Your data center is the backbone of your operation — and its cooling system is the most critical component you never think about until it fails. At Alphas Heating & Cooling, we specialize in data center AC service, repair, and replacement for mission-critical facilities across Arizona. We understand that downtime isn't an option — which is why we offer 24/7 emergency response, precision diagnostics, and lifecycle support for all major precision cooling systems.
From Liebert, STULZ, and Vertiv units to CRAC, CRAH, and liquid cooling systems, our certified technicians are trained to keep your environment within ASHRAE-recommended temperature and humidity ranges — protecting your hardware, your data, and your business.
Serving data centers across Arizona — from Phoenix to Mesa, Chandler to Scottsdale. 24/7 emergency response available.
Free site assessments | Precision cooling specialists | Rapid parts sourcing
⚡ The Stakes Are Higher. Unlike residential or standard commercial AC, data center cooling systems must maintain 99.999% uptime and run 24/7/365[reference:0]. A single failure can cost thousands per minute in lost revenue, damaged equipment, and compromised data. We treat every service call with the urgency it deserves.
Compressor failure is one of the most common and costly issues in precision cooling systems. Symptoms include loud noises, high discharge pressures, and inadequate cooling. We diagnose and repair or replace compressors on Liebert, STULZ, and other major brands.
Even small refrigerant leaks can reduce cooling capacity and cause the system to run inefficiently. We use electronic leak detectors to locate and repair leaks, then recharge to manufacturer specifications.
EC (electronically commutated) fans are critical for airflow in CRAC and CRAH units. When they fail, hot spots develop, and equipment overheats. We replace fan motors and controllers with OEM or equivalent parts.
Uptime requirement for mission-critical data centers[reference:1]
Traditional air cooling limits per rack[reference:2]
AI workloads requiring liquid cooling[reference:3]
AI data centers are pushing cooling demands beyond traditional air systems. As rack densities increase, hybrid air/liquid cooling strategies are becoming the standard[reference:4]. We're equipped to support both.
Expert diagnostics and repair for CRAC, CRAH, chillers, and liquid cooling systems. We work on all major brands including Liebert, STULZ, Vertiv, and APC[reference:5].
Scheduled maintenance plans designed to maximize uptime and extend equipment life. Includes filter changes, belt inspections, coil cleaning, and controls calibration[reference:6].
Full lifecycle support — from equipment selection and removal to installation and commissioning. We handle everything from individual CRAC units to entire chiller plants[reference:7].
As AI workloads drive higher densities, liquid cooling is becoming essential[reference:8]. We support coolant distribution units (CDUs), cold plates, and rear-door heat exchangers[reference:9].
Specialized cooling solutions for AI and high-performance computing (HPC) environments. We design and maintain hybrid air/liquid systems for maximum efficiency and reliability.
Cooling failures don't wait for business hours — and neither do we. Our team is available 24/7/365 for emergency repairs, with rapid dispatch and fully stocked service vehicles[reference:10].
Swipe → to see our full range of data center cooling services.
We are certified and experienced in servicing all major precision cooling manufacturers, including:
We also support liquid cooling systems, including coolant distribution units (CDUs), cold plates, and rear-door heat exchangers[reference:11].
Cooling failures don't follow a 9-to-5 schedule. We're available around the clock to restore your environment and protect your hardware.
Our technicians are trained on precision cooling systems, including Liebert, STULZ, and Vertiv units. We understand the unique requirements of mission-critical environments[reference:12].
We carry common parts on our trucks and have relationships with major manufacturers to source hard-to-find components quickly[reference:13].
From installation and commissioning to maintenance, repair, and replacement — we provide end-to-end support for your cooling infrastructure[reference:14].
We understand that downtime is expensive. We work efficiently and coordinate with your team to minimize disruption to your operations.
No hidden fees, no surprise charges. You receive a detailed, itemized quote before any work begins.
Swipe → to see why data center operators trust us.
