PDH Courses

Index

Outdoor and Indoor Ductwork Construction, Insulation and Support : 1 PDH

Gas Monitoring for HVAC Applications : 1 PDH

Effective Room Air Distribution-Practical Methods to Design and Specify : 1 PDH

Overview of HVAC System Design Concepts: Underfloor Air Distribution, Chilled Beams, Dedicated Outdoor Air Terminals and Displacement Ventilation : 2 PDH

Detailed Discussion of Chilled Beams and Dedicated Outdoor Air Terminals Concepts : 1 PDH

Detailed Discussion of Displacement Ventilation and Underfloor Air Distribution Concepts : 1 PDH

Application and Selection of VAV Terminals : 1 PDH

Air Distribution for Laboratories and Clean Rooms : 1 PDH

Air Distribution in Hospital Operating Rooms : 1 PDH

Optimizing Fan Selections: Fan Laws, Fan Efficiency, and Lowest Total Cost of Ownership : 1 PDH

Electronically Commutated (EC) Motors and Variable Frequency Drives in HVAC Systems : 1 PDH

Kitchen Ventilation and Exhaust Hood Presentation Summary : 1 PDH

Acoustics Basics for HVAC Applications : 1 PDH

Vibration Basics for HVAC Applications : 1 PDH

Seismic and Wind Restraint Basics for HVAC Applications : 1 PDH

Louver and Control Damper Application and Selection : 1 PDH

1 PDH

Ductwork located outdoors is found on many projects yet its construction, insulation, and weatherproofing are often major concerns and a continuing maintenance headache. Modern materials and construction methods eliminate these issues for the life of the system. The presentation will:

1. Review traditional outdoor and indoor duct construction and insulation methods and their shortcomings

2. Describe new phenolic duct construction and insulation.

3. Review current mechanical codes and the SMACNA standard for phenolic duct construction

4. Compare and contrast phenolic outdoor duct weather resistance, system energy consumption, air leakage, life expectancy, construction time, mold-related indoor air quality concerns, and maintenance requirements to traditional materials and methods

5. Compare and contrast phenolic indoor duct weight, system energy consumption, air leakage and construction time requirements to traditional materials and methods

6. Review phenolic duct support requirements

7. Review available design and application assistance for phenolic ductwork and its support

1 PDH

With the goal of saving energy over the 90.1 baseline (Overhead VAV), many architects are challenging mechanical engineers to provide alternate system designs. Chilled Beams have a potential to save energy, and meet these needs. Chilled Beams and dedicated outdoor air terminals can be attractive methods of delivering outdoor air at low potential energy cost while reducing building space requirements for mechanical system components. In order to meet the thermal comfort expectations of building occupants, designers must be aware of the conflicts between first costs, occupant productivity and life cycle costs. The presentation includes the following:

1. New design requirements:

   • LEED V3 has significant changes from earlier versions that have major effects on air distribution, ventilation requirements and thermal comfort.

   • Thermal Comfort: Determining optimum occupant comfort strategies. ASHRAE Standard 55 has been revised.

   • IAQ: The changing face of ASHRAE Standard 62.1, and upcoming developments.

2. Chilled Beam Systems:

   • Active and passive chilled beam operation

   • Chilled beam system components

   • Typical chilled beam design criteria-cooling and heating

   • Pros and cons of chilled beam applications

3. Dedicated Outdoor Air Fan Terminals:

   • DOAS fan terminal system concept

   • DOAS fan terminal components

   • DOAS applications and combined chilled beam/DOAS fan terminal designs

   • Pros and cons of DOAS terminal applications

1 PDH

This presentation will include discussion of the following:

1. Why consider using underfloor air distribution systems for comfort cooling

2. Typical building component requirements for UFAD design

3. Comparison of typical HVAC design and UFAD system first and renovation costs

4. A detailed review of the UFAD design concept and floor plenum design considerations

5. Common UFAD system cooling and heating design concepts and options

6. Typical UFAD air distribution components

7. UFAD design concerns including perimeter space cooling and heating design, conference room design, humidity issues, and air leakage control

8. LEED point availability with UFAD systems

1 PDH

With the many types of VAV terminals available, including variable or constant flow series boxes and chill boxes with EC motors, there are frequent questions about the proper application and selection of VAV terminals and their specifications. Included in the discussion will be:

1. Review of terminal types and their typical applications

2. Proper engineering specifications for VAV terminal types

3. Updates on ASHRAE Standard 55 and 62.1 requirements for VAV box application and specifications

4. Terminal selection guidelines

5. Electronically commutated (EC) motors in fan powered terminals, their energy consumption advantages and control sequence flexibility

6. The latest industry understanding of the proper application of overhead heating to comply with ASHRAE Standard 62.1 and LEED (dropped revision 4)

7. Best practices to establish terminal unit minimum and maximum settings and their relationship with ceiling diffuser model selection and sizing

8. Application of DOAS on series fan powered terminals equipped with a non-condensing cooling coil.

1 PDH

Review of common laboratory and common clean room issues includes the following:

1. The common types of laboratories and clean rooms

2. Laboratory air motion control and the importance of proper air distribution in laboratories

3. Design parameters including air change requirements, airborne contaminants, room air motion, air pressure control, fume hood containment, fume hood/room air interaction, and occupant comfort

