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Dec 04, 2024
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HCR 270 - Advanced Heating & AC Credits: 5 Lecture Hours: 2 Lab Hours: 6 Practicum Hours: 0 Work Experience: 0 Course Type: Voc/Tech This course covers installation, advanced troubleshooting, maintaining and repairing of geo-thermal heat pumps, gas, fuel oil and electric heating systems. Prerequisite: HCR 256 Competencies
- Identify and describe the function of an air to air heat pump.
- Explain the function of the coils in summer and winter.
- Explain the function of the reversing valve.
- Identify and describe function of a water source heat pump.
- Calculate the gpm of a geothermal heat pump.
- Calcualte the BTU output of a geothermal heat pump.
- Identify the various heat pump loops, such as open loop, closed loop, geothermal loop.
- Explain the drilling or boring of a geo thermal loop field and why we grout.
- List and describe the advantages and disadvantages of a horizontal loop vs. a vertical loop.
- List and describe material used for grouting of loops.
- Identify the various metering devices used for heat pumps.
- Identify the components of an air to air heat pump.
- Explain the function of the reversing valve.
- Explain the function of the accumulator.
- Explain the function of a defrost timer.
- Explain the meaning of COP (co-efficiency of performance).
- Calcualte the heat quantity in Btu/h for a geothermal heat pump.
- List the sequence of operations of a high efficiency furnace.
- Dismantle and reassemble the components of a high efficiency furnace.
- Remove the blower motor, inspect it and reinstall it.
- Remove the inducer motor, inspect it and reinstall it.
- Remove the burner assembly, inspect it and reinstall it.
- Identify and explain the operation of direct spark igniters, hot surface igniters and spark to pilot ignition in a high efficiency furnace.
- Trouble shoot and replace a control module on a furnace.
- Trouble shoot a high efficiency furnace.
- Check for voltage across a pressure switch.
- Use a volt-phmmeter to measure flame current on a flame sensor.
- Use a volt/ohmmeter to check a high limit switch and a roll-out switch for proper operation.
- Troubleshoot a high efficiency air conditioner.
- Calculate sub-cooling and superheat.
- Check the condition of a compressor using an ohmmeter.
- Check the condition of a condenser fan motor using an ohmmeter.
- Attend a Lennox, Carrier, Ruud and Trane factory training lab.
- Identify components of a hydronic heating system.
- Install furnace and air
- Rewire 2 different high efficiency air conditioner
- Program 2 different computerized thermostats
- Breakdown and reassemble 1 high efficiency furnace
- Troubleshoot high efficiency furnace 4 times
- Troubleshoot high efficiency air conditioner 4 times
- Wire the HS780 module
- Wire the SP715A module
- Wire the G60P module
- Wire the PL605 module
- Wire the S86IOU module
- Wire the S86 module
- Wire the S890 module
- Wire the S860 module
- Wire the S87 module
- Wire the S90 module
- Wire the 50A50 module
- Wire the 50E47 module
- Troubleshoot 6 different modules
- Wire the G951EDB-1401 circuit board
- Wire the S9201A circuit board
- Wire the Hamilton standard circuit board
- Check micro amps on 2 intermittent gas furnaces
- Check micro amps on 2 hot surface igniters
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