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Preventive Maintenance Sustains Good IAQ
Picture Series 6:
Preventive Maintenance Sustains Good IAQ
- Maintain Up-to-Date Building Records
- Establish an Effective PM Program
- Train Your Key Maintenance Employees on IAQ
- Maintain All Equipment on Time
- Keep a Clean Mechanical Room
- Periodically Check Exhaust Air Flows
- Periodically Check Pressure Relationships
- Periodically Check Temperature, Humidity, and CO2
- Periodically Check Supply Air and Outdoor Air Flows
- Make Use of I-BEAM Forms in Your Maintenance Program
- Monitoring IAQ in Occupied Spaces
- Monitoring PM Throughout Building
Periodically Check Supply Air and Outdoor Air Flows
Mouse over the picture above to see messages which are referenced in more detail below.
(Hot Spot over flow hood.)
- Remember...“Supply air and outdoor air flow should be measured directly, where feasible, to obtain an accurate indication of system performance.”
- In this picture, a flow hood is being used to measure the supply air flow from the supply register in a space. Adequate flow is necessary to adequately control thermal conditions, but also to provide outdoor air ventilation to the space.
- For ventilation purposes, measurements are most critical during minimum flow conditions. The supply flow, multiplied by the percent outdoor air, equals the outdoor air flow to the space being serviced. It should be sufficient to service the occupants in the space (e.g. 20 cfm per occupant) according to applicable standards.
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