Before starting the unit:

A) Purge the system with nitrogen. B) Check the low- and high-side pressures.
C) Check the power supply with the unit off. D) Remove the refrigerant.


C

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Answer the following statements true (T) or false (F)

1. From the user's viewpoint, the difference between MC 15 and KD 15 is generally ignored. 2. In calculating the board foot measure, we must use the actual dimensions of lumber, not its nominal dimensions. 3. A lumber grade stamp must include information on the cross-sectional dimensions of lumber. 4. A lumber grade stamp must include the mill identification number.

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Troubleshooting A/C unit with TEV (10 SEER or less) - Diagnosis: Inefficient compressor Verify by pulling it into a vacuum

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Two different scales are used in measuring temperatures. These scales are called Fahrenheit (F) and ____________________ (C).

Fill in the blank(s) with the appropriate word(s).

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Manure can be used on horse pastures to increase the nitrogen level in the soil

Indicate whether the statement is true or false.

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