Basic of HVAC controls – พื้นฐานการควบคุมสำหรับระบบปรับอากาศ

HVAC control system includes five components as follow:
1. a controoled variable
2. a sensor/ transmitter
3. a controller
4. a controoled devices, and
5. a control medea.

    Related notes:

    Sensor and transmitter


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