The evaporator must be _____________ in temperature as compared to the Air.

A direct expansion-type evaporator is also called a ____.

The refrigeration evaporator is a component that rejects heat from the system.

Refrigerant entering the evaporator is approximately _________ vapor.

If the application requires a coil design to operate below freezing, there must be provision for ___________.

____________ is the sensible heat added to the vapor refrigerant after the change of state has occurred.

When a metering device is not feeding enough refrigerant to the evaporator coil, the coil is said to be a _______ coil..

The fins of a high temperature evaporator are spaced wider apart than those on a low temperature evaporator.

When a dry-type coil is fed too much refrigerant, the refrigerant does not all change to a vapor. This coil is thought of as a ______ coil?

The fins decrease the surface area of an evaporator.

The condenser ___________ heat as it relates to the Air Conditioning system.

If an air-cooled condenser's fan motor stops running, the head pressure will ____________________

Heat rejection is the process of reusing the heat from the hot gas off the compressor for heating water, heating air, etc.

Decreasing the temperature of the air entering the condenser.

Condensers are normally made of?

Air-cooled condensers are less efficient than water-cooled.

Standard condensers operate _______ degrees above outside air temperature?

The refrigerant enters the condenser as a __________________.

Refrigerant flows out of an air-cooled condenser at the top.

The refrigerant flows out of the condenser as a _____________.

The temperature of the compressed gas leaving the compressor can best be described as

The scroll compressor is one type of reciprocating compressor.

Excessive heat and pressure on the oil in a compressor can cause oil to break down and cause the formation of _________.

The compression ratio for an R-22 compressor operating with 68.5 psig low side pressure and 260 psig high side pressure is ____________________.

Why can't reciprocating compressors pump liquid?

A compressor that has the motor and compressor in one housing that is welded together is called a(n) ____________________ type.

The following are types of compressors.

The discus valve design is more efficient than a flapper valve design because ____.

Absolute pressure is gauge pressure.

Small compressors do not need overload protection because of the low amp draw during operation.

The primary function of an expansion device is to ____.

The TXV sensing bulb is mounted ____.

When the load on the evaporator increases, the TXV ____.

When is an external equalizer-type TXV required?

The TXV maintains a constant ____________________.

The automatic expansion valve.

Error is the same as offset

Sensible heat absorbed by the refrigerant after it has boiled to a vapor in the evaporator is called?

The needle and seat area of a TXV is made of stainless copper.

The force that acts to open the TXV is.

The first step to mold clean up is_______________________________________.

Incomplete combustion produces ___________________________.

Air in homes tend to be drier in summer.

Humidifiers do not require regular service.

Supplying or removing air by natural or mechanical means is ___________________________.

Level I mold contamination is an area ____________________________.

Humidifiers remove moisture from the air.

Static electricity is more common with dry air.

A plenum-mounted humidifier can be installed on the supply or return plenum.

High-efficiency condensers have __________________________________.

The fins on an evaporator coil are made of _______________________.

The solar load on a house is from the sun's radiation.

R-22 refrigerant production was phased out in 2020.

Residential air conditioning systems usually use fixed-bore and ___________________________ types of expansion ( metering ) devices.