If the condenser split of a unit is supposed to be 30° what is the head pressure of an R404A unit supposed to be if the ambient air at the condenser is 84°?
a. 210 psig b. 240 psig c. 270 psig d. 290 psig
d. 290 psig
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Concrete formwork must be properly prepared so it will not _____.
a. blow out b. leak c. settle d. implode
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The coil that serves the inside of the house in a heat pump is known as the ____________________.
Fill in the blank(s) with the appropriate word(s).
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Technician A says that one heater hose should be hot and the other hose cool if the heater is functioning okay. Technician B says that both hoses should be hot to the touch. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
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For each pair of functions in Figure E-7 provide the values of the constants in 
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