4. Types of laboratory and clean room air outlets and their application

5. Comparison of particulate removal efficiency in laboratories with laminar vs. forced displacement diffusers and high induction vs. forced displacement diffusers

6. Performance and application of high accuracy air control valves and overview of typical laboratory air pressure and supply and exhaust air volume controls

7. Brief overview of clean room designs and air distribution products

1 PDH

The following will be discussed:

1. Definition of the typical conditions desired to exist in operating rooms-including desired air motion level and airborne particulates/pathogens concentrations

2. Methods of controlling airborne particulates and pathogens including filtration and dilution

3. Comparison of clean room air distribution with operating room air distribution requirements

4. Effectiveness of laminar flow type air distribution in operating rooms and the vertical velocity gradient

5. The effect of exhaust locations on air motion in operating rooms

6. The benefits of combining air curtain with laminar flow diffusers in operating rooms

7. The advantages of a factory designed and integrated operating room air distribution system that can incorporate LED lighting

1 PDH

Understanding fan terminology, types of fans and their typical applications, and optimizing fan selections for a project ensures client satisfaction. Knowing how to apply the fan laws enables engineers to predict how fans can be modified to meet new operating conditions and to solve fan performance shortfalls. The presentation will address these issues by discussing the following:

1. Fan components and performance terminology

2. Fan performance curves and common field instrumentation

3. Fan law assumptions and limitations

4. System effects-what they are and their consequences

5. How to minimize system effects

6. AMCA fan testing requirements and fan catalog performance

7. Selecting fans to minimize energy consumption and total cost of ownership

8. Required Fan Efficiency-Fan Energy Index-what is it and compliance with ASHRAE 90.1-2019

9. Fan performance measurement and application errors

1 PDH

This presentation will cover the following areas:

1. Review of common types of single phase and three phase induction motors and their components

2. Variable speed control of single phase induction and EC motors

3. Efficiency and operating limitations of single phase induction and EC motors.

4. Motor torque characteristics

5. Discussion of constant and variable torque motor loads, typical applications, and the relationship of motor torque to the current frequency

6. Definition of pulse width modulation (PWM) and the relationship between PWM and motor speed

7. Definition of harmonics, the relationship of VFD’s and harmonics and the design requirements needed to avoid harmonic induced power distribution problems

8. Review of typical and optional VFD components when applied in HVAC systems

9. Common VFD application concerns

1 PDH

The Kitchen Ventilation presentation will cover the following areas:

1. Reasons for kitchen exhaust and make up air

2. Design considerations, including common code requirements (e.g. NFPA 96, IMC, UL 710) and types of kitchen appliances

3. Comparison of Type I and Type Hood II applications

4. How hoods operate and common hood options

5. Listed vs. non-listed hood exhaust requirements

6. Grease filter options

7. Make up air design options (treated vs. non-treated and dedicated vs. non-dedicated make up air units)

8. Energy management and odor control choices

9. Field vs. factory fabricated grease duct considerations

10. Grease exhaust fan options

1 PDH

The HVAC Acoustics presentation will cover the following:

1. Terminology definitions and explanations-sound power and sound pressure

2. Sound frequency and the range of normal hearing

3. Calculating wavelength and the effect of distance on sound level

4. Sound quality and common description criteria, NC, dBA, dB, Sones

5. Acoustical evaluation methods

6. Noise sources and paths-indoors and outdoors

7. Compare and contrast acoustical treatment options

8. Sound attenuator types, performance and application criteria

9. Aerodynamic effects of sound attenuators

10. Design process to minimize acoustical difficulties

11. Sample indoor and outdoor noise calculations

1 PDH

The HVAC vibration presentation will cover the following:

1. Vibration terminology review.

2. Discuss single and multiple degree of freedom systems.

3. Discussion of transmissibility, transmissibility curves, and isolator efficiency.

4. Review the effect of isolator efficiency on vibration transferred to the structure.

5. Criteria used to establish acceptable vibration levels for occupants and equipment.

6. Review the effect of equipment foundations and structure deflection on isolator selection.

7. Discuss typical design criteria and source references for design criteria.

8. Review information needed to properly design vibration isolation applications and select equipment.

9. Discuss the application of multiple isolators in a system.

10. Review isolator types and their typical applications.

11. Review sources for design and application assistance

1 PDH

This course will:

1. Review when and where seismic and wind restraints required.

2. Describe nonstructural component designation.

3. Discuss the codes that establish restraint requirements.

4. Review which project professionals typically establish the criteria for seismic and wind restraints.

5. Discuss building risk categories, equipment importance factors, seismic and wind design categories, and how they determine seismic and wind restraint requirements.

6. Discuss how equipment location effects restraint requirements.

7. Discuss types of restraint equipment and briefly discuss their applications.

1 PDH

Louvers and control damper application requires understanding the differences between the available types and their sizing requirements. The presentation will:

1. Review the construction and configuration differences of various types of louvers and control dampers

2. Discuss code compliance requirements for louvers

3. Review performance differences of various types of louvers

4. Outline louver and control damper sizing methods

5. Discuss the various construction materials and construction methods available for louvers and dampers

6. Compare the relative cost of common louver types

7. Outline vision screen design options

8. Review performance differences of various types of control dampers

9. Define damper authority and how it affects system operation

10. Review best installation practices