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.
Lower extremity blood pressure cuff
A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter.
The fuel system should hold pressure if the system is leak free.
An ob/ob mouse and a control mouse.
Mechanisms of Heat Transfer
Apply oil or lotion to the entire leg with effleurage. Use light to medium pressure to warm ...