Since the APR Control was introduced to the HVAC market in the early 1990s, customers have installed the devices on a wide range of applications and systems. Tests have been conducted that validate the control’s effectiveness and energy efficiency, demonstrating the positive impact of retrofitting DX air conditioning systems.
Among the benefits provided by APR Control enhancement include better capacity control and modulation for greater space comfort and maintaining lower humidity levels, managing load fluctuations in high-percentage outside air systems and protecting the refrigerant circuit in variable air volume. The results we have seen show a significant improvement in energy efficiency when compared to reheat systems as well as standard hot gas bypass (as typically piped to the evaporator coil) in both package and split-system applications.
The following case studies demonstrate these results:
ASHRAE Research Project (RP-1604)
Nodaway School District
Retrofitting unit ventilators for improved IAQ and avoiding expensive system replacements
Indoor Agriculture & Grow Rooms
Meeting environmental challenges and creating optimal conditions forplant growth and crop yield
Angiotech Electronic Valve Test/Performance
Download Our APR Control Sales Sheet
Transform any standard DX Air Conditioning system into a variable capacity system!
Download Information on Precision Discharge Air Control with Rawal APR-E Valve
Achieve the performance of a chilled water system on a DX budget!