Appendix A - Owners Criteria and Narrative Scope of Work

Owner’s Criteria and Narrative Scope of Work
HVAC Water Treatment Services

1.       PURPOSE
         The DeKalb County School District (DCSD) is seeking bids from qualified vendors to provide HVAC Water
         Treatment Services. This shall include, but not be limited to, those listed in the scope of work and
         specifications. The specification and scope of work listed and described in the body of this Invitation to Bid
         (ITB) establishes the minimum requirements for HVAC Contractor. It is the intent of the District to award to
         the most responsive and responsible contractor.
2.       GENERAL OVERVIEW/SCOPE OF WORK

The Contractor shall:
    1. Provide monthly on-site service to include a wet analysis of the towers, chill and hot water loops. Current
       conditions and actions taken shall be documented on an Electronic Workbook (EWB) which is electronically
       generated and distributed to all concerned personnel for review. Written reports shall also be left on site to
       verify service.
     2. Provide all control and feed equipment and additional equipment to replace units that are no longer functioning
        to complete the automatic function of the tower bleed for maintaining proper control of total dissolved solids
        and feed of the corrosion and deposit inhibitor and biocide for controlling and maintaining a safe background
        count of bacteria.
     3. The Contractor shall specify if the HVAC water treatment will be chemical treatment or Ultra Violet water
        treatment.
SERVICE PROGRAMS

     1. Seasonal Service: Locations where one or more units are required to provide service during one season, but
        none is required to provide service at any other time. The DCSD’s Manager of Facilities and Maintenance or
        his designee will specify the seasonal start – up and ending dates appropriate for each unit.
     2. Year Round Service: Locations where at least one (1) piece of equipment is expected to be in service during
        the heating and cooling seasons, respectively.
     3. Automatic Chemical Injection Equipment and Appurtenances
         Contractor shall install appropriate automatic chemical injection equipment at each service location, together
         with all hoses, tanks, containment vessels and related appurtenances required to accomplish the required
         water treatment. The equipment shall remain the property of the Contractor. Contractor shall be responsible
         for the satisfactory performance of the equipment and shall keep it in good repair, even replacing the entire
         equipment to avoid interruption of service. Contractor shall perform this service at no extra charge to DCSD.
         Automatic chemical injection equipment shall be capable of suspending operation when utilization equipment
         operation is not required (e.g. at times when a facility employing chillers and cooling towers does not utilize
         night temperature set-up while unoccupied).

     4. Upon notification by the DCSD Manager of Facilities and Maintenance or his designee, the Contractor shall
        remove all equipment supplied at each service location at the end of the contract. Prior to commencement of
        work, Contractor shall tour each service location in the company of the DCSD’s Manager of Facilities and
        Maintenance or his designee to describe methods that are to be employed to provide appropriate treatment
        at each service location.
     5. UV Light System
         Each bidder is encouraged to use a UV light system that is comparable to the UVOX system in place of the
         chemical water treatment.


ITB 21-752-020 HVAC Water Treatment Services
January 28, 2021
         Unless otherwise specified, manufacturer’s names, trade names, brand names, information and/or catalog
         numbers listed herein are intended only to identify the quality level desired. They are not intended to limit
         competition. The bidder may offer any equivalent product that meets or exceeds the specification. If bids are
         based on equivalent products, the bidder shall indicate on the bid form the alternate manufacturer’s name and
         catalog number and shall include complete descriptive literature and/or specifications along with proof that
         the proposed equivalent either meets or exceeds this specification. The DCSD reserves the right to be the
         sole judge of what is equal and acceptable. If bidder fails to name a substitute, he shall furnish goods, identical
         to the bid specifications.
TRAINING

         The DCSD personnel assigned to the project shall be trained by the Contractor to take samples and perform
         periodic tests to confirm the efficacy of the treatment process. Contractor shall provide data sheets on which
         test results shall be recorded. Contractor shall purchase all instruments, test kits and any other equipment
         required for the successful performance of those tests. This shall be done at no cost to DCSD. Periodic
         calibration of the test equipment shall be performed by the Contractor at no charge to DCSD. Contractor shall
         define warning limits and direct the DCSD’s Manager of Facilities and Maintenance or his designee to place
         a call for service whenever these limits violated, Contractor shall respond to the call at no charge to DCSD.

Upon notification each bidder must visit the job site with a representative from the Maintenance or Facility Department.
At this time, each contractor will be informed of what the project is and what the problems are. It then will be the
contractor’s responsibility to develop a scope of work in writing of how the project will be completed and a “not to
exceed” cost for labor and equipment, using the cost that was awarded. Also, all materials that will be required must
be listed with the actual prices paid plus a percentage markup not to exceed 15%.




ITB 21-752-020 HVAC Water Treatment Services
January 28, 2021