Common use of PROCEDURE BY OWNER’S TAB SERVICES CONTRACTOR Clause in Contracts

PROCEDURE BY OWNER’S TAB SERVICES CONTRACTOR. 2.6.1. Air Handling and Distribution Systems 2.6.1.1. Adjust air handling and distribution systems to provide required or design supply, return, and exhaust air quantities at site altitude. 2.6.1.2. Make air quantity measurements in ducts by Pitot tube traverse of entire cross sectional area of duct. 2.6.1.3. The total air volume handled by the system shall be determined by means of a Pitot tube and draft gauge. The total air delivered by each duct shall be measured by Pitot tube traverses. 2.6.1.4. The average velocity in the duct shall be determined by velocity readings which are taken in the center of equally divided areas in the cross section of the duct. The number of areas in which velocity readings are to be taken is determined by the size of the duct, based on a maximum size of equally divided areas of 8 inches. 2.6.1.5. Measure air quantities at air inlets and outlets. The volume dampers, pressure controllers, outlets and other devices shall be adjusted so the air volumes will be as shown on the drawings. 2.6.1.6. Adjust distribution system to obtain uniform space temperatures free from objectionable drafts and noise. 2.6.1.7. Use volume control devices to regulate air quantities only to the extent that adjustments do not create objectionable air motion or sound levels. Effect volume control by duct internal devices such as dampers and splitters. 2.6.1.8. Vary total system air quantities by adjustment of fan speeds. Provide drive changes required. Vary branch air quantities by damper regulation. 2.6.1.9. Provide system schematic with required and actual air quantities recorded at each outlet or inlet. 2.6.1.10. Measure air static pressure conditions on air supply units, including filter and coil pressure drops, and total pressure across the fan. Make allowances for 50 percent loading of filters. 2.6.1.11. Adjust outside air automatic dampers, outside air, return air, and exhaust dampers for design conditions. 2.6.1.12. Measure temperature conditions across outside air, return air, and exhaust dampers to check leakage. 2.6.1.13. Where modulating dampers are provided, take measurements and balance at extreme conditions. 2.6.1.14. Measure building static pressure and adjust supply, return, and exhaust systems to provide required relationship between each to maintain approximately 0.05 inches positive static pressure near the building entries. 2.6.1.15. On completion of the test the Owner’s TAB Services Contractor shall prepare a typewritten report showing the tested values for inclusion in the Final HVAC and Controls Performance Assurance Report. This report shall include all flows, temperatures, temperature drops, and motors for the plumbing and mechanical systems. The CFM of each supply outlet with corresponding room number shall be included. This report shall include the fan RPM, nameplate data, the voltage and amperage readings of the fan motors, and the fan suction and discharge static pressure.