Content Outline and Competencies:

I. Career Opportunities

A.Identify career and apprentice opportunities in the HVAC trade.

B.Identify job outlook and expectations.

II. Regulations and Drawings

A.Describe the types of regulatory codes encountered in the HVAC trade.

B.Identify the types of schedules/drawings used in the HVAC trade.

C.Apply trade math principles.

III. Copper and Plastic Tubing

A.Select the right tubing for a job.

B.Cut and bend copper tubing.

C.Safely join tubing by using flare and compression fittings.

D.Identify types of plastic pipe and state their uses.

E.Cut and join lengths of plastic pipe.

F.Demonstrate soldering and brazing techniques.

IV. Heat Transfer

A.Explain how heat transfer principles occur in a cooling system, demonstrating an understanding of the terms and concepts used in the refrigeration cycle.

B.Apply the Laws of Thermodynamics.

V. Pressure and Temperature Relationship

A.State the basic safety requirements for pressure-testing a system.

B.Calculate the temperature and pressure relationships at key points in the refrigeration cycle.

C.Demonstrate the use of temperature- and pressure-measuring instruments to make readings at key points in the refrigeration cycle.

VI. Refrigerants

A.Identify commonly used refrigerants and demonstrate the proper procedures for handling these refrigerants.

B.Identify different color codes of the refrigerants.

VII. Major Components in the Refrigeration Cycle

A.Identify the major components of a cooling system and explain how each type works.

B.Install one or more of the following HVAC systems and their components: (1) Residential, (2) Commercial, and/or (3) Industrial.

VIII. Controls and Accessories

A.Identify the major accessories available for cooling systems and explain how each works.

B.Identify the control devices used in cooling systems and explain how each works.

IX. HVAC Systems

A.State the precautions that must be taken when installing refrigerant piping.

B.Determine the kinds of hangers and supports are needed for refrigerant piping.

X. Three R’s

A.Demonstrate refrigerant leak detection procedures.

B.Demonstrate refrigerant evacuation procedures.

C.Demonstrate refrigerant recovery procedures.

D.Demonstrate refrigerant charging procedures.

Content Outline and Competencies:

I. Safety and First Aid

A. State and demonstrate the safety precautions that must be followed when working on electrical equipment and circuits.

B. Discuss first aid procedures.

II. Ohm’s Law

A. Apply Ohm’s law to calculate the current, voltage, and resistance in a circuit.

B. Apply power formula to calculate how much power is consumed by a circuit.

C. Review math principles pertaining to basic algebraic equations.

III. Electrical distribution

A. State how electrical power is distributed.

B. State how AC and DC electricity are different.

IV. Circuits and Components

A. Describe how voltage, current, resistance and power are related.

B. Describe the difference between series and parallel circuits and calculate loads in each.

C. Construct parallel circuits.

D. Construct series circuits.

E. Construct combination parallel and series circuits.

F. Perform voltage, current and resistance measurements using electrical test equipment.

V. Electrical Diagrams and Symbols

A. Read and interpret common electrical symbols.

B. Identify common diagrams used in HVAC.

VI. Schematic Diagrams and Motors

A. Read and interpret electrical diagrams.

B. Describe the purpose and operation of the various electrical components used in HVAC equipment.

Content Outline and Competencies:

I. Energy Supplies and Systems
   A. Define energy.
   B. List the forms of energy.
   C. Explain energy conversion.
   D. List the types of resources.
   E. Explain energy mix.
   F. Forecast energy growth patterns.
   G. List the factors in an energy crisis.

II. Energy Consumption
   A. List the energy sectors within society.
   B. List the energy use percentages within each sector.
   C. Explain current growth patterns and trends.
   D. Describe some specific applications.
   E. Define common energy terminology.

