HVA 201 - Electronic Controls and Troubleshooting
A review of AC and DC theory and wiring diagrams. Use of multimeters, watt/hour meters, amprobes, oscilloscopes and power sources. Students will devote considerable time to learning how to troubleshoot electrical problems through the use of load simulators such as the Ranco system and printed circuit boards. Three class hours.
Prerequisites: HVA 105, MTH 135, PHY 100, or permission of department.
Course Learning Outcomes
1. The student will review the basic electric theory and be introduced to a variety of wiring diagrams. The student will interpret the wiring diagrams, create sequence of events and suggest troubleshooting procedures.
2. The student will draw a wiring diagram when given a combination of components and the operation is desired.
3. The student will learn to cross-reference a variety of HVAC controls both electric and electronic.
4. The student will be introduced to the theory and application of micro-electronics in heating, cooling, and refrigeration applications. The student will identify "input" and "output" requirements, functions and troubleshooting techniques for electronic controls.
5. The student will know the definition of and basic application of: 1). Semi conductors 2). Diodes 3).Full wave bridges or 'wheatstone' bridges 4). Transistors 5). Rectifiers 6). Triacs
7. The student will be aware and know how to operate diagnostic tools for spark ignition boxes, hot surface ignition boxes and heat pump controls.
8. The student will evaluate the functions and performance of electronic thermostats, thermistors and common HVAC electronic controls.
Course Offered Fall and Spring