Specification History
| SWS Version | Created | Specification ID | Title | Specification | Objective | Supporting Materials | Rationale | Status |
|---|---|---|---|---|---|---|---|---|
| Version 2020 | 08/14/2020 - 14:27 | 6.0302.2a | Fan selection | Select a fan that: has an electrically commutated motor (ECM) and/or utilizes (VFD) controllers is capable of maintaining a minimum operating static pressure of .25 inches of water column or greater motors 1 horsepower or larger must meet NEMA premium efficiency standards motors less than 1 HP must be rated by the Home Ventilation Institute to satisfy these requirements |
Adequate and efficient fan motor |
Black Line | ||
| Version 2020 | 08/14/2020 - 14:27 | 6.0302.2a | Fan selection | Select a fan that: has an electrically commutated motor (ECM) and/or utilizes (VFD) controllers is capable of maintaining a minimum operating static pressure of .25 inches of water column or greater motors 1 horsepower or larger must meet NEMA premium efficiency standards motors less than 1 HP must be rated by the Home Ventilation Institute to satisfy these requirements |
Adequate and efficient fan motor |
Black Line |