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HomeMy WebLinkAboutAddendum 2 - BID - 10163 EPIC Ice Chiller Replacement Addendum # 2 10163 EPIC Ice Chiller Replacement ADDENDUM NO. 2 Description of ITB 10163 EPIC Ice Chiller Replacement ITB DUE DATE: 3:00 PM (Mountain Time) June 10, 2025 To all prospective Bidders under the Invitation to Bid documents described above, the following changes/additions are hereby made and detailed in the following sections of this addendum: Exhibit 1 – Question and Answer Please contact Adam Hill, Senior Buyer, at 970-221-6777 or adhill@fcgov.com with any questions regarding this addendum. RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN STATEMENT ENCLOSED WITH THE ITB STATING THAT THIS ADDENDUM HAS BEEN RECEIVED. nd Floor 970.221.6775 970.221.6707 fcgov.com/purchasing Addendum # 2 10163 EPIC Ice Chiller Replacement EXHIBIT 1 – Question and Answer 1. The specifications show shell and tube heat exchangers with a 1,500-pound ammonia charge. This is how it has been done in the past, but currently we are selling ultra-low charge ammonia chiller skids with plate and frame heat exchangers, and all components utilizing speed drives. These new chiller skids hold less than 300 lbs of ammonia. This is not only more efficient but also utilizes less stringent code requirements for the mechanical room. Would the City be willing to consider this option over the older obsolete design listed in the bid? Response: Plate and frame versus Shell and Tube was reviewed with the owner during design. The shell and tube option was selected and the contractor should proceed in this direction. 2. The listed skids are three (3) separate skids for the compressors, pumps, and heat recovery system. We build single skids that contain all of these components as a single package. This takes up less room, is cheaper and faster to install. Would the City consider a single package? Response: No, the City worked with the design team to provide a “stick-built” option for increased equipment access and ease of maintenance. 3. The specifications also show using glycol as the secondary refrigerant for the heat and cold floors. While this is used in ice rinks, it requires larger pumps, which will use more electricity. Glycol is also more expensive, and a less efficient secondary refrigerant than calcium chloride. Would the City consider utilizing calcium chloride in lieu of glycol? Response: No, the City opted for glycol to avoid certain properties and maintenance requirements of calcium chloride. 4. The project scope includes every aspect of the installation. Would the City consider splitting the job into smaller portions, such as demolition/construction, the refrigeration system, and the pool heat system? Response: No, the project will be constructed as a whole.