Table of Contents
Advertisement
Quick Links
500 Tennessee Waltz Parkway
Ashland City, TN 37015
Low Lead Content
all technIcal and warrantY questIons: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS
PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER.
PRINTED 0810
resIdentIal Gas water heaters
Keep thIs Manual In the pocKet on heater for future reference
whenever MaIntenance adjustMent or servIce Is requIred.
power vented Gas Models w/hot surface IGnItIon
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
Model Gphe 50 serIes 100
•
AN ODORANT IS ADDED TO THE GAS USED
1
Instruction Manual
for Your safety
BY THIS WATER HEATER.
•
197423-004
Advertisement
Table of Contents
Related Manuals for A.O. Smith GPHE 50 Series
Summary of Contents for A.O. Smith GPHE 50 Series
- Page 1 Instruction Manual resIdentIal Gas water heaters power vented Gas Models w/hot surface IGnItIon NOT FOR USE IN MANUFACTURED (MOBILE) HOMES Model Gphe 50 serIes 100 500 Tennessee Waltz Parkway Ashland City, TN 37015 Low Lead Content • • for Your safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER.
-
Page 2: Safe Installation, Use And Service
safe InstallatIon, use and servIce The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. -
Page 3: General Safety Information
General safetY InforMatIon... - Page 4 General safetY InforMatIon at least 18" (45.7 cm) above the floor. This will reduce, but not eliminate, the risk...
-
Page 5: Table Of Contents
taBle of contents SAFE INSTALLATION, USE AND SERVICE..........2 Filling the Water Heater ..............17-18 APPROVALS ....................2 Vent Pipe Assembly ................18 GENERAL SAFETY INFORMATION ............3-4 Venting ....................18 TABLE OF CONTENTS ................5 Vent Pipe Termination ................ 19 INTRODUCTION ..................5 Planning the Vent System .............. -
Page 6: Installation Requirements For The Commonwealth Of Massachusetts
InstallatIon requIreMents for the coMMonwealth of Massachusetts coMMonwealth of Massachusetts InspectIon The state or local gas inspector of the side wall horizontally For all side wall terminated, horizontally vented power vent, direct vented gas fueled equipment shall not approve the installation vent, and power direct vent gas fueled water heaters installed in unless, upon inspection, the inspector observes carbon monoxide every dwelling, building or structure used in whole or in part for... -
Page 7: Typical Installation
tYpIcal InstallatIon Get to Know Your water heater - Gas Models a vent pipe Bushing q rating plate B anode nipple r Insulation c hot water outlet condensate tee vent terminal D Outlet (120 VAC) adapter drain valve f Gas supply Igniter and Main Burner ll plug G Main Manual Gas shuttoff valve... - Page 8 tYpIcal InstallatIon condensate hose and draIn pan fIGure 1a.
-
Page 9: Mixing Valves
tYpIcal InstallatIon MIXInG valve / therMal eXpansIon tanK usaGe and space heatInG fIGure 2. MIXInG valves heater (see Figure 3) or at hot water taps to further reduce system water temperature. Mixing valves are available at plumbing supply stores. Consult a DANGER Water temperature over 125°F (52°C) Qualified Installer or Service Agency. Follow mixing valve manufacturer’s can cause severe burns instantly instructions for installation of the valves. -
Page 10: Locating The New Water Heater
locatInG the new water heater facts to consIder aBout the locatIon Carefully choose an indoor location for the new water heater, because the placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. -
Page 11: Insulation Blankets
in an alcove or closet, the entire floor must be covered by the panel. If this water heater will be used in beauty shops, barber shops, cleaning establishments, or self-service laundries with dry cleaning Failure to heed this warning may result in a fire hazard. equipment, it is imperative that the water heater or water heaters be installed so that combustion and ventilation air be taken from outside these areas. -
Page 12: Unconfined Space
Such a condition often will result in a yellow, luminous burner free area and metal louvers and grilles will have 75% free area. Non flame, causing sooting of the combustion chamber, burners and motorized louvers and grilles should be fixed in the open position. flue tubes and creates a risk of asphyxiation. fresh aIr openInGs for confIned spaces Do not install the water heater in a confined space unless an adequate supply of air for combustion and ventilation is brought in... -
Page 13: Outdoor Air Through Two Horizontal Ducts
Figure 7. The water heater should have clearances of at least 1 inch The confined space should be provided with two permanent vertical (25 mm) from the sides and back and 6 inches (150 mm) from the front ducts, one commencing within 12 inches (300 mm) of the top and of the appliance. The opening should directly communicate with the one commencing within 12 inches (300 mm) of the bottom of the outdoors or should communicate through a vertical or horizontal duct enclosure. -
