What should you do if you suspect that an alternative refrigerant had been used in the A/C system and it is not performing properly?

Q: List two types of return air systems commonly found on residential air conditioning systems

A: Return air systems commonly found on residential air conditioning systems

Q: It can be reasonably assumed that a refrigeration system has an adequate refrigerant charge when all…

A: It can be reasonably assumed that a refrigeration system has an adequate refrigerant charge when all…

Q: The bank of tubes at the back of domestic refrigerator is; * O evaporator tubes capillary tubes…

A: Refrigerator has 1. Compressor 2. Evaporator 3. Condenser 4. Expansion valves

Q: Unique characteristics of monoblock air conditioners in comparison to a split air conditioning…

A: Air conditioners are used to maintain the parameters of the air of some specific region. Various…

Q: Which of the following statements about PTC heaters is not true?     Some vehicles have a PTC…

A: Positive Temperature Coefficient (PTC) radiators are self-regulating radiators that run open-loop…

Q: Describe how the system works

A: A hydraulic system is a drive technique in which energy is transferred from an electric motor to…

Q: The compressor stops when the outdoor fan motor is

A: Option a) faulty

Q: Describe four ways in which the heater control valve may be controlled

A: The heater control valve is a part of the heating ventilation, and air conditioning unit (HVAC) used…

Q: Which of the following does not help in collecting results in the mechanical heat pump Select one:…

A: Given Data⇒ Mechanical heat pump

Q: principle of Inverter air conditioner and energy saving.

A: An inverter air conditioner consists of a compressor such that the speed of the compressor can be…

Q: Which part in the mechanical heat pump is used to increase the refrigerant pressure? Select one: a.…

A: Given Data : Mechanical heat pump

Q: If a hot water reheat coil is installed with a two way modulating valve. A. The VAV box can only be…

A: Given :-  If a hot water reheat coil is installed with a two way modulating valve. Select one  A.…

Q: Technician A says that suction lines become very warm during A/C operation. Technician B says that…

A: Suction line:The piping line which connects the outlet of the evaporator(refrigerated space)  to…

Q: Choose the correct answer The suction pressure of a refrigerant should be as low as possible The…

A:

Q: What are the three components that have to operate when a residential air conditioning system is in…

A: Indoor fan, outdoor fan & compressor are the three components that have to operate when a…

Q: 16. Refrigerant: R-22 Required Subcooling: 8 degrees High side pressure: 155 High side temperature:…

A: Disclaimer  Since you have asked multiple question, we will solve the first question for you. If you…

Q: What are some criteria that need to be considered in the selection of a refrigerant? Please choose…

A:

Q: Explain with a neat diagram with all parameters, the components and working of a refrigeration…

A: Refrigeration system is used to cool the space below atmospheric temperature. It works on the…

Q: Which of the following statements is false?     The condenser is normally mounted just in front of…

A: Solution:

Q: The agent acting in between hot body and cold body is a Air conditioner Select one:

A: It is asked if Air conditioner is the agenet that acts between hot body and cold body.

Q: how can a hermetic compressor be tested for efficiency

A: Hermetic compressor: In this type of compressor, the compressor and motor are in same unit. It has…

Q: Which process would best represent the opposite ofexhausting air from a system?A. CoolingB.…

A: Given Data : Exhausting air

Q: Choose the correct answer The discharge pressure of a refrigerant should be as constant as possible…

A:

Q: Safety measures to be observe while using  CO2 in Large Refrigeration Systems

A: Safety measures to be observed while using CO2 in large Refrigeration Systems,  Safety is a major…

Q: Why are the air conditioning units usually placed above head level?

A: Since cold air is emitted from the A/C unit blowers, the unit has to be placed at the top of a room…

Q: Explain the layout and the basic operation of a centralized air conditioning system (or chiller…

A:

Q: Explain in detail the working of chilled water fan coil unit after it receive water from district…

A: Chilled Water Fan Coil Units:  This system of comfort cooling uses a centralized chiller to produce…

Q: If the compressor and condenser fan motor will not operate but the indoor fan motor is operating,…

A: A condenser is a device or unit used to condense a gaseous substance into a liquid state through…

Q: Which of the following components is NOT within the refrigeration cycle? A: Expansion valve B:…

A: To find : Which of the following components is NOT within the refrigeration cycle?

Q: Select the most accurate system from the following, O a. Lamp with on/off switch O b. Room heating…

A: the most accurate system in the above are lamp with on and off because other systems are works with…

Q: Choose correct answer: Usually condenser pressure in refrigeration system is ____________ a. None…

A: A condenser is a component of the refrigeration system in which heat is extracted from the system…

Q: which part of the thermo-acoustic engine is the heat is removed?

A: Ans: option (c) is correct.  Part D is used for heat removed.

Q: • Non-condensable gases and air finding their way into the surface condenser are removed by: a.…

A: First Question: Ejector is the device that is used to remove the non-condensable gases and air from…

Q: Variable refrigerant flow (VRF) systems modulate the volume of refrigerant that is pumped through…

A: VRF is a technology that changes the amount of refrigerant in a system according to the needs of a…

Q: Types of industrial air conditioning systems.

A:

Q: Which one of the following is a CFC refrigerant?

A: Given; Choose the CFC refrigerant for the following;Where,   CFC stands for; Chlorofluorocarbon

Q: How the vapor cycle air conditioning system works?

A:

Q: Describe the process by which moisture is removed from the steam produced in the steam generators.

A:

Q: Which of the following components are common to most automatic control systems for residential split…

A: For residential split air conditioners Thermostat, magnetic starter, contactor are the main…

Q: What type of control would be used to turn a compressor off in the event of a large refrigerant leak

A: Low pressure control system is a type of accessory used in many refrigeration system. This is a type…

Q: What advantage does a capillary tube have over a thermostatic expansion valve?

A: Capillary tube is a basic device used in the science lab for the measurement of the surface tension…

Q: Which component is primarily responsible for the pressure in a cooling system? Select one: a. The…

A: Answer: Option (c) The radiator cap The radiator cap is the component that is primarily responsible…

Q: What recommendation would you suggest for improving the performance of the ground-source heat pump

A: The performance of ground source heat pump can be improved by