The wiring connection between the outdoor and indoor unit typically has four wires. One wire carries power, a second wire carries low voltage communication while a third wire carries both line voltage power and low voltage communication. A fourth wire is utilized for ground
Indicate whether the statement is true or false
TRUE
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Which of the following statements is true?
a. Entrained air is room air that is moving and mixing with air as it leaves a supply duct terminal. b. Primary air is also known as induced air. c. Secondary air is the air delivered to the room from the supply duct. d. The spread and drop of a diffuser should always be equal.
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Explain the difference between annealling and tempering
What will be an ideal response?
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Modern medicine is credited with lowering the cost of healthcare
A. True B. False
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This device is formed by adjoining two dissimilar metals
A) thermocouple B) sequencer C) RTD D) thermistor
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