| 6.6202.8a
Evaluate existing fans, motors, and ventilation system | Control strategy will be determined (e.g., manually adjusted motor-mounted speed control, manually adjusted remote speed control, static pressure sensor control) | Ensure existing ventilation system is compatible with electrically commutated motor (ECM) operation |
| 6.6202.8b
Check for presence of asbestos-containing materials (ACMs) | Potential ACMs will be handled in accordance with SWS 2.0110.2 Potential Asbestos-Containing Materials | Ensure safe work environment |
| 6.6202.8c
Remove and replace existing fan with ECM fan | Existing fan will be removed and replaced with ECM fan, installed in accordance with manufacturer specifications | Ensure proper operation of ECM fan |
| 6.6202.8d
Install required sensors to implement ECM control strategy (for sensor controlled strategies) | Feedback sensors will be installed in accordance with manufacturer specifications at locations that will optimize chosen control strategy Feedback sensors will be wired to ECM in accordance with manufacturer specifications | Ensure sensors are installed to optimize ECM operation |
| 6.6202.8e
Install required manual controls to implement ECM control strategy (for sensor and/or manual controlled strategies) | Speed controls will be installed in accordance with manufacturer specifications at a location optimized for ease of continued operation | Ensure manual controls are installed to optimize ECM operation, and for ease of installer and continuous operation |
| 6.6202.8f
Restore power supply to variable frequency drive, and verify operation of ECM and fan | Power supply will be restored ECM will be shown to be capable of operating the fan ECM will be shown to be capable of receiving sensor signals, when applicable | Ensure that ECM is ready for setup |
| 6.6202.8g
Initial setup of ECM | ECM parameters will be set up to accept feedback from sensors dependent upon chosen control strategy System will be optimized to ensure targeted design ventilation rates at the lowest possible speed setting | Achieve targeted design ventilation requirements with reduced electrical energy use |
