It is no secret that a system with the ability to modulate capacity can provide better reliability and fewer operating problems. Without modulation capabilities an oversized system is likely to cause unnecessary stresses on the systems compressor and other vital components. Read More
The APR Control provides continuous capacity modulation on direct expansion air conditioning and refrigeration systems. Contractors, Distributors, and Engineers referred to the APR Control as hot gas bypass because it was the easiest way to remember and explain application use. However, the APR Control is NOT hot gas bypass! Read More
One of the biggest contributing factors to high humidity is the lack of compressor run-time, commonly known as short cycling. This is often a result of a system being oversized, providing too much cooling capacity for a space, and satisfying the thermostat too quickly. Read More
In HVAC Service, callbacks and warranty issues are an enormous problem and headache for HVACR contractors and service technicians. With the addition of the APR Control, you can eliminate callbacks on new equipment and improve performance of older/in-place equipment, saving you (and your customer) both time and money! Read More
Everyday contractors, engineers, and building owners across the country turn to the ease of DX air conditioning for a variety of reasons including: Low cost option Usually readily available Ease of installation and service Wide variety of options to accommodate space needs The challenge with DX systems is that they… Read More
Preventative maintenance (PM) is performed to identify equipment issues to bring the customer’s attention to concerns, making certain that the system will work when they need it. It allows the technician to predict, identify and correct a variety of issues that would otherwise go unnoticed until it becomes an emergency. Read More
For 30 years the APR Control has benefited engineers who design and specify air conditioning systems and solutions by providing exceptional modulation and part load control. During that time, APR Controls have remained a budget friendly solution that can provide similar or greater turndown compared to current air conditioning technology, up to 80%! Read More
The heating, ventilation, and air conditioning (HVAC) industry is experiencing longer than usual lead times. Here’s what we know and how we can help. Read More
APR Control Compressor Power Consumption Testing Parameters An HVAC equipment manufacturer conducted a test in their state-of-the-art testing facility to assess the direct energy-saving benefits of utilizing the APR Control at part load conditions. Original equipment performance parameters: 10-ton rated at AHRI 210/240 Two 5-ton stages… Read More
The APR Control Enhances Heat Pumps In the case of heat pumps, you have to prioritize capacity for either cooling or heating. If you are prioritizing and sizing for the heating load, the result will often be excess cooling capacity. The APR Control will… Read More
Rawal Devices proudly offers Free, Live, online webinars to educate you, your service & sales team, as well as your customers on the APR Control. Below are a variety of trainings we offer regularly. We can also provide completely customizable trainings, just feel free to contact… Read More
