Mechanical ventilators & HVAC products

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CoolStream S evaporative cooling system

CoolStream S provides low-cost adiabatic / evaporative cooling and ventilation principally for larger industrial and commercial premises, and has been hygienically tested and certified to VDI 6022. CoolStream S helps keep larger internal spaces pleasantly cool all year round. It doesn’t need to cost the earth: using the cooling power of water, it’s possible to achieve low energy cooling.

CoolStream S is especially suited to those buildings which require a cost-effective cooling system for larger spaces, whether industrial or commercial, which do not require an absolutely constant internal temperature at all times.

It is especially effective for conditioning areas which produce a fair degree of heat. Its applications are very wide and include plastics, metal and food industries, warehouses, data centres, transformer buildings, exhibition halls and shopping malls. In addition, CoolStream can be used for air humidification, for example in the paper and printing industry. Heat is normally removed at high level via natural ventilators, providing a pleasant temperature at the working area.

The alternative Coolstream N combines the principle of evaporative cooling with natural ventilation, which is particularly suitable for use in heat intensive industries.

  • Highly energy and water efficient - CoolStream S units consume only around only around 1kW and 50 litres of water per 10,000m³/h of supplied air, equivalent to more than 30 kW cooling power, depending on the configuration chosen. Energy consumption can be further reduced with the use of EC fans. Evaporative cooling is 4 to 7 times more economical to run than conventional air conditioning systems, and is at a lower initial investment.
  • Efficient cooling - At an ambient temperature of above 30°C, the air can cool down adiabatically by at least 10°C, resulting in very efficient cooling. At lower ambient temperatures the adiabatic process still works very well.
  • Low running and maintenance costs
  • Simple and reliable technology
  • Low noise
  • High air quality: option to filter the incoming outside air.
  • Environmentally friendly and safe: free from refrigerants 
  • Water quality control - Integrated water quality control system and tested to VDI 6022 with a VDI hygiene certificate, thus the highest degree of hygiene.
  • Design service - Colt provides a pre-order design service. With the help of the most advanced CFD calculations, Colt can provide support right at the start of the project and thereby provide definitive information as regards the expected performance and conditions within the conditioned space. Please contact Colt for more information relating to the application, specification, installation or servicing of CoolStream systems.
CoolStream N evaporative cooling system

CoolStream N provides low-cost adiabatic / evaporative cooling and ventilation principally for larger industrial premises with higher heat loads, such as power generation plants and other heat intensive industries.

CoolStream N helps keep larger internal spaces cool all year round. It doesn’t need to cost the earth: using the cooling power of water, it’s possible to achieve low energy cooling. Since it uses natural ventilation, no energy is consumed to power fans. However if it is necessary to boost the air flow and cooling capacity from time to time, optioned EC fans can be integrated into the system.

CoolStream N is based on CoolStream S technology. CoolStream S provides an alternative means of evaporative cooling by using fans to create the air flow.

Low level inlet draws in cool outside air. Heat is normally removed at high level via natural ventilators, providing a pleasant temperature at the working area.

For further details, view the PDF

Demonstration video (English)

Demonstration video (deutsch)

  • Highly energy and water efficient – A huge potential geometric face area (maximum of 20 m2 per unit), thus there is a big air flow with one unit. CoolStream N units consume only around only around 1kW and 50 litres of water per 10,000m³/h of supplied air, equivalent to more than 30 kW cooling power, depending on the configuration chosen. Evaporative cooling is 4 to 7 times more economical to run than conventional air conditioning systems, and is at a lower initial investment.
  • Efficient cooling - At an ambient temperature of above 30°C, the air can cool down adiabatically by at least 10°C, resulting in very efficient cooling. At lower ambient temperatures the adiabatic process still works very well.
  • Low running and maintenance costs
  • Simple and reliable technology
  • Capacity enhancement option - virtually silent EC fans can be added to boost air flow and cooling capacity.
  • High air quality - option to filter the incoming outside air.
  • Modular design – flexible in design and installation
  • Environmentally friendly and safe - free from refrigerants
  • Water quality control - Integrated water quality control system and tested to VDI 6022 with a VDI hygiene certificate, thus the highest degree of hygiene.
  • Design service - Colt provides a pre-order design service. With the help of the most advanced CFD calculations, Colt can provide support right at the start of the project and thereby provide definitive information as regards the expected performance and conditions within the conditioned space. Please contact Colt for more information relating to the application, specification, installation or servicing of CoolStream systems.
CoolStream R rooftop evaporative cooling system

CoolStream R is suitable for the air conditioning of larger industrial, semi-industrial and commercial spaces. It is a "plug and play unit", developed and manufactured by Colt and supplied ready for connection to services. Cooling, heating, heat reclaim, air filtration and ventilation are all combined within one unit.

The fact that it is installed on the roof saves large amounts of space inside. There are various filter classes and types of heaters (hot water, gas or electric) with different power levels to choose from. As a result it can be configured to meet the requirements of many kinds of projects.

CoolStream R Datasheet

Demonstration video (English)
 
Demonstration video (deutsch)

How the CoolStream R “all seasons” unit works:

  • In the summer energy-saving EC fans draw in up to 20,000 m3/h (5.6 m3/s) warm outside air. This air flows through the evaporative cooling unit and is cooled down by up to 15°C and filtered and brought into the building. The room air heats up and is removed from the room either by a natural or a mechanical exhaust ventilator.
  • In spring and autumn heat is recirculated as outdoor air is mixed with warmer room air. This mixed air is at a pleasant temperature and is filtered before being brought into the building. The total amount of outside air needed is reduced to the level which is needed within the building, thereby saving significant energy costs.
  • In winter the air heater is used. The proportion of outdoor air is reduced to a minimum to necessitate as little heating energy as possible. Again the outdoor air is filtered and then drawn by the fans through the heater. The mixed air is heated pleasantly distributed to the inside of the building, and so the interior is heated up.
Coltair industrial air conditioning unit

The Coltair industrial air conditioning unit is a mechanical air supply system which brings fresh outdoor air through the roof or the facade of the building.

Internal air can be mixed with this outdoor air or it can be completely re-circulated, or fresh air introduced to the working area below. Where heating is required, the supply air is reheated by an additional heating coil. Where cooling is required, this is normally achieved by combining it with a Colt Coolstream evaporative cooling system.

The Coltair industrial air conditioning unit is well suited to industries such as plastics, metal or food, or for installation in warehouses and retail sheds. It is also well suited for combining with a Colt Coolstream evaporative cooling system as an air input unit.

  • Extended ventilation capability - Coltair can also be used to exhaust stale air or fumes from specific areas or processes. Where an optional heat recovery unit is installed, this can lead to high efficiencies.
  • Robust, reliable and durable - Coltair is mostly made from durable aluminium, which is very resistant to corrosion and extremely lightweight compared to steel. Minor parts are made either from galvanised steel or stainless steel.
  • A wide range of size options and accessories - The modular components include roof or wall inlet assemblies, various lengths and configurations of ducting, air recirculation units, filter modules (up to F9 class), hot water heater batteries, various kinds of sound attenuators, axial or centrifugal AC or high energy efficiency EC fans, and various kinds of air projectors.
  • Easy retrofit - It can be extended or retrofitted at any time after installation. 
  • Design service- Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of Coltair systems.
Caloris water source heat pump

Caloris is a water source heat pump system with de-centralised local control. It provides both heating and cooling within a compact unit with low running costs. It is particularly well suited to health buildings, offices and hotels.

It can be part of a hybrid system that switches automatically from natural to mechanical means of conditioning the space, depending on the conditions or season of the year, thereby reducing energy costs.

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  • Safe, highly efficient water based system - no F-Gas obligations
  • Efficient - High unit COP (up to 4.3). Neutral temperature of water system (between 15°C and 30°C) and potential use of the building mass or a water reservoir as a buffer system, thus relatively low energy input.
  • Flexible – The system allows unlimited number of units to be installed, with unlimited flexibility for future expansion. There are individual room controls for heating and cooling.
  • Low installation costs - Uninsulated two pipe plastic piping system
  • Low noise levels
  • Design service - Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of Caloris systems.
Liberator powered smoke extract ventilator

Liberator extracts smoke and hot gases in the event of a fire. It is suited to most industrial and commercial buildings and can provide both day to day and smoke ventilation. It fulfills the time/temperature requirements of EN 12101-3, achieving F200 (200°C/120 min), F300 (300°C/60 min) and F400 (400°C/ 120 min) in accordance with EN 12101-3.

  • Suitable for either roof or wall
  • Shutter, flap or louvred ventilator as termination
  • Robust, reliable and durable – made from aluminium
  • Low power consumption
  • Tested and certified to EN 12101-3
Tornado powered extract ventilator

Tornado is designed to deal with localised air quality and overheating problems as well as to provide general comfort control. It is suited to most industrial and commercial building and is available in two sizes in both 50 and 60 Hz versions. Tornado produces airflows of between 1.5 m³/s and 5.5 m³/s. Its noise output ranges from 48 to 68 dB(A) at 3m. An optional non-return shutter opens when the fan is in use and closes when the fan stops running. The ventilator can be orientated at any angle from the horizontal to the vertical.

  • Optional non-return shutter opens when the fan is in use and closes when the fan stops running
  • Robust, reliable and durable – made from aluminium
  • Low power consumption
  • 630mm nominal fan size with low noise option, 800mm nominal fan size with high volume extract option
  • Standard 50 Hz with an alternative Export 50 / 60 Hz dual version
  • Lightweight. The 630mm version can be installed into glazing
  • Can be installed at any angle from horizontal to vertical.
  • Manufactured to the ISO 9000 quality and ISO 14001 environmental standards
  • Design service - Colt provides a pre-order design service. Please contact Colt for more information relating to the application, specification, installation or servicing of Tornado systems.