| 6.6201.4a
Validate air distribution system installation | System will be checked for existence of specified system components | Confirm installed system Familiarize with system components Verify system readiness for testing |
| 6.6201.4b
Testing equipment selection | Measurement equipment will be selected so that design value will be within the accurate range of the measuring device Equipment will be capable of accurately measuring +/- 10% in general case If design flow is less than 100 cubic feet per minute (
CFM
CFM
Cubic feet per minute
), equipment will be capable of accurately measuring down to 10
CFM
CFM
Cubic feet per minute
(+/- 5%) Static pressures will be measured using manometers capable of measuring +/- 1 pascal Measurement equipment will be calibrated and field checked in accordance with manufacturer recommendations | Ensure accurate measurements of ventilation rates |
| 6.6201.4c
Test main fan or air handler unit | Equipment testing will check for: - Proper operation (programmed schedule/sequence of operation)
- Proper rotation
- Filter condition
- Total flow at fan
Air flows will be measured in accordance with
ANSI
ANSI
American National Standards Institute, www.ansi.org
/
ACCA
ACCA
Air Conditioning Contractors of America, www.acca.org
Standard 5 or
ANSI
ANSI
American National Standards Institute, www.ansi.org
/
ASHRAE
ASHRAE
American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org
Standard 111; all measured values will be recorded and compared against design specifications Fan flow will be adjusted to meet design specification | Verify performance of air handler system |
| 6.6201.4d
Measure air flow and static pressure at terminals | Air flow and static pressure will be measured and recorded Measurements will be taken with terminals as found, with no adjustments made to the grille fins All measured values will be recorded and compared against design specifications The terminal with the lowest flow will be identified and recorded | Verify distribution system Identify potential adjustments Establish baseline air flow rates |
| 6.6201.4e
Adjustment of system | Adjustments will be made to fan speed, dampers, and registers until design specifications are met | Balance system utilizing least resistance and energy |
| 6.6201.4f
Final balance | Final air flow and/or pressure will be measured, confirmed, and recorded at fan and terminals | Provide acceptable thermal comfort, energy efficiency, and indoor air quality |
| 6.6201.4g
Occupant/property manager education | Occupant/property manager will be: - Instructed on proper operation and maintenance procedures
- Educated on value and need for recommissioning requirements
Property manager will complete a 30-hour
OSHA
OSHA
U.S. Occupational Safety and Health Administration, www.osha.gov
safety education course | Ensure continued operation of equipment at design performance levels |
