Table Of Contents - Lochinvar POWER VENTED GAS HEATERS Installation And Operating Manual

TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE
GENERAL SAFETY
INTRODUCTION
Qualifi ed Installer Or Service Agency . . . . . . . . . . . . 6
Preparing For The Installation . . . . . . . . . . . . . . . . . . 6
INSTALLATION REQUIREMENTS FOR THE
COMMONWEALTH OF MASSACHUSETTS
TYPICAL INSTALLATION
Get To Know Your Water Heater - Gas Models
(List Referencing Figures 1-7). . . . . . . . . . . . . . . . . . 9
Replacement Parts And Deliming Products . . . . . . 10
Combo Heating Inlet And Outlet Side Taps . . . . . . . 10
Water Piping - Mixing Valve Usage . . . . . . . . . . . . . .11
Mixing Valves
Water Heater Operation . . . . . . . . . . . . . . . . . . . . . 12
Electrical Requirements & Wiring Diagram . . . . . . . 13
SAFETY LOCKOUTS
High Limit Controls (TCO) . . . . . . . . . . . . . . . . . . . . 14
Thermostat/Water Temperature
Blower High Limit Switch
Blower Air Pressure Switch . . . . . . . . . . . . . . . . . . . 14
Flammable Vapor Sensor . . . . . . . . . . . . . . . . . . . . 14
LOCATING THE NEW WATER HEATER
Facts To Consider About The Location . . . . . . . . . . 15
Storage Of Flammable Liquids . . . . . . . . . . . . . . . . 15
Clearances To Combustibles
Floors With Carpeting
Clearance For Servicing
Insulation Blankets . . . . . . . . . . . . . . . . . . . . . . . . . 17
Air Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Unconfi ned Space. . . . . . . . . . . . . . . . . . . . . . . . . . 17
Unusually Tight Construction . . . . . . . . . . . . . . . . . 17
Confi ned Space. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Direct Vent Appliances . . . . . . . . . . . . . . . . . . . . . . 18
Exhaust Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fresh Air Openings For Confi ned Spaces. . . . . . . . 18
Chemical Vapor Corrosion . . . . . . . . . . . . . . . . . . . 19
INSTALLING THE NEW WATER HEATER
Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Space Heating And Potable Water Systems . . . . . . 20
Combo Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System Requirements
Installation
Closed Water Systems . . . . . . . . . . . . . . . . . . . . . . 22
Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . 22
Temperature-Pressure Relief Valve. . . . . . . . . . . . . 23
T&P Valve Discharge Pipe Requirements:
Temperature-Pressure Relief Valve And Pipe Insulation
High Altitude Installation . . . . . . . . . . . . . . . . . . . . . 24
Gas Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Sediment Traps/Dirt Leg . . . . . . . . . . . . . . . . . . . . . 25
Filling The Water Heater . . . . . . . . . . . . . . . . . . . . . 26
Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Termination Clearances Sidewall Power Vent. . . . . 27
Blower Assembly Installation. . . . . . . . . . . . . . . . . . 28
Installation Of Vent System . . . . . . . . . . . . . . . . . . . 28
Planning The Vent System . . . . . . . . . . . . . . . . . . . 28
High Ambient Temperature Installations . . . . . . . . . 28
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TABLE OF CONTENTS

2
3
4
6
7
9
LIGHTING INSTRUCTIONS
OPERATING THE TEMPERATURE
CONTROL SYSTEM
FOR YOUR INFORMATION
14
15
PERIODIC MAINTENANCE
20
LEAKAGE CHECKPOINTS
REFERENCE PARTS LISTING
TROUBLESHOOTING GUIDELINES
LIMITED WARRANTY
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Polypropylene Vent Systems . . . . . . . . . . . . . . . . . 29
Condensate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Exhaust Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Important Notes And Warnings
Venting Terminations And Sizing
Vent Screen Installation
Calculating Equivalent Feet
Venting Instructions
Vent Pipe Connection To Blower
Different Coupling Installations According To Vent Sizes
Blower Exhaust Direction . . . . . . . . . . . . . . . . . . . . 35
Vent Pipe Preparation . . . . . . . . . . . . . . . . . . . . . . . 35
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . 38
Gas Control Valve/Thermostat . . . . . . . . . . . . . . . . 41
Start Up Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 42
Condensate
Thermal Expansion
Closed Water Systems
Smoke/Odor
Strange Sounds
Operational Conditions . . . . . . . . . . . . . . . . . . . . . . 42
Smelly Water
"Air" In Hot-water Faucets . . . . . . . . . . . . . . . . . . . . 43
High Water Temperature Shut-off System. . . . . . . . 43
General Upkeep . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Venting System Inspection . . . . . . . . . . . . . . . . . . . 44
Blower Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 44
Cleaning The Blower. . . . . . . . . . . . . . . . . . . . . . . . 44
Burner Operation And Inspection . . . . . . . . . . . . . . 45
Combustion Chamber And Burner Cleaning . . . . . . 46
Housekeeping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Anode Rod Inspection. . . . . . . . . . . . . . . . . . . . . . . 46
Anode Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Removing Anode Rod:
Installing Anode Rod:
Temperature-Pressure Relief Valve Test . . . . . . . . . 47
Draining And Flushing . . . . . . . . . . . . . . . . . . . . . . . 48
To Drain The Water Heater Storage Tank:
To Flush The Water Heater Storage Tank:
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Resetting The Heater Control . . . . . . . . . . . . . . . . . 54
TCO Resettable Lockout. . . . . . . . . . . . . . . . . . . . . 54
Lockouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Soft Lockout
Hard Lockout
Ignition State And Timing . . . . . . . . . . . . . . . . . . . . 55
System Status And Error Codes . . . . . . . . . . . . . . . 55
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40
42
44
49
50
52
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