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.
Select of Primary and Secondary Procedures
Neural control of hormone release from the hypothalamus.
Block Diagram of a Dual-stage Pressure System for Dual-Stage Pressure Production of Nitric Acid Seme
With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ...
The fuel pickup tube is part of the fuel sender and pump assembly.
Pressure is a result of the atmosphere’s mass.