| 摘要 |
A manually and automatically operable four-terminal zone thermostat for use with automatic damper means when thermostatic means are required to operate fuel control means of a heating/cooling device and motor means rotating said damper means. The thermostat has a four-terminal switch operable by a heat sensitive bimetal spring; said spring operating the switch to energize and deenergize said fuel control means and motor means in accordance with temperature requirements of environment which said thermostat monitors.
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