III. Types of Energy
   A. Coal
      1. List several coal characteristics.
      2. List the three types of coal.
      3. List the availability and location of coal resources.
      4. Explain the economic and environmental problems with using coal.
      5. Explain coal gasification and liquefaction.
   B. Petroleum Energy
      1. List the availability and location of supplies of oil.
      2. Define oil exploration.
      3. Describe several methods of oil production.
      4. Describe the following types of oil transportation.
         a. Pipeline
         b. Water transportation
         c. Tank trucks and railroad cars
      5. Explain oil refining.
         a. Describe the characteristics.
         b. List several refining processes.
      6. List several oil products and their chemistry.
      7. Define oil shale.
   C. Natural Gas Resources
      1. Explain the characteristics of these types of gases:
         a. Natural gas
         b. Liquid petroleum gas
      2. Compare the heating value of LPG and natural gas.
      3. Describe the associated technology related to:
         a. Distribution and storage of natural gas
         b. Petrochemical industries
   D. Nuclear Energy
      1. Explain the basic chemistry of nuclear energy.
      2. Explain the nuclear fuel cycle, including:
         a. Mining
         b. Milling
         c. UF6 Production
         d. Enrichment
         e. Fuel fabrication
      3. List the types of reactors.
      4. Discuss nuclear waste in terms of:
         a. Characteristics
         b. Waste fuel
         c. Storage of waste.
         d. Volume of waste
         e. Nuclear waste cycle
   E. Hydroelectricity
      1. List the advantages of hydroelectric power.
      2. Discuss the present and future of large-scale hydroelectric
stations.
      3. Define pumped storage plants.
      4. Explain small-scale hydroelectric generation.
      5. List the environmental problems associated with dams and
reservoirs.
      6. Discuss the comparative regional potential.
   F. Ocean Energy Resources
      1. Explain tidal power.
      2. Define Ocean Thermal Energy Conversion (OTEC).
      3. Describe wave energy.
      4. Define ocean current power.
      5. Discuss salinity gradient power.
      6. Discuss ocean bioconversion.
   G. Geothermal Energy
      1. List the types and uses of geothermal energy.
      2. Discuss geothermal resources development.
      3. List environmental considerations.
      4. Describe the regional potential of this resource in the United
States.
   H. Biofuels
      1. Define gasohol.
      2. List the uncertainties concerning gasohol.
      3. Define biomass and energy farms.
      4. Explain how to get energy from waste.
      5. Discuss the regional advantages.
   I. Space Base Power
      1. List the sources of energy possible from space including:
         a. Nuclear
         b. Sunlight
         c. Microwave
         d. Artificial moons
         e. Fuel cells
   J. Wind Energy
      1. Describe using wind as a resource.
      2. Identify places where small wind machines would work.
      3. Describe large wind electrical systems.
      4. List the environmental and economic considerations.
      5. Describe regional advantages for wind power.
   K. Direct Solar Energy
      1. Explain solar collection.
      2. Describe solar heating systems.
      3. List the properties needed for solar storage systems.
      4. Describe solar cooling systems.
      5. Explain how solar photovoltaic systems work.

IV. Energy Conversion and Cogeneration
   A. Explain the concept of energy conversion.
   B. Define common energy converter terminology.
   C. List the chemical to thermal to mechanical converters.
   D. Explain the basic electrical principles.
   E. Explain how mechanical to electrical conversion-generators work.
   F. Explain how electrical to mechanical conversion-motors work.

V. Energy Storage
   A. Explain the concept of energy storage.
   B. Discuss battery storage technology.
   C. Discuss hydrogen storage technology.
   D. Discuss alternative storage technology.

VI. Energy Conservation
   A. Explain the objectives of energy conservation.
   B. Define energy conservation in the residential/commercial sector.
   C. Define energy conservation in the industrial sector.
   D. Define energy conservation in the transportation sector.

Content Outline and Competencies:

I. Types of Furnaces

A. Recognize the different fuel types used in various furnaces.

B. Identify different efficiencies of furnaces.

II. Carbon Monoxide

A. Identify carbon monoxide safety violations.

B. List causes related to carbon monoxide poisoning.

III. Heating System Fundamentals

A. List sequence of operation.

B. Measure temperature split.

C. Explain the design and function of heating systems.

D. Introduce airside and hydronic systems including various types of boilers, piping, chilled water and their components.

