HumEvap MC3 - evaporative humidifier/cooler

Raising the humidity by passing air through a wetted matrix is a simple and safe way to humidify – with the added benefits of very low running costs and evaporative cooling.

At the heart of the HumEvap MC3 is the evaporative module, which is installed in an AHU or duct. Water is supplied to the top of a fully bonded particle free matrix and flows down its corrugated surface. Dry air passes through this moist material picking up water vapour, raising the humidity as it does so. This process consumes very little energy, far less than steam humidifiers or even cold water atomisers.

The water that doesn’t evaporate assists in washing the matrix material and flows into a stainless steel tank at the base of the unit before being re-circulated up on to the matrix again.

The HumEvap MC3 offers up to 12°C of cooling and a very economical alternative or supplement to mechanical chillers. As the air passes over the cool, wet surface of the HumEvap MC3 evaporative matrix, there is a transfer of energy as the water evaporates.

Evaporative cooling is not a substitute for air conditioning as there are still some instances where direct mechanical cooling is required. However, the HumEvap MC3 provides free-cooling and reduces the overheads of DX chiller units, as well as the benefit of humidification in winter when the air is cool and dry.

The HumEvap MC3 is easy to install as it has only three simple connections for the services: a gravity drain with integrated overflow, a direct water connection to the evaporative module and a power connection to the control panel.

The only other connections that have to be made are two compression fittings to the
PureFlo Ag+ silver ion dosing system and the evaporative module is ready for commissioning.

The evaporative module is pre-wired with 10 metres of 12-core flexible cable as standard allowing the control panel to be situated at a distance from the evaporative module if required.

As well as being easy to install, this humidifier/cooler is powered by a single phase electrical supply.

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Figures are based on a 98kh/hr unit operating 2,000 hours per year. Energy priced at £0.05kW/h for electricity and £0.01kW/h for gas

The HumEvap MC3 uses less than 0.5kW making it much cheaper to run than other humidifiers and much better for the environment.

The HumEvap MC3 microprocessor control system is located outside the AHU, up to 100m away from the evaporative module. The compact system gives digital control over desired relative humidity or temperature levels, flush, drain and other water quality maintenance features.

The system can be timer controlled to activate only during hours of occupancy. Comprehensive real-time feedback shows current relative humidity and temperature, demand, hours run, system operating status and whether maintenance is required.

The whole system is easy to set-up, has multi-lingual options and is security code protected.

Due to its modular design, the HumEvap MC3 can be built to suit any AHU/duct size.