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Course Outline
Introduction to HVAC
- The need for HVAC
- References, standards and codes
- Terms, definitions and units
- HVAC system type overview
- Ventilation and air quality
- Buildings and energy efficiency
Psychrometrics
- Properties of moist air
- Psychrometric chart
- Sensible and latent
- Combined processes
- Mixing of air streams
- Design conditions
Refrigeration in HVAC
- Phase change and refrigerants
- Vapor compression cycle
- Chilled water vs. D/X cooling
- Decarbonization and heat pumps
Hydronic Systems
- Definition of "hydronics"
- Comparison to air systems
- Types of hydronic systems
- Heating Hot Water
- Chilled Water
- Condenser Water: Tower and Geo-exchange
- Glycol Water
- Types of central equipment
- Boilers
- Chillers
- Cooling Towers / Fluid Coolers
- Pumps
- Heat Exchangers
- Types of terminal equipment
- Coils
- Unit Heaters
- Fan Coil Units
- Chilled Beams
- Radiant
- System Comparison – Advantages / Disadvantages
All Air Systems
- Definition of "all air systems"
- Types of all supply and return air systems
- Recirculating / Mixed Air Systems
- Dedicated Outside Air (DOAS) Systems
- Overhead / Dilution Type: Constant Volume (CAV) and Variable Volume (VAV)
- Displacement / UFAD Type
- Types of exhaust systems
- General – Toilet, etc.
- Laboratory, process, or other specialty systems
- Types of central equipment
- Packaged / Unitary systems
- Split systems
- Air handling units
- Fans
- Types of terminal equipment
- Air Terminal Units / VAV Boxes
- Grilles, Registers, & Diffusers
- System Comparison – Advantages / Disadvantages
- Hybrid approaches
- Applications / Examples
Steam and Steam Condensate
- Definition of "steam"
- Comparison to air and hydronic systems
- ASME Codes / Safety
- Types of steam and condensate systems
- Low Pressure
- High Pressure
- Condensate Collection: Gravity return, Pumped return, Vacuum
- Types of central equipment
- Boilers
- Heat Exchangers
- Make-up water systems
- Types of terminal equipment
- Coils
- Humidifiers
- Unit Heaters
- Fan Coil Units
- Radiant
- System Comparison - Advantages / Disadvantages
- Applications / Examples
Field Tour - Wisconsin Energy Institute
Controls: Building Automation Systems
- Definition / Purpose of "Building Automation System (BAS)"
- Types of HVAC control systems
- Local
- Centralized (Building-wide)
- Pneumatic
- Direct Digital Control
- Pneumatic-Hybrid
- Programmable Logic Control (PLC)
- Type of control equipment
- Valves
- Dampers
- Actuators
- Sensors and thermostats
- Types of Controls
- Proportional/Modulating Control Concepts
- Open/Closed Loop Control/li>
- Wisconsin Energy Institute
- Sequence of Operations
- Mechanical Flow Diagrams