Vaillant AROTHERM VWL ../2 A series Operating Instructions Manual

Contents

Safety 10020151761_04 aroTHERM Operating instructions 5▶ Avoid skin or eye contact withthe coolant.▶ In the event of skin or eyecontact with the coolant, seekmedical advice.1.2.9 Danger due tochanges to the productenvironmentThere is a risk of injury ordeath to the user or others, orof damage to the product andother property, in the eventof changes to the productenvironment.Changes must not be made tothe following equipment:– The heat pump– The heat pump environment– The drain line and expansionrelief valve for the heatingwater– The water and electricity sup-ply lines– The heat pump's condensatedrain pipework– The structural conditions thatmay affect the operationalsafety of the product.1.2.10 Risk of injury andmaterial damage due toincorrect maintenanceor repairsAs a result of unauthorised in-terference or tampering with theproduct or parts of the system,the operational safety of theproduct can no longer be en-sured and the guarantee there-fore becomes void.▶ Never interfere or tamper withthe product or other parts ofthe system.▶ Never try to carry out main-tenance work or repairs onthe product yourself.▶ Do not damage or removeany seals on components.Only qualified competentpersons and factory servicepersonnel are authorised tomake modifications to sealedcomponents.▶ Have inspection and main-tenance work carried out by acompetent person.1.2.11 Frost damage due to anunsuitable installationsiteFrost poses a risk of damageto the product and the wholeheating installation.▶ You should therefore ensurethat the heating installationalways remains in operationduring freezing conditions andthat all rooms are sufficientlyheated.Even if rooms, or the wholedwelling, are not in use for cer-tain periods, the heating mustremain in operation.