Related Manuals for Airflow DV 90 SE R
Summary of Contents for Airflow DV 90 SE R
- Page 1 • 1.09.332E • 10.4.2009 • Code 3520 SUPPLY AND EXTRACT AIR VENTILATION WITH HEAT RECOVERY MODELS: DV 90 SE R DV 90 SE L DIGIT ELECTRONIC CONTROLLER WITH LCD DISPLAY...
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Page 2: Table Of Contents
Models ded mainly in the following circumstances: The letter L or R after the name of the unit indicates the handedness of the unit. DV 90 SE R • Taking a bath: • With direct current fans Boost ventilation in bathing and washing... -
Page 3: Three Questions About Ventilation
DV 90 SE THREE QUESTIONS ABOUT VENTILATION THREE QUESTIONS ABOUT VENTILATION SEASONAL CALENDAR 1.1. Why is air replaced in dwellings? Autumn Good ventilation promotes healthy living for both residents and the building. Air in a dwelling needs to • Wash or change the coarse filter and clean be replaced in order to remove humidity brought about by living as well as impurities or change the fine filter if needed. -
Page 4: Instructions For Use Dv 90 Se
DV 90 SE INSTRUCTIONS FOR USE Instructions for using DV 90 SE For indoor air to stay healthy and beneficial also for the structures of the dwelling, ventilation has to be in operation continually. It is not advisable to stop ventilation even for longer holidays, because it makes indoor air stuffy. -
Page 5: Ventilation Control With Carbon Dioxide Sensor
DV 90 SE INSTRUCTIONS FOR USE 2.4. Ventilation control with carbon dioxide sensor (option) • In carbon dioxide control, DV 90 SE adjusts fan speed so as to keep carbon dioxide content in the ventilation zone below the setpoint. When two or more sensors are used, fan speed is adjusted according to the highest measuring result. -
Page 6: Supply Air Constant Temperature Control
DV 90 SE INSTRUCTIONS FOR USE 2.9. Supply air constant temperature control • DV 90 SE has a relative post-heating control; when the temperature selected exceeds supply air temperature by more than 2.5˙C, the radiator is on 100%, and when the temperature difference gets smaller, the period of active operation is automatically reduced in two-minute sequences. -
Page 7: Fireplace Switch / Boosting
DV 90 SE INSTRUCTIONS FOR USE 2.14. Fireplace switch function / boosting Fireplace switch function • The fireplace switch stops the extract air fan for 15 minutes and produces overpressure in the ventilation zone. This makes it easier to light the fireplace, for instance. •... -
Page 8: Operating Menu
DV 90 SE INSTRUCTIONS FOR USING THE CONTROL PANEL Control panel Start button Scrolling up 3.1. Keyboard With this button, you switch the unit on and off. With this button, you can scroll the displays upward. When the indicator is lit, the unit is on. Scrolling down Carbon dioxide adjustment With this button, you can scroll the displays downward. - Page 9 DV 90 SE INSTRUCTIONS FOR USING THE CONTROL PANEL 3.3. Settings menu You can reach the settings menu from the operating menu as indicated in section 3.2.2. The displays of the settings menu (sections 3.3.1.–3.3.26.) can be scrolled with the scrolling buttons (see section 3.1., items 5 and 6 in the figure). 3.3.1.
- Page 10 DV 90 SE INSTRUCTIONS FOR USING THE CONTROL PANEL 3.3.14. Adjusting the direct current fan of the supply air side The desired adjustment value for the DC fan is selected with the + and – buttons. The rotation speed DC fan - supply of the supply air fan can be lowered by decreasing the percentage value.
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Page 11: Week Clock Control
DV 90 SE INSTRUCTIONS FOR USING THE CONTROL PANEL 3.4. Week clock control 3.4.1. Week programme programming The week programme can be used to set the desired fan speed (basic fan speed) and supply air Hr Sp temperature for each hour of the day on seven days a week. The week programme overrides Exit manual adjustments. -
Page 12: Maintenance Instructions
DV 90 SE MAINTENANCE INSTRUCTIONS 4. MAINTENANCE INSTRUCTIONS 4.1. Before starting maintenance operations When you open the door of the DV 90 SE unit, the safety switch (S) switches the unit off; in spite of that, please disconnect the plug of the unit. Always disconnect the plug before starting maintenance operations for the DV 90 SE unit. -
Page 13: Fans
DV 90 SE MAINTENANCE INSTRUCTIONS 4.3. Fans Check the cleanliness of the fans in connection with the maintenance of the filter and heat recovery cell. Clean the fans if necessary. You can remove the fans from the unit before cleaning them. The fan blades can be cleaned with compressed air or with a brush. -
Page 14: Troubleshooting
DV 90 SE TROUBLESHOOTING SYMPTOM REASON DO THIS Outdoor air coming to • Air cools down in the attic ducts. • Check the insulation of the attic ducts. the dwelling is cold. • The heat recovery cell is frozen, which is •... - Page 15 DV 90 SE TROUBLESHOOTING SYMPTOM REASON DO THIS "Bus fault" message is • Wiring fault in the carbon dioxide sensor, • Contact a maintenance company. The connections have to in the control panel or in the humidity sen- be checked and corrected if necessary. displayed and the unit sor.