E. Interpret mechanical drawings, symbols and their application.

IV. Air Flow

A. Assess air flow/water flow.

B. Measurement and control of air temperature, humidity, pressure and velocity.

C. Apply trade math to daily applications.

V. Venting

A. Design and install venting for fossil fuel appliances.

B. Use a computer application to conduct and design flue sizing.

VI. Systems Commissioning

A. Perform start-up procedures.

B. Check gas pressure.

VII. Gas piping

A. Identify the types of ferrous metal pipes.

B. Measure the sizes of ferrous metal pipes.

C. Identify the common malleable iron fittings.

D. Cut, ream and thread ferrous metal pipe.

E. Join lengths of threaded pipe together and install fittings.

F. Describe the main points to consider when installing pipe runs.

G. Describe the methods used to join piping.

VIII. Trouble shooting

A. Inspect and perform standard seasonal maintenance and tune-up.

B. Check and adjust thermostat heat anticipators.

C. Maintenance and repairs of various HVAC systems.

D. Introduce troubleshooting of heating, cooling and heat pumps systems.

E. Introduce troubleshooting of control circuits, electronic controls and accessories.

F. Introduce troubleshooting of air quality and energy conservation equipment.

Content Outline and Competencies:

I. Seasonal Infiltration

A. Calculate U values for materials and systems.

B. Determine residential and commercial design procedures.

C. Compare different load calculation methods at American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) design conditions.

D. Determine the outdoor and indoor design temperatures.

E. Calculate Manual J and Manual N for heating and cooling loads.

F. Determine the values for doors and walls.

G. Determine the below grade values for the R and U factors.

H. Calculate the winter air exchange estimate.

I. Use the 97.5% and 2.5% ACCA guidelines for current design temperatures.

J. Determine the transmission gains for opaque surfaces.

K. Calculate the glass transmission and solar gains.

L. Determine the effects of low-e glass, integral blinds, external shade screens and skylights.

M. Analyze the overhangs, internal loads, infiltration loads and duct loss.

N. Calculate summer air changes.

II. Psychrometrics

A. Discuss the history of psychometrics.

B. Discuss dry bulb, wet bulb and relative humidity.

C. Calculate the sensible heat ratio.

D. Explain and identify how to use and apply psychrometric charts.

III. Heat Loss and Heat Gain

A. Determine the factors that are associated with heat loss in a residence and commercial building.

B. Determine the factors that are associated with heat gain in a residence and commercial building including the use of Manual J and Manual N.

C. Use the energy conservation standards and codes to determine the correct size of loads.

D. Apply computer applications as useful sales and marketing tools.

E. Calculate the energy consumption and loads requirements.

F. Demonstrate Manual J calculations using a written form.

IV. Equipment Sizing

A. List the factors that determine if the equipment is too large for residential or commercial applications.

B. Design the amount of cooling for residential or commercial applications.

Content Outline and Competencies:

I. Exam Fundamentals

A. Identify cooling equipment components and basic refrigeration theory.

B. Identify EPA regulations.

C. Describe general safety procedures.

D. Describe the application of the EPA regulations regarding the following:

1. Core

2. Type I

3. Type II

4. Type III

II. Clean Air Act

A. Identify the legal handlings of refrigerants.

B. Describe the Clean Air Act and No Venting Law.

C. Explain ozone depletion and its consequences.

D. Identify substitute refrigerants and oils.

III. Reclaim, Recovery and Recycle (3 R’s)

A. List service procedures.

B. Describe refrigerant cylinder safety procedures.

C. Identify equipment service requirements. Recovery procedures and safety procedures for Type I technicians (small appliances), Type II technicians (high pressure systems) and Type III technicians (low pressure systems).

