This document discusses new innovations in rooftop units, including variable speed compressor technology, V3 technology, and a new thermo-composite unit. Variable speed compressors provide higher efficiency at part loads and eliminate hot gas bypass. V3 technology uses variable speed compressors and condenser fans for even greater efficiency. A new thermo-composite unit features a lightweight insulated panel construction for improved performance and lifecycle costs. Examples of completed projects utilizing these technologies are also provided.
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)
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)
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
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