2. Proudly Representing

3. When architect asks what’s new
in rooftops……….
• High Efficiency Rooftop Unit
• Flexible Design Options
• Innovative New Features

4. Packaged DX Rooftop Units
What’s
new?
Nothing new here.

5. Variable Speed Chiller
Technology
Has your rooftop kept up with chiller technology?

6. Why Variable Speed?
84% time
Below 60% Load

7. Scroll Compressors

8. Digital Scrolls

9. Variable Speed Scroll
• High EER – part load
• Controls to set point
• Eliminate Hot Gas By-
pass
• Inverter provides oil
management
• Fewer Starts/Stops
• Capacity Range 50% to
150% (30 to 90Hz)

10. Variable Speed Scrolls

11. Variable Speed Savings
AC Power Consumption vs Ambient
 Very limited
operation at peak
 Highest energy
savings where the
40% Less
unit operates the Energy
most
WATTS
 Decreased sound 90% Less
Energy
at low speed
Fixed Speed Compressor
Typical Performer VSH Unit
Low Intermediate High Peak
Ambient Temperature

12. Variable Speed Part Load
EER vs % Load
16
15
14
EER
13
EER_100%
12 EER_75%
11
10
Variable Speed Fixed
EER increases as load decreases

13. Can we do more?
V3 Technology
• Variable Speed Compressors
• Variable Speed Condenser Fans
• ECM fan technology
• VFD Driven Direct Drive Supply & Return Fans

14. V3 Technology
Raises the bar
• Higher Efficiencies
20.9 EER at low loads
15.6 EER at mid load
• Load matching
• Better Turndown

15. What about Heat Pumps?
• Annexair developed
• Water Source Cooled / Heat Pump unit
• Packaged with any Annexair Product – ERU / AHU / MAU
• 10-84 tons

16. Packaged WSHP
 All units are piped, wired & charged w/R410a
 Factory tested
 WSHP integrated within the cabinet
 Multiple Staging
 Modulating hot gas reheat

17. Product Categories
• Semi Custom Design
• Flexible layouts
• Start with a blank sheet
• Basic unit catalog

18. Product Line
Product Categories
Single device Single device Dual device
wheel/ heat pipe fixed plate
Energy Recovery Units
With energy recovery Standard MAU
Makeup Air Units
Air Handling Units
Water Cooled
With integrated water
Packaged Units Air Cooled source heat pump

19. Energy Recovery Units
Enthalpy Wheel Units –Total Energy Recovery
Heating options Cooling options
- Hot water - DX
- Steam - Chilled water
- Indirect gas fired
- Electric
Wheel effectiveness: 70-80%
(not all available configurations shown)

20. Heat Recovery Units– Sensible Heat Recovery
Fixed Plate Units
Heating options Cooling
hot water, steam, electric,options
chilled water
direct or indirect gas fired
DX
Plate effectiveness: 60-70%
(not all available configurations shown)

21. DOAS Energy Recovery Units
Dual Device Units

22. What’s the Next New Thing?

23. Thermo-Composite unit
Thermo-Composite unit

24. Thermo-Composite unit
Features
Real Thermal-break
panel
Thermal-break
framing system
Hygienic
construction

25. Thermo-Composite unit
Panel Details
2” R-14 Foam Aluminum foil finish
Insulation Inner & outer
• Foam is made of special polystyrene with 30% recycled content
• Foam is Greenguard certified
• Patent pending

26. Thermo-Composite unit
Framing Details
Insulated
intermediate
profiles
Thermal break nylon
insert – eliminates risk of Extruded anodized
condensation aluminum profiles for
unit perimeter only

27. Thermo-Composite unit
Specifications
• Fire Resistant, UL 723 / ASTM E84, Class 1
• 3000 hr salt-spray resistant
• UV resistant (PVDF coating)
• Chemical resistant
• Moisture & Chlorine resistant

28. Thermo-Composite unit
Advantages vs Standard Units
• Panel weight is 55 % lighter – Unit weight is up to 30-45 %
lighter
• Lifetime unit warranty against corrosion on the unit casing
• No through metal, true thermal-break construction
• No rusting & sweating possible
• Hygienic construction

29. Thermo-Composite unit
Electrical Features
Annexair standard electrical panel with
pre-punched power entrance Finger safe fuse
blocks

30. Thermo-Composite unit
Water Source Heat Pump
•Integrated WSHP with variable speed compressor

31. Thermo-Composite unit
Improved piping
New welded flexible hose piping which
eliminates all sources of vibration. Performs
better then standard vibration absorbers.
New anti-sweat paint applied on the bottom
section of the compressor which reduces the
amount of condensation produced.
Our new 100% made aluminum base for WSHP section with easy access to all parts

32. Example Projects

33. Natick High School

34. Natick High School

35. Natick High School

36. Natick High School

37. UMass Lowell – Fox Hall

38. VA Medical - Providence

39. Indian Pond School
Plymouth, MA

41. Rochester Memorial
Elementary School

42. Rochester Memorial

43. Strobic Fans

46. When architect asks what’s new
in rooftops……….
• High Efficiency Rooftop Unit
• Variable Speed Compressors
• V3 Technology
• Flexible Design Options
• Multiple configurations
• Heat Recovery options
• Water Source Heat Pump
• Innovative New Features

47. Questions?