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INSTALLATION AND OPERATING INSTRUCTIONS Model 250 Model 350 Download the Airfi App to your smart device. You get an easy-to-use weekly clock and many other functions. www.airfi.fi/app MORE THAN PURE AIR...
Table of contents Warnings and cautions General information General information in brief Basic operation of the air handling unit Controls Fans Heat recovery cell Protective functions Hauling Installation Installation of ventilation ducts Condensate removal Airfi water seal Electricity, control cables and controllers Duct radiators Controllers Sento...
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Read the instructions for use, installation and maintenance carefully before proceeding. You can also download the instructions from our website: www.airfi.fi. The document is intended for anyone who ser- vices, installs or uses Airfi Oy’s air handling units. We reserve the right to make changes.
Warnings and cautions Installation Condensation water and condensation NB: For moving and lifting the unit, see page 10 In freezing temperatures, the surface temperature of the unit can temporarily drop so low that moisture can con- dense on the surface of the unit in humid conditions. Take The installation of the air handling unit should only this into account with regard to fixtures near the unit.
Filter sets Supply ISO Coarse, 90%+ ePm1, 55% Filter Set #3 - Model 250/350 Extract ISO ePM10 60% Remember to replace the filters regularly, at least every six months. Use original Airfi Oy filters. You can easily order filters from our web shop: www.airfi.fi/verkkokauppa...
With mechanical ventilation, fresh outdoor air is brought into the building through the unit. The air handling unit is equipped with efficient ISO Coarse, 90% + ISO ePM 1 55% filters, which filter the air coming from the outside to the inside. Remember to replace the filters regularly, at least every six months.
Fans Airfi units use EC DC fans. Replacing a fan does not require a person with an electrical work licence. The control and supply connections for the fans are fitted with plugs that do not present a risk of elec- tric shock.
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The defrosting function is used optimally, saving energy com- pared to older solutions. Model 250 and Model 350 have hoarfrost protection provided by block defrosting. The self-learning capabilities make it possible to take the indi- vidual characteristics of the air handling unit into account, for example, how dirty the filters and heat recovery cell are.
Hauling Airfi Model 250 and Model 350 are always delivered on a pallet. The unit is attached to the pallet, so be sure to remove the fixing screws before lifting the unit. The unit’s paint surface is inspected and documented before the protective plastic is applied to the unit.
Installation The air handling unit should be installed in a room with a temperature of at least +10°C and where condensation drainage is possible. The air handling unit should not be installed on the wall opposite the bedroom or living room wall. When installing, care must be taken to ensure that the electrical and control cables are placed in an easily accessible location.
7916072 Electricity, control cables and controllers Model 250 Electric / Model 250 Water / Model 350 Water are equipped with a grounded plug (16 A), note the current rating on the socket. The Model 350 Electric supply conductor is installed by an electrical contractor.
Controllers Individual instructions for controllers can be found in a separate document. Here is an overview of the controllers. The air flow rates specified in the building regulations are recommended to be set at speed 3. » Air handling units and control hoods must always be fitted with an earthed plug. »...
Mille-Wifi Mille – a Wifi connected control tablet (if the internet switch in the apart- ment does not have Wi-Fi functionality, choose the Airfi Wire controller), the Mille Wifi controller works wirelessly, so you will need a USB socket to connect the controller to the power supply (installation height 1.6 m). The Mille controller is an easy-to-use modern controller with a touch screen.
Bus control Airfi air handling units have Modbus RTU and TCP/IP bus interfaces as standard. Connection to the KNX bus requires a separate adapter (accessory: Airfi KNX adapter, product code: 40 000 098). The Modbus master map is available as a separate document on our website. The unit is equipped for control-command centre connections.
Commissioning Air handling system settings during commissioning and maintenance can be made using the Mille- Wire service panel, the Mille Wifi control panel, the Airfi App or locally using the Seven-segment display (standard inside the air handling unit). The service code for the Mille panel is 12345. At the time of commissioning, at least the air flow rates must always be adjusted.
Filter sets and codes Do not use the unit without filters. Filter Set #3 Model 250-350 40000003 Heat recovery cell The heat recovery cell must be cleaned every three years or more frequently if necessary. The cell comes off by pulling. Wash the cell with running water and a mild detergent (e.g. dishwashing liquid).
Technical specifications Model Model Dimensions (width x height x depth) 998 x 1475 x 650 998 x 1475 x 650 Weight 175 kg 175 kg Duct outlets 4x250 4x250 Kitchen bypass Condensate fitting From the front edge 128 mm From the front edge 128 mm Condensation water tray Tilted condensation water tray Tilted condensation water tray...
Temperature set point in “away” mode C4 Limit value for the risk of freezing of water range 5–20 °C, factory setting 8 °C NB: Only water units 250/350 radiator C5 Post-ventilation time, electrical resistor 0–10 min, factory setting 3 min...
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Operation of the internal humidity transmitter Fan function when humidity increases: 0 = Switch function / 1 = Transmitter function (default) / 2 = Disabled (250/350 default 2) Setpoint for internal humidity transmitter 50..90%, factory setting 70% Boost rate of the internal humidity transmitter if 30..100, factory setting 60%...
SFP value according to the given air flow and duct pressure drop. The programme also shows the unit’s annual efficiency. This document can also be used as an appendix to an application for a building licence. Model 250 Model 350 Other functions...
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Raisio 01.09.2021 DECLARATION OF CONFORMITY We declare that Airfi Oy’s Model air handling units and exhaust hoods comply with the following EC Directives: Machinery Directive (2006/42/EC) Low Voltage Directive (2014/35/EC) EMC Directive (2014/30/EC) WEEE Directive (2012/19/EC) RoHS Directive (2011/65/EC) and that the following harmonised standards have been applied: EN 13141-7 (2010) Izabella Lundberg Managing Director...
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Airfi Oy AB +358 (0)2 430 3300 Piilipuunkatu 1 1 www.airfi.fi 21200 Raisio, Finland info@airfi.fi...
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