Product Overview
Dual Cool AC, commonly referred to as a dual-cool CRAC (Computer Room Air Conditioner) unit, is a high-reliability precision cooling solution specifically designed for data centers, server rooms, and mission-critical environments. As the name suggests, a dual-cool system integrates two independent cooling sources within a single unit, providing an exceptional level of redundancy and operational flexibility.
The system typically combines a chilled water system as the primary cooling source with a direct expansion (DX) air-cooled system as a backup. Under normal operating conditions, the highly efficient chilled water system handles the cooling load, leveraging the facility's central chiller plant for optimal energy performance. In the event of a chilled water supply interruption, equipment failure, or during maintenance, the system automatically and seamlessly switches to the independent DX system to ensure uninterrupted cooling. This dual-redundant architecture delivers the highest level of reliability, achieving up to 99.999% availability for critical IT equipment.
The unit delivers temperature control accuracy of ±1℃ and humidity control accuracy of ±5%.
Applications
- Tier III & Tier IV Data Centers
- Financial Institutions & Banking Data Centers
- Government & Defense Facilities
- Healthcare & Hospital Data Centers
- Telecommunications Core Switching Stations
- Any Mission-Critical Facility Requiring 24/7 Cooling Reliability
Key Features
Dual Independent Cooling Sources
The unit integrates two completely independent cooling systems: a primary chilled water system and a backup direct expansion (DX) system. Each system is capable of handling the full cooling load independently, ensuring uninterrupted operation even if one source fails.
Automatic Seamless Changeover
Equipped with intelligent controls that continuously monitor the status of both cooling sources. In the event of a chilled water failure, the system automatically and seamlessly switches to the DX system without any interruption to cooling, protecting critical IT equipment from temperature excursions.
High Sensible Heat Ratio Design
Optimized for high-density data center environments with a sensible heat ratio ≥0.9, dedicating the majority of cooling capacity to directly reducing air temperature while avoiding energy waste from excessive dehumidification.
Precision Environmental Control
Equipped with high-precision sensors and intelligent controllers for real-time monitoring and regulation of temperature and humidity, maintaining environmental parameters within the optimal range for equipment operation. Supports integrated multi-function control including heating, humidification, dehumidification, and air filtration.
High Reliability & Redundancy
Built with rigorously tested, high-quality components, engineered for 24/7 continuous operation with long service life and low maintenance requirements. The dual-cool architecture provides N+1 redundancy at the cooling source level, ensuring system availability remains intact in the event of a single point of failure.
Smart Control & Management
Equipped with true-color touchscreen displays, multi-level password access control, and self-diagnostic system functions. Comprehensive monitoring and display of key parameters including power supply voltage, frequency, cooling capacity, airflow, and temperature/humidity trends. Supports group control of multiple units with advanced features including scheduled rotation, fault-based rotation, cascading, and demand synchronization. Compatible with Building Management Systems (BMS), with communication protocols flexibly configurable based on project requirements.
Flexible Deployment
Supports multiple airflow configurations including upflow and downflow to accommodate various room layouts such as raised-floor underfloor supply and ceiling return air. Suitable for both new installations and retrofits where the highest level of cooling reliability is required.
Applications
- Tier III & Tier IV Data Centers
- Financial Institutions & Banking Data Centers
- Government & Defense Facilities
- Healthcare & Hospital Data Centers
- Telecommunications Core Switching Stations
- Any Mission-Critical Facility Requiring 24/7 Cooling Reliability
Note: The above system description serves as a reference for standard functionality and architecture, intended to demonstrate core capabilities. Actual project solutions require customized design based on facility scale, cooling source conditions, heat load characteristics, and client requirements. Specific equipment configurations, cooling capacity ranges, and detailed parameters are subject to project-specific selection. For detailed technical data or selection assistance, please contact us through any of the channels listed on our "Contact Us" page. Our technical team will provide tailored recommendations based on your specific project needs.
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