Hydronic Balancing shall include as a minimum all devices for which a GPM is indicated in the plans, schedules or specifications. Air Balancing include as a minimum all devices for which a CFM is indicated in the plans, schedules or specifications. Testing, Adjusting and Balancing Reports, as detailed in part 3. The Contractor shall obtain the services of an independent (third party) Test, Adjust and Balance (TAB) Contractor. Air balance and water balance shall be done by the same Test and Balance Contractor. Testing and balancing shall be performed in accordance with standards of either AABC ("National Standards for Field Measurement and Instrumentation - Total System Balance", Current Volume and Supplements,) or NEBB ("Procedural Standards for Testing, Adjusting and Balancing of Environmental Systems"), and ASHRAE Standard 111-1988. The TAB supervisor shall be currently certified under the requirements of either NEBB or AABC, and shall directly supervise the project TAB activities. Supervisors shall be certified in all areas germane to the project’s work scope: air, hydronic, fume hood and sound/vibration testing. Sound and vibration testing may be subcontracted to other qualified firms as approved by the Engineer. Test equipment accuracies shall be no less than recommended by NEBB or AABC; provide higher accuracy test equipment if dictated by project needs. Test equipment shall have been calibrated within the time intervals recommended by NEBB or AABC, but in all cases shall have been calibrated within the last year. The following are the only acceptable balancing companies: Absolut Balance Air Flow Testing Enviro-Aire/ Total Balance, Inc. Provide the following for approval: Test instrument list including the following information: Instrument type and accuracy Instrument manufacturer and model number Instrument serial number Copy of current calibration certificate Proof of TAB supervisor certification. Resume of the TAB supervisor and of all TAB technicians proposed for the project. Proposed reporting forms for each TAB procedure.
Hydronic Balancing shall include as a minimum all devices for which a GPM is indicated in the plans, schedules or specifications. Air Balancing include as a minimum all devices for which a CFM is indicated in the plans, schedules or specifications. Testing, Adjusting and Balancing Reports, as detailed in part 3. The Contractor shall obtain the services of an independent (third party) Test, Adjust and Balance (TAB) Contractor. Air balance and water balance shall be done by the same Test and Balance Contractor. Testing and balancing shall be performed in accordance with standards of either AABC ("National Standards for Field Measurement and Instrumentation - Total System Balance", Current Volume and Supplements,) or NEBB ("Procedural Standards for Testing, Adjusting and Balancing of Environmental Systems"), and ASHRAE Standard 111-1988. The TAB supervisor shall be currently certified under the requirements of either NEBB or AABC, and shall directly supervise the project TAB activities. Supervisors shall be certified in all areas germane to the project’s work scope: air, hydronic, fume hood and sound/vibration testing. Sound and vibration testing may be subcontracted to other qualified firms as approved by the Engineer. Test equipment accuracies shall be no less than recommended by NEBB or AABC; provide higher accuracy test equipment if dictated by project needs. Test equipment shall have been calibrated within the time intervals recommended by NEBB or AABC, but in all cases shall have been calibrated within the last year. The following are the only acceptable balancing companies: Absolut Balance Air Flow Testing Enviro-Aire/ Total Balance, Inc. Provide the following for approval: Test instrument list including the following information: Instrument type and accuracy Instrument manufacturer and model number Instrument serial number Copy of current calibration certificate Proof of TAB supervisor certification. Resume of the TAB supervisor and of all TAB technicians proposed for the project. Proposed reporting forms for each TAB procedure.
MS230593.docx