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RESIDENTIAL
Thank you for buying this energy efficient water heater from
A.O. Smith Water Products Company. We appreciate your
confidence in our product.
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
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
PRINTED IN U.S.A. 0805
GAS WATER HEATERS
Power Vented Gas Models
with Hot Surface Ignition
& 2"/3"/4" PVC Vent
TABLE OF CONTENTS
GET TO KNOW YOUR WATER HEATER
GENERAL SAFETY INFORMATION
INSTALLATION
OPERATION & LIGHTING INSTRUCTIONS
MAINTENANCE
TROUBLESHOOTING
WARRANTY
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ
THOROUGHLY BEFORE INSTALLING AND USING THIS
APPLIANCE.
A DIVISION OF A.O. SMITH CORPORATION
MCBEE, SOUTH CAROLINA
1
OWNER'S MANUAL
GPSX
Capability
CAUTION
www.hotwater.com
PART NO. 185388-000
PAGE
2
3
4-12
12-15
15-16
17-18
19
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Related Manuals for A.O. Smith GPSX-50L
Summary of Contents for A.O. Smith GPSX-50L
- Page 1 RESIDENTIAL GAS WATER HEATERS OWNER'S MANUAL Power Vented Gas Models Thank you for buying this energy efficient water heater from A.O. Smith Water Products Company. We appreciate your GPSX confidence in our product. with Hot Surface Ignition You should thoroughly read this manual before installation and/ or operation of this water heater.
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Page 2: Get To Know Your Water Heater
GET TO KNOW YOUR WATER HEATER REPLACEMENT PARTS AND DELIMING PRODUCTS (A) VENT PIPE-EXHAUST (N) COLD WATER INLET (O) INLET DIP TUBE (B) ANODE (C) HOT WATER OUTLET (P) TEMPERATURE AND Replacement parts and recommended delimer may be ordered PRESSURE RELIEF VALVE (D) OUTLET (115 VAC) through authorized servicers or distributors. -
Page 3: General Safety Information
then call your gas supplier or service agent. Keep area clear until a service call has been made. GENERAL SAFETY INFORMATION At times you may not be able to smell an LP gas leak. One cause is odor fade, which is a loss of the chemical odorant that gives LP EXTERNAL DAMAGE gas its distinctive smell. -
Page 4: Installation
AIR REQUIREMENTS INSTALLATION Dilution air temperature must be 100°F or less. In calculating the free area of a vent opening, the blocking effect of screens, louvers and grills should be considered. Screens shall not be of a mesh REQUIRED ABILITY smaller than 1/4 inch square. -
Page 5: Water Connections
CAUTION In cold climates provide protection against freeze-up. THE HEATER SHOULD BE LOCATED IN AN AREA WHERE LEAKAGE OF THE TANK OR CONNECTIONS WILL NOT RESULT IN DAMAGE TO THE AREA ADJACENT TO THE HEATER OR TO LOWER FLOORS OF THE STRUCTURE. When such locations cannot be avoided, a suitable drain pan should be installed under the heater, see fig. -
Page 6: Vent Pipe Termination
To prevent damage, care must be taken not to apply too much IMPORTANT torque when attaching gas supply pipe to gas valve inlet. The The vent system must terminate so that proper clearances are thermostat inlet has a pad for use with back up wrench. maintained as cited in local codes or the current edition of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, 7.3.4e and 7.8a,b, Apply joint compounds (pipe dope) sparingly and only to the... - Page 7 WARNING VENT HOOD(S) MAY BE EXTREMELY HOT DURING OPERATION FIGURE 3 The wall plate is supplied for decorative purposes only and is 3. A) MASONRY SIDE WALLS not a requirement for the vent termination (if not needed by the Chisel an opening approximately one half inch larger than the installer).
- Page 8 THIS UNIT IS MANUFACTURED WITH AN EXTERNAL CONTROL c.) Install suitable conduit fitting in side of enclosure and HARNESS FOR EASIER REPLACEMENT IF THE HARNESS OR then follow (d.) and (e.) below. CONNECTORS GET DAMAGED d.) Splice field wiring into existing wiring using code Do not plug in power cord until vent system is completely authorized method (wire nuts, etc.).
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Page 9: Installation Of Vent System
TABLE FOR VENT PIPE LENGTH TWO INCH DIAMETER PIPE **Number of 90º Elbows **Number of 45º Elbows Minimum Pipe Maximum Pipe One (1) None 2 Ft. 30 Ft. One (1) One (1) 1 Ft. 27.5 Ft. Two (2) None 1 Ft. 25 Ft. -
Page 10: Vertical Vent Through Roof
C. Know the reputation of your manufacturer and their VERTICAL VENT THROUGH ROOF products. This unit is approved for venting through the roof with the type D. Know your own qualifications or those of your contractor. vent terminal that is included with the unit. A proper flashing or The solvent welding technique of joining PVC and CPVC “BOOT”... - Page 11 D. Inspection, cleaning, priming RECOMMENDED BRUSH* SIZE FOR PRIMER Visually inspect the inside of the pipe and fitting sockets and AND CEMENT APPLICATIONS remove all dirt, grease or moisture with a clean dry rag. If Nominal Pipe Size Brush Width wiping fails to clean the surfaces, a chemical cleaner must (IPS) