Home > Companies > Colt International Ltd > CoolStream S evaporative cooling and ventilation system

Coolstream S units use the established principle of evaporative cooling to provide cooled air as part of a balanced ventilation system.

They are configured to integrate within the Coltair modular system of powered ventilation. They can be installed as part of a completely new scheme or retro-fitted to existing systems.

A water quality management system automatically prevents scaling and, when the cooling function is not in use, drains the cooler to prevent water stagnation.

All Coolstream units have an integrated water quality system. Water safely circulates with temperature control and regular renewal of water to avoid the growth of bacteria and scale. CoolStream has been extensively tested and certified hygienically in compliance with VDI 6022 (“Hygienic Requirements for Ventilation Systems and Units for Internal Spaces”). This is a rigorous standard for air conditioning systems and confirms the high quality of supply air.

Features and benefits:

  • Evaporative cooling is up to 90% efficient.
  • Option of EC fans to boost efficiency.
  • Low running and maintenance costs. Only uses about 0.5 to 1 kW per 10,000 m³/h cooled air.
  • Simple and reliable technology.
  • Energy efficient.
  • Simple to use.
  • Option of two speed or variable speed controls.
  • Low noise.
  • High air quality: uses 100% outside air.
  • Environmentally friendly and safe.
  • Free from refrigerants.
  • Integrated water quality control system and VDI hygiene certificate.

Related literature

The following content references this product:

Standard product features

Highly efficient adiabatic system, using the principle of evaporative cooling to provide cooled air as part of a balanced ventilation system, in situations where conventional air conditioning is not cost-effective. Uses full fresh air to maintain good air quality, with integrated water quality control system. Tested to VDI 6022 with an HVAC hygiene certificate. Incorporates either an AC or an EC fan. Suitable for connecting to an air handling / input system such as Coltair.

Options

Size options:

  • Size 10: 9,000 to 15,000 m³/h (2.5 m³/s to 4.2 m³/s).
  • Size 16: 15,500 to 22,500 m³/h (4.3 m³/s to 6.2 m³/s).
  • Size 27: 16,000 to 27,500 m³/h (4.4 m³/s to 7.6 m³/s).

Connection options:

  • Bottom duct connection - where CoolStream S units are installed on to the roof.
  • Side duct connection - where CoolStream S units are combined with alternative HVAC equipment.
  • Top duct connection - where CoolStream S is installed adjacent to a building.

Fan options:

  • Type SA1 - AC two stage fan for CoolStream S 10.
  • Type SC1 - AC two stage fan for CoolStream S 16.
  • Type SD1 - AC two stage fan for CoolStream S 27.
  • Type SE2 - continuous EC fan for CoolStream S 10.
  • Type SF2 - continuous EC fan for CoolStream S 16.
  • Type SG1 - continuous EC fan for CoolStream S 27.

Controls options:

Touch screen controls, temperature and humidity options, BMS connections (enquire from Colt for further info).

Other options/ accessories:

  • Side panel with insect guard.
  • Side panel with either G4, M5 or F7 filter classes in accordance with EN779:2012.
  • “All Seasons” option for ventilation, heat recovery and cooling throughout the year.
  • Other options include internal lighting / light switch, sight glass, pressure display (only when filters are supplied), VDI 6022 certificate.

NBS Specification

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This product is associated with the following NBS Create clause:
90-45-15/310 Air handling unit

NBS Specification

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Product specification

An important note about specifying

Manufacturer

Name:

Colt International Ltd

Tel:

+44 (0)23 9245 1111

Product reference

CoolStream S evaporative cooling and ventilation system

Type

[CoolStream 10]
-
2.5–4.2 m³/s.
[CoolStream 16]
-
4.3–6.2 m³/s.
[CoolStream 27]
-
4.4–7.6 m³/s.

Fans

[Not required]
[Type A]
-
400V two stage for CoolStream 10.
[Type B]
-
230V continuous for CoolStream 10.
[Type C]
-
400V two stage for CoolStream 16.
[Type D]
-
400V two stage for CoolStream 27.
[Type E]
-
400V highly energy efficient EC motor for CoolStream 10.
[Type F]
-
400V highly energy efficient EC motor for CoolStream 16.

Controls

[Touch screen]
[Modem]
[Temperature and humidity sensors]

Connection

[Type A]
-
Bottom duct connection, for use when installed on to the roof.
[Type B]
-
Side duct connection, for use when combined with alternative HVAC equipment.
[Type C]
-
Top duct connection, for use when adjacent to a building.

Accessories

[Coltair inflow unit]
-
Used in combination with the CoolStream unit to provide ventilation, heating and heat reclaim.
[Side panel with insect guard]
[Side panel with G4 filter]

Manufacturer details

Colt House,
Ridgeway Office Park,
Bedford Road,
Petersfield,
Hampshire, GU32 3FQ
Tel +44 (0)23 9245 1111
Fax +44 (0)23 9245 4220
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