Table of Contents
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Installation Instructions and
Use & Care Guide
DO NOT RETURN THIS UNIT TO THE STORE
Read this manual and the labels on the water heater before you install,
operate, or service it. If you have difficulty following the directions, or
aren't sure you can safely and properly do any of this work yourself:
• Call your Local plumbing supplies store to have this water heater installed.
Professional Installation is available for this product and the work is guaranteed.
• Schedule an appointment with a qualified person to install your water heater.
• Call our Technical Assistance Hotline which is listed on the water heater's
warranty sheet. We can help you with installation, operations, troubleshooting,
or maintenance. Before you call, write down the model and serial number from
the water heater's data plate.
Incorrect installation, operation, or service can damage the water heater, your
house and other property, and present risks including fire, scalding, electric shock,
and explosion, causing serious injury or death.
Table of Contents
Important Safety Information .................................................. 3
Getting Started ........................................................................ 7
Installation ............................................................................. 15
Operation .............................................................................. 24
Troubleshooting .................................................................... 26
Maintenance ......................................................................... 30
Repair Parts ........................................................................... 33
Notes .................................................................................. 35
Keep this manual in the pocket on heater for future reference whenever maintenance, adjustment or service is required.
June, 2023
Residential Gas
Water Heater
Residential Direct Vented Gas Water Heater
Not for use in Manufactured (Mobile) Homes
Retain your original receipt as proof of purchase.
WARNING: If the information in
these instructions is not followed
exactly, a fire or explosion may
result causing property damage,
personal injury or death.
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch;
do not use any phone in your build-
ing.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas suppli-
er, call the fire department.
Installation and service must be per-
formed by a qualified installer, service
agency or the gas supplier.
LOW LEAD
CONTENT
100369451_2000626161_REV.A
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Related Manuals for A.O. Smith G6-PVT4050NV
Summary of Contents for A.O. Smith G6-PVT4050NV
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Page 1: Table Of Contents
Installation Instructions and Use & Care Guide Residential Gas Water Heater Residential Direct Vented Gas Water Heater Not for use in Manufactured (Mobile) Homes WARNING: If the information in DO NOT RETURN THIS UNIT TO THE STORE these instructions is not followed exactly, a fire or explosion may result causing property damage, Read this manual and the labels on the water heater before you install,... -
Page 2: Vent Termination Hood
COMPLETED INSTALLATION (TYPICAL) Vent Termination Hood Wall Plate Vent Pipe Inlet Water Shut-off Valve Cold Inlet Hot Outlet Inlet Water Shut-off Valve Combo Heating System Supply Outlet (Optional) Temperature and Pressure Relief Valve Discharge Pipe Manual Gas Shut-off Combo Heating System Supply Return Inlet (Optional) Drip Leg Drain Pan... -
Page 3: Important Safety Information
IMPORTANT SAFETY INFORMATION Read and follow all safety messages and instructions in this Important information to keep manual. Fill out this section and keep this manual This is the safety alert symbol. It is used to alert you to in the pocket of the water heater for potential physical injury hazards. - Page 4 IMPORTANT SAFETY INFORMATION Gas Pressure To reduce the risk of property Table 1 damage, serious injury or death, read Temperature Time to Produce a WARNING! The gas supply and follow the precautions below, Serious Burn pressure must not exceed the all labels on the water heater, and maximum supply pressure as stated the safety messages and instructions...
- Page 5 IMPORTANT SAFETY INFORMATION Fire Risk water heater’s temperature setting. water heater and have it inspected by a qualified person if you find that • Should overheating occur or the This water heater the wiring, gas control valve/ther- burner fail to shut off, turn off the is equipped with a mostat or surrounding insulation manual gas supply valve to the...
- Page 6 IMPORTANT SAFETY INFORMATION Installation Accessories or discharge pipe is blocked. Do not • Do not install this water heater in cap or plug the T&P Relief Valve or a mobile home or manufactured discharge pipe. housing. Fire and Explosion Risk if Hot Water •...
