| 摘要 |
A blower override system and control for forced air systems such as heating or cooling systems in which an override relay starts the blower to circulate the warmed or cooled air when the heating or cooling element turned on. When the heating or cooling is turned off, the blower is thereupon allowed to continue by the override unit to function for a timed interval by a time delay relay. The unit is in a control box and ready to attach to existing control structures for forced air systems.
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