BCT 234 - Residential and Industrial HVAC VII

4 Credits, 6 Contact Hours
2 lecture periods 4 lab periods
Continuation of BCT 233 . Includes water treatment, system startup and shutdown, heating and cooling system design, and commercial and industrial refrigeration systems.

Prerequisite(s): BCT 233  or concurrent enrollment.
    

1. Describe the types of problems and related remedies associated with water problems that can occur in the different types of water and steam systems.
2. Describe how to prepare, clean, start up, and shut down a steam boiler, hot-water boiler, reciprocating liquid chiller, centrifugal or screw liquid chiller, and an air handler and a forced-air distribution system, and demonstrate how to clean condenser tubes.
3. Identify the steps in the system design process, the principles that affect the selection of equipment to satisfy the calculated heating and/or cooling load, and perform a load calculation of a residence.
4. Identify the basic components, various accessories, control devices used, and perform an operational checkout of a commercial/industrial refrigeration system.

1. Water Treatment
   1. Water characteristics and analysis
   2. Problems caused by using untreated water
   3. Water treatment in open recirculating water systems
   4. Water treatment in closed recirculating water systems
   5. Water treatment in steam boilers and systems
   6. Mechanical water treatment equipment
   7. General water treatment procedures and guidelines
   8. Water treatment chemical safety precautions
2. System Startup and Shutdown
   1.  Steam/hot-water boilers and systems
   2.  Reciprocating chillers and water systems
   3.  Centrifugal chillers and water systems
   4.  Screw chillers and water systems
   5.  Cooling tower water systems
   6.  Air handling unit/air distribution system
   7.  Packaged year-round air-conditioning units
   8.  Post-shutdown maintenance
3. Heating and Cooling System Design
   1.  Overview of the design process
   2.  Building evaluation/survey
   3.  Load estimating
   4.  Equipment selection
   5.  Air distribution system duct design
   6.  Support systems
   7.  Load estimating for commercial buildings

IV. Commercial and Industrial Refrigeration Systems

1.  Refrigeration and the preservation of food products
2.  Refrigerated coolers and display equipment
3.  Refrigerated transport units
4.  Refrigeration systems and components
5.  Refrigeration system control devices
6.  Packaged ice making equipment
7.  Refrigerants and refrigerant oils
8.  Retrofit procedures guidelines
9.  Ammonia systems
10.  Secondary coolants