?What is the recommended minimum spacing when two outdoor air-to-water heat pumps are installed with their air intake sides facing each other?
A. ?18 inches
B. ?2 feet
C. ?4 feet
D. ?6 feet
Answer: B
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Answer the following statement true (T) or false (F)
Welds with only slight oxide layers are better for multiple passes.
Answer the following statement true (T) or false (F)
Technician A says some manufacturers recommend head bolts going into a coolant passage be sealed with liquid thread sealant. Technician B says RTV stands for right torque value. Who is correct?
A. Technician A B. Technician B C. Both technicians D. Neither technician
____________________ on heating appliances are basically thermostats that open when an unsafe condition exists in the furnace, such as high furnace temperatures.
Fill in the blank(s) with the appropriate word(s).