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Ventilation and Heat Recovery System
Description
Heat recovery system (Recuperation System) This is a modern mechanical ventilation system that involves the recovery of heat energy by means of a heat exchanger. This process takes place in a special air handling unit (recuperator) equipped with such an exchanger. The principle of operation of the ventilation system with heat recovery is the delivery and heating of fresh air into a residential building with used air, removed from the building through the heat exchanger. Method of operation Recuperation systems are used to reduce energy consumption and daily temperature stabilization inside the building. In addition to heat recovery, recuperation offers many other advantages: the supply of fresh air, reduction of air humidity inside the building, no condensation on windows, no allergens, no insects (flies, mosquitoes), elimination of fungus and mould. Unlike gravity ventilation, mechanical and continuous air exchange is independent of ambient conditions. Mechanical ventilation can be further enhanced using a ground heat exchanger (GHE), in which the air preheats during winter and cools in the summer before entering the house. VENT-FLEX System is the latest ventilation solution for houses, apartments and small-volume buildings. Our VENT-FLEX System consists of flexible ducts, plenum boxes, distribution boxes, by means of which you can quickly and efficiently perform the mechanical ventilation system in compliance with all European Union construction regulations. One of the main advantages of VENT-FLEX is the flexibility of the system, small dimensions that allow installation in ceilings, walls and ceilings. VENT-FLEX: Flexible during installation Available dimensions include: 63, 75 and 90 mm Easy installation – without the need for special tools Completely tight and durable Quiet and efficient High hygiene level of the installation No corrosion – VENT-FLEX system eliminates the need to cut the ducts, for instance, by the use of an angle grinder during the installation, which causes the damage of the protective zinc coating layer and subsequently the corrosion in these places. PRODMAX Air Handling Units are complete ventilation units for filtration and fresh air supply to the rooms, as well as for the removal of polluted air. At the same time, the exhaust air heats the fresh air supplied via a counter-current plate heat exchanger with high heat recovery efficiency. All models are designed for connection with round ventilation ducts.
The important factors for selection of the air handling units for our customers include:
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Heat Exchanger
The most efficient and reliable heat exchanger is cross-, counter-flow polystyrene exchanger with high heat exchange efficiency, with efficiency of 98% of the reputable Dutch RECAIR Company, which has many years of experience, offering its products to the best air handling unit manufacturers in the market.
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Fans
The fans are equipped with the electronically commutated (EC) motors of the renowned German EBM PAPST Company with high efficiency to guarantee reliability and energy-saving quiet operation. They are equipped with the external rotor and backward bent blades. These types of motors are at present the most innovative energy saving solutions. EC motors provide high performance and control over the full range of the fan speed. Undoubtedly, high efficiency reaching 90% is the advantage of the electronically commutated motors.
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By-pass
The offered units are equipped with a bypass, providing room cooling if required, thanks to the direct supply of cool air to rooms from the outside in the summer without the need to replace the heat exchanger with summer cassettes which, from the perspective of time and operation is quite troublesome.
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Regulation
Advanced automation allows for the fine set-up of control panel parameters for the current system and prevailing weather conditions. Continuous fan speed control, setting time schedule, anti-freeze control, by-pass control are just some of the features of the controller to optimise the unit operation.




