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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
building.
•
Immediately call your gas supplier
from a neighbor's phone. Follow
the gas supplier's instructions.
•
If you cannot reach your gas
supplier, call the fire department.
Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
INSTALLER:
•
AFFIX THESE INSTRUCTIONS TO OR ADJACENT
TO THE WATER HEATER.
OWNER:
•
RETAIN THESE INSTRUCTIONS AND WARRANTY
FOR FUTURE REFERENCE. RETAIN THE ORIGINAL
RECEIPT AS PROOF OF PURCHASE.
Direct Vent
Residential Gas
Water Heater
Installation
Instructions and
Use & Care Guide
Ultra Low NOx MODELS
To obtain technical, warranty, or service assistance during or after
the installation of this water heater, visit our website at:
http://www.americanwaterheater.com
or call toll free
1-800-999-9515
When calling for assistance, please have the following
information ready:
1.
Model number
2.
7 digit product number
3.
Serial number
4.
Date of installation
5.
Place of purchase
Table of Contents ......................................................
LOW LEAD
CONTENT
2
325002-000
January 2013
1
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Table of Contents
Troubleshooting
Related Manuals for American Water Heater Ultra Low NOx MODELS
Summary of Contents for American Water Heater Ultra Low NOx MODELS
- Page 1 Use & Care Guide damage, personal injury or death. Do not store or use gasoline or other flammable vapors and liquids in the Ultra Low NOx MODELS vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS •...
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Page 2: Table Of Contents
WATER HEATER SAFETY Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. - Page 3 INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satis- fied:...
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Page 4: Water Heater Safety
INSTALLING YOUR GAS WATER HEATER Important Information About Unpacking the Water Heater This Water Heater WARNING This gas water heater was manufactured to voluntary safety standards to reduce the likelihood of a flammable Excessive Weight Hazard vapor ignition incident. New technology used in meeting Use two or more people to move and install these standards makes this product more sensitive to water heater. -
Page 5: Location Requirements
Site Location WARNING • Select a location near the center of the water piping system. The water heater must be installed indoors and in a vertical position on a level surface. DO NOT install in bathrooms, bedrooms, or any occupied room normally kept closed. -
Page 6: Clearances And Accessibility
an alcove or closet installation, the entire floor must be IMPORTANT: The water heater should be located covered by the panel. in an area where leakage of the tank or connections Figure 2 may be used as a reference guide to locate •... -
Page 7: Gas Supply
Gas Supply Figure 3 Gas Piping Manual Gas Shut-off Valve WARNING Ground Joint Union Check with local utility for minimum height 3” Minimum Explosion Hazard Drip Leg Use a new CSA approved gas supply line. Gas Pressure IMPORTANT: The gas supply pressure must not exceed the Install a shut-off valve. -
Page 8: Combustion Air Supply And Ventilation
Combustion Air Supply and Ventilation Through-the-wall installations require locating the water WARNING heater next to an outside wall. All necessary components are supplied for the standard through-the-wall installation. Carbon Monoxide Hazard Optional vertical and horizontal extension kits are available for installations that exceed the standard horizontal and Water heater must be vented to outdoors. - Page 9 3. Uncompressing the corrugated Flex piping by pulling Secure Flex Vent Pipe to Vent Figure 4A Cap with Small Clamp. Apply the piping to the length as required. Make sure there Installation Flex Vent Pipe silicone sealant to all connections are two springs evenly spaced at the bend in the pipe.
- Page 10 4. Extend the 3” telescoping pipe to its maximum length. Place the smaller section onto the 3” elbow at least 1 Figure 4B and 1/2 inches (See Figure 6). Drill two holes 180° Optional Installation apart and secure with the two #8 sheet metal screws provided.
- Page 11 Through The Roof Venting* Figure 7 Vertical Installation 1. Center the heater directly under the roof opening. This vent system must be installed vertically only. 2. All the pipes needed to assemble the vent are Sealant Slope down 1/4” included in the kit. Do not add to the length of the Screws Screws per foot...
- Page 12 Do not terminate the vent cap in areas containing acid Vent Cap Termination forming chemicals. Inlet air must not contain any corrosive elements. Any water heater failure due to corrosive WARNING elements in the atmosphere is excluded from warranty coverage. Carbon Monoxide Hazard See Figures 7 and 8 for correct Vent Cap Termination Locations.
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Page 13: Water System Piping
7. After piping has been properly connected to the water Water System Piping heater, remove the aerator at the nearest hot water faucet. Open the hot water faucet and allow the tank to Piping Installation completely fill with water. To purge the lines of any ex- Piping, fittings, and valves should be installed according to cess air, keep the hot water faucet open for 3 minutes the installation drawing (Figure 12). - Page 14 Please note the following: Closed System/Thermal Expansion • The system should be installed only with piping that is WARNING suitable for potable (drinkable) water such as copper, CPVC, or polybutylene. This water heater must not be installed using iron piping or PVC water piping. •...
