Resource Center : White Papers and Technical Reports

White Papers and Technical Reports

Title Overview File Size Format
ANSI/AHRI 1060 Performance Rating of Air-to-Air Exchangers for Energy Recovery Ventilation Heat Equipment
This standard establishes a single set of requirements for the testing and rating of air flow rate, sensible, latent, and total effectiveness, and pressure drop of air-to-air energy recovery ventilation equipment; whereby, equipment performance ratings can be compared from product to product. 346 kb 
AHRI Guidleine V: Calculating The Efficiency Of Energy Recovery Ventilation And Its Effect On Efficiency And Sizing Of Building Hvac Systems The purpose of this guideline is to establish a method of calculating the energy efficiency of applied Energy Recovery Ventilation components and of heating, ventilating, and/or air-conditioning systems utilizing such components at selected operating conditions. It also provides guidance on proper sizing of cooling and heating equipment when such energy recovery components are applied. 260 kb 
AHRI Guidline W: Selecting, Sizing, & Specifying Packaged Air-To-Air Energy Recovery Ventilation Equipment (2005)
The purpose of this guideline is to provide information to support the application of Air-to-Air Energy Recovery Ventilation Equipmetn (AAERVE). This guildeline supports AAERVE that is manufactured using Air-to-Air Heath Exchangers (energy recovery components) rated in accordance with ARI Standard 1060. These recovery components include Heat Pipe Heat Exchangers, Plate Heat Exchangers, and Rotary Heat Exchangers.
Gard Analytics - ASHRAE 1254-Rp Evaluating The Ability Of Unitary Equipment To Maintain Adequate Space Humidity Levels, Phase II The objectives of ASHRAE Research Project 1254-RP "Evaluating the Ability of Unitary Equipment to
Maintain Adequate Space Humidity Levels, Phase II" were: a) to compare various unitary air conditioning system humidity control configurations in terms of humidity control performance and
operating costs; and b) develop guidelines to help identify the important application characteristics and climate factors that determine which option is most appropriate.

Matching the Sensible Heat Ratio of Air Conditioning Equipment with the Building Load SHR There is a mismatch between the SHR of the typical unitary air conditioner and that of the typical building load. The resulting loss of indoor humidity control can cause structural, comfort and health problems. Enthalpy recovery ventilation systems can address these issues by allowing standard unitary packaged cooling equipment to closely match building SHR, while conserving energy and reducing peak demand. 389 kb
Acceptable Cross Leakage for Energy Recovery Ventilation According to ASHRAE Standard 62.1 Per ASHRAE Standard 62.1, HVAC system designers have clear-cut parameters for allowable energy recovery ventilation (ERV) cross leakage/cross contamination. This white paper is intended to provide a summary of the key elements of this addendum. 36 kb
Benefits of Energy Recovery Ventilation for Planned Replacement of HVAC Systems When properly implemented, a planned replacement strategy has significant advantages for the contractor, the building owner, and the utility. 23 kb
ASHRAE Journal August 2008: Improving Humidity Control with Energy Recovery Ventilation Industry article describing how ERV will allow unitary air-conditioning equipment to maintain the indoor relative humidity within the desirable 40% to 50% range under virtually all conditions, including high humidity outdoor conditions. 501 kb
The HVAC News: ERV Comes of Age for DX Systems Industry article describing the increase in popularity of ERV technology coupled with standard unitary equipment along with its benefits. 789 kb
DOAS & Desiccants Web Exclusive: Discusses typical DOAS components and the benefits of each system.
Airxchange Wheels Payback An example of typical energy recovery wheel payback. 125 kb
Airxchange Wheels Improve Dehumidification Performance Outdoor air represents the largest source of moisture in most buildings. On hot and humid days, Airxchange
wheels dehumidify outdoor air without condensation. On cold and dry days, Airxchange wheels humidify the
outdoor air minimizing the need for additional building humidification
115 kb
 Improve HVAC System Efficiency  An Example of how energy recovery ventilation increase total system efficiency 146 kb

 Airxchange 5 Year Warranty
 Copy of Airxchange's Standard 5 Year Warranty

Scanning Electron Microscope Examination of  Airxchange Enthalpy Exchange Surface

An independent report confirming that desiccant does not separate from Airxchange wheels, even after repeated cleanings. 3364kb