What access location should you use when recovering from an air cooled system with its condenser several feet above the evaporator?

What access location should you use when recovering from an air cooled system with its condenser several feet above the evaporator?

What access location should you use when recovering from an air cooled system with its condenser several feet above the evaporator? Suction line.

Where should you remove the refrigerant in a system that has a condenser below the receiver?

Answer: When the condenser is below the receiver. If the condenser outlet is lower than the receiver tank outlet, the refrigerant is removed from the condenser outlet.

What must be done to the refrigerant that is vented off the top when filling a charging cylinder?

When filling a charging cylinder with a regulated refrigerant; The refrigerant vapor that is vented off the top of the cylinder must be recovered. If after installing a fitting for the purpose of recovering the appliances refrigerant, you find that the system pressure is 0 psig; Recovery is not required.

When charging an R 410A system that uses a water cooled condenser you must charge with vapor to a pressure of at least before switching to liquid charging?

77 Cards in this Set

heat pumps that use R- 410A should be leak check with	pressurized nitrogen
When charging an R12 refrigeration system that uses a water-cooled condenser you must first charged with Vapor to a pressure of at least ______before switching to liquid charging	35 PSIG

What is the primary advantage of a remote air-cooled condenser on an ice machine quizlet?

What is the primary advantage of a remote air-cooled condenser on an ice machine? The heat generated by the ice machine is expelled outside instead of into the kitchen.

When should the refrigerant be removed from the condenser outlet?

Refrigerant should be removed from the condenser outlet if the condenser is below the receiver. In a building that has an air-cooled condenser on the roof and an evaporator on the first floor, recovery should begin from the liquid line entering the evaporator.

What is the state of the refrigerant entering the compressor of a refrigeration system?

Circulating refrigerant enters the compressor in the thermodynamic state known as a saturated vapor and is compressed to a higher pressure, resulting in a higher temperature as well.

What is a process stub?

Process stub means a length of tubing that provides access to the refrigerant inside a small appliance or room air conditioner and that can be resealed at the conclusion of repair or service.

When charging an R-410A system that uses a water cooled condenser?

What should systems that have been retrofitted from R-22 to R-407c be leak checked with? When charging an R-410a system that uses a water-cooled condenser, you must first charge with vapor to at least what pressure before switching to liquid charging.

How to recover refrigerant from a vapor phase?

Recovering refrigerant from a system in vapor phase will minimize loss of: Oil 14 With an air-cooled condenser on the roof of a building and the evaporator on the first floor, recovery should first occur: From the liquid line entering the evaporator 15

Where was refrigerant stored before replacing the condenser coil?

Prior to replacing the condenser coil in a high pressure system, the refrigerant was recovered and stored in a refillable cylinder. The refrigerant: __________.

What should be done before transferring refrigerant to an empty cylinder?

What should be done before transferring refrigerant to an empty cylinder The cylinder should be evacuated With an air cooled condenser on the roof of the building and evaporator on the first floor recovery should first occur From the liquid line entering the evaporator What is the primary water source for a recovery unit condensing coil

When to evacuate CFC refrigerants to atmospheric pressure?

Appliances containing CFC refrigerants can be evacuated to atmospheric pressure when Leaks in the appliance make evacuation to the prescribed level unattainable