Electrical/Math
How many volts before and after a transformer
120/240 and 24
2nd law of thermodynamics
heat travels to cold
Wire in 2 safeties on the board
(see board)
Describe a dual fuel system
H/P and Gas Furnace
Choose two refrigeration components and describe the refrigerant pressure(h/l) or state (l/v)
answers vary
Name the 5 wires used on a straight cool / gas furnace system
R C G Y W
A tool that measures esp
manometer
Who founded Total Tech?
Don Miller
How many oz should I add per foot of lineset?
.6 oz
Name the three equipment parts needed for a straight cool system
Condenser, evap coil, furnace
Name the 6 wires used on a h/p tstat and what they do
R C G W Y O
What tool measures air velocity
anemometer
Wire up a straight cool furnace 1h/1c (On the board)
(On the board)
Method used to charge a system with a piston metering device
superheat
Describe a reversing valve
judge answer
How many btus will a 10kw heat strip kit produce
34,130 btus
What is watts law?
PIE
Which company started HVAC
Carrier
How many CFMs would a 5 ton system need
1750-2000
Name and describe two metering devices
Pressure/State change?
How many amps would a 15kw heater kit draw?
About 62.5 amps
Name 4 readings a good multimeter can take
volts, amps, ohms, dc-volts, microfarads
Strip 18/8 wire in 33 seconds
judge quality
7 items found on a condenser data plate
Answers vary
Name the four refrigeration components and describe the refrigerant change of state going to and leaving
Check answer