Resources

The APR-E Valve: Precision Temperature Control

Maximize Comfort & Efficiency with Precision Temperature Control of the Electronic APR-E™ Valve! Since 1993, Rawal Devices has successfully manufactured and sold the mechanical APR Control valve for continuous capacity modulation on new or existing, in-place HVAC systems. In 2009, Rawal introduced the electronic APR-E valve… Read More

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Critical Importance of Humidity Control

Transform your business with precise humidity control! Discover how maintaining optimal humidity levels can boost employee productivity, protect valuable equipment, and ensure product quality. Rawal Devices offers cutting-edge solutions to help your business thrive. Learn more now! Read More

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The Problem with Oversized HVAC Systems

Problem: HVAC systems are typically sized for full load conditions, which only occur for a small percentage of the year. The rest of the time that system is oversized, which can lead to many operational issues. Oversizing HVAC systems is a common industry practice to create safety margins when conditions… Read More

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The Rawal APR Control is a variable capacity enhancement to DX HVAC systems.