Contact UsCall Now

Quick Help Topics

Data Center HVAC & Mission-Critical Cooling

Data Center HVAC & Mission-Critical Cooling

Kelley Mechanical installs and services the precision cooling equipment that keeps data centers and server rooms running. Downtime in a mission-critical environment costs far more than a service call, and a single degree of temperature drift can trigger equipment shutdowns designed to protect servers from overheating. Our team responds fast and works on a wide range of CRAC and CRAH platforms from the industry's leading manufacturers, from small server closets to full-scale data halls.

Precision cooling is not the same discipline as standard commercial HVAC. Data center environments demand tight temperature and humidity tolerances, redundant capacity, and technicians who understand what happens when cooling fails in a room full of servers. Kelley Mechanical built our data center division around exactly that level of precision.

Certified Data Center Cooling & CRAC Installation and Service

We offer state of the art equipment including:

Stulz

  • CyberAir CW and DX
  • Custom Indoor CeilAir
  • CyberOne
  • ModulAir Dual Circuit DX
  • MiniSpace EC
  • Compact CWE
  • CyberRow
  • DAH Ducted Humidification

ClimateWorx Vertical Floor Mount Systems

  • Series 6 (2-5 tons)
  • Series 8 (6-10 tons)
  • Series 9 (6-30 tons)
  • Series P (3-50 tons) & Series PS6 (2-5 tons)
  • Series IR (3-16 tons)

ClimateWorx Wall & Ceiling Mount Systems

  • Series 7 (1.5-2.5 tons)
  • Series 11 (1-5 tons)

Equipment Manufacturers We Service

At Kelley Mechanical, we are experts at servicing all equipment manufacturers including:

  • Vertiv
  • Schneider Electric
  • Stulz
  • Rittal
  • Johnson Controls
  • Mitsubishi Electric IT Cooling
  • Alfa Laval
  • Fujitsu General
  • Hitachi
  • CoolIT Systems
  • LiquidStack
  • Asetek
  • Asperitas
  • Chilldyne
  • Mikros Technologies
  • Kaori Heat Treatment
  • Lenovo
  • Nortek Air Solutions
  • Delta Electronics
  • Munters
  • Airedale (Modine)
  • Black Box (Chatsworth Products)
  • Submer
  • GRC (Green Revolution Cooling)
  • Coolcentric
  • Starline

Data Center Cooling Services We Provide

  • CRAC and CRAH unit installation, replacement, and repair
  • Precision cooling system maintenance programs
  • Emergency service for mission-critical environments
  • Humidification and dehumidification system service
  • Redundancy planning and system upgrades
  • Liquid cooling system service, including immersion and direct-to-chip platforms

Why Precision Cooling Matters

Servers generate constant heat, and unlike a standard office, that heat load does not fluctuate based on the time of day or the season. Data center cooling systems run continuously, and even a short interruption can push rack temperatures past safe limits within minutes. Precision cooling equipment is built for this kind of sustained, exact performance, holding temperature and humidity within a narrow range that standard commercial HVAC was never designed to maintain. Kelley Mechanical sizes and installs systems with this reality in mind, building in redundancy so a single unit failure does not become a facility-wide event.

Facilities We Support

  • Enterprise and colocation data centers
  • Server rooms and network closets in commercial buildings
  • Edge computing facilities
  • Financial, healthcare, and government facilities with mission-critical uptime requirements
  • Facilities transitioning to liquid cooling for high-density computing

Maintenance Programs Built Around Uptime

A missed maintenance visit on a standard commercial rooftop unit might mean a slightly less efficient system. A missed maintenance visit on a CRAC unit can mean a server room that overheats before anyone notices. Kelley Mechanical structures data center maintenance plans around continuous monitoring and scheduled inspections, catching refrigerant issues, airflow problems, and failing components before they cause an outage.

  • Scheduled inspections tailored to your facility's uptime requirements
  • Filter changes, coil cleaning, and refrigerant checks on a defined schedule
  • Documentation and reporting for compliance and internal review
  • Priority emergency response built into every maintenance contract

Frequently Asked Questions

What is the difference between a CRAC and a CRAH unit?
A CRAC (computer room air conditioner) uses a built-in refrigeration cycle to cool air directly, while a CRAH (computer room air handler) relies on chilled water supplied from a separate chiller plant. Kelley Mechanical installs and services both types depending on your facility's infrastructure.

How fast can Kelley Mechanical respond to a cooling failure in our data center?
Mission-critical facilities get priority response. Kelley Mechanical understands that a cooling outage in a server room is a time-sensitive emergency, not a routine service call.

Do you service liquid cooling systems, not just traditional CRAC units?
Yes. Kelley Mechanical services liquid cooling platforms, including immersion and direct-to-chip systems, alongside traditional air-based precision cooling equipment.

Why Data Centers Trust Kelley Mechanical

  • Certified experience across the major CRAC and precision cooling manufacturers
  • Fast emergency response for mission-critical facilities
  • Technicians trained on both traditional CRAC systems and newer liquid cooling platforms
  • Maintenance programs built around uptime, not just routine checkups
  • A single point of contact for installation, service, and emergency support

Contact Kelley Mechanical for certified data center cooling installation and service.