Gas Heat
The color of a proper flame is?
Dark Blue body with Slightly Orange tips
Portable or Small Space Heaters with glowing coils transfer heat by?
Radiation
A dirty air filter can cause many issues.. Name 3
Reduced Air Flow, Lack of Temperature difference across, High Head pressure on Gauges
What ways can Oil be stored in residential properties?
Aboveground & Below Ground
EPA Stands for?
Environmental Protection Agency
In order for combustion to happen, you need these 3 things...
Fuel, O2, & Heat
Each Heater strip must have its own ____
Relay (Safety Device)
If the Thermostat is calling for Heat, but the appliance is providing insufficient heat, which of the following is the most likely to cause for system Malfunction?
-The Main Disconnect switch is off
-The Supply voltage is too low
- Thermostat is Defective
-The Control Transformer is Defective
Supply Voltage is too Low
True or False.. Fuel Oil is able to burn in a Liquid state
False
Describe a Horizontal Furnace... & Where are these most likely to be installed in a residential area?
A furnace that is positioned on its side. Normally installed in Crawl Spaces or in Attics
This component is made up of Sheet Metal or aluminized Steel and are designed to provide rapid transfer of heat.
Heat Exchanger
True or False? Electric Heating Equipment is normally more expensive to purchase & less expensive to operate than Gas heat
FALSE.. It is LESS expensive to purchase & MORE expensive to operate
Name the 2 out of the 3 types of Wiring diagrams
Schematic & Line Diagram (Line)
A transformer in an oil heat furnace transfers ___V to ___V
120 to 10,000
The Color of an HVAC recovery tank is...
Grey Body Yellow Top
The 2 main types of fossil fuels used for this type of heat are...
Liquid Propane & Natural Gas
What is the approximate efficiency of an Electric Furnace when converting Electrical Energy to Heat Energy?
-25% -75%
-50% -100%
100%
When troubleshooting a contactor, how much voltage is suppose to be entering from the bottom & leaving out of the top. & What are those lines called? (IT IS NOT CALLED THE 'HIGH VOLTAGE WIRE')
240V entering the bottom & leaving the top. Entering as L1 & L2.. Leaving from the top as T1 & T2
6 Grades of Fuel Oil.
The Most Common is number 2 fuel Oil
This chart helps find Super Heat & Subcooling when you do not have digital gauges to do the Math for you
Temperature Pressure Chart
What digital device do you test for Gas pressure? & What are you testing for?
Manometer
Inches of Water Column
The Material that is often used to manufacture electric strip heater element wire is?
Nickel Chromium (Nichrome)
- Ladder -Pictorial
-Schematic -Line
Pictorial
Which option of Burner is better for an Oil Furnace? Conventional or Flame Retention?
Flame Retention- Provides a tighter & more uniform.. Substantially less unburned oil left behind
Adding Nitrogen to the Line Sets before you raze in any component is called?
Purging the System