2023 Gas Furnace Training Day 2 Test

What does FER stand for

Why did the reason FER was implemented?

Of the 4 motors currently available which one does the least de-humidification?

The VCA motor is?

What happens to the airflow at 1″ of static on a furnace with a VCT motor?

The MCT motor is?

True or False: A hole or crack in a heat exchanger large enough to expose flue gases to the conditioned air stream causes CO to enter the air stream?

True or False: Gas line can enter from either side with a flexible connector?

Where do you find the venting information?

What is the CFM of a gas furnace that is 110,000 BTUH input, 80% AFUE, and has a 45° Delta T  (temperature rise)?

How does a gas furnace measure the CO?

Carbon Monoxide Is a ___________, _____________, and _____________ gas.

Only homes with gas appliances should have CO detectors/monitors?

When twinning 2 furnaces can you have 2 different model numbers?

Based on this table what size vent pipe should you use for a 110,000 BTU 80% AFUE Natural Draft Gas Furnace with 6′ of vent height?

GAMA Vent Tables

A sediment trap is required on the gas line when __________________.

Which motor can be used with Infinity / Evolution Products?

What does FCT stand for when referring to ECM motors?

What does VCA stand for when referring to ECM motors?

How do you contact Tech Support from the field?

Single wall vent pipe is acceptable in which application?

What is the last thing you do when converting a furnace to Propane?

When twinning 2 furnaces the left hand furnace is __________?

Where do you take the static pressure measurements for TESP?

Where can I find the airflow if I know the static pressure?

How do you determine a pressure switch break point?

What tools do you need to troubleshoot a pressure switch?

What tools do you need to troubleshoot a limit problem?

Where do you find the temperature rise for the unit?

Are there other components in the limit switch circuit that could show a limit fault?

The VCA motor is _________.

In the component self test, how many seconds is the gas valve open?

When replacing a furnace, is it safe to assume since there was a 100, 000 BTU unit there before, you can install another one of the same size?

What should the manifold pressure be for a single stage furnace on Natural gas?

What should the incoming gas pressure be at the gas valve inlet of a natural gas furnace?

What is a normal flame signal when testing?

To test the microamps on a flame sensor the meter must be capable of reading microamps and the leads must be connected how?

On a 110,000 BTU 80% AFUE gas furnace with a 36° degree temperature rise what is the airflow in CFM?

Using this diagram, what relay contacts must close for the Induced Draft Motor to energize?

Using this diagram, if FU1 is open will the thermostat have power?

What does NFC stand for?

What app is required to connect to the NFC control board?

NFC Control board setup

What is the test sequence on the NFC control board? (place the correct answers in the correct order)

Which wire feed a constant 15VDC to the PWM motor?

Which wire provides feedback FROM the motor to the furnace control?

The blower motor always has power as long as the furnace is powered up?