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GAS WATER HEATERS
RESIDENTIAL
OWNER'S MANUAL
GAS MODELS
Power Vent
Thank you for buying this A. O. Smith energy efficient water
heater. We appreciate your confidence in our products.
GPS-75
You should thoroughly read this manual before installation and/
or operation of this water heater. Please pay particular attention
with Hot Surface Ignition
to the important safety and operating instructions as well as
the WARNINGS and CAUTIONS.
TABLE OF CONTENTS
PAGE
GET TO KNOW YOUR WATER HEATER 2
GENERAL
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GET TO KNOW YOUR WATER HEATER (A) VENT PIPE (O) INLET DIP TUBE REPLACEMENT PARTS AND DELIMING PRODUCTS (B) ANODE (P) TEMPERATURE AND (C) HOT WATER OUTLET PRESSURE RELIEF VALVE Replacement parts and recommended delimer may be ordered (D) OUTLET (120 VAC) (Q) RATING PLATE through authorized servicers or distributors. Refer to the Yellow (E) FLUE BAFFLE (R) INSULATION (F) GAS SUPPLY (S) VENT TERMINAL Pages for your plumber or contact the water heater manufacturer (G) MAIN MANUAL GAS (T) DRAIN VAL
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LP gas must be used with great caution. It is highly explosive and heavier than air. It collects first in the low areas making its GENERAL SAFETY INFORMATION odor difficult to detect at nose level. If LP gas is present or even suspected, do not attempt to find the cause yourself. Go to a neighbor's house, leaving your doors open to ventilate the house, EXTERNAL DAMAGE then call your gas supplier or service agent. Keep area clear until a service call has been made. Do not operate the water h
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clearances from combustible material of: 0" clearance from sides • Do not cover the instruction manual. Keep it on the side of and rear, 5" from the front and 12" from the top. (Standard clearance.) the water heater or nearby for future reference. If clearances stated on the heater differ from standard clearances, install water heater according to clearances stated on heater. • Do obtain new warning and instruction labels for placement on the blanket directly over the existing labels. A minim
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not known, the latest edition of National Fuel Gas Code ANSI WATER (POTABLE) HEATING AND SPACE HEATING Z223.1 recommends using figures of 20-25 percent free area for wood louvers or 60-75 percent for metal grills or louvers. 1. All piping components connected to this unit for space heating applications shall be suitable for use with potable water. UNCONFINED SPACE 2. Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into this system. In buildings of conventional
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WARNING VENT HOOD(S) MAY BE EXTREMELY HOT DURING OPERATION. FIGURE 3 To stop leak, tighten flange screws, joints and pipe REFER TO FIG. 1 FOR CONNECTION DETAILS. BEFORE ATTACHING THE GAS LINE BE SURE THAT ALL GAS PIPE IS connections. Replace part if leak can't be stopped. CLEAN ON THE INSIDE. DISCONNECT THE APPLIANCE AND ITS INDIVIDUAL SHUT TO TRAP ANY DIRT OR FOREIGN MATERIAL IN THE GAS OFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING SUPPLY LINE, A DIRT LEG (SOMETIMES CALLED DRIP LEG) ANY
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BETWEEN THE RELIEF VALVE AND TANK. DO NOT PLUG THE PLANNING THE VENT SYSTEM RELIEF VALVE. Plan the route of the vent system from the discharge of the blower The drain line connected to this valve must not contain a reducing to the planned location of the vent terminal. coupling or other restriction and must terminate near a suitable drain to prevent water damage during valve operation. The 1. Layout the total vent system to use a minimum of vent pipe discharge line shall be installed in a mann
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NOTE: This unit can be vented using only PVC (Class 160, 2. If the Vent Terminal is being installed on the outside of a finished ASTM D-2241; Schedule 40, ASTM D-1785; or Cellular Core wall, it may be easier to mark both the inside and outside wall. Schedule 40 DWV, ASTM F-891), Schedule 40 CPVC/ASTM Align the holes by drilling a hole through the center of the F-441), or ABS/ASTM D-2661) pipe. The fittings, other than template from the inside through to the outside. The template can now be pos
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3. Make sure that plastic tubing is still attached to the pressure E. Splice field wiring into existing wiring using code switch and fan housing. Also make sure that wiring connector authorized method (wire nuts, etc). from motor to control box is securely attached. F. Be certain that neutral and line connections are not reversed when making these connections. 4. Do not plug in power cord until vent system is completely installed. The Power Vent operates on 120 Vac, therefore a G. Ground heate