Content Outline and Competencies:

I. Safety Responsibilities

A. Describe regulations for R-410-A.

B. Use personal protective equipment (PPE) appropriately.

C. Demonstrate safe handling procedures for refrigerant.

D. Describe purpose and use of material safety data sheets (MSDS).

E. Identify appropriate lock out tag out (LOTO) procedures.

II. Basic Refrigeration Theory for R-410A

A.Describe fundamentals of use ofR-410-A

B.Use the pressure and temperature charts for R-410-A.

III. Clean Air Act

A. Use refrigeration color coded refrigerant cylinders.

B. Describe temperature glide.

C. Describe fractionation and its importance to refrigerants.

D. Describe various appropriate service tools.

E. Identify refrigerant recovery techniques.

IV. Reclaim, Recovery and Recycle

A. Describe the concepts involved in recycle, recovery, and reclaim refrigerant protocols.

B. Identify recovery equipment and containers.

V. Substitute Refrigerants and Oils

A. Describe use of polyester oils.

B. Describe use of mineral oils.

VI. R-410-A Applications and Methods

A. Identify sub-cooling and super-heating applications.

B. Describe R-410-A charging methods.

Content Outline and Competencies:

I. Sheet Metal Orientation
   A. Describe terms and definitions.
   B. Match metals to their significance.
   C. Discuss job opportunities for sheet metal workers.

II. Safety
   A. Discuss terms and definitions.
   B. Explain accident causes.
   C. Describe safe working attire.
   D. Describe safe lifting.
   E. Demonstrate safe use of tools and equipment.
   F. Describe fire safety rules.

III. Basic Math and Measuring
   A. Discuss terms and definitions.
   B. Calculate fraction problems.
   C. Calculate decimal problems.
   D. Calculate percent problems.
   E. Demonstrate architects scale-use in sheet metal.
   F. Calculate area and perimeter.
   G. Calculate circumference and area of a circle.

IV. Hand and Machine Tools
   A. Discuss terms and definitions.
   B. Describe measuring tools.
   C. Lay out and cut with straight snips.
   D. Lay out with dividers and cut with left cutting snips.
   E. Lay out with dividers and cut with right cutting snips.
   F. Fold, bend, hem, set down and make drive clips with a bar folder.
   G. Lay out then cut on a square shear metal sheets to make a cylinder.
   H. Roll flat metal sheets into cylinder with a slip roll.
   I. Fasten seams with a resistance spot welder.
   J. Crimp, bead, edge, and dovetail cylinders on a combination rotary
machine.
   K. Form hems and seams on a hand brake.
   L. Join a cylinder to a flat surface with a dovetail notch.
   M. Lay out, cut and form on a Pittsburg machine and a hand brake, a one
piece rectangular duct.
   N. Turn drives on rectangular duct using a cleat bender.
   O. Determine the diameter and length of tinner rivets for selected
sheet metal thickness.
   P. Lay out, cut and fasten together a simple box with sheet metal
rivets
   Q. Lay out, cut and fasten together a simple box with pop rivets.
   R. Lay out, cut and fasten together two cylinders with mechanical and
non-mechanical fasteners.
   S. Lay out, cut and form a damper for installation in a rectangular
duct.
   T. Install a damper and quadrant in a rectangular duct.
   U. Lay out, cut and install a damper in a round duct..

V. Projects - Layout, cut and fabricate to specifications:
   A. Metal box.
   B. Rectangular duct.
   C. 90/ Square heel and throat elbow.
   D. 90/ Square and round heel elbow.
   E. 90/ elbow with round throat and curved heel.
   F. Two-Way AY@ Branch
   G. Offset with a square throat and heel.
   H. Offset with a curved throat and heel.
   I. O.G. Transition offset.
   J. Transition.
   K. Square to round.
   L. Drop-cheek elbow with round heel and throat.
   M. Transition AY@ branch.