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Page 7: Getting Started
GETTING STARTED Combustion and Review all of the instructions Before you start, be sure you before you begin work. have the following tools and Ventilation Air Supply Improper installation can supplies: damage the water heater, your home Before installing the water heater, you •... - Page 8 GETTING STARTED Venting To reduce the risk of carbon monoxide of the combustion air intake. Figure poisoning, install a fuel gas and 7 through Figure 13 show how to carbon monoxide detector. Install and assemble and connect the venting WARNING! Carbon Monoxide maintain the detector in accordance system.
- Page 9 GETTING STARTED DV Termination Hood Standard Vent Arrangement Alternatively, a wire mesh or louvered fencing guard can be built around the When the heater is in operation, the * If the horizontal length of the termination as shown in Figure 6. vent termination hood will be hot (see venting is less than 30”...
- Page 10 GETTING STARTED Vent Assembly For short horizontal vent runs (see Figure 17) place the restricter plate The vent piping and the vent over the flue tube reducer before termination hood are to be connected connecting the inner corrugated tube as shown in Figure 7. Maintain to the flue tube reducer.
- Page 11 GETTING STARTED gear clamp. Pull the free end of the Use Table 2 with Figures 16-18. Flue Tube Reducer corrugated pipe past the gear clamp Inner and secure with one sheet metal Table: 2 Corrugated screw (see Figure 13). Pipe DIM.
- Page 12 GETTING STARTED Replacing a Water protection from wind and other High Vent Installation weather related hazards. Failure to do Heater Using the so may result in pilot outages at the Existing Vent System water heater. Vent Termination Hood Read the “Installing a New Vent System”...
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Page 13: Ground Joint Union
GETTING STARTED Confined Space Gas Piping 3. Install a ground joint union be- tween the gas control valve and Installations the manual gas shut-off valve. Gas piping must be installed according This is to allow easy removal of to local and state codes or, in the This water heater connects to the vent the gas control valve. - Page 14 GETTING STARTED Space Heating • A properly installed flow control valve is required to prevent ther- mosiphoning. Thermosiphoning is TYPICAL MIXING VALVE INSTALLATION COMBINATION SPACE HEATING / POTABLE WATER HEATING SYSTEM the result of a continuous flow of water through the air handler circuit EXPANSION TANK COLD WATER INLET during the off cycle.
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Page 15: Installation
INSTALLATION ✓ Step: 1 Water Pressure Increase Caused ✓ Verify that Your by Thermal Home is Equipped Expansion and Up-To-Date 80 100 120 Verify that you have a properly for Proper Operation sized Thermal Expansion Tank. We recommend installing an expansion Installing a new water heater is the AVOID FREEZING tank if your home does not have one. - Page 16 INSTALLATION BACKGROUND: A Thermostatic Mixing 1974 requires the use of backflow • Install a metal drain pan (available at preventers and check valves to restrict your local plumbing supplier) under Valve, installed at each point-of-use, water from your home reentering the water heater to catch conden- mixes hot water from the water the public water system.
- Page 17 INSTALLATION Step: 2 • Do not obtain ventilating air for the water, the tank will eventually leak. furnace/air handler from the same To minimize property damage from space as the water heater. Ensure leaks, inspect and maintain your Verify that the Location that any return air ducts near the water heater in accordance with this is Appropriate...
- Page 18 INSTALLATION Turn the manual gas valve for the water heater’s supply line OFF. Open a hot water faucet and let the hot water run until it is cool. Figure 35 - Disconnect the vent pipe from the Figure 33 - Draining the old water heater. draft hood.
- Page 19 INSTALLATION Step: 4 Step: 5 NOTICE: Most codes require setting the water heater in a metal drain pan piped to an adequate drain. The drain Installing the New Connect the pan helps avoid property damage Water Heater Temperature and which may occur from condensation Pressure (T&P) Relief or leaks in the piping connections or Completely read all...
- Page 20 INSTALLATION Step: 6 • The discharge pipe must not be • Do not place any valve or other re- smaller than the pipe size of the striction between the tank and T&P T&P Relief Valve. The pipe must also Relief Valve. Do not cap, block, plug, Install Shut-Off and be able to withstand 250°F (121°C) or insert any valve between the T&P...
