Specialist in Climate Control Since 1945

Mark Heat Recovery System for swimming pool areas

Down to innovative custom designs to suit swimming pool areas and the use of the latest most efficient components and technology there are a number of advantages with the Mark Eire Swimming Pool Heat Recovery Ventilation Units.

The principle of our Heat Recovery System is as follows: we introduce fresh air from outside and pass it through a filter to clean it. It then passes through a heat recovery block and a water based heating coil for cold weather and in to your pool hall. On the extraction side we remove some air from the pool hall and pass it across the same heat recovery block. This transfers up to 90% of the heat energy in to the fresh air stream. In the event of the pool hall being quiet or during the night we can reduce the amount of fresh air even further to save money. We automatically continue monitoring the pool hall humidity which in turn regulates the humidity loss.

We can also recycle up to 100% of the air if humidity and chlorine level allow it. We don’t use refrigerant gasses or compressors within our unit which results in lower maintenance and less service.

Advantages of the Mark Heat Recovery System for swimming pool ventilation

• The Plug Fans are directly driven from the motor and operates at 63% efficiency.

• With Direct Driven Fans low maintenance is involved. There are no drive belts to wear and crack.

• With the implementation of the new ERP directive governing motors, according to EN 60034-30 all new motors must comply with IE2 or EFF1 standard which is the high efficiency motors. Manufacturers can vary but the new motors are roughly 7% to 12% more efficient than older motors.

• With the use of invertor speed drives the system will only use the power that is required to get the job done. For example let’s say we are using a 3 kW Motor but the power required to get the job done is only 2.5 kW. The invertor will change the frequency and only use 2.5 kW even though the motor is rated at 3 kW. With variable speed drives it is easy to vary outputs to match the load or the conditions.

• With the use of latest technology and quality controls we can further reduce energy consumption on both electrical power for the motor and energy to heat the air. For example we use humidity sensors to monitor the amount of moisture within the pool space. As anyone involved in the pool industry may have observed, the moisture levels can drop within a pool space area during quiet spells and by night, due to non-disturbance of the pool water resulting in less water evaporation. When our humidity sensors detect this it sends a signal to the fan motors to slow down reducing the amount of air hence reducing the electrical power consumed as explained in the above point and also reducing the heating energy load. The level by which this can be reduced is very much dependant on the specific pool. One might ask why not switch the units off by night to save more electricity? This may not be possible due to excessive build-up of moisture within the space due to water evaporation but more so due to an excessive build-up of chloramines in the pool air.

For more information about the Mark products suitable for swimming pool areas, please see:

Airstream: plug & play heat recovery unit
AHU: indirect fired air handling units

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