Table Of Contents
Safe Installation, Use and Service | 3 |
General Safety Information | 4 |
Precautions | 4 |
Introduction | 6 |
Qualifications | 6 |
iCOMM™ & BACnet Compatible | 6 |
Preparing For The Installation | 6 |
Features And Components | 7 |
Basic Operation | 7 |
Top Views | 8 |
Side Views | 10 |
Installation Considerations | 11 |
Rough In Dimensions | 11 |
Recovery Capacities | 12 |
Locating The Water Heater | 12 |
Clearance To Combustible Materials | 13 |
Service Clearance | 13 |
Insulation Blankets | 13 |
Installation Requirements | 14 |
Gas Pressure Requirements | 14 |
Supply Gas Line | 14 |
Supply Gas Regulator | 14 |
Power Supply | 14 |
Mixing Valves | 15 |
Dishwashing Machines | 15 |
Closed Water Systems | 15 |
Thermal Expansion | 15 |
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Condensate Drain | 17 |
Air Requirements | 18 |
Commonwealth of Massachusetts | 21 |
Venting Installation | 22 |
General Venting Information | 22 |
Category IV Appliance | 22 |
Power Vent Configuration | 22 |
Direct Vent Configuration | 22 |
General Venting Instructions | 22 |
Venting Requirements | 24 |
Maximum Equivalent Lengths | 24 |
Minimum Equivalent Lengths | 24 |
Maximum Number Of Elbows | 24 |
Venting Installation Sequence | 25 |
Power Vent Installation | 25 |
Direct Vent Installation | 25 |
Vertical Termination Installation | 27 |
Sidewall Termination Installation | 29 |
Concentric Termination Installation | 30 |
Multiple Concentric Termination Clearances | 32 |
Multiple Concentric Termination Arrangements | 33 |
Venting Arrangements | 34 |
Termination Clearances Sidewall Power Vent | 36 |
Termination Clearances Sidewall Direct Vent | 37 |
Water Heater Installation | 38 |
Condensate Drain Installation | 38 |
Supply Gas Line Installation | 39 |
Supply Gas Regulator Installation | 40 |
Electrical Wiring | 41 |
Power Supply Connections | 41 |
Enable/Disable Circuit | 41 |
Water Line Connections | 42 |
T&P Valve Discharge Pipe | 42 |
Temperature Regulation | 43 |
High Temperature Limit Control (ECO) | 43 |
Thermostat Control | 43 |
Control System Operation | 44 |
Control System Navigation | 44 |
The Desktop Screen | 44 |
Status Icons | 45 |
User Settings & Control System Menus | 47 |
Temperatures Menu | 47 |
Heater Status Menu | 48 |
Display Settings | 49 |
Heater Information | 49 |
Current Fault | 50 |
Fault History | 50 |
Fault Occurrence | 50 |
Restore Factory Defaults | 50 |
Service Contact Information | 51 |
Start Up | 52 |
Initial Start Up | 52 |
Supply Gas Pressure Adjustment | 54 |
Manifold Gas Pressure Adjustment | 54 |
Checking The Firing Rate | 55 |
High Altitude Installations | 55 |
Lighting The Water Heater | 56 |
Lighting & Operation Labels | 56 |
Troubleshooting | 58 |
Installation Checklist | 58 |
Sequence Of Operation | 58 |
Sequence Of Operation Flow Chart | 59 |
Operational Problems | 60 |
Rough Starting, Rough Operation | 60 |
Momentary Ignition | 60 |
Not Enough Or No Hot Water | 60 |
Fault And Alert Conditions | 61 |
Fault Conditions | 61 |
Alert Conditions | 61 |
Resetting Control System Lock Outs | 61 |
Diagnostic Checks | 61 |
Fault And Alert Messages | 62 |
Maintenance | 64 |
Maintenance Schedule | 64 |
Diagrams | 67 |
CCB - Central Control Board Layout | 67 |
SUF 120 & 150 Wiring Diagram | 68 |
SUF 199 & 250 Wiring Diagram | 69 |
Circulation Pump Wiring Diagrams | 70 |
Water Piping Diagrams | 71 |
Limited Warranty | 78 |
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