How can a technician verify that a condenser and evaporator are an AHRI match?
A) Ask the salesman at the parts counter.
B) Check them out on the AHRI web site.
C) Check with the EPA.
D) The correct matches are printed on the unit nameplate.
B
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Why are centrifugal pumps used more often than positive displacement pumps?
A) They are more effective B) They are less expensive C) They require more space D) They are more complex to operate
When the piston reaches the bottom of its stroke, it is called ____________________.
Fill in the blank(s) with the appropriate word(s).
79.06 รท 7.4 =
A) 10.68 B) 11.69 C) 10.69 D) 11.68
On systems operating with thermostatic expansion valves, evaporator superheat in the range of 8 to 12 degrees is considered well within the desired operating range.
Answer the following statement true (T) or false (F)