VI. Layout
   A. Cylinder cut on a miter.
   B. Cylinder cut oblique to axis.

Content Outline and Competencies:

I. Psychrometric Chart

A. Use the psychrometric chart to plot and calculate the following:

1. Total heat

2. Humidity ratio

3. Enthalpy

4. Sensible heat ratio

5. Air conditioning process

B. Use the psychrometric chart to solve the following problems:

1.  Mixed air temperature problems.

2.  Leaking RA (return air) ducts.

3.  Total air flow.

4.  Total A/C load.

C. Define refrigeration as applied to air conditioning.

1. Explain the refrigeration cycle typical for comfort cooling.

2. Explain how the functions of the evaporator affect comfort.

II. Air Conditioning Systems Operations and Components

A. List the components and controls in a typical air conditioning system.

B. Identify the controls for compressors and fans.

C. List the functions and operating characteristics of low-voltage control systems.

D. List the components and controls in a typical air conditioning system.

III. Installation and Service Techniques

A. Explain the purpose of evacuation and dryers.

1. Describe how air and moisture gets into a system.

2. List the triple evacuation procedures.

3. Perform a triple evacuation.

B. Assemble copper tubing by brazing and leaks testing the joints.

C. List the testing methods to determine leaks.

D. Describe the materials used in brazing, advantages and disadvantages.

E. Describe the methods of cleaning joints.

F. Find leaks using the three leak detection methods.

IV. Air Flow in the Cooling Systems

A. Figure percentage of air re-circulation.

B. Interpret fan curves from the manufacturer’s charts.

C. Use the pitot tube to measure and calculate the following.

1. Static pressure.

2. Velocity pressure.

3. Total pressure.

V. Customer Service Skills

A. Describe proper customer service skills.

B. Practice skills with the external customer.

C. Practices skills with the internal customer.

D.Demonstrate proper protocol to deal with problematic customers.

VI. Efficiency of Air Conditioners and Heat Pumps

A. List purpose, function and characteristics of the following:

1. Evaporator

2. Compressor

3. Metering device

4. Condenser

5. Heat pump

B. Identify 13 SEER equipment and above.

VII. Apply the Manual J, Manual H, and the Manual N

A. Apply Manual J to sample residential systems.

B. Apply Manual N to sample commercial systems.

C. Apply Manual H to sample heat pump systems.

VIII. Cooling Systems Fault Analysis

A. Analyze electrical faults in cooling systems.

B. Analyze mechanical faults in cooling systems.

C. Attach and use a gage manifold set.

D. Determine appropriate use of the gage manifold set.

E. Interpret low-side gage readings.

F. Interpret high-side gage readings.

G. Interpret Delta-T temperature readings.

H. Diagnose compressor problems.

I. Troubleshoot the circuit electrical protectors – fuses and circuit breakers.

J. Diagnose and replace faulty parts.

Content Outline and Competencies:

I. Explain the Basic Principles of Operation of the Following Types of Rooftop Units.

A. Gas heating units

B. Electric heating units

C. Electric cooling units

D. Combination gas/electric all season units

E. Single zone vs multizone

F. Horizontal discharge/down discharge

G. Draw through vs blow through type units

II. Identify the functions and operational characteristics of the following components of gas heating units.

A. Combustion blower motors

B. Ignition controls - sequence of operation

C. Limit controls

D. Combustion air adjusters

E. Safeties

III. Identify the Functions and Operational Characteristics of the Following Components of Electric Heating Units.

A. Electric heat elements

B. Sequencers

C. Limit controls

D. Safeties

IV. Identify the Functions and Operational Characteristics of the Following Components of Electric Cooling Units.

A. Starting relays and capacitors

B. Outdoor fan motors

C. Compressors

D. Limit controls

E. Economizers

F. Safeties

V. Identify the Functions and Operational Characteristics of the Following Components of Economizers.

A. Temperature sensing

B. Enthalpy controls

C. Minimum outside air requirements

D. Damper linkages/adjustments

E. Damper motors

F. Fresh air intakes

VI. List the Installation Cautions and Procedures for Roof-curbs and Adapter Curbs.

A. Install insulation.

B. Install cant strips.

C. Install filler panels.

D. Install nailer strips.

VII. List the Installation Cautions and Procedures for Concentric Duct Package Units.

A. Calculate the sizing required.

B. Describe the register types and air velocity design parameters.

VIII. Identify the Functions and Operational Characteristics of a Typical DDC controlled system.

A. Components

B. Wiring

C. Sensors

D. Communication links

E. Zone controls/dampers

F. Disconnect and reconnect to operating condition all the communication and control wiring for a typical DDC controlled system.

