Vallox 132 E Series Instructions For Use And Maintenance Manual

Also see for 132 E Series: Technical specifications

Contents

Vallox 132 E Series Instructions For Use And Maintenance Manual Manual pdf 11 page image

Outdoor air coming tothe dwelling is cold.SYMPTOM REASON DO THIS• Air cools down in the attic ducts.• The heat recovery cell is frozen, which iswhy extract air cannot heat outdoor air.• The post-heating radiator does not work.• The extract air filter or cell is clogged.• The initial adjustment of ventilation has notbeen done.1 • Measure the temperature of supply air in the unit and com-pare it with the air coming from the valve.• Check the insulation of the attic ducts.• If the heat recovery cell is frozen, check the setpoints forheat recovery cell freeze protection and preheating (seeSection 2.4.). The setpoint for freezing protection can beraised by 1 or 2 °C, or the sensor can be bent closer to thecell, in which case the supply air fan stops earlier. Thaw thecell before closing the door.• If the post-heating radiator does not operate, check to see ifoverheat protection prevents it from operating: press theblack button at the end of the radiator. If the protector hastripped, you hear a click when pressing the button. Pressingthe button resets the radiator in working order after thetripping of the overheat protector.• Consult an expert to find out why the overheat protectortripped.• Check that the filters and the heat recovery cell are clean.• Check the initial adjustment.Supply air fan keepsstopping.• The stopping of the supply air filter isactive.2 • The fan stops more rarely and the efficiency of the heatrecovery cell gets better when the setpoint is decreased by1 or 2 °C.NOTE! If you decrease the setpoint too much, the cell may freeze.Compare with list item 1.Supply air fan stops andstarts too frequently.• The difference between the stopping andstarting temperatures is too small.• The preheating radiator does not work.3 • Raise the difference between the stopping and starting tem-peratures by 1 or 2 °C. It extends the period between thestopping and starting of the supply air fan.• If the (electric) preheating radiator does not function, checkif overheat protection prevents it from operating: press theblack button at the end of the radiator. Also check whetherthe preheating radiator has been taken into use and adju-sted correctly.• If the radiator does still not work, i.e. the fan does not stopmore rarely, contact a maintenance company.VKL unit has stopped. • Antifreeze of the water-circulating radiatoris active.NOTE! If there is no non-freezing solution in the waterof the radiator, the radiator is at risk of freezing andbreaking down. If the radiator breaks down, there is arisk of water damage.4 • Immediately troubleshoot the situation. Check if thecirculation pump is broken, the boiler out of operation etc.The situation may pass by itself as soon as supply airtemperature exceeds 10 °C, but do not wait till it happens.Filter guard indicator is litand the unit operatesotherwise normally.• The pressure in the filter guard (pressuredifference switch) has risen above theadjustment value or fan speed is 3 or 4.5 • If fan speed is 3 or 4, no maintenance activities are needed.• If fan speed is 1 or 2, check the cleanliness of the filters andthe unit, and clean or replace the filters if needed. Alsocheck the external grille.11TROUBLESHOOTINGVALLOX 132 E/VKL© VALLOX • We reserve the right to make changes without prior notification

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