11
15.1.15 - Check air piping.................................................................................................................................................. 109
15.1.16 - Check condensate drain system ........................................................................................................................ 109
15.1.17 - Check heater piping (gas and water) ................................................................................................................. 109
15.1.18 - Shut heater down ............................................................................................................................................... 110
15.1.19 - Test low water cutoff (if installed) ....................................................................................................................... 110
15.1.20 - Reset button (low water cutoff) ........................................................................................................................... 110
15.2 - Removing the casing ...................................................................................................................................... 110
15.3 - Cleaning the burner and primary heat exchanger, fl ue gas side .....................................................................111
15.4 - Correct positioning of the ignition and fl ame detection electrodes ................................................................ 113
15.5 - Clean the air fi lter ........................................................................................................................................... 113
15.6 - Condensate trap and neutralizing box maintenance and cleaning ................................................................ 114
15.7 - Connection of the display to other burners .................................................................................................... 115
15.8 - How to move a control board ......................................................................................................................... 116
15.9 - Draining the water from the heater ................................................................................................................. 117
15.10 - Water and fl ue temperature sensor .............................................................................................................. 117
15.11 - Outdoor temperature sensor ....................................................................................................................... 117
15.12 - 199 model wiring diagram ............................................................................................................................ 118
15.13 - 399 to 1000 models wiring diagram ............................................................................................................. 120
16 - TECHNICAL DATA .................................................................................................................124
17 - SPARE PARTS .......................................................................................................................126
18 - READ OUT FLOW CHART ....................................................................................................148
19 - FACTORY MENU ....................................................................................................................149
20 - SEQUENCE OF OPERATION for BOILER ............................................................................152
21 - SEQUENCE OF OPERATION for WATER HEATER .............................................................153
TABLE OF CONTENTS