What is the primary purpose of the low-pressure control in a heat pump?
a. Cycles compressor off on low loads
b. Prevents refrigerant floodback
c. Protects against loss of charge
d. Prevents outdoor coil icing
Question 2
Which of the following statements is correct?
a. Electronic defrost controls use logic to determine the need for a defrost cycle.
b. Mechanical defrost controls are significantly cheaper than electronic models.
c. A defrost cycle starts as soon as the coil temperature is below the setpoint.
d. Mechanical defrost controls base defrost cycles on time alone.
Primary steps in fibrinolysis
Negative feedback control of a regulated variable.
Causes of Error in Blood Pressure Readings
A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ...
This exhaust manifold has a heat shield to help retain the heat and help reduce exhaust emissions.