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The Honeywell Q539A1014/U switching subbase provides system and fan switching and mounting for T87F thermostats. It features letter-coded screw terminals for electrical connections and a cooling anticipator. This subbase offers a wide range of switching functions for most heating, cooling, or heating-cooling applications. It can be mounted directly on a wall or on an outlet box.
Provides system and fan switching for T87F thermostats with letter-coded screw terminals.
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