Case Study · Healthcare / Medical Imaging
Tower Radiology: One Retrofit, 20+ Imaging Centers in Spec
Across 20+ Florida imaging centers, MRI and PET/CT loads swing from full to near zero. The APR Control holds 68 to 72°F and 48 to 52% RH on existing DX, avoiding equipment replacement.

The Challenge
Tower Radiology expanded to over 20 West-Central Florida outpatient centers, each needing fast HVAC response as PET/CT, MRI, X-ray, and ultrasound machines cycle. When the machines run, spaces demand full cooling; when they stop, the load drops to nearly zero. Standard equipment could not hold the required 68 to 72°F and 48 to 52% RH, short cycling and failing.
The Solution
All Florida Mechanical installed Rawal APR Control valves on the existing DX equipment for continuous capacity modulation. The retrofit preserved the existing infrastructure while providing the precise, responsive control a radiology environment needs.
“I have been installing the Rawal APR valves for over 20 years plus and never had an issue.”
Jim Hartman · VP, All Florida Mechanical Services, Inc.
The Results
The same approach scaled across the whole rollout, and:
- Reused existing HVAC equipment across 20+ new locations
- Eliminated costly equipment replacement and new ductwork
- Held strict environmental compliance for sensitive imaging devices
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