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Understanding Thermostat Wiring

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

What color is the wire connected to the heating system?

a)

None of the above

b)

Green

c)

Yellow

d)

White

2.

Which wire connects to the air conditioning compressor?

a)

Rc wire

b)

G wire

c)

Y wire

d)

W wire

3.

What color is the G wire?

a)

Red

b)

Blue

c)

Yellow

d)

Green

4.

What do the Rc and Rh wires represent?

a)

Power source for the thermostat

b)

Fan connection

c)

Heating system

d)

Air conditioning compressor

5.

What is the common color for the wire that connects to the fan?

a)

Green

b)

White

c)

Blue

d)

Red

6.

How many wires are most commonly seen in thermostat configurations?

a)

Four

b)

Two

c)

Seven

d)

Five

7.

What is the difference between B and C wires on a thermostat?

a)

There is no difference

b)

B is for battery, C is for current

c)

B is for boiler, C is for cooling

d)

B is for blue (cooling), C is for common

8.

Which wire is typically used for the 24-volt common connection?

a)

Red wire

b)

White wire

c)

Blue wire

d)

Green wire

9.

What function does the Y wire serve in a thermostat configuration?

a)

Controls the fan

b)

Signals the air conditioning unit

c)

Provides power to the thermostat

d)

Connects to the heating system

10.

Which color is commonly used for the wire that provides power to the thermostat?

a)

Red

b)

Blue

c)

Yellow

d)

Green

11.

How is the W wire typically used in thermostat wiring?

a)

For cooling

b)

For heating

c)

As a common wire

d)

To power the thermostat