Page 14: Installing The New Water Heater
InstallInG the new water heater This water heater should not be connected to any heating systems or cheMIcal vapor corrosIon component(s) used with a non-potable water heating appliance. CORROSION OF THE FLUEWAYS AND VENT SYSTEM MAY All piping components connected to this unit for space heating OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN CHEMICAL applications should be suitable for use with potable water. -
Page 15: Thermal Expansion
therMal eXpansIon duct tape, electrical tape, or equivalent. IMPORTANT: The insulation and tape must not block the discharge opening or hinder access to the As water is heated, it expands (thermal expansion). In a closed system manual relief lever (Figure 11). Ensure a discharge pipe is installed into the volume of water will grow when it is heated. As the volume of water the T&P valve discharge opening per the instructions in this manual. -
Page 16: High Altitude Installation
hIGh altItude InstallatIon discharge opening must not be blocked or reduced in size under any circumstances. Excessive length, over 30 feet (9.14 m), or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve. No valve or other obstruction is to be placed between the Temperature-Pressure Relief Valve and the tank. -
Page 17: Sediment Traps
sedIMent traps A gas line of sufficient size must be run to the water heater. Consult the current edition of National Fuel Gas Code (ANSI Z223.1/NFPA 54) and your gas supplier concerning pipe size. There must be: • A readily accessible manual shuttoff valve in the gas supply line serving the water heater, and • A drip leg (sediment trap) ahead of gas control valve to help prevent dirt and foreign materials from entering the gas control valve. • A flexible gas connector or a ground joint union between the shuttoff valve and control valve to permit servicing of the unit. -
Page 18: Vent Pipe Assembly
Never use this water heater unless it is completely full of water. To prevent see Figure 16. Disassemble the parts and cement back together damage to the tank, the tank must be filled with water. Water must flow from using the alignment marks. After the cement dries, attach the the hot water faucet before turning “ON” gas to the water heater. assembly to the blower and the water heater exhaust using the supplied rubber boots and hose clamps. -
Page 19: Vent Pipe Termination
terMInatIon clearances sIdewall power vent POWER VENT (using room air for combustion) EXTERIOR CLEARANCES FOR SIDEWALL VENT TERMINATION F IX E D C L O S E D O P E R A B L F IX E D C L O S E D O P E R A B L VENT TERMINAL AIR SUPPLY INLET... -
Page 20: Planning The Vent System
plannInG the vent sYsteM of cracks or fractures, particularly at joints between elbows and other fittings and straight runs of vent pipe. Check system for signs of sagging or other stresses in joints as a result of misalignment of any components Plan the route of the vent system from the discharge of the blower in system. -
Page 21: Blower Assembly Installation
The condensate trap may be primed by filling the CONDENSATE 6. Make sure the ON/OFF switch is in the OFF position and that U-ASSEMBLY with tap water while the water heater is not operating. the outer harness is connected from the blower control box to The system is fully primed when the water level reaches the adaptor the connector on the bottom side of the gas valve. - Page 22 may be easier to mark both the inside and outside wall. Align holes by bead of caulking (not supplied) around the gap between the pipe and drilling a hole through center of the template from the inside through to cover plate. Apply enough to fill some of the gap between the pipe and wall. Place some of the caulking on the back of the plate to hold it the outside.
-
Page 23: Installation Of Vent System, Sidewall
InstallatIon of vent sYsteM, sIdewall additional vent pipe when calculating maximum equivalent feet of venting. With the route of the venting system and selection of materials completed, as discussed in the section of this manual titled PLANNING THE VENT InstallatIon of vertIcal vent sYsteM SYSTEM, the through the wall vent terminal in place and the first section of piping, up to first elbow, installed at the blower it is time to complete the A proper flashing or “BOOT” should be used to seal the pipe... -
Page 24: Vent Attenuation Assembly Installation Instructions
vent attenuatIon asseMBlY 4. Make sure the VAA and vent pipe is supported securely to a permanent fixture (stud or wall). Use standard support InstallatIon InstructIons straps (not supplied with kit) that may be found at a local hardware store. Failure to properly support the VAA and the The Vent Attenuation Assembly (VAA) is designed to provide a surrounding vent pipe could create a hazardous situation. - Page 25 barb, use a wire tie or hose clamp (not supplied with kit) and secure. 6. Take the other end of the flexible tubing and slide it through the hose clamp on the jacket top cover and install it into one of the four barb fittings in vent pipe assembly #2.
