Easy, efficient mounting The Recair Sensitive has flat sides, side-profiles and flanges around the inlet- and outlet-air connections that allow easy and airtight integration into the heat recovery unit. The Recair duct counter flow Sensitive series accomodate two flows through the heat exchanger. One flow loses heat to the benefit of the opposite flow. In all circumstances there is a possibility that the flow losing heat shows condens ation set off to the heat exchanger interior. This condensation must be drained to the exterior and washed away into the sewage. In order to assure an optimum drainage of condensed moisture from the heatexchanger, three mounting orientations of the cell into the heat recovery unit are to be considered (See Fig. 7, 8, 9). Directions for storage, assembly and use 1 Avoid any exposure to direct or indirect UV light, e.g. sunlight. 2 Recair heat exchangers are made of Polystyrene. Polystyrene is not known for its resistance against chemicals. 3 Operating temperatures: Recair Sensitive air to air heat exchangers may be exposed to temperatures between -30 and +50 °C. 4 Heat exchangers may only be removed from the apparatus by pulling the plastic strip running over the heat exchanger. 5 Exhaust and fresh air should be filtered at G4 class to keep the exchanger interior clean from pollution. 6 No cleaning with fluids only careful dust removal from air intake surfaces with a household vacuum cleaner. 7 Recair heat exchangers can have an internal leak. Maximum of 25 litres/minute of air at a pressure difference of 250 Pa. Under circumstances this leakage of air also could result in some leakage of condensation. For this reason, the air flow that loses heat should always be pointed downwards. In this way, the condensation will quickly be removed. Please note when mounting orientation as shown in figure 9 is preferred, the tag should always be on top. (See Fig. 9) 8 Pressure difference between the two flows may not exceed 2000 Pa to avoid irreversable mechanical damage to the heat exchanger. 6 Pagina 5

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