Precision cooling at standby load
Data Rooms & Critical Facilities
Cooling causes 43% of unplanned outages, and your thermal buffer is minutes (Uptime Institute). APR‑E Valve, a variable capacity enhancement for standard DX systems or heat pumps, matches capacity to changing IT load on command from your BAS, from standby lull to full rack demand, without a compressor stop.
APR-E Valve

43%
Of unplanned outages are cooling-related
(Uptime Institute)
$5.6–9K
Per minute of unplanned outage
(Ponemon Institute)
100K+
Valves installed in the field
Field-proven
Why APR Control fits data rooms & critical facilities
When your BAS is asking for a straight line, your HVAC system should deliver one.

- Standby loads are where coils freeze and compressors wear out before the day they matter
- Holds discharge air steady from idle racks to peak demand
- Battery and UPS rooms stop drifting: cycling degrades battery service life
- 0–10VDC or 4–20mA control; every minute trendlogged for your ops review
- No impact on the unit's rated capacity during design day conditions
Where it matters most
Inside the Facility
Battery & UPS Rooms
Standby-load humidity and coil protection
AI Power Infrastructure
Dynamic cooling demand
Generator & Switchgear
Reliable low-load operation
Edge & Telecom Sites
Unattended reliability
Field-verified performance
The Proof, with Qualifiers
- 77% fewer compressor starts in a 3-month independent field study
- ±0.88°F max discharge-air deviation, independently field-verified
- Retrofit on the DX equipment already on the roof, documented end to end in the BAS
Stop replacing compressors in mission-critical rooms.
Complimentary application sizing for data rooms & critical facilities projects.
Get Expert Help[email protected] · 800‑727‑6447 · rawal.com
