Air Conditioning
Gas Furnace
Oil Heat
Electrical
Vapor Compression Cycle
100

This part of the system uses outdoor air to cool off refrigerant

What is Condenser?

100

This devices proves the inducer is running properly

What is a pressure switch?

100

Light sensitive device used to prove flame

What is Cad Cell eye?

100

A reading of 120V across the switch

What is an open switch?

100

This is the heart of the system (AC)

What is compressor

200

This is the minimum amount of vacuum necessary before charging system with refrigerant

What is 500 microns?

200

Device that shuts burners off if Furnace over heats

What is a High Limit switch?

200

This device allows fuel pump to spin with burner motor

What is coupling?

200

E=IR

What is Ohms Law?

200

Where are 2 pressure changes located?

What is Compressor and Metering Device

300

This is an inert gas (non-flammable) that is used to purge when brazing

What is Nitrogen?

300

This is the proper manifold pressure for Natural Gas

What is 3.5 inches water column

300

This device is used to convert a 1 pipe system to a 2 pipe system

What is Tiger Loop

What is oil deaerator

300

An induction load with 0.0 ohms

What is a short?

300

Where does refrigerant change state?

What is Evaporator and Condenser Coil

400

Liquid Line measured at 90 degrees.

Condensing Temp measured at 85 degrees.

What is my subcooling?

What is 0 degrees Subcool?

OR

What is negative Subcool?

400

This causes rollouts

What is a cracked heat exchanger OR

What is a blocked/plugged heat exchanger OR

What is Overfiring?

400

This Delavan nozzle delivers 91,000 BTU/H with a 45 degree solid spray

What is a .65 GPH 45°B

400

What does your Volt Meter measure?

What is Potential Difference?

400

Where can you find superheated vapor?

What is Evaporator AND Discharge Line

500

This will result in High Subcooling and High Superheat.

What is a liquid line restriction?

500
Process of converting AC current to DC current in a furnace

What is Flame Rectification

500

Another term for perfect / theoretical combustion

What is stochiometric combustion?

500

Name a Resistive Load?

What is :

Heating Element

Crankcase Heater

HSI (Hot Surface Ignition)

500

Room Temp at 75 degrees

Suction Line Temp at 52 degrees

What is my superheat?

What is 12 degrees?