A residential HVACR communicating control system includes (you may select more than one):
A) Communicating equipment control boards.
B) A communicating thermostat or controller.
C) A dedicated wireless router made specifically for HVACR.
D) A satellite uplink.
A, B
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a. Lubricate the shaft. b. Open the valve. c. Close the valve. d. Align the flanges.
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The job description of the safety and health manager is simple.