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INSTALLATION OF VENT SYSTEM, SIDEWALL With the route of the venting system and selection of materials completed, as discussed in section of this manual titled PLANNING THE VENT 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 installation of the venting system for the sidewall installation. FIGURE 9 IMPORTANT The vent system must terminate so that proper clearances are maintained as cit
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2. SELECTION OF MATERIALS NOTE: Power saws should be specifically designed to cut plastic pipe. • Cutting Device - Saw or Pipe Cutter • Deburring Tool, Knife, File, or Beveling Machine (2" and B. Deburring above) Use a knife, plastic pipe deburring tool, or file to remove burrs • Brush - Pure Bristle from the end of small diameter pipe. Be sure to remove all • Rag - Cotton (Not Synthetic) burrs from around the inside as well as the outside of the • Primer and Cleaner pipe. A slight chamfer (beve
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STEP E STEP G NOTE: Cans of cement and primer should be closed at all times when not in use to prevent evaporation of chemicals and hardening of cement. They are also very flammable and should be kept away from heat or flame. F. Joint assembly OPERATION Working quickly, insert the pipe into the fitting socket bottom and 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 WARN
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FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. BEFORE OPERATING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES. A. This appliance does not have a pilot. It is equipped • If you cannot reach your gas supplier, call the fire with an ignition device which automatically lights department. NOT try to light the burner by hand. the burner.
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TEMPERATURE REGULATION 1. "Wake Up" the temperature indicators by holding down both the "COOLER" and "HOTTER" temperature adjustment buttons at the same time for one second (see Figure 10). One or two of the temperature indicators will light up. These indicators will only remain on for 30 seconds if no further buttons are pressed. After 30 seconds the control will go back to "Sleep" mode. 2. Release both of the temperature adjustment buttons. A. To decrease the temperature press and release t
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PERFORMED ONLY BY A QUALIFIED SERVICE TECHNICIAN. READ POWER VENTER MAINTENANCE THE GENERAL SAFETY INFORMATION SECTION FIRST. The water heater must be inspected quarterly. Points of USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS inspection are: COMPONENTS WEAR OUT OVER A PERIOD OF TIME. THE GAS CARRYING COMPONENTS OF THIS APPLIANCE SHOULD BE 1. MOTOR - Motor must rotate freely. This is a sealed motor INSPECTED FOR PROPER OPERATION PERIODICALLY BY A and no oiling is required. QUALIFIED SERV
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If the heater is to be shut off and exposed to freezing If you are having a problem with your water heater and are not temperatures, it must be drained. Water, if left in the tank and pleased with the service you received: allowed to freeze, will damage the heater. • First, please contact your dealer or the authorized service • Turn off the gas and cold water inlet valve to the heater. agent in your area and explain to them why you are not satisfied. This will usually correct the problem. • Op
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WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY. TROUBLESHOOTING For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. PROBLEM POSSIBLE MALFUNCTION SERVICE TO BE PERFORMED 1) Blower will not run A) “ON/OFF” control switch turned off Turn switch to the “ON” position. B) Blower unplugged Plug blower back into 115 vac. outlet. C) No power at outlet
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TROUBLE SHOOTING Water heater may exhibit problems that are unrelated to a malfunction of the water heater itself. The following information and tables may serve to answer your question about a problem that you are having without having to call a service agent. WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY. TROUBLE SHOOTING GUIDE Please check guidelines below. For your safety, water heater service should be performed only by a qualified servi
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LIMITED RESIDENTIAL GAS WARRANTY THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY. If the state of California where such charges are the manufacturer’s glass lined tank in this water heater shall prove upon examination by the A. O. responsibility. Smith Corporation (warrantor) to have leaked during the warranty period in c. All cost necessary or incidental for handling and administrative normal residential use, due to natural corrosion from potable water therein, the charges, and for any
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A.O. SMITH WATER PRODUCTS CO., INC. 500 Tennessee Waltz Parkway, Ashland City, TN 37015 Phone: 1-800-821-2017 Website: www.hotwater.com 20
