User Guide

2
TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE..................3
APPROVALS ..................................................................3
GENERAL SAFETY INFORMATION ..............................4
INTRODUCTION ............................................................5
Abbreviations Used ................................................... 5
Qualied Installer or Service Agency ......................... 5
Preparing for The Installation .................................... 5
INSTALLATION CONSIDERATIONS .............................6
Rough-In Dimensions ................................................ 6
Thermometers (Not Supplied) ................................... 7
Facts to Consider About the Location ........................ 7
High Altitude .............................................................. 9
Adjusting Air Shutter for Higher Altitudes ................... 9
Clearances ............................................................... 10
Insulation Blankets ................................................... 10
Hard Water ............................................................... 11
Circulation Pumps .................................................... 11
INSTALLATION REQUIREMENTS ..............................12
Gas Supply Systems ................................................ 12
Gas Pressure Requirements ................................... 12
Supply Gas Regulator .............................................. 12
Mixing Valves ............................................................ 12
Water Piping ............................................................. 13
Temperature-Pressure Relief Valve .......................... 14
Filling the Water Heater ............................................ 15
Air Requirements ...................................................... 16
Unconned Space .................................................... 16
Conned Space ........................................................ 16
Fresh Air Openings For Conned Spaces ................ 17
Outdoor Air Through Two Openings ......................... 17
Outdoor Air Through One Opening ........................... 17
Outdoor Air Through Two Horizontal Ducts .............. 18
Outdoor Air Through Two Vertical Ducts ................... 18
Air From Other Indoor Spaces .................................. 18
Venting ...................................................................... 19
Gas Piping ................................................................ 20
Sediment Traps ........................................................ 22
TEMPERATURE REGULATION ..................................24
FOR YOUR INFORMATION .........................................25
Start-UP CONDITIONS ............................................ 25
Operational Conditions ............................................. 26
PERIODIC MAINTENANCE .........................................27
Venting System Inspection ....................................... 27
Burner Inspection ..................................................... 27
Burner Cleaning ........................................................ 27
Air Shutter Adjustment .............................................. 28
Housekeeping ........................................................... 28
Anode Rod Inspection .............................................. 28
Temperature-Pressure Relief Valve Test .................. 28
Periodic Removal of Lime Deposits From Tank Type
Commercial Water Heaters ...................................... 30
Deliming Solvents ..................................................... 30
Tank Cleanout Procedure ......................................... 30
Deliming Using Flo-Jug Method ............................... 31
Draining and Flushing ............................................... 32
Service ...................................................................... 32
LEAKAGE TEST POINTS ............................................33
Removing and Replacing the Gas Control Valve/
Thermostat .............................................................. 34
WATER PIPING DIAGRAMS ........................................39
COMMERCIAL WATER HEATER LIMITED
WARRANTY .................................................................46