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Page 15: Temperature & Pressure Relief Valve
IMPORTANT: Only a new temperature and pressure relief Temperature and Pressure valve should be used with your water heater. Do not use an old or existing valve as it may be damaged or not adequate Relief Valve for the working pressure of the new water heater. Do not place any valve between the relief valve and the tank. -
Page 16: Special Applications
Some jurisdictions may require a backflow preventer Special Applications in the incoming cold water line. This may cause the temperature and pressure relief valve on the water heater Combination Space Heating/Potable to discharge or weep due to expansion of the heated water. Water System A diaphragm-type expansion tank suitable for potable water will normally eliminate this weeping condition. -
Page 17: Installation Checklist
Important Information About This Water Heater This gas water heater was manufactured to voluntary safety standards to reduce the likelihood of a flammable vapor ignition incident. The new technology used in meeting these standards makes this product more sensitive to installation errors. -
Page 18: Operating Your Water Heater
OPERATING YOUR WATER HEATER Lighting Instructions WARNING Read and understand these directions thoroughly before Explosion Hazard attempting to light or re-light the pilot. Make sure the viewport is not missing or damaged. (See Figure 23) Replace viewport if glass is missing Make sure the tank is completely filled with water before or damaged. - Page 19 Burner Flames Inspect the burner flames through the viewport. Flames should be very small with a blue haze and small amounts of yellow or orange at the edges. After several minutes of operation, the burner screen may glow red. If large flames are observed at any time, shut-off unit and call a qualified person.
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Page 20: Water Temperature Regulation
IMPORTANT: Adjusting the thermostat past the 120°F bar Water Temperature Regulation on the temperature dial will increase the risk of scald injury. Hot water can produce first degree burns within: WARNING Table 3: Time for Time for 1st Water Permanent Burns Degree Burn Temperature °F 2nd &... -
Page 21: Operating The Temperature Control System
Operating the Temperature Control System Status Light Code Figure 19: Status Codes Normal Flashes: List of status codes are shown • 0 Flashes Indicates Control Off/Pilot Out. at top of gas control valve/thermostat. • 1 Flashes Indicates Normal Operation. • Continuous Light indicates the gas control valve/thermostat is shutting down. -
Page 22: Operational Conditions
Operational Conditions Anode Rod/Water Odor Each water heater contains at least one anode rod, Condensation which will slowly deplete (due to electrolysis) prolonging Moisture from the products of combustion condenses on the the life of the water heater by protecting the glass-lined tank surface and the outside jacket of the water heater and tank from corrosion. -
Page 23: Maintenance Of Your Water Heater
MAINTENANCE OF YOUR WATER HEATER Draining and Flushing Temperature and Pressure It is recommended that the tank be drained and flushed Relief Valve every 6 months to remove sediment which may build up during operation. The water heater should be drained if WARNING being shut down during freezing temperatures. -
Page 24: Replacement Parts
Replacement Parts Natural Gas Burner (Ultra Low Nox) Check the burner to see if it is dirty or clogged. The burner Replacement parts may be ordered through your plumber may be cleaned with soft paint brush (Figure 24). Do not or the local distributor. - Page 25 Replacing the Pilot/Thermopile Assembly WARNING 1. Remove the burner door assembly as directed previously. 2. Lift the retainer clip straight up from the back of the manifold component block (using a flat-blade screwdriver), then remove the manifold component block from the burner door assembly (Figure 25). Figure 25 Thermopile Connectors Manifold Component...
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Page 26: Replacing The Burner Door Assembly
Replacing the Burner Door Assembly Combustion Chamber Figure 28A Combustion Chamber WARNING Explosion Hazard Door Gasket Tighten all burner door screws securely. Figure 28B Close-up inside view of the combustion chamber Remove any fiberglass between gasket Combustion Chamber and combustion chamber. Replace viewport if glass is missing or damaged. -
Page 27: Troubleshooting Charts
objects into the inlet or outlet connections. Damage to Removing and Replacing the Gas the gas control valve/thermostat may result. Control Valve/Thermostat Gas Control Valve/Thermostat: IMPORTANT: The gas control valve/thermostat is a standard valve with wire leads that connect to the thermopile. To replace the gas control valve/thermostat, reassemble in reverse order. - Page 28 PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION HIGH OPERATION COSTS Thermostat set too high Set temperature dial to lower setting Sediment or lime in tank Drain/flush-provide water treatment if needed Water heater too small for job Install adequate heater Wrong piping connections Correct piping-dip tube must be in cold inlet Leaking faucets Repair faucets...
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Page 29: Troubleshooting Charts
STATUS LIGHT CODE TROUBLESHOOTING CHART LED STATUS PROBLEM CORRECTIVE ACTION 0 FLASHES (LED NOT LIT) Pilot light is not lit. Not enough Follow the lighting instructions on the front of the power (millivolts) to keep it lit. water heater and record any diagnostic codes. See Diagnostic Status Light Code section. -
Page 30: Repair Parts Illustration
REPAIR PARTS ILLUSTRATION When ordering repair parts always give the following information: 1. Model, serial, and product number 2. Type of gas 3. Item number 4. Parts description Repair Parts List Item Parts Description VENT CAP ASSEMBLY OUTER WALL PLATE INNER WALL PLATE FLEX VENT PIPE (WITH CLAMPS) UPPER AIR BOX... -
Page 31: Listed Parts Kits And Illustrations
Listed Parts Kits and Illustrations Item 14: Manifold door gasket Item 18: Viewport Item 20: Burner Door assembly, which contains the burner, gasket, door, pilot tube, manifold component block with retainer clip, temperature sensor, and pilot assembly. (Natural Gas/Low Nox) Item 20a: Pilot assembly kit, which contains the pilot, electrode, and thermopile (Natural Gas) Item 20b: Flexible manifold tube Item 21: Manifold component block and retainer clip... - Page 32 Copyright © 2013 American Water Heater Company. All Rights Reserved. Printed in the U.S.