When uptime is everything, standard air conditioning is not enough. The Precision Close Control Unit (CCU) is purpose-built to maintain exact temperature and humidity levels in mission-critical environments — where even a minor deviation can result in equipment failure, data loss, or costly downtime.
Available in four distinct cooling configurations, the CCU range delivers unmatched flexibility across a wide capacity spectrum — from 5.9 kW to 156.8 kW — to suit server rooms, data centers, telecommunications facilities, laboratories, and cleanrooms of any size.
Engineered with advanced microprocessor controls, each unit continuously monitors and adjusts cooling output, humidity levels, airflow, and system health — ensuring critical infrastructure operates within precisely defined environmental parameters, 24 hours a day, 365 days a year.
| Product Information | |
|---|---|
| Cooling Configurations | Air-Cooled DX / Water-Cooled DX / Chilled Water / Dual-Cooled |
| Capacity Range | 5.9 kW – 156.8 kW |
| Refrigerant | Eco-friendly low-GWP options available |
| Temperature Control | Precision ±0.5°C or better |
| Humidity Control | Precision ±5% RH or better |
| Installation | Indoor, floor-standing or ceiling-mounted options |
| Applications | Data centers, server rooms, telecom, labs, cleanrooms |
Available Cooling Configurations
1. Air-Cooled DX — 5.9 kW to 132.1 kW
The Air-Cooled Direct Expansion (DX) configuration is a self-contained precision cooling solution that rejects heat via an external air-cooled condenser. Ideal for facilities where water infrastructure is unavailable or undesirable, this configuration offers straightforward installation and reliable performance across a broad capacity range.
2. Water-Cooled DX — 6.6 kW to 138.2 kW
The Water-Cooled DX configuration uses a water circuit to reject heat from the refrigerant cycle, offering higher energy efficiency than air-cooled alternatives — particularly in warm climates. The absence of an external condenser unit makes this ideal for indoor-only or space-constrained installations.
3. Chilled Water — 7.6 kW to 156.8 kW
The Chilled Water configuration connects directly to a building’s chilled water plant, eliminating the need for a separate refrigerant circuit. With the highest capacity in the range — up to 156.8 kW — this option offers exceptional scalability, energy efficiency, and integration with central plant infrastructure.
4. Dual-Cooled (Air-Cooled + Chilled Water) — 23.2 kW to 102 kW
The Dual-Cooled configuration combines both air-cooled DX and chilled water cooling in a single unit, providing built-in redundancy. The unit automatically switches between cooling sources based on availability and efficiency — ensuring uninterrupted operation even if one cooling source fails.
Advanced Microprocessor Controls
At the heart of every Precision CCU is a state-of-the-art microprocessor controller that provides:
- Real-time monitoring of temperature, humidity, airflow, and system alarms
- Adaptive control algorithms that anticipate load changes and respond before conditions drift outside tolerance
- Remote monitoring & BMS integration via Modbus, BACnet, or SNMP protocols
- Alarm management with multi-level alerts for temperature, humidity, filter blockage, fan failure, and high/low pressure faults
- Energy optimisation through intelligent compressor staging and fan speed modulation
- Data logging for trend analysis, maintenance planning, and compliance reporting
- Touchscreen HMI for intuitive on-unit operation and diagnostics
Precise Temperature & Humidity Control
The Precision CCU maintains environmental conditions within extremely tight tolerances:
- Temperature control: ±0.5°C — preventing thermal stress on sensitive electronic components
- Humidity control: ±5% RH — avoiding static discharge (too dry) and condensation (too humid)
- 24/7 continuous operation — designed for always-on environments with no planned downtime
- Fast response time — rapid correction of temperature and humidity deviations before they impact equipment
- Sensible Heat Ratio (SHR) optimised for IT loads — maximising cooling efficiency for heat-dense electronic equipment
Applications
Precision Close Control Units are the preferred choice for environments where temperature and humidity stability is non-negotiable:
- Data Centers — Colocation, enterprise, hyperscale, and edge data centers
- Server Rooms & IT Rooms — Corporate server rooms and network equipment rooms
- Telecommunications Facilities — Base stations, exchange buildings, and NOC rooms
- Laboratories — Research labs, pharmaceutical labs, and testing facilities
- Cleanrooms — ISO-classified environments requiring strict environmental control
- Medical Facilities — MRI rooms, operating theatres, and pharmaceutical storage
- Broadcasting & Control Rooms — Studios, control centers, and dispatch rooms
- Financial Institutions — Trading floors and banking data infrastructure
Why Precision Cooling Is Critical for Data Centers
Standard comfort cooling is designed to maintain human comfort — not protect sensitive electronics. Precision CCUs are essential for the following reasons:
- High Sensible Heat Ratio (SHR): IT equipment generates almost entirely sensible heat. Precision CCUs are optimised for sensible cooling, unlike comfort ACs which waste capacity on dehumidification.
- Continuous 24/7 operation: Comfort ACs are not rated for continuous duty. Precision CCUs are engineered to run non-stop without degradation.
- Tight tolerances: Even a 2°C temperature spike can throttle server performance. Precision CCUs prevent this with rapid response controls.
- Redundancy options: N+1 and 2N configurations available to eliminate single points of failure.
- Airflow management: Designed to integrate with hot aisle/cold aisle containment strategies for maximum cooling efficiency.