-
Page 26: Vent Pipe Preparation
vent pIpe preparatIon prIMer It is recommended that Tetrahydrofuran (THF) be used to prepare the 1. InItIal preparatIon surfaces of pipe and fittings for solvent welding. Do not use water, rags, gasoline or any other substitutes for cleaning PVC or CPVC Make sure the solvent cement you are planning to use is surfaces. A chemical cleaner such as MEK may be used. designed for the specific application you are attempting. - Page 27 B. deburring Use a knife, plastic pipe deburring tool, or file to remove burrs from the end of small diameter pipe. Be sure to remove all burrs from around the inside as well as the outside of the pipe. A slight chamfer (bevel) of about 10°-15° should be added to the end to permit easier insertion of the pipe into the end of the fitting. Failure to chamfer the edge of the pipe may remove cement from the fitting socket, causing the joint to leak. step e f. joint assembly Working quickly, insert the pipe into the fitting socket bottom and step B give the pipe or fitting a 1/4 turn to evenly distribute the cement. Do not continue to rotate the pipe after it has hit the bottom of the C.
-
Page 29: Temperature Regulation
teMperature reGulatIon To avoid any unintentional changes in water temperature settings, the It is recommended that lower water temperatures be used to avoid control has a tamper resistant feature for changing the temperature the risk of scalding. It is further recommended, in all cases, that the setting. -
Page 30: For Your Information
for Your InforMatIon start up condItIons do not remove the anode leaving the tank unprotected. By doing so, all warranty on the water heater tank is voided. sMoKe/odor It is not uncommon to experience a small amount of smoke and odor “aIr”... -
Page 31: Burner Operation And Inspection
Burner operatIon and InspectIon must be maintained. See “Locating the New Water Heater” section. Combustible materials such as clothing, cleaning materials, or flammable liquids, etc. must not be placed against or adjacent to the Flood damage to a water heater may not be readily visible or immediately water heater which can cause a fire. detectable. However, over a period of time a flooded water heater will create dangerous conditions which can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. Contact a qualified installer anode rod InspectIon or service agency to replace a flooded water heater. Do not attempt to repair the unit! It must be replaced! At least once a year a visual inspection should be made of the main burner... -
Page 32: Temperature-Pressure Relief Valve Test
teMperature-pressure relIef valve test draInInG and flushInG It is recommended that the water heater storage tank be drained and DANGER flushed every 6 months to reduce sediment buildup. The water heater • should be drained if being shut down during freezing temperatures. Burn hazard. See Typical Installation section in this manual for location of the water •... -
Page 33: Service
servIce If you are not thoroughly familiar with gas codes, your water heater, and safety practices, contact your gas supplier or qualified installer If a condition persists or you are uncertain about the operation of to check the water heater. the water heater contact a service agency. Read this manual first. Then before checking the water heater make Use this guide to check a “Leaking” water heater. Many suspected sure the gas supply has been turned “OFF”, and never turn the gas “Leakers” are not leaking tanks. Often the source of the water can “ON” before the tank is completely full of water. -
Page 34: Repair Parts List
repaIr parts lIst Key no. part description outer door anode control valve assembly Plastic Top Blower assembly switch and harness assembly t&p valve drain valve wiring harness anode outlet vent pipe assembly #1 vent pipe assembly #2 vent pipe assembly #3 Inlet Tube pipe nipple Burner tube assembly... -
Page 35: Troubleshooting Guidelines
trouBleshootInG GuIdelInes trouBle shootInG Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. INTELLI-VENT TROUBLESHOOTING CHART - USER CONTROL led status proBleM solutIon 1 Ensure the wall outlet (power supply) is properly The gas control valve/thermostat grounded. has sensed inadequate or no earth ground. 2 Ensure all ground connections/wires on the water heater are securely connected. 1 Ensure the wall outlet/power supply is properly wired. - Page 36 led status proBleM solutIon 1 Turn the power off for 10-20 seconds then on again to Self diagnostic check has detected clear these error codes. a problem with the gas valve driver circuit, internal microprocessor, or 2 If any of these error codes persist or cannot be cleared other internal circuits.
- Page 37 trouBleshootInG GuIdelInes trouBleshootInG GuIdelInes These guidelines should be utilized by a qualified service agent.
-
Page 38: Notes
trouBleshootInG GuIdelInes notes... -
Page 39: Limited Warranty
lIMIted resIdentIal Gas warrantY b. Shipping and delivery charges for forwarding the new water heater THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY. or replacement part from the nearest distributor and returning the If the glass lined tank in this water heater shall prove upon examination by claimed defective heater or part to such distributor except in the state of (the warrantor) to have leaked during the warranty period in normal residential use, due to natural corrosion from potable water therein, the warrantor will... - Page 40 500 Tennessee Waltz Parkway, Ashland City, TN 37015 Technical Support: 800-527-1953 • Parts: 800-433-2545 • Fax: 800-644-9306 www.hotwater.com Copyright © 2010 A. O. Smith Corporation. All rights reserved.