Vallox 70 COMPACT R Instructions For Use Manual

Also see for 70 COMPACT R: Technical specifications Instructions for use and maintenance

Contents

Vallox 70 COMPACT R Instructions For Use Manual Manual pdf 12 page image

Vallox Oy • Myllykyläntie 9-11 • FI-32200 Loimaa Finland • Telephone +358 10 7732 200 • www.vallox.com.© VALLOX • We reserve the right to make changes without prior notification.What the units include can vary depending on the sales area.1.09.349E/11.10.2012/PDFVALLOX 70 COMPACTTROUBLESHOOTINGOutdoor air coming to the dwelling is cold.REASON• Air cools down in the attic ducts.• The heat recovery cell is frozen, which is why extract air cannot heat outdoor air.• The post-heating radiator does not work.• The extract air filter or the cell is clogged.• The initial adjustment of ventilation has not been done.DO THIS• Measure the temperature of supply air in the unit and compare it with the air coming from the valve (see page 7).• Check the insulation of the attic ducts.• Check the operation of the defrost thermostat and preheating resistor (see the section Preheating radiator on page4). You may adjust the defrost thermostat by turning its spindle clockwise to +10°C or counter-clockwise to 0°C.At 0°C freezing is likely; at +10 °C no freezing occurs but extract air can be too warm when going out. Accordingto the factory setting, the defrost thermostat works at +5 °C.• Check the operation of the radiator by comparing it with the curve (page 7). The curve shows the extent to whichextract air heats supply air without post-heating.• Check that the filters and the heat recovery cell are clean.• Check the initial adjustment.

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