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© Baxi Heating UK Ltd 2008 Contents Natural Gas Potterton Promax Combi 24 HE Plus A G.C.No 47 393 21 Potterton Promax Combi 28 HE Plus A G.C.No 47 393 22 Potterton Promax Combi 33 HE Plus A G.C.No 47 393 23 .. This product has an energy rating (A) on a scale of A to G. For more information see This is a certification mark. Section Page 1.0 Quick Reference Guide 3 2.0 Troubleshooting 4 3.0 Repressurising System 6 4.0 Clearances 7 5.0 Care of the Boiler 8 6.0 Legislation 9 7.0 Notes 10 “Potterton” supports Baxi Heating UK Ltd is a BS-EN ISO 9001 Accredited Company The code of practice for the installation, commissioning & servicing of central heating systems. © Baxi Heating UK Ltd 2008 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or stored in any retrieval system of any nature (including in any database), in each case whether electronic, mechanical, recording or otherwise, without the prior written permission of the copyright owner, except for permitted fair dealing under Copyrights, Designs and Patents Act 1988. Applications for the copyright owner’s permission to reproduce or make other use of any part of this publication should be made, giving details of the proposed use, to the following address: The Company Secretary, Baxi Heating UK Ltd, The Wyvern Business Park, Stanier Way, Derby, DE21 6BF. Full acknowledgement of author and source must be given. WARNING: Any person who does any unauthorised act in relation to a copyright work may be liable to criminal prosecution and civil claims for damages. 8.0 Emergency 11 9.0 Warranty & Service 12 Boiler Controls - see opposite page for Operating Quick Reference Guide Where fitted, user label for optional timer to be applied here. © Baxi Heating UK Ltd 2008 1.0 Quick Reference Guide Resetbar01234 ON/OFF/Reset Display Central Heating Domestic Hot Water System Pressure Gauge Position of Selector Switch Temperature Control Temperature Control Optional Timer Reset OFF Position The boiler will not operate. Reset Reset Domestic Hot Water Hot Water will operate. Reset Display Central Heating & Hot Water Reset Both Heating & Hot Water will operate. Hold for approx 5 seconds and release. Central Heating Indicator - The indicator will illuminate when the boiler is in the central heating mode. Domestic Hot Water Indicator - The indicator will illuminate when hot water is being supplied to a tap or shower. Burner On Indicator - The indicator will illuminate when the burner has fired and is heating your central heating or domestic hot water. Boiler Output Temperature - In either the central heating or domestic hot water position the display will illuminate showing the current boiler temperature in degrees centigrade. bar01234 Central Heating Temperature Control Turn the knob clockwise to increase or anticlockwise to decrease the temperature. Range 25 - 80° C. Domestic Hot Water Temperature Control Turn the knob clockwise to increase or anticlockwise to decrease the temperature. Range 35 - 60° C. Central Heating System Pressure - The normal operating water pressure is shown when the needle is in the GREEN section of the gauge, between 1 and 2.5 bar. If the pressure exceeds 3 bar (needle in the RED section) the safety pressure valve will operate and a fault is indicated. Contact your Installer. © Baxi Heating UK Ltd 2008 Boiler not working START START 2.0 Troubleshooting Make sure the gas supply is Is the ( ) light on NO YES Is the ON/OFF/Reset YES turned ON and check if other and the ( ) or ( ) on ? Select Switch in the gas appliances are operating ( ) position and (e.g. fire, cooker). Central Heating the display lit ? Domestic HotIndicator Water Indicator NO If no gas, consult your supplier. Reset Burner On IndicatorYES Display NO Boiler operating satisfactorily. Check electricity to the boiler is switched on. Is the Central Heating System YES Does the display show an error NO Pressure needle in the GREEN code e.g. E133, E110 ? section, between 1 and 2.5 bar ? NO bar01234 YES If the reading falls below 1 bar repressurise the system as Turn the ON/OFF/Reset described in section 3.1. Selector Switch to Reset. Reset If boiler does not Reset Error Code E119 showing low pressure. © Baxi Heating UK Ltd 2008 2.0 Troubleshooting Is the Timer ON and calling for Is the Room Thermostat (if YES YES heat ? fitted) set high enough ? 121234567891011CH ON CH OFF Typical examples of external timer NO Ensure timer is set for Central Heating ON (see any instructions supplied with timer). 151052025 NO Turn Room Thermostat to maximum setting (typical example shown). 151052025 CONTACT YOUR INSTALLER OR SERVICE ENGINEER. If you don’t know what you need to do to get the boiler to light, or need help with the system and controls, contact your installer as soon as possible. © Baxi Heating UK Ltd 2008 3.0 Repressurising System Fig. 1 Fig. 2 bar01234Normal Pressure bar01234Requires Repressurising bar01234 Fig. 3 Fault ...