- Page 21 INSTALLATION Install insulation (or heat IF YOU HAVE COPPER PIPES: connections contain non-metallic tape) on the water pipes parts which could be damaged. The especially if the indoor If your home has copper water proper way to connect the water installation area is subject to freezing pipes, you can solder the water pipe heater to copper water pipes is as...
- Page 22 INSTALLATION Step: 8 Step: 9 Verify Connections and Install Vent Pipe Completely Fill Tank Install the new vent pipe on top of the water heater. Do To remove air from the tank and allow not reuse the vent pipe from the tank to fill completely with water, the old water heater, but rather use follow these steps:...
- Page 23 INSTALLATION BEFORE LIGHTING THE WATER Vent Termination Hood Gas Supply and Piping HEATER... ✓ Securely fastened to exterior wall. ✓ Gas type is the same as that listed on the water heater’s data plate. Make sure all checklist items have ✓...
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Page 24: Operation
OPERATION Lighting Instructions Shut Down Instructions If the Status Light doesn’t start flashing after 90 Turn the gas control/temperature WARNING! Explosion Hazard — seconds,release the gas knob counterclockwise to the “OFF” Replace viewport if glass is missing or control knob and wait 10 minutes. setting. - Page 25 OPERATION Check all vent system connections for that cause a condition known as Condensation is normal and should go damage or deterioration which could “smelly water” and can reduce the away once the tank reaches its normal cause improper venting or leakage of levels of bacteria that cause water- operating procedure.
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Page 26: Troubleshooting
TROUBLESHOOTING No Hot Water Undersized Water Heater. If your If you see a spark, make sure the gas supply valve is turned on, and try water heater runs out of hot water lighting the pilot using the lighting quickly, it may be too small for your Use the following step-by-step plan instructions on page 24. - Page 27 TROUBLESHOOTING Drips from T&P Relief Plumbing Leak. Even a small leak the debris. Refer to the T&P Relief in the hot water side of the home’s Valve Maintenance section of this Valve Discharge Pipe plumbing system can make it appear manual.
- Page 28 TROUBLESHOOTING Status Light and Diagnostic Code Troubleshooting Chart LED STATUS OR ERROR CODE INDICATES CORRECTIVE ACTION 0 FLASHES (LED NOT LIT) Pilot light is not lit or thermopile has not yet Turn Gas Control Valve/Thermostat knob to “OFF”. reached normal operating temperature. Wait 10 minutes, then attempt to relight Pilot by following the lighting instructions on the water heater’s label.
- Page 29 TROUBLESHOOTING LED STATUS OR ERROR CODE INDICATES CORRECTIVE ACTION 8 FLASHES This condition only appears if the gas control/ Make sure that the gas control valve/thermostat temperature knob has been turned off and the knob is set to “OFF”. Wait one minute. Remove thermopile continued to produce electric power.
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Page 30: Maintenance
MAINTENANCE Routine Maintenance Remove and inspect the anode rod and replace if depleted. The anode rod Routine maintenance will help your requires a 1-1/16” socket. water heater last longer and work better. If you cannot perform these routine maintenance tasks yourself, contact a qualified person. - Page 31 MAINTENANCE NOTICE: Do not attempt to light an orange colored flame. Contact a Minerals in the water can form the water heater until the tank is qualified technician if the flame is deposits that cause the valve to stick completely full of water. For complete not satisfactory.
- Page 32 MAINTENANCE Removing and Replacing the turn the gas control valve/thermostat (clockwise.) DO NOT OVER TIGHTEN, Gas Control Valve S TAT U S L I G H T C O D E F L A M E S S TAT U S damage may result.
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Page 33: Repair Parts
REPAIR PARTS When ordering repair parts always give the following information: 1. Model, serial, and product number 2. Item number 3. Parts Description Repair Parts List Item Parts Description Vent Termination Hood Wall Plate Vent Pipe Cold Water Inlet Nipple/Diptube Side Connect - Hot Outlet T&P Valve Gas Control Valve/Thermostat... - Page 34 REPAIR PARTS 34 • Residential Gas Water Heater Use and Care Guide...
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Page 35: Notes
NOTES Residential Gas Water Heater Use and Care Guide • 35... - Page 36 Copyright © 2023 All Rights Reserved...