ANSI-AHRI-440-2008 pdf download Performance Rating of Room Fan-Coils
3.6 Published Rating. A statement of the assigned values of those performance characteristics, under stated Rating Conditions, by which a unit may be chosen to fit its application. These values apply to all units of like nominal size and type (identification) produced by the same manufacturer. The term Published Rating includes the rating of all performance characteristics shown on the unit or published in specifications, advertising or other literature controlled by the manufacturer, at stated Rating Conditions.
3.6.1 Application Rating. A rating based on tests performed at application Rating Conditions (other than Standard Rating Conditions).
3.6.2 Standard Rating. A rating based on tests performed at Standard Rating Conditions.
3.7 Rating Conditions. Any set of operating conditions under which a single level of performance results and which causes only that level of performance to occur.
3.7.1 Standard Rating Conditions. Rating Conditions used as the basis of comparison for performance characteristics.
3.8 Room Fan-Coil (cooling, heating, or cooling and heating). A factory-made assembly which provides the functions of cooling, heating, or cooling and heating, but which does not include the source of cooling or heating. This device is designed for free-delivery of air into a room, but may be applied with minimal duct work having a static resistance generally not exceeding 0.25 in H 2 O [0.062 kPa]. These devices may be designed for furred-in application, or with an enclosure for application within the conditioned space.
3.8.1 Free Delivery Units. Free Delivery Units are Room Fan-Coils furnished with both integral filters and grilles on the unit.
3.8.2 Furred-in Units. Furred-in Units are Room Fan-Coils intended to be installed above a ceiling, within a side wall, or with a discharge grille. It may or may not have provisions for a filter.
3.9 Room Fan-Coil Motors.
3.9.1 Shaded Pole Motor. Single phase AC motor with offset start winding and no capacitor.
3.9.2 PSC Motor. Single phase AC motor with offset start winding with capacitor.
3.9.3 EC Motor. AC electrically commutated permanent magnet DC motor.
3.10 “Shall” or “Should,” “Shall” or “should” shall be interpreted as follows:
3.10.1 Shall. Where “shall” or “shall not” is used for a provision specified, that provision is mandatory if compliance with the standard is claimed.