Install Instructions

2
Polypropylene Installations .............................................................. 28
AL29-4C
®
Vent Installations ........................................................... 29
Concentric Termination Installation .................................................. 30
4 Inch Concentric Termination Installation ....................................... 31
Low Prole Vent installation ............................................................. 34
Venting Arrangements ..................................................................... 35
Termination Clearances Sidewall Power Vent ................................. 37
Termination Clearances Sidewall Direct Vent .................................. 38
WATER HEATER INSTALLATION ........................................................ 39
Condensate Drain Installation ......................................................... 39
Supply Gas Line Installation ............................................................ 40
Gas Line Leak Testing ..................................................................... 41
Purging ............................................................................................ 41
Electrical Wiring ............................................................................... 41
Enable / Disable Circuit (For Building Management Systems) ........ 42
Water Line Connections .................................................................. 43
T&P Valve Discharge Pipe ............................................................... 43
TEMPERATURE REGULATION .......................................................... 44
High Temperature Limit Control (ECO) ............................................ 44
Thermostat Control .......................................................................... 44
CONTROL SYSTEM OPERATION ...................................................... 45
Overview .......................................................................................... 45
Control System Navigation .............................................................. 45
User Settings & Control System Menus .......................................... 48
START UP ............................................................................................ 53
Prior to Start up ............................................................................... 53
Initial Start Up .................................................................................. 53
Lighting & Operation Labels ............................................................ 54
Checking The Firing Rate ................................................................ 56
High Altitude Installations ................................................................ 56
TROUBLESHOOTING ......................................................................... 57
Installation Checklist ........................................................................ 57
Sequence Of Operation ................................................................... 57
Sequence Of Operation Flow Chart ................................................ 58
Operational Problems ...................................................................... 59
Fault And Alert Conditions ............................................................... 60
MAINTENANCE ................................................................................... 63
General ............................................................................................ 63
Maintenance Schedule .................................................................... 63
Draining And Flushing ..................................................................... 63
Filling The Water Heater .................................................................. 64
Sediment Removal .......................................................................... 64
Lime Scale Removal ........................................................................ 64
Powered Anode Rods ...................................................................... 65
Drain Valve and Access Panels ....................................................... 65
Vent System .................................................................................... 65
DIAGRAMS .......................................................................................... 66
CCB - Central Control Board Layout ............................................... 66
Wiring Diagram ................................................................................ 67
Circulation Pump Wiring Diagrams .................................................. 68
Water Piping Diagrams .................................................................... 69
NOTES ................................................................................................. 76
NOTES ................................................................................................. 77
NOTES ................................................................................................. 78
SERVICE INQUIRIES: ......................................................................... 79
COMMERCIAL ..................................................................................... 79
WATER HEATER ................................................................................. 79
LIMITED WARRANTY .......................................................................... 79
TABLE OF CONTENTS
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
Locating The Water Heater ...............................................................11
Extended Vent Terminations ............................................................ 12
Optional Concentric & Low Prole Terminations.............................. 12
Hard Water ...................................................................................... 12
Circulation Pumps ........................................................................... 12
Insulation Blankets .......................................................................... 12
INSTALLATION REQUIREMENTS ...................................................... 13
Gas Supply Systems ....................................................................... 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
Intake Air Connection ...................................................................... 22
Venting Requirements ..................................................................... 22
Venting Installation Sequence ......................................................... 23
Power Vent Installation .................................................................... 23
Direct Vent Installation ..................................................................... 24
Vertical Termination Installation ....................................................... 25
Sidewall Termination Installation...................................................... 27