Table Of Contents
Safe Installation, Use and Service | 3 |
General Safety Information | 4 |
Precautions | 4 |
Introduction | 6 |
Qualifications | 6 |
Preparing For The Installation | 6 |
Features And Components | 7 |
Basic Operation | 7 |
Top View | 8 |
Side Views | 9 |
Installation Considerations | 10 |
Rough In Dimensions | 10 |
Recovery Capacities | 10 |
Locating The Water Heater | 11 |
Clearance To Combustible Materials | 11 |
Service Clearance | 11 |
Insulation Blankets | 12 |
Installation Requirements | 13 |
Gas Pressure Requirements | 13 |
Supply Gas Line | 13 |
Supply Gas Regulator | 13 |
Power Supply | 13 |
Mixing Valves | 14 |
Dishwashing Machines | 14 |
Closed Water Systems | 14 |
Thermal Expansion | 14 |
15 | |
Condensate Drain | 16 |
Air Requirements | 17 |
Commonwealth of Massachusetts | 20 |
Venting Installation | 21 |
General Venting Information | 21 |
Category IV Appliance | 21 |
Power Vent Configuration | 21 |
Direct Vent Configuration | 21 |
General Venting Instructions | 21 |
Venting Requirements | 22 |
Maximum Equivalent Lengths | 22 |
Minimum Equivalent Lengths | 22 |
Maximum Number Of Elbows | 22 |
Venting Installation Sequence | 23 |
Power Vent Installation | 23 |
Direct Vent Installation | 23 |
Vertical Termination Installation | 24 |
Sidewall Termination Installation | 26 |
Concentric Termination Installation | 27 |
Multiple Concentric Termination Clearances | 30 |
Multiple Concentric Termination Arrangements | 31 |
Venting Arrangements | 32 |
Termination Clearances Sidewall Power Vent | 34 |
Termination Clearances Sidewall Direct Vent | 35 |
Water Heater Installation | 36 |
Condensate Drain Installation | 36 |
Supply Gas Line Installation | 37 |
Supply Gas Regulator Installation | 38 |
Electrical Wiring | 39 |
Power Supply Connections | 39 |
Enable/Disable Circuit | 39 |
Water Line Connections | 40 |
T&P Valve Discharge Pipe | 40 |
Temperature Regulation | 41 |
High Temperature Limit Control (ECO) | 41 |
Thermostat Control | 41 |
Control System Operation | 42 |
Control System Navigation | 42 |
The Desktop Screen | 42 |
Status Icons | 43 |
User Settings & Control System Menus | 45 |
Temperatures Menu | 45 |
Heater Status Menu | 46 |
Display Settings | 47 |
Heater Information | 47 |
Current Fault | 48 |
Fault History | 48 |
Fault Occurrence | 48 |
Restore Factory Defaults | 48 |
Service Contact Information | 49 |
Start Up | 50 |
Initial Start Up | 50 |
Supply Gas Pressure Adjustment | 51 |
Manifold Gas Pressure Adjustment | 51 |
Checking The Firing Rate | 52 |
High Altitude Installations | 52 |
Lighting The Water Heater | 53 |
Lighting & Operation Label | 53 |
Troubleshooting | 54 |
Installation Checklist | 54 |
Sequence Of Operation | 54 |
Sequence Of Operation Flow Chart | 55 |
Operational Problems | 56 |
Rough Starting, Rough Operation | 56 |
Momentary Ignition | 56 |
Not Enough Or No Hot Water | 56 |
Fault And Alert Conditions | 57 |
Fault Conditions | 57 |
Alert Conditions | 57 |
Resetting Control System Lock Outs | 57 |
Diagnostic Checks | 57 |
Fault And Alert Messages | 58 |
Maintenance | 60 |
Maintenance Schedule | 60 |
Diagrams | 63 |
CCB - Central Control Board Layout | 63 |
(A)HCG3 130T 300 Wiring Diagram | 64 |
(A)HCG3 130T 400 Wiring Diagram | 65 |
Circulation Pump Wiring Diagrams | 66 |
Water Piping Diagrams | 67 |
Limited Warranty | 74 |
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