phase. 3. Recover existing R134A refrigerant for reuse after replacing compressors. 4. Provide programming updates for replacing the TT500 compressors with the new TTS700 compressors. 5. Perform a vacuum pull down below 500 microns, and nitrogen purge, at least twice, followed by a vacuum pull down below 500 microns and weigh-in charge of recovered refrigerant. 6. Add new R134A refrigerant as needed to provide a full charge, include price per pound installed on the bid proposal. 7. Provide new hard drives and factory programming and start-up by a factory trained and authorized technician. 8. Work will commence on Chiller Number 2, when Chiller Number 2 is fully operation and in service, work may commence on Chiller Number 1. There will not be a pre -bid meeting for this project.

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Heating, Ventilating, and Air Conditioning (HVAC), Instrumentation and Control for HVAC, HVAC Air Distribution, Central HVAC Equipment.