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TABLE OF CONTENTS
13.1.3 - Filling the heating system ....................................................................................................................................... 90
13.2 - General warnings concerning gas supply ........................................................................................................ 90
13.3 - Confi rming the heater’s gas type ..................................................................................................................... 91
13.4 - Gas type conversion ........................................................................................................................................ 91
13.5 - Start-up ............................................................................................................................................................ 91
13.5.1 - Start-up of the IB boiler .......................................................................................................................................... 91
13.5.1 - Start-up of the IW water heater .............................................................................................................................. 91
13.6 - Ignition control testing ...................................................................................................................................... 91
13.7 - Gas supply pressure checking ......................................................................................................................... 92
13.8 - Checking and adjusting CO2 levels ................................................................................................................. 93
13.8.1 - Checking CO2 level on units model 199 ................................................................................................................ 93
13.8.2 - Checking CO2 level on units model 399 up to 1000 .............................................................................................. 93
13.9 - Check the capacity input .................................................................................................................................. 94
13.10 - Minimum water fl ow ....................................................................................................................................... 94
14 - USE ...........................................................................................................................................95
14.1 - Check water pressure ...................................................................................................................................... 96
14.1.1 - Check water pressure on IB boiler ......................................................................................................................... 96
14.1.2 - Check water pressure on IW water heater ............................................................................................................. 96
14.2 - Overview .......................................................................................................................................................... 96
14.3 - Displays ............................................................................................................................................................ 96
14.4 - Start-up procedure ........................................................................................................................................... 96
14.5 - IW supply water temperature adjustment ......................................................................................................... 96
14.6 - IB boiler - Indirect water heater temperature adjustment ................................................................................. 97
14.7 - IB boiler - Heating temperature adjustment ..................................................................................................... 97
14.8 - IB boiler - Outdoor reset adjustment ................................................................................................................ 97
14.8.1 - Outdoor reset applications ..................................................................................................................................... 97
14.8.2 - Outdoor reset: setting parameters.......................................................................................................................... 97
14.9 - Delays, alarms and protective actions ............................................................................................................. 99
14.10 - Circulator pump protection ............................................................................................................................. 99
14.11 - Heater’s Freeze protection ............................................................................................................................. 99
14.12 - Display in energy saver mode ....................................................................................................................... 99
14.13 - “Users’ menu” ............................................................................................................................................... 100
14.14 - “Installer’s menu” .......................................................................................................................................... 101
14.15 - Diagnostic .................................................................................................................................................... 102
14.16 - Diagnostic: Lockouts “Loc” ........................................................................................................................... 103
14.17 - Diagnostic: Blocking errors “Err” .................................................................................................................. 105
14.18 - Flue blocked pressure switch ....................................................................................................................... 106
14.19 - Shuts heater down ....................................................................................................................................... 106
14.20 - How to clean the appliance jacket ................................................................................................................ 106
15 - MAINTENANCE ......................................................................................................................107
15.1 - Care and maintenance ................................................................................................................................... 107
15.1.1 - Address reported problems .................................................................................................................................. 108
15.1.2 - Check all piping for gas leaks............................................................................................................................... 108
15.1.3 - Verify fl ue and air lines in good condition and sealed tight; ................................................................................. 108
15.1.4 - Check system water pressure/system piping/expansion tank; ............................................................................. 108
15.1.5 - Check control settings .......................................................................................................................................... 108
15.1.6 - Check ignition and fl ame sense electrodes .......................................................................................................... 108
15.1.7 - Check wiring and connections.............................................................................................................................. 108
15.1.8 - Perform performance verifi cation. ........................................................................................................................ 108
15.1.9 - Flame inspection .................................................................................................................................................. 108
15.1.10 - Check fl ame signal ............................................................................................................................................. 109
15.1.11 - Check relief valve ............................................................................................................................................... 109
15.1.12 - Check heater area .............................................................................................................................................. 109
15.1.13 - Check pressure gauge ....................................................................................................................................... 109
15.1.14 - Check vent piping ............................................................................................................................................... 109
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