3CAUTIONNOTICEWARNINGCAUTIONTable of ContentsPart 1 - Product and Safety Information 4A. Before Operating the Boiler 4B. Primary Water 5C. Freeze Protection 5D. Combustion Air Contamination Prevention 5Part 2 - Operating Instructions 6A. Boiler Operation 7B. Ignition Procedure 7C. Central Heating (CH) Temperature Adjustment 7D. Domestic Hot Water (DHW) Temperature Adjustment 7E. During Operation 8F. User Menu 8G. INFO Menu 10H. Date and Time 11I. Automatic CH Temperature Control (AUTO) 11J. Outdoor Heating Curve Slope 11K. Outdoor Heating Curve Parallel Shift 11L. Room temperature Day/night 12M. Time programs - heating schedule 12N. Automatic summer / winter changeover 12O. During operation 13P. General Cautionary Statements 13Part 3 - Maintenance Schedule 14A. Owner Maintenance 14B. Qualified Service Technician 14Part 4 - Maintenance Procedures 15A. Daily Maintenance - To Be Performed by Owner 15B. Monthly Maintenance - To Be Performed by Owner 15C. 6 Month Maintenance - To Be Performed by Owner 16D. Annual Maintenance - To Only Be Performed by a QualifiedService Technician 16Part 5 - Troubleshooting for the User 17Maintenance Notes 18The following defined terms are used throughout thismanual to bring attention to the presence of hazards ofvarious risk levels or to important product information.DANGER indicates an imminently hazardous situationwhich, if not avoided, will result in serious personal injuryor death.WARNING indicates a potentially hazardous situationwhich, if not avoided, could result in personal injury or death.CAUTION indicates a potentially hazardous situation which,if not avoided, may result in moderate or minor personalinjury.CAUTION used without the safety alert symbol indicates apotentially hazardous situation which, if not avoided, mayresult in property damage.NOTICE is used to address practices not related to personalinjury.SPECIAL ATTENTION BOXESDANGER