STANDARD COMPETENCIES:

 

 I.      Understand the principles of single and multi-zone forced air heating systems and their control

 II.     Explain the difference between single and multi-zone systems and their control schemes

 III.    Explain the differences between oil, gas and electric fired forced air systems and their controls

 IV.     List the different types of heat exchangers utilized in forced air systems

 V.      Explain the difference types of fans utilized in these systems and the reasons for their use

 VI.     List five advantages of a steam heating system over a forced air system

 VII.    List some of the applications where a steam system would be preferred over other types of heating systems

 VIII.   Describe two types of steam distribution systems

 IX.     List at least three heat sources for steam boilers

 X       Describe the major types of steam boilers and their operation

 XI.     Sketch a typical control system for a low pressure fire tube boiler

 XII.    Explain why it is desirable to return condensate to the boiler

 XIII.   Give two methods of returning condensate to a boiler in a two pipe system and sketch both

 XIV.    Explain the operation of a one pipe steam heating system

 XV.     Explain the operation of a two pipe steam heating system

 XVI.    Explain the differences between a low pressure steam heating system and a medium and a high pressure system.

 XVII.   List the reasons for not using superheated steam in heating systems.

 XVIII.  Explain the purpose of steam traps in a steam system.

 XIX.    List the types of steam traps used in heating systems and the advantages of each.

 XX      Explain the use of air vents in a steam heating system.

 XXI.    What are the major types of terminal equipment used to supply heat to a zone in a steam system.

 XXII.   Explain how the temperature of a heating zone is controlled.

 XXIII.  Sketch a typical control system for a five zone heating system in a commercial building.

 XXIV.   Define Hydronic Heating and list at least six advantages of such a system

 XXV.    Sketch a typical residential hydronic heating system with the zone controls

 XXVI.   List the maximum working pressure and the maximum temperature of thethree classifications of hydronic heating systems

 XXVII.  List the types of terminal equipment utilized with hydronic heating systems and the advantage of each

 XXVIII. List at least three heat sources for a hydronic heating boiler

 XXIX.   Compare a commercial hydronic system vs. a steam heating system and list the major advantages and disadvantages of each

 XXX     Explain the need for an expansion tank in a hydronic heating system and list the types that are used

 XXXI.   Calculate the size of an expansion tank used in a hydronic heating system

 TOPICAL OUTLINE:

 

 I.      Forced Air Systems.

 II.     Steam Heating systems

 III.    Hydronic Heating Systems

 IV.     Heat Pumps