IX. Discuss the Following Design Considerations.

A. Roof support

B. Weight distribution

X. Startup, Checkout and Adjustment of Rooftop Units

A. List general safety procedures.

B. Discuss the startup check sheet provided by the manufacturer.

C. Exercise: Follow a startup procedure provided by the manufacturer.

D. Calculate a performance check.

E. Calculate the net cooling capacity.

F. Exercise: Calculate and measure the air flow in a system.

G. Exercise: Calculate and measure the air flow in a system using the auxiliary heat method.

H. Exercise: Calculate and measure the Air conditioners gross capacity.

XI. Troubleshooting the Mechanical Side of a Rooftop System.

A. List the general refrigeration side problems.

B. Solve air system problems, high and low.

C. Solve specific rooftop refrigeration system problems on an operating rooftop system.

D. Test a heat exchanger for leaks.

E. Exercise: Disassemble and reassemble to operating condition two different rooftop units.

XII. Troubleshooting the Electrical Side of a Rooftop System.

A. List the general electrical side problems.

B. Find and repair faults to the following components in an operating rooftop unit.

1. Combustion blower motors

2. Ignition controls

3. Draft proving check sheets

4. Limit controls

5. Combustion air

6. Electric heat elements

7. Sequencers

8. Safetys

9. Economizers

10. T-stats

11. Miswiring

12. Compressors

13. Starting components

14. Outdoor fan motors

Content Outline and Competencies:

I. Safety

A. List common safety rules and procedures for an HVAC service technician.

B. Describe specific safety concerns when in the field.

II. Theory of Fuel-Burning Appliances

A .Explain using natural gas as a fuel.

B. Explain using LP gas as a fuel.

C. Discuss the pilot burner and its safety controls.

D. Describe the operation of combination gas valves.

E. Describe the operation of heat exchangers.

F. Describe the operation of furnace blowers and controls.

G. Describe the operation of temperature limit switches.

H. Discuss when electronic ignition systems are used.

I. List the sequence of operation for various heating systems.

J. Compile a furnace tune-up check sheet.

III. Carbon Monoxide

A. Discuss dispersion patterns.

B. Discuss diagnosis of CO poisoning.

C. Discuss prevention of CO production.

D. Discuss health effects of CO.

E. Perform first response procedures for CO poisoning.

F. Discuss when medical referral is necessary.

G. List codes applicable to CO.

H. Describe how various CO detectors work.

IV. Venting

A. Describe the theory of operation of the venting system.

B. Describe draft diverters.

C. Describe stack effect.

D. Describe condensation in vent stacks and how to prevent it.

E. Determine size of vent for a single appliance.

F. Determine size combined vents.

G. Calculate location of top of flue stack in relation to various roof pitches and heights.

H. Install various venting systems to code, with special consideration given to the following factors:

1. Code requirements, single wall versus double wall

2. Support of vent piping

V. Fuel-Burning Equipment

A. Discuss aspects of fuel-burning equipment terminology.

B. Describe operation of fan-assisted appliances.

C. List the applications, precautions, and sizing for the following materials:

1. Single wall galvanized metal

2. Double wall galvanized metal

3. Masonry chimney

D. Discuss the sizing methods required by the following codes and regulatory bodies.

1. International Plumbing Code

2. National Fuel Gas Code

3. G.A.M.A. (Gas Appliance Manufacturers Association)

VI. Piping Schematics

A. Identify various piping schematics that are used with HVAC equipment.

B. Identify various piping schematics that are used with boilers.

VII. Boiler Applications

A. Discuss the history of boilers.

B. Explain the differences between a steam and water boiler.

C .Identify the various components of a water boiler system.

