Show:
Gas Furnaces
Air Conditioning
Electric Heaters
Troubleshooting
Appliances
100
HSI, hot surface ignitor
The source of ignition on high efficiency furnace
100
The Compressor and the Expansion Device
in what 2 major componants of an refrigeration system do pressure changes take place
100
sequencer/contactor
used to energize electric heaters
100
500 microns
the minimum level of vaccum needed when evacuating a system
100
Diode
the componant used to stop AC within a voltage doubling circuit
200
R&W
The contacts that close on a call for heat.
200
1200 btu/min.
What a ton of refrigeration is equal to.
200
balance point for heating
When the heat being added to the structure, matches the heat that is being lost
200
Checklists
tool used to ensure critical steps are not missed in a test procedure
200
Infinite switch
The switch that energizes your elements on an electric range
300
Manometer
The tool used to measure inlet and outlet gas pressures
300
The condenser.
In what componant does the refrigerant reject heat.
300
this componant needs altered for use with an elecctric furnace
Thermostat
300
isolates the refrigerant so the system can be serviced
the service valve
300
Radiant sensor
The switch is in series with the thermal fuse but parallel to the main coil.
400
14 inches of water column
The maximum inlet pressure to the gas valve.
400
Superheat
The heat energy needed to raise the vapor temp above its saturation point.
400
Proper temperature in the supply plenum when operating normally
120-125 degrees F
400
a gas furnace starts, runs for a few seconds, shuts down, and repeats this process, the problem is most likely
Defective flame sensor/rectification
400
I am a high voltage transformer in a microwave oven
a step-up transformer
500
Abnormal gas pressure, abnormal blower speed, and
The likley causes of a temperature rise being to high.
500
Low pressure, low temp, superheated vapor.
The state of refrigerant entering the compressor
500
an electric heater is referenced as an emergency heater
The result of the heat pump failing
500
18 - 22 degrees
the delta T on a 3 ton A/C system operating normally.
500
magnetron readings of less than 1 ohm from each terminal to ground occur
when do you know the magnetron is shorted and needs replaced.