Evaporative cooler installation

Two versions of ECP evaporative coolers are available, for either internal ECP-INT or external ECP-EXT installation. The type of evaporative cooler installation is governed by cost, the building construction, and any local planning restrictions.

External installation of evaporative coolers Installing the evaporative cooler outside the building, either on the roof or an outside wall and using steel ductwork to bring the cool air into the building is the most expensive option, but also the preferred one because it delivers the most effective cooling.

Internal installation evaporative coolers This method should not be confused with evaporative coolers mounted overhead indoors that are supplied with outside air via a metal duct; it refers to evaporative coolers that use air from inside the building. If installation costs or planning restrictions prevent the evaporative coolers from being installed outside, then they can be mounted overhead indoors. This is a cheaper option but the performance of the coolers will be reduced. If overhead evaporative coolers are installed in this way, doors, windows, loading bays, etc. should be left open to provide a constant flow of fresh air.

Ventilation rates

To prevent the build up of hot humid air, which reduces the effectiveness of the cooling process, extractor fans should be mounted in the roof. Or, if this is not possible, as high as possible in the sidewalls.

An extraction rate of at least 3 cubic meters per second (6356CFM) per evaporative cooler is required to maintain the maximum cooling effect.

Under no circumstances should evaporative coolers be installed with the proper rate of ventilation.

W. Tombling Ltd will accept no responsibility for the performance of
evaporative coolers installed without adequate ventilation

Water supply requirements

ECP evaporative coolers should be connected to a mains water supply with a pressure of between 1 and 7 bar. Each cooler uses on average 40 litres of water per hour.

Electricity supply requirements

ECP evaporative coolers require a 230V 50Hz single phase electricity supply capable of supplying a 10A starting, and 5A running current.

Drainage requirements

ECP evaporative coolers have a drain to bleed off contaminated water, this should be connected to a suitable effluent point with a minimum capacity of 2000l/hr, in accordance with local water regulations.

ECP evaporative coolers are designed for quick installation in commercial and industrial buildings. Requiring only a mains water connection, drain connection, and 230V single phase electricity supply they are a simple, safe and low cost way of keeping people and equipment cool inside well ventilated buildings.