Specifications include, but are not limited to: A. The TAB personnel shall check, adjust, and balance the components of the air conditioning system to achieve the optimum noise, temperature and airflow results in the conditioned spaces of the building while maintaining efficient and economical operation. This shall be performed after all components are installed and operating as provided in the contract documents. It is the responsibility of the Mechanical Contractor to place the equipment into service. B. The TAB firm personnel on the project shall act as the liaison between the Owner, Architect and Construction manager. The following observations and tests shall be performed by the TAB firm: 1. Consult with the Architect and his consultants during the design phase to address matters affecting the work of this section. 2. During construction, review all HVAC submittals such as control diagrams, air handling devices, etc., that pertain to commissioning work and the ability to balance the system 3. Allow for a fixed number of trips to the project site, over and above those required for testing and balancing for inspection of installation of the mechanical piping systems, sheet metal work, temperature controls and other components of the HVAC system during construction. These inspections shall be made prior and/or at the above the ceiling inspection. Commentary shall be provided to the Owner of each observation. C. Shall calculate and size new pulleys and belts for all belt driven equipment. D. During the balancing process, as abnormalities and malfunctions of equipment or components are discovered by the TAB personnel, the Architect shall be advised in writing so that the condition can be corrected by the Mechanical Contractor. The written document must be understandable and legible. Data from malfunctioning equipment shall not be recorded in the Final TAB Report. The TAB firm shall not instruct or direct the contractor in any of the work, but will make such reports as necessary to the Owner. E. Shall change speed of direct drive units to proper speed to bring units to design criteria. Report actual speed at fan (low/medium/high). F. Shall plug all test holes. G. Examination: 1. Prior to commencing the testing adjusting and balancing of environmental system(s), verify the following conditions: a. Systems are started and operating in a safe and normal condition. b. Verify no existing airflow blockages/obstructions are present. c. Verify condensate drains are properly connected and functioning. d. Verify air handling unit and components are properly sealed. e. Temperature control systems are installed, complete, and operable. f. Automatic and manual dampers are operable and fully open. g. Thermal overload protection is in place for fans, pumps, chillers, and other equipment. h. Start up air filters are removed i. Final filters are clean and properly installed. j. Duct and fan systems are clean. k. Fans are rotating correctly. l. Fire and volume dampers are in place and open. m. Air coil fins are cleaned and combed. n. Access doors are closed and duct end caps are in place. o. Air outlets are installed and connected. p. Hydronic systems are pressure tested, flushed, filled, and properly vented. q. Start-up/construction strainers have been removed and all permanent strainers are clean and in place. r. Gauges and/or test ports are properly located for balancing. s. Service and balance valves are fully open. 2. If deficiencies are evident, submit Deficiency Report to Architect. Do not begin testing, adjusting, and balancing of environmental system until deficiencies have been remedied. H. Adjusting: 1. Recorded data shall represent actual measured or observed conditions. 2. Permanently mark setting of valves, dampers, and other adjustment devices allowing for settings to be restored. Set and lock memory stops. 3. Leave systems in proper working order, replacing belt guards, closing access doors, closing doors to electrical switch boxes, and restoring thermostats to specified settings
