Maricopa Community Colleges  HVA260   19962-20086 
Official Course Description: MCCCD Approval: 07/22/08
HVA260 19962-20086 LEC 3 Credit(s) 3 Period(s)
Refrigerant Piping
Sizing of refrigerant piping, location of valves, flow switches and pressure relief valves.
Prerequisites: None.
Go to Competencies    Go to Outline
 
MCCCD Official Course Competencies:
 
HVA260   19962-20086 Refrigerant Piping
1. Determine the proper type material for a specific refrigerant. (I)
2. Calculate the change in saturation temperature of refrigerant lines for proper size of pipe. (II)
3. Calculate proper sizes of refrigerant risers for single pipe and double pipe. (III)
4. Assess piping arrangements for multi-compressor system. (IV)
5. Assess piping arrangements for multi-evaporator system. (V)
6. Specify piping for specific receiver designs. (VI)
7. Determine proper location for valves, flow switches, and pressure relief valves. (VII)
Go to Description    Go to top of Competencies
 
MCCCD Official Course Outline:
 
HVA260   19962-20086 Refrigerant Piping
    I. Piping material
        A. Copper
        B. Steel
      II. Changes in saturation temperature
          A. Suction
          B. Liquid
          C. Discharge (hot gas)
        III. Refrigerant risers
            A. Single
            B. Double
          IV. Multi-compressor systems
              A. Discharge lines
              B. Suction header
              C. Suction - overhead pipe
            V. Multi-evaporator system
                A. Multi-stage evaporator
                B. Multi-evaporator (Parallel)
                C. Connection of risers to horizontal suction line
                D. Traps
              VI. Receiver designs
                  A. Flow through
                  B. Surge
                  C. Equalizer lines
                VII. Valves, flow switches and pressure relief valves
                    A. Valves
                    B. Flow switches
                    C. Pressure relief valves
                Go to Description    Go to top of Competencies    Go to top of Outline