Vaillant VRC 470 Instruction Manual

Also see for VRC 470: Operating instructions Instruction manual Installation insrtuctions Installation instructions

Contents

6 Service and troubleshooting22 Instructions for use VRC 470 0020116689_016 Service and troubleshooting6.1 Cleaning the controller1. Clean the casing of the controller with a damp cloth.2. Never use scouring or cleaning agents which coulddamage the operator control elements or the display.6.2 Detecting and rectifying faultsFault Cause TroubleshootingDisplay is dark Appliancefault– Switch off the mainsswitch on all heatgenerators for ap-prox. 1 minute andthen switch them onagain– If the fault is stillpresent, inform thecompetent personNo changes inthe display via therotary knobNo changes in thedisplay via the se-lection buttons7 Decommissioning7.1 Replacing the controllerIf the controller of the heating system needs to be replaced,the heating system must be shut down.▶ This work should be carried out by a competent person.7.2 Recycling and disposalThe controller and the associated transport packaging con-sist largely of recyclable materials.UnitIf the product is identified with this symbol, it does notbelong with the household waste at the end of its useful life.▶ Instead, take the product to a collection point for recyc-ling electrical and electronic devices.For more information on where to take used electrical orelectronic devices, contact the town or district authorities,waste disposal company, or the competent person who in-stalled the product.Disposing of the packaging▶ The competent person who installed the product is re-sponsible for disposing of the packaging.8 Guarantee and customer service8.1 GuaranteeWe only grant a Vaillant manufacturers warranty if a suitablyqualified engineer has installed the system in accordancewith Vaillant instructions. The system owner will be granteda warranty in accordance with the Vaillant terms and condi-tions. All requests for work during the guarantee period mustbe made to Vaillant Service Solutions (0870 6060 777).8.2 Customer serviceTo ensure regular servicing, it is strongly recommendedthat arrangements are made for a Maintenance Agreement.Please contact Vaillant Service Solutions (0870 6060 777)for further details.9 Technical data9.1 ControllerDesignation ValueOperating voltage Umax 24 VCurrent consumption < 50 mASupply line cross-section 0.75 … 1.5 mm²Level of protection IP 20Protection class IIIMaximum permissible ambienttemperature 50 ℃Height 115 mmWidth 147 mmDepth 50 mm9.2 Sensor resistancesTemperature (°C) Resistance (ohms)-25 2167-20 2067-15 1976-10 1862-5 17450 16195 149410 138715 124620 112825 102030 92035 83140 740