The most important consideration when installing a unit with an air-cooled condenser is:
A) Installing the pad foundation below the frost line.
B) Ensuring adequate airflow.
C) Making the installation aesthetically pleasing.
D) Leveling the pad.
Question 2
The crankcase heater protects the compressor on startup by:
A) Providing an extra heat source, making the compressor's job easier.
B) Keeping the oil warm so that it does not become too thick to lubricate properly.
C) Drying out any water in the oil.
D) Vaporizing any liquid refrigerant that may enter the compressor during the OFF-cycle.
A structural gene as a transcriptional unit
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