Red Seal /tq Questions

Question 1

What is another term for 24vac on transformers ?

Answer 1

Control circuit

Question 2

Which colour of wire is used for r on thermostat terminals?

Answer 2

Red/power

Question 3

Max temp setting for high limit switch ?

Answer 3

250 degrees Fahrenheit

Question 4

How are transformers rated for power ?

Answer 4

Va ratings = volt amps

Question 5

Which class are transformers in furnaces ?

Answer 5

Class 2

Question 6

What’s required to perform a closed circuit test ?

Answer 6

Multimeter and thermocouple adapter

Question 7

4 thermocouple tests ?

Answer 7

Open circuit : 17-32mvdc
Closed circuit: 10-17mvdc
Dropout:0.75-6mvdc
Flame response time: 180 seconds

Question 8

What is a draft diverter used for ?

Answer 8

Dilution air (cools products of combustion )

Breaks the stack effect

Question 9

What needs to be done when measuring heat anticipator amperage of the circuit ?

Answer 9

10 wraps of the wire around clamp of the multimeter

Question 10

If your circuit is reading 96vac are u in phase or out of phase ?

Answer 10

In phase
24-120vac
96 is inbetween

Question 11

If your circuit is reading 144vac is-it in phase or out of phase ?

Answer 11

Out of phase
24-120vac
144vac not inbetween