D. Identify the various components of a steam boiler system.

E. Compare steam boilers by their applications:

1. Utility/marine

2. Process

3. Comfort (space heating)

4. Steam-to-water converters

F. Recognize the different types of steam boilers:

1. Water tube

2. Fire tube

3. Horizontal Return tube

4. Vertical

5. Scotch marine

6. Locomotive

G. Explain the ASME (American Society of Mechanical Engineers) code designations.

H. Describe the differences between cast iron sectional and package boilers.

VIII. Boiler Components

A. Recognize and describe the use of the various valves and fittings.

B. Discuss in detail the pressure relief valve for both a steam and water boiler application.

C. Describe the construction and operation of a pressure relief valve.

D. Explain the code requirements for the installation and adjustment of relief valves.

IX. Appliance Troubleshooting

A. List the basic steps of the troubleshooting approach.

B. Use test equipment.

C. Diagnose electrical faults.

D. Troubleshoot various problems on different furnaces.

Content Outline and Competencies:

I. Equipment Selection

A. Select cooling equipment based upon the design.

B. Calculate the sensible and latent load.

C. Choose equipment based upon the performance data.

D. Select heat pumps based upon design temperatures.

E. Choose a furnace and “A” coil based upon the data.

F. Analyze current manufacturer’s performance data.

II. Characteristics of Duct Work

A. Design duct work systems.

B. Choose residential duct design components.

C. Use the duct slide chart.

D. Use the friction chart.

E. Determine the fitting losses based upon the Manual D.

F. Calculate the branch take-off fittings.

G. Determine the room air distribution.

H. Calculate the area for return grilles.

III. Calculate and Design an HVAC System

A. Design a system using the Manual J and the Manual N for comfort cooling.

B. Design a system using the Manual J and the Manual N for comfort heating.

C. Select air conditioning and furnace equipment based upon the correct size derived from the Manual J and Manual N.

D. Determine the amount of cooling BTU on the basis of design temperatures, summer air change estimates, humidity, transmission gains and solar heat gains in accordance to the Manual J and Manual N.

IV. Calculate and Design an HVAC Duct System

A. Use the Manual D to determine the correct size of duct work.

B. Determine if your allowances are with the total equivalent length (TEL) ratio.

V. Analyze Systems Efficiency

A. Measure air velocities throughout the supply and return duct system.

B. Analyze equipment selection and duct

Content Outline and Competencies:

I. Electrical Wiring

A. Install low voltage wiring to an HVAC system.

B. Install a new double pole breaker.

C. Install an electrical disconnect.

D. Install seal-tight from an outside electrical disconnect to a condensing unit.

E. Install a 120 volt circuit to a furnace complete with a proper ground.

F. Install a 240 volt circuit to an air conditioner with a proper ground.

II. Vent Piping

A. Identify the various materials used in vent piping systems.

B. Identify current venting tables and size vent connectors and vents.

C. List the proper clearances and support hanger requirements for vent piping systems.

D. Install single wall vent connectors from multiple appliances to a chimney.

E. Install Type “B” double wall vent pipe from gas appliance to exterior cap.

F. Install PVC exhaust and intake piping for a condensing furnace with proper pitch.

III. Sheet Metal and Ductwork

A. Identify proper sheet metal gauge size.

B. Measure and properly complete the sheet metal fabrication order form.

C. Install a high sidewall supply air stack.

D. Install return air panning and headers.

E. Demonstrate how to seal a duct system.

F. Calculate a duct to proper length, form edges for drives and assemble duct on the job site.

G. Use fasteners to connect ductwork to mechanical equipment.

IV. Permits and Job Commissioning

A. Complete a job installation and commissioning.

B. Create a Quality Report.

C. Explain how to obtain a permit for a job.

D. Describe the importance of a commissioning  inspection.

V. Carbon Monoxide

A. Explain how carbon monoxide is generated and dispersed.

B. Diagnose carbon monoxide presence and conduct a precautionary test.

C. Identify health effects of carbon monoxide.

VI. Safety Procedures

A. Demonstrate how to use a torch set.

B. Demonstrate how to use fire protection around combustible materials.

C. Describe the use of a fire extinguisher.

D. Demonstrate tying off an extension ladder.

VII. Gas Piping

A. Identify the various gas piping materials.

B. Identify the various gas piping tools.

C. Measure and calculate a piping system.

D. Check gas pressure with a manometer.

E. Clock a gas meter to determine a gas appliance firing rate.

F. Demonstrate cutting and threading gas pipe.

G. Demonstrate proper hangers and spacing requirements for horizontal and vertical gas piping systems.

Content Outline and Competencies:

