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A.O. Smith GPS-75 Owner's Manual

Gas models power vent with hot surface ignition
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See also: Instruction Manual
RESIDENTIAL
Thank you for buying this A. O. Smith energy efficient water
heater. We appreciate your confidence in our products.
You should thoroughly read this manual before installation and/
or operation of this water heater. Please pay particular attention
to the important safety and operating instructions as well as
the WARNINGS and CAUTIONS.
KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE
PRINTED IN U.S.A. 0805
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
GAS WATER HEATERS
GAS MODELS
Power Vent
GPS-75
with Hot Surface Ignition
TABLE OF CONTENTS
GET TO KNOW YOUR WATER HEATER
GENERAL SAFETY INFORMATION
INSTALLATION
OPERATION
MAINTENANCE AND
TROUBLESHOOTING
TROUBLESHOOTING WITH THE LEDs
WARRANTY
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE
READ
INSTALLING AND USING THIS APPLIANCE.
A DIVISION OF A. O. SMITH CORPORATION
www.hotwater.com
1
OWNER'S MANUAL
CAUTION
THOROUGHLY
BEFORE
PART NO. 197209-000
PAGE
2
3-4
4-12
12-14
14-17
18
19

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Summary of Contents for A.O. Smith GPS-75

  • Page 1 KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. PRINTED IN U.S.A. 0805 GAS WATER HEATERS OWNER'S MANUAL GAS MODELS Power Vent GPS-75 with Hot Surface Ignition TABLE OF CONTENTS GET TO KNOW YOUR WATER HEATER GENERAL SAFETY INFORMATION INSTALLATION OPERATION...

  • Page 2: Get To Know Your Water Heater

    GET TO KNOW YOUR WATER HEATER REPLACEMENT PARTS AND DELIMING PRODUCTS Replacement parts and recommended delimer may be ordered through authorized servicers or distributors. Refer to the Yellow Pages for your plumber or contact the water heater manufacturer by calling 1-800-821-2017. When ordering parts, provide complete model and serial numbers (see rating plate), quantity and name of part desired (as listed in fig.

  • Page 3: General Safety Information

    GENERAL SAFETY INFORMATION EXTERNAL DAMAGE Do not operate the water heater until it has been fully checked out by a qualified technician, if the water heater: • Has been exposed to fire or damage. • Displays evidence of sooting. • Produces steam or unusually hot water. If the water heater has been subject to flooding it must be replaced.

  • Page 4: Installation

    • Do not cover the instruction manual. Keep it on the side of the water heater or nearby for future reference. • Do obtain new warning and instruction labels for placement on the blanket directly over the existing labels. • Do inspect the insulation blanket frequently to make certain it does not sag, thereby obstructing combustion air flow.
  • Page 5 not known, the latest edition of National Fuel Gas Code ANSI Z223.1 recommends using figures of 20-25 percent free area for wood louvers or 60-75 percent for metal grills or louvers. UNCONFINED SPACE In buildings of conventional frame, brick or stone construction, unconfined spaces may provide adequate air for combustion, ventilation, and dilution air for power venter.

  • Page 6: Connection Of Gas Pipe

    WARNING VENT HOOD(S) MAY BE EXTREMELY HOT DURING OPERATION. REFER TO FIG. 1 FOR CONNECTION DETAILS. BEFORE ATTACHING THE GAS LINE BE SURE THAT ALL GAS PIPE IS CLEAN ON THE INSIDE. TO TRAP ANY DIRT OR FOREIGN MATERIAL IN THE GAS SUPPLY LINE, A DIRT LEG (SOMETIMES CALLED DRIP LEG) MUST BE INCORPORATED IN THE PIPING, FIG.

  • Page 7: Planning The Vent System

    BETWEEN THE RELIEF VALVE AND TANK. DO NOT PLUG THE RELIEF VALVE. The drain line connected to this valve must not contain a reducing coupling or other restriction and must terminate near a suitable drain to prevent water damage during valve operation. The discharge line shall be installed in a manner to allow complete drainage of both the valve and line.

  • Page 8: Installation Of Vent System

    NOTE: This unit can be vented using only PVC (Class 160, ASTM D-2241; Schedule 40, ASTM D-1785; or Cellular Core Schedule 40 DWV, ASTM F-891), Schedule 40 CPVC/ASTM F-441), or ABS/ASTM D-2661) pipe. The fittings, other than the TERMINATION 45° ELBOW should be equivalent to PVC- DWV fittings meeting ASTM D-2665 (Use CPVC fittings, ASTM F-438 for CPVC pipe and ABS fittings, ASTM D-2661/3311 for ABS pipe.
  • Page 9 3. Make sure that plastic tubing is still attached to the pressure switch and fan housing. Also make sure that wiring connector from motor to control box is securely attached. 4. Do not plug in power cord until vent system is completely installed.

  • Page 10: Installation Of Vent System, Sidewall

    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.
  • Page 11 2. SELECTION OF MATERIALS • Cutting Device - Saw or Pipe Cutter • Deburring Tool, Knife, File, or Beveling Machine (2" and above) • Brush - Pure Bristle • Rag - Cotton (Not Synthetic) • Primer and Cleaner • Solvent Cement - PVC for PVC Components and CPVC for CPVC Components •...

  • Page 12: Operation

    STEP E 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.

  • Page 13: For Your Safety Read Before Operating

    FOR YOUR SAFETY READ BEFORE OPERATING WARNING: 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 with an ignition device which automatically lights the burner.

  • Page 14: Temperature Regulation

    TEMPERATURE REGULATION CAUTION THIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE THERMOSTAT TO CONTROL WATER TEMPERATURE. HOT WATER TEMPERATURES REQUIRED FOR AUTOMATIC DISHWASHER AND LAUNDRY USE CAN CAUSE PAINFUL SCALDING WITH POSSIBLE SERIOUS AND PERMANENT INJURY. THE TEMPERATURE AT WHICH INJURY OCCURS VARIES WITH THE PERSON'S AGE AND THE TIME OF EXPOSURE.

  • Page 15: Main Burner

    PERFORMED ONLY BY A QUALIFIED SERVICE TECHNICIAN. READ THE GENERAL SAFETY INFORMATION SECTION FIRST. USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS COMPONENTS WEAR OUT OVER A PERIOD OF TIME. THE GAS CARRYING COMPONENTS OF THIS APPLIANCE SHOULD BE INSPECTED FOR PROPER OPERATION PERIODICALLY BY A QUALIFIED SERVICE TECHNICIAN.

  • Page 16: Service And Repair

    If the heater is to be shut off and exposed to freezing temperatures, it must be drained. Water, if left in the tank and allowed to freeze, will damage the heater. • Turn off the gas and cold water inlet valve to the heater. •...
  • Page 17 WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. PROBLEM 1) Blower will not run A ) “ON/OFF”...

  • Page 18: Error Led Statuses

    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.

  • Page 19: Limited Residential Gas Warranty

    Any claim under this warranty should be initiated with the dealer who sold the heater, or with any other dealer handling the warrantor’s products. If this is not practical, the owner should contact: A.O. Smith Water Products Company at 500 Tennessee Waltz Parkway; Ashland City, TN 37015 or by calling 1-800-821-2017.
  • Page 20 A.O. SMITH WATER PRODUCTS CO., INC. 500 Tennessee Waltz Parkway, Ashland City, TN 37015 Phone: 1-800-821-2017 Website: www.hotwater.com...

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