Resources

Rawal Devices only manufactures and sells the APR Control & APR-E Valve. We do not provide any other materials that will be needed for the installation. Read More

The introduction of outside air with highly variable load creates the need for variable-capacity systems. APR Control enables the system to match capacity with changing load conditions. Read More

The APR Control provides alternative design strategies that have been proven to reduce total power consumption of a new or existing system installation/design. Read More

We are pleased to assist both new and long-term customers with selection of the best APR Control model (percentage of modulation) for their particular application. Read More

Rawal Devices contracted with Underwriters Laboratories’ HVAC Testing Facility to conduct a third-party evaluation of the APR Control performance against a standard DX cooling system and a system with a simple hot gas bypass during similar part-load demands. Read More

Adjusting the APR Control Are there any adjustments that need to be made after installing the APR Control? The Rawal Devices APR Control has been known around the HVAC industry as a “set it and forget it” solution. For most standard DX comfort cooling applications, the APR typically does not… Read More

In any controlled environment avoid equipment off-cycles so you don’t “lose the room!” Maintaining tight temperature and humidity levels in controlled environments such as cleanrooms is critical to prevent material damage, production loss, and shutdowns. Installing the Rawal Devices’ APR Control can be the perfect, cost-effective solution to avoid any interruptions in production as a result of the failure to maintain quality. Read More

Installing the APR Control is straight-forward and doesn’t take a lot of guesswork from the technician. It is common for HVAC technicians who are unfamiliar with the APR Control to be intimidated by the installation process. Read More

Mechanical HVAC systems can be the greatest limiting factor or the greatest opportunity to maximize productivity and profits in the indoor Cannabis Cultivation Industry. Those involved in cannabis HVAC system design, service, and operations are realizing that undersized or oversized systems from inaccurate load calculations for a given room lead to major challenges. Read More