I. IMC Use

A. Demonstrate application of the code book.

B. Identify the subgroups in the code book.

II. IMC Administration

A. Explain the role of the administration of the code.

B. Understand the terms associated with the code.

III. Other Code Books

A. Understand the regulations concerning the various code books.

B. Differentiate current code requirements from past code regulations.

C. Identify how to find important information concerning the code.

D. Summarize the code use in various cities, counties and state.

IV. License Requirements

A. Determine testing requirements for a candidate in various jurisdictions.

B. Identify the responsibility of the test taker.

Content Outline and Competencies:

I. Controls

A. Describe which control system type is normally used in a two (2) position control.

B. Explain which control method is best used for multi-zone applications.

II. System Diagrams

A. Compare and contrast digital versus analog controls.

B. Identify examples of common controls systems.

C. List the advantages of pneumatic and electronic controls.

D. Create a flow chart which shows the sequence of operation from the sensor to the final control device for pneumatic, electronic and DDC control operation.

E. Control Principles

1. Define electronic and pneumatic control sensors.

2. Define thermostat controllers and multipurpose controllers.

3. Discuss throttling range and proportional band in an electronic controller.

4. Describe various final control elements.

III. Advantages of DDC and Microprocessors

A. Describe the proper maintenance and service of the pneumatic air supply system.

B. Identify pressure relief devices and their respective pressure settings.

C. Discuss devices used in moisture and oil removal.

D. Explain the process of remote access for building control.

E. Describe the different types of modems available for control communication.

F. Explain the different baud rates available for DDC communication.

G. Describe the differences between serial and parallel communication connections.

H. Discuss sensors/transmitters.

1. Explain the differences between bimetal and resistive sensors and transmitters.

2. Discuss the accuracy of traditional sensors compared to electronic and pneumatic sensors.

3. Describe the operation of pressure and humidity sensors and transmitters.

4. Explain the differences between positive and negative temperature coefficient sensors.

IV. Installation

A. Explain how to recognize a three phase service.

B. System Installation

1. Describe proper wiring techniques for electronic controls.

2. Describe proper air line connections for pneumatic controls and sensors.

3. Explain proper installation of a DDC communication bus.

4. Discuss the differences between wiring electronic controls and standard controls.

5. Demonstrate installation wiring of a controller, sensor and final control element.

V. Common Terminology

A. Define the following HVAC controls:

1. Hardware

2. Software

3. Integrated circuits

4. ROM (read only memory)

5. RAM (random access memory)

6. EEPROM (electronically erasable programmable read only memory)

7. Serial and parallel ports

8. Communication protocol

B. Discuss the relationships between ROM, RAM and EEPROM memory.

C. Explain the basic function of a DDC controller as compared to a standard controller.

Content Outline and Competencies:

I. Work Environment in the HVAC Field

A. Obtain a position with a HVAC employer.

B. List all objectives and situations that arise from the internship position.

C. Describe daily activities during the internship.

II. Secure an Approved Training Position

A. Write a letter of inquiry.

B. Write a resume.

C. Complete a job application.

D. Describe a job interview.

III. Maintain Accurate Records of Job Activities

A. Record all significant activities.

B. Create a detailed list of employer expectations regarding the position.

IV. Professionalism in the workplace

A. Define labor relations.

B. Explain human relations.

C. Examine job performance.

V. Demonstrate the ability to work with others.

A. Describe how to work with supervisors.

B. Describe how to work with other employees.

C. Describe how to work with customers.