Geothermal and HVAC Maintenance and Repair Services for City Hall

Scope of Work: 1. Replace air filters on all units requiring filtration 2. Check that all zones are in correct working order and are functioning as designed. 3. Clean all strainers at each location (heat pumps, bag filters, etc.) and re-install 4. Check to verify the system contains antifreeze which protects the pumps from freezing and what type of antifreeze is used. 5. Determine the control of the high solid content in the cooling water, check the pH level and flush the system to lower the solids and control this in the future through monthly testing of contaminated well fields. 6. Clean evaporative coils 7. Clean wye strainers 8. Adjust motor alignments 9. Adjust or replace contactors 10. Flush entire system by running the system. 11. Examine and clean all strainers and restart system. Flush entire system 12. Establish duct work repairs/upgrades to optimize unit performance. 13. Calibrate thermostats. If calibration cannot be performed, thermostat will need to be replaced. 14. Estimate cost of filter dryer to be installed (Recommended by Huitt-Zollars Report) 15. Ensure all Energy Recovery Units (8 total) are running properly. Be sure that all are marked correctly, running in their assigned and perspective areas, the BMS (Building Management System) is communicating with each unit and provide any testing to the units as necessary. Water testing of the active well fields shall be the responsibility of the contractor. 16. Testing will need to include processes that add corrosion inhibitors, dispersants, and chemical mixtures to the well fields to help mitigate the fouling within the system. Testing will also need to prove that filtration is improving due to the previously mentioned processes.

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