Branch selectors are boxes in heat recovery VRF systems that allow:
A) One refrigerant line to feed a single indoor unit.
B) Multiple refrigerant lines to feed a single indoor unit.
C) One refrigerant line to feed multiple indoor units.
D) Multiple refrigerant lines to feed multiple indoor units.
C
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Sediment pollution results in the loss of _____
a. grass c. fish and other aquatic life b. air d. humans
How many three-input NOR gates are in a 14-pin DIP integrated circuit?
A) two B) five C) four D) three
In fixtures that maintain temperatures at or above 36°F, the coil/saturated suction temperature is dependent
on the _____. a. location of the fixture b. environmental dew point c. desired humidity levels d. amount unit is being opened and closed
If the power to a condensing unit has been turned off for an extended period of time, the _________________________ should be energized first for the recommended time to protect the compressor from liquid floodback.
Fill in the blank(s) with the appropriate word(s).