Introduction To Fan Coil Units

Question 1

How is the fan coil unit different from an air handling unit?

Answer 1

The size and application.

Question 2

In which type of space might you find a floor mounted concealed unit?

Answer 2

Data centers

Question 3

What is necessary to maintain efficient and effective operation of a fan coil unit?

Answer 3

Regular inspection, maintenance, and cleaning

Question 4

What is the main purpose of a fan coil unit?

Answer 4

To condition the air in a single room

Question 5

What is one disadvantage of using a fan coil unit?

Answer 5

Higher ongoing maintenance requirements

Question 6

Which type of FCU is more likely to produce the most noise?

Answer 6

Ceiling mounted exposed

Question 7

Which component of the FCU allows you to regulate the temperature of the room?

Answer 7

The controlling thermostat

Question 8

What is one advantage of wall or floor mounted FCU’s?

Answer 8

Ease of access for maintenance

Question 9

What is an advantage of a fan coil unit when compared to central systems?

Answer 9

FCU’s have lower installation costs

Question 10

What is the purpose of the drain or condensate pan in a FCU?

Answer 10

To catch water that drips from the cooling coil

Question 11

What type of FCU system has a lower cost for piping and installation?

Answer 11

Single loop or two-pipe system

Question 12

What is a disadvantage of uncoordinated fan coil units in a building?

Answer 12

Uneven temperature distribution

Question 13

What is the purpose of the air vent in a fan coil unit?

Answer 13

To draw in air from the room

Question 14

In which type of space is a ceiling mounted-concealed fan coil unit typically found?

Answer 14

Office spaces with drop ceilings

Question 15

What can cause a fan coil unit to be noisy?

Answer 15

Improperly installed, old/damaged motors, and fan blades not properly aligned/balanced

Question 16

What component of the FCU is responsible for heating and cooling the air?

Answer 16

The coil

Question 17

What is one advantage of using a four-pipe system?

Answer 17

Can heat and cool a space without a coil changeover

Question 18

How do FCU’s improve air quality?

Answer 18

By capturing dust and pollen in air filters

Question 19

What does the cooling coil of an FCU draw water from?

Answer 19

A centralized chiller

Question 20

Which national code is a fundamental part of the installation of FCU’s?

Answer 20

National Electrical Code

Question 21

What can happen if a fan coil unit is improperly sized for its designated space?

Answer 21

Decreased energy effciency

Question 22

What component of the FCU helps regulate the temperature of the water flowing through the fan coil?

Answer 22

The actuator valve

Question 23

Which authorities are responsible for regulating codes related to FCU installation?

Answer 23

States, cities, or towns

Question 24

What separate system is required for fan coil units to introduce fresh air?

Answer 24

A ventilation system

Question 25

What happens after the air goes over the cooling or heating coil in an FCU?

Answer 25

The air is expelled back into the room

Question 26

Which type of fan coil unit is common in hotel rooms or apartments?

Answer 26

Wall or floor mounted

Question 27

How can fan coil units help reduce heating and cooling expenses?

Answer 27

By up to 20%, by being able to choose which rooms to cool down or warm up

Question 28

What component of the fan coil unit is responsible for drawing air from the indoor space and moving it over the coils?

Answer 28

Blower

Question 29

In what type of setting might the noise from a fan coil unit be an issue?

Answer 29

Office or residential building

Question 30

What does AHJ stand for in the context of Fan coil units?

Answer 30

Authority having jurisdiction