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R-22 vapor line diameters and lengths are typically specified for a vapor pressure drop that does not exceed 6-7 psi or 6 degress F The primary purpose of using flux when soldering copper or brass parts is to prevent Oxidation The water that results from a defrost cycle of an air to ...

R-22 vapor line diameters and lengths are typically specified for a vapor pressure drop that does not exceed... 6-7 psi or 6°F The primary purpose of using flux when soldering copper or brass parts is to... Prevent oxidation The water that results from a defrost cycle of an air to a...

What is the purpose of the reversing valve on an air-to-air heat pump: It changes the flow of the refrigerant, making the indoor coil the condenser during the winter months On a reversing-valve solenoid, what is connected to the top tube: the compressor discharge line On a reversing-...

R-22 vapor line diameters and lengths are typically specified for a... Vapor pressure drop that does not exceed a 6-7psi or 6 degrees F The primary purpose of using flux when soldering copper or brass parts is... To prevent oxidation The water that results from a defrost cycle of an ...

Mixed refrigerant should They're not easy to reclaim or separate should be labeled and sent to recycling plant can be returned for recycling plant charge a substantial fee for destroying What refrigerant is a HFC R 134 a An azeotrope refrigerant is a mixture of 2 or more refrigeran...

R-22 vapor line diameters and lengths are typically specified for a: Vapor pressure drop that does not exceed 6 - 7 psi or 6°F. The primary purpose of using flux when soldering copper or brass parts is to: Prevent oxidation. The water that results from a defrost cycle of an air to a...

Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensib...

On an air-to-air heat pump system, the suction pressure and discharge pressure are low during the cooling months. What are two possible problems: a restricted indoor metering device and a dirty air filter On an air-to-air heat pump system, the discharge pressure and suction pressure are high...

Which of the following factors affects a customers level of comfort? All of the above A cooling load calculation estimates the sensible heat gain of the structure. The cooling-only system should be within _____% of this calculated value. +15% The maximum sensible cooling capacity of ...

NATE /ICE Heat Pumps with 100% correct answers

What is a thermal equilibrium point of a duel fuel heat pump? Outdoor conditions which the capacity of a single heat pump matches the capacity of a supplementary heater Which ACCA manual should the technician consult to make an accurate calculation of residential load? ACCA J Manual ...

A correct statement regarding the outdoor coil of a heat pump is that damage may result if the: defrost water does not drain from the coil. A dirty air filter in a heat pump operating in the heating mode could result in: excessive head pressure. A dirty air filter on a heat pump syst...

Charging a heat pump with refrigerant is best accomplished in the _______ mode. A: Heating mode B: Cooling mode C: Defrost mode D: Emergency heating mode B: Cooling mode Heat pumps can provide both heating in the winter and cooling in the summer. In which mode is the heat pump mo...

The primary function of a reversing valve is to... Switch between heating and cooling A typical 4 way reversing valve has 3 ports on one side of the valve body, and a single port on the opposite side of the valve body. To what is this single port connected? The discharge line Of the ...