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

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

Data Rooms & Critical Facilities facility
43%
Of unplanned outages are cooling-related
(Uptime Institute)
$5.6–9K
Per minute of unplanned outage
(Ponemon Institute)
±0.88°F
Max DAT deviation
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.

Discharge air temperature before and after APR‑E Valve: swings collapse to a tight band
Discharge air temperature, before and after APR‑E Valve: cycling swings of 10 to 14°F collapse to about 0.88°F max deviation on DAT control (Independently Field-Verified).
  • 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