Providing continuous capacity modulation for HVAC/R DX systems since 1993 · 100,000+ valves installed in the field

Free Engineering Consultation

Get Expert Help

Ready to buy, or still deciding? Either way you talk to a real Rawal Devices Engineer. Size your APR Control now and we confirm the selection free before you order, or describe your problem and we tell you whether it fits.

How can we help?

Submissions go straight to our team at [email protected] and are reviewed by a real person, not an automated quote. We respond within one business day.

Prefer to start with the sizing tool or a free pre-installation webinar?


What you get

An Honest Fit Assessment

We focus on DX equipment where capacity modulation can make a measurable difference, and we will be upfront when your application is not the right fit.

Sizing, Done by Us

APR Control is sized to the lead compressor. Our engineers do the selection. You do not need to work out turndown or circuiting yourself.

The Numbers That Apply to You

Reliability, humidity, and part-load energy framed against your equipment and application, with every stat carrying its qualifier.

A One-Business-Day Response

Submissions route to our engineering team and we respond within one business day. We will not promise faster than we can deliver.