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TABLE OF CONTENTS
INTRODUCTION .......................................................................................2
Quali
fi
cations ........................................................................................2
Service Warning ...................................................................................2
Service Reminder .................................................................................2
Tools Recommended ............................................................................2
INSTALLATION CONSIDERATIONS ........................................................3
Instruction Manual ................................................................................3
Closed Water Systems .........................................................................3
Thermal Expansion ...............................................................................3
Air Requirements ..................................................................................3
Contaminated Air ..................................................................................3
PLEASE READ BEFORE PROCEEDING.................................................4
Handling Ceramic Fiber Materials ........................................................4
USER INTERFACE MODULE (UIM)/ TOUCH SCREEN DISPLAY ..........5
CONTROL INPUTS ...................................................................................6
CONTROL OUTPUTS ...............................................................................7
GENERAL OPERATION............................................................................8
How The Water Heater Operates .........................................................8
Sequence Of Operation ........................................................................8
Access Modes ......................................................................................8
Saving Parameters ...............................................................................8
SEQUENCE OF OPERATION ..................................................................9
TOUCH SCREEN DISPLAY MENU ACCESS .........................................11
TOUCH SCREEN DISPLAY PARAMETER ACCESS .............................13
PARAMETER TABLE ..............................................................................14
VIEWABALE AND CHANGEABLE CONTROL PARAMETERS ..............16
Temperature .......................................................................................16
Service ................................................................................................16
Circulation Pumps ..............................................................................17
Building Management System (BMS) .................................................17
Lead/Lag ............................................................................................18
Economy Mode/Clock .........................................................................19
Short Cycling ......................................................................................20
MAINTENANCE ......................................................................................21
Maintenance Schedules .....................................................................21
Maintenance .......................................................................................22
TROUBLESHOOTING ............................................................................27
Troubleshooting Chart - Not Visible On Display .................................28
Troubleshooting Chart - Noisy System ...............................................29
Troubleshooting Chart - Fault Messages Displayed ...........................30
Checking Temperature Sensors .........................................................38
Combustion Analysis Procedure .........................................................39
Gas Valve Adjustment Procedure .......................................................40
