The ECT Internal range of evaporative coolers combine a ventilation system, evaporative cooling, recirculation, filtration and CREC® controls into a single box solution, this design significantly reduces installation costs. ECT units are not suitable for external use and are predominantly used in Data Centre and IT cooling installations.


The ECT10800 is part of EcoCooling’s internal evaporative cooler range, designed for use in data centres as an energy efficient alternative to refrigeration based systems.  The ECT10800 can be configured with a humidification option which was developed for data centres in colder climates such as the Nordics, where very low humidity levels are problematic. The unit has a number of configuration options to accommodate varying installation constraints. The ECT unit is also available in a 5400m3/hr model for smaller IT loads and server rooms.

Technical Specifications

Power Supply 3~400V 50 Hz
Cooling Capacity in Adiabatic Mode 35kW (ΔT of 8°C)
Design Flow Rate 10,800m3/hr
Weight 400kg
Dimensions (h x w x d) 2494 x 1304 x 960 mm
Design Power Usage (60% fan speed):
Cooling Mode
Ventilation Mode
Fresh Air Intake Size (h x w) 1100 x 320mm
Recirculation Air Intake Size (x2) 300 x 600mm

Installation Requirements

  • 3 phase power supply
  • Fresh air intake
  • ½” BSP mains water supply
  • 32mm gravity drain pipe
  • Room sensor (temperature and relative humidity)
  • Pressure relief vent or extract fan

Modes of Operation:

Attemperation Mode: In attemperation mode, cold supply air is mixed with warm recirculated air via a damper on the top of the unit, this allows closer control of temperatures for IT environments.


Ventilation Mode: In ventilation mode, the water circulation system is not in operation.  The coolers supply fan is used to deliver external ambient air into the building.


Cooling Mode: In cooling mode, the water circulation system is in operation and the cooling pads are wetted. The evaporation of water from the pads results in a reduction in air temperature via evaporative cooling.


Core Features

The ECT10800 internal evaporative cooler is shipped in two parts, the main cabinet and a separate filter plinth which is configurable.

EcoCooling Control System: The unit is controlled via a touchscreen user interface. Functionality includes logging of performance data and faults, altering of system parameters, a functional test routine and password protection. The software can be managed through an ESCROW account.

Dynamic Control: A consistent supply temperature is achieved year round by mixing cool air with warm recirculated air. Adjusting the speed of the supply fan keeps the exhaust temperature constant.

Efficient Fan: A 630mm FE2owlet EC (Electronically Commutated) fan drives the airflow. Use of EC fans results in significantly quieter and more energy efficient operation than AC alternatives.

EU4 Filtration: The airflow is subject to EU4 filtration both at the fresh air intake and at the point of supply.

Configuration Options – Plinths: The cooler supplies air through a filter plinth.  The front flow plinth is designed to deliver air through a deflection grille straight into the room. Alternative plinth panels and filters can be supplied which allow for side flow or connection of duct work.

Simple Servicing: The internal evaporative cooler should be serviced quarterly. Three stages are involved in a routine visit:

  • Running a test routine to check the functionality of all components;
  • Cleaning the cooling module with fresh water;
  • Inspection and changing of filters if required.

All core components are situated at the front of the machine, just inside the cabinet doors and any of the electrical components can be changed in 30 minutes.

Commissioning and Servicing

EcoCooling offers a commissioning service which is completed after installation of the ECT10800 unit and inbuilt CREC® control system.  It is recommended that the cooler is serviced every 3 months. Standard EcoCooling components are used, which are available ex-stock.

Performance in IT and Data Centre Environments

The serviceable cooling load is dependent on the following factors:

  • Temperature rise between supply and exhaust (ΔT in the table below)
  • Volumetric air flow rate (10,800m3/hr)
Temp Rise, ΔT 5°C 7.5°C 10°C 12.5°C 15°C
Serviceable cooling load (kW) 18 27 36 45 52

Energy Usage – Internal Evaporative Cooler

The table below outlines the cost comparisons of the ECT10800 internal evaporative cooler with traditional DX (Direct Expansion) and CW (Chilled Water) air-conditioning systems. For more information see our Savings page.

System Design: 36kW cooling load. Electricity at 10p/kWhr.  Water £1.00 m3. London location. 24/7 usage.

Type of Cooling System Typical COP Effect on PUE Energy Use (kW) Water Used in
Evaporation (m3 /yr)
Annual Running Cost
ECT10800 39 0.026 0.9 40 £828.40
Direct Expansion CRAC 2 0.5 17.5  0 £15,338
Chilled Water CRAC 3 0.33 11.6 0 £10,167

Additional Information:

Worried you don’t have enough space in your room for an internal unit? See our ECP product range for an external alternative?  Only interested in free cooling and don’t want supplementary evaporative cooling, see our ECV product ranges for our FreeCoolers.