| Operation FAQs |
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Should the ProAir system be on all the time?It is recommended that the system runs continuously. This will helpkeep the air fresh and avoid the build up of smells, moisture etc.How efficient is the unit?The heat exchanger is 96% efficient. When the ducts etc are connected to it the system is up to 90% efficient.How much electricity will it use?It is the equivalent of having a 60W bulb on, in an average sizehouse. This works out at EUR 85 approx per annum. This is just a guide,consumption will depend on your house size and usage pattern.What is the payback period?Several factors impinge on this. Among them are the size of the house, how airtight is the house, the number of occupants and how the system is used. Payback can be achieved in seven to ten year period.What are the settings on the switches?Low speed : At this setting the unit will effect an air change every 3 hours.Medium speed: An air change will take place about every 2 hours. Boost: This setting is used to effect an air changeapproximately once an hour. This is particularly useful when a largeamount of water vapour and heat are generated in bathrooms etc. Onceany of the Boost switches are turned on the unit will work at highspeed for a period of 20 minutes and then revert to normal. The lastBoost switch to be activated will determine when the unit will returnto normal working. The duration of the ‘Boost’ can be changed by aProAir technician. Is it a completely dry system or is there a water connection?It is a dry system in that no connection is required to a water supply.Is there a condensation drip pipe or the like and any overflows?Any water that condenses is drained off through a condensate drain. This is a 16mm plastic pipe from the air handling unit that should be connected to a waste pipe within the house.Is the system noisy?No. The air handling unit is acoustically lined. Further it isgenerally hung from the rafters as opposed to being left sitting on thejoists. A distribution box is used to reduce the duct size coming fromthe unit. This box is also acoustically lined. Silencers are insertedto reduce whatever noise there is. At the end of the installationprocess the system is balanced. The result is that customers will notbe aware that the system is working in the background.The system does not have a summer bypass. What can I do to keep the house cool in summer?A HRV system is not a cooling system and can never be, despite whatsome suppliers might claim. A thermostat can be fitted to turn off thesupply fan in summer, thereby giving an energy saving and leaving youwith an extract system to deal with moisture. At this time of the year,thermal efficiency will not be an issue and windows can be opened. |
Brochure
The ProAir brochure outlines the principles of operation of Heat Recovery Ventilation (HRV) and why you should choose a ProAir system. It contains a guide to product selection.
To download it click here.