What valve must be front seated while the air conditioning is running in order to perform a low side pump down?
A. Discharge check valve
B. Suction service valve
C. The discharge check valve
D. The receiver outlet valve
Answer: D
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Brown or tan spots appearing on leaves, petioles, and stems may signal ____. As spots mature, a
concentric ring pattern can be seen.
a. root and/or crown rot c. an anthracnose infection b. gray mold d. powdery mildew
In the diagram, determine ?1 in degrees.
Fill in the blank(s) with the appropriate word(s).
In ____________________ starters, the control functions are performed by semiconductors.
Fill in the blank(s) with the appropriate word(s).
When the thermostat calls for boiler operation, the relief valve dribbles water until the water reaches a stable temperature. Then the dribbles stop. What is the most likely cause of the problem?
What will be an ideal response?