Water-Cooled Precision Air Conditioners
Precise Temperature and Humidity Control for Critical Areas
Water-cooled precision air conditioners are precision cooling units designed for technology centres, IT rooms, UPS rooms, data-centre support areas and specialised spaces requiring temperature and humidity control.
Their water-cooled operating principle provides efficient and stable conditioning in facilities with a chiller or central chilled-water infrastructure. EC fans, upflow or downflow configurations, an optional front-discharge plenum box, a three-way modulating valve and energy-saving functions provide reliable operation in critical areas.
EC Fan as Standard
Energy-efficient EC fan construction can be supplied as standard on all water-cooled precision air-conditioning units.
Upflow / Downflow
Available in upflow or downflow versions according to the air-distribution design of the room.
Modulating Valve
A three-way controlled modulating valve manages cooling capacity precisely according to demand.
What Is a Water-Cooled Precision Air Conditioner?
A water-cooled precision air conditioner is a specialised air-conditioning system that uses a central chilled-water circuit and precisely controls temperature and humidity in critical areas. Unlike standard comfort air conditioners, continuous operation, tight temperature tolerances, a high sensible heat ratio and automation integration are prioritised.
Technology centres, IT rooms, UPS rooms, data-centre support areas, laboratories and sensitive process areas require stable ambient temperature and relative humidity for equipment safety. Water-cooled precision air conditioners meet this requirement through integration with chillers or central cooling infrastructure.
Operating Principle of Water-Cooled Precision Air Conditioners
Room-Air IntakeWarm air from the critical room is drawn into the unit through the return-air section.
Chilled-Water CoilAir passes through the chilled-water coil, transferring its heat load to the water circuit.
Modulated Flow ControlWater flow and cooling capacity are precisely controlled by a three-way valve or an optional two-way valve.
EC-Fan Air DistributionConditioned air is supplied to the room through upflow, downflow or front discharge with a plenum box.
Key Technical Features
Technical Information Table
| Technical Feature | Description | Application Note |
|---|---|---|
| Product type | Water-cooled precision air conditioner | Used for temperature and humidity control in critical areas. |
| Application area | Technology centres, IT rooms and specialised areas | Applied where continuous operation and precise climate control are required. |
| Fan type | EC fan | Can be supplied as standard on all units. |
| Supply-air direction | Upflow or downflow | Selected according to the room air-distribution design. |
| Front discharge | Optional with plenum box | Can be considered for areas without raised floors or duct connections. |
| Control valve | Three-way controlled modulating valve | Used for precise cooling-capacity management. |
| Optional valve | Two-way modulating valve | Can be preferred according to pump energy and flow-control strategy. |
| Maximum power function | Operating mode intended to increase cooling capacity and SHR | Provides an advantage in IT rooms with high sensible heat loads. |
| Energy-saving function | Operating mode designed to improve system efficiency | Helps reduce operating costs at partial loads. |
Airflow and Installation Options
| Option | Description | Application Area |
|---|---|---|
| Upflow | Conditioned air is supplied from the top of the unit. | IT rooms requiring overhead air distribution. |
| Downflow | Conditioned air is supplied beneath the raised floor. | Data centres, IT rooms and rack-cooling applications. |
| Front discharge | Air distribution from the front of the unit with a plenum box. | Technical rooms without raised floors and local cooling needs. |
Operating Functions
Application Areas
Advantages of Water-Cooled Precision Air Conditioners
Application Note
When selecting a water-cooled precision air conditioner, the room heat load, target temperature and humidity range, chilled-water inlet and outlet temperatures, water flow rate, valve type, supply-air direction, raised-floor condition, redundancy requirement, automation integration and service access should be considered together.
Get Technical Support for Water-Cooled Precision Air Conditioner Selection
Water-cooled precision air-conditioner selection should be based on chiller infrastructure, room heat load, water flow rate, valve control, air-distribution direction and the redundancy scenario.
Request a project-based technical evaluation for water-cooled precision air-conditioning solutions for technology centres, IT rooms, UPS rooms and critical areas requiring temperature and humidity control.
