Installation Manual

2
Venting Installation Sequence ............................................ 23
Power Vent Installation....................................................... 23
Direct Vent Installation ....................................................... 23
Vertical Termination Installation .......................................... 24
Sidewall Termination Installation ........................................ 26
Polypropylene Installations ................................................ 27
AL29-4C Vent Installations ................................................. 27
Concentric Termination Installation .................................... 28
6 Inch Concentric Termination Installation ......................... 29
LOW PROFILE VENT INSTALLATION ................................... 32
Venting Arrangements ........................................................ 33
Termination Clearances Sidewall Power Vent.................... 35
Termination Clearances Sidewall Direct Vent .................... 36
WATER HEATER INSTALLATION ........................................... 37
Condensate Drain Installation ............................................ 37
Supply Gas Line Installation............................................... 38
Electrical Wiring ................................................................. 39
Enable/Disable Circuit ........................................................ 39
T&P Valve Discharge Pipe ................................................. 40
TEMPERATURE REGULATION ............................................. 41
High Temperature Limit Control (ECO) .............................. 41
Thermostat Control ............................................................ 41
CONTROL SYSTEM OPERATION ......................................... 42
Overview ............................................................................ 42
Control System Navigation................................................. 42
User Settings & Control System Menus ............................. 45
START UP ............................................................................... 50
Prior to Start up .................................................................. 50
Initial Start Up..................................................................... 50
Checking the Firing Rate.................................................... 51
High Altitude Installations ................................................... 52
Lighting & Operation Label................................................. 53
TROUBLESHOOTING ............................................................ 54
Installation Checklist .......................................................... 54
Sequence of Operation ...................................................... 54
Sequence of Operation Flow Chart .................................... 55
Operational Problems ........................................................ 56
Fault and Alert Conditions .................................................. 57
MAINTENANCE ...................................................................... 60
General .............................................................................. 60
Maintenance Schedule....................................................... 60
Draining and Flushing ........................................................ 60
Filling the Water Heater ..................................................... 61
Sediment Removal ............................................................. 61
Lime Scale Removal .......................................................... 61
Powered Anode Rods ........................................................ 62
Drain Valve and Access Panels ......................................... 62
Temperature-Pressure Relief Valve Test ............................ 62
Vent System ....................................................................... 62
DIAGRAMS ............................................................................. 63
CCB - Central Control Board Layout .................................. 63
Wiring Diagram .................................................................. 64
Circulation Pump Wiring Diagrams .................................... 65
Water Piping Diagrams ...................................................... 66
NOTES .................................................................................... 73
LIMITED WARRANTY ............................................................. 75
SAFE INSTALLATION, USE AND SERVICE............................. 3
APPROVALS ............................................................................. 3
GENERAL SAFETY INFORMATION ......................................... 4
Precautions .......................................................................... 4
Grounding Instructions ......................................................... 4
Hydrogen Gas Flammable ................................................... 4
INTRODUCTION ....................................................................... 6
Abbreviations Used .............................................................. 6
Qualications........................................................................ 6
iCOMM™ & BACnet Compatible ......................................... 6
Preparing for the Installation ................................................ 6
FEATURES AND COMPONENTS ............................................ 7
Basic Operation.................................................................... 7
Modulation............................................................................ 7
Blower/Burner Assembly Detail ............................................ 7
Top View ............................................................................... 8
Side Views ........................................................................... 9
INSTALLATION CONSIDERATIONS ...................................... 10
Rough In Dimensions ......................................................... 10
Gas Line Connection Size.................................................. 10
Storage Capacities ............................................................. 10
Recovery Capacities .......................................................... 10
Locating the Water Heater ................................................. 11
Extended Vent Terminations .............................................. 11
Optional Direct Vent Terminations ...................................... 12
Hard Water ......................................................................... 12
Circulation Pumps .............................................................. 12
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
Temperature-Pressure Relief Valve ................................... 15
Condensate Drain .............................................................. 16
Combustible Material Storage ............................................ 16
Contaminated Air................................................................ 16
Air Requirements ............................................................... 17
Unconned Space .............................................................. 17
Conned Space.................................................................. 17
Fresh Air Openings For Conned Spaces.......................... 18
Outdoor Air Through Two Openings ................................... 18
Outdoor Air Through One Opening .................................... 18
Outdoor Air Through Two Horizontal Ducts ........................ 18
Outdoor Air Through Two Vertical Ducts ............................ 19
Air From Other Indoor Spaces ........................................... 19
INSTALLATION REQUIREMENTS - COMMONWEALTH OF
MASSACHUSETTS ................................................................. 20
VENTING INSTALLATION ...................................................... 21
General Venting Information .............................................. 21
General Venting Instructions .............................................. 21
Venting Requirements ........................................................ 22
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