Data center cooling is fundamentally different from standard commercial HVAC. Here's how we approach it:
Data center equipment requires strict environmental control — typically 64–81°F and 40–60% relative humidity. We calibrate and maintain systems to meet these exact specifications, protecting your hardware from thermal stress and static discharge.
N+1 redundancy is standard in data centers — if one unit fails, another takes over. We design, install, and maintain systems with redundancy in mind, ensuring your cooling infrastructure is as resilient as your IT infrastructure.
Cooling accounts for up to 40% of a data center's energy consumption. We help you optimize your systems for maximum efficiency — reducing PUE, lowering operational costs, and meeting sustainability goals.
AI and HPC workloads are pushing rack densities beyond what traditional air cooling can support[reference:15]. We design and maintain hybrid air/liquid cooling systems that scale with your growing compute demands.
Data center cooling systems are designed for precision temperature and humidity control, 24/7/365 operation, and 99.999% uptime[reference:16]. Unlike standard commercial AC, they use advanced controls, redundancy, and are built to handle high-density, mission-critical loads. Standard commercial systems are not designed for the continuous, precise operation that data centers require.
CRAC (Computer Room Air Conditioner) units use refrigerant-based cooling (DX — direct expansion). CRAH (Computer Room Air Handler) units use chilled water from a central plant. CRAC units are self-contained and often used in smaller facilities, while CRAH units are more efficient for larger data centers. We service both types, as well as hybrid systems.
We recommend quarterly preventive maintenance for critical cooling systems. This includes filter changes, coil cleaning, belt inspections, refrigerant checks, and controls calibration[reference:17]. More frequent maintenance may be needed for high-density environments or facilities with dust-prone locations.
Yes. As AI workloads drive rack densities beyond 30–50 kW per rack, liquid cooling becomes essential[reference:18]. We support coolant distribution units (CDUs), cold plates, rear-door heat exchangers, and direct-to-chip cooling. Our team is trained on both air and liquid cooling systems[reference:19].
We service all major brands, including Liebert, STULZ, Vertiv, APC, Emerson, Munters, Daikin, Carrier, Trane, and nVent. We also work on less common brands and custom-built systems[reference:20]. Our technicians are factory-trained and certified on these systems.
We offer 24/7/365 emergency response for data center cooling failures[reference:21]. Our technicians are on standby and can typically be on-site within 2–4 hours for emergency calls in the Phoenix metro area. We prioritize mission-critical facilities and coordinate with your team to minimize downtime.
First, call us immediately at 480‑709‑5684. While waiting, check for obvious issues like tripped breakers or blown fuses. If possible, deploy portable spot coolers to prevent overheating[reference:22]. If you have redundant systems, ensure they're operating. Do not attempt to repair the unit yourself — data center cooling systems are complex and require specialized training.
Costs vary widely based on the issue, system size, and parts required. Simple repairs like capacitor or fan motor replacement may range from $500–$2,000. Compressor or major component replacements can cost $5,000–$20,000 or more. CRAC unit replacements typically start around $15,000–$30,000 per unit[reference:23]. We provide detailed, itemized quotes before any work begins.
With proper maintenance, CRAC and CRAH units typically last 15–20 years. Chillers can last 20–25 years. However, as cooling demands increase with higher-density workloads, many facilities are upgrading sooner — especially to support AI and HPC applications[reference:24]. We can help you assess whether repair or replacement is the better long-term investment.
Yes. We provide consultation, design, and installation services for new data center cooling systems[reference:25]. We work with your engineering team to design systems that meet your specific load requirements, redundancy needs, and efficiency goals. We also support retrofits and upgrades to existing facilities[reference:26].
Your data center's cooling is too critical to trust to anyone else. Whether you need emergency repair, preventive maintenance, or a full system replacement, Alphas has the expertise to keep your facility running.
Call or Text Vanessa & Leo Today: 480‑709‑5684
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