Basic and typical HVAC distribution schemes.

1. HVAC Distribution Schemes Except from Princeton Preservation Group Workshop, 21 May 2010 www.GarrisonLull.com © 2010 Garrison/Lull Inc.

2. BASIC HVAC DISTRIBUTION TYPES How spaces are served by the system - All-Water - Air-Water - All-Air © 2010 Garrison/Lull Inc.

3. All-Water

4. Air-Water

5. All-Air

6. TYPICAL HVAC DISTRIBUTION SYSTEMS - Single Zone - 2-Pipe Fan-Coil - 4-Pipe Fan-Coil - Constant Volume Reheat (CVRH) - Dual-Duct (DD) - Multizone (MZ) - Variable Air Volume (VAV) © 2010 Garrison/Lull Inc.

7. Single-Zone System

8. 2-Pipe Fan-Coil

9. 4-Pipe Fan-Coil

10. Heating/Cooling 4-Pipe Fan-Coil

11. Constant-Volume Reheat (CVRH)

12. Dual-Duct

13. Multizone (MZ)

14. Multi-Zone Air Handler © 2010 Garrison/Lull Inc.

15. Variable-Air-Volume (VAV)

16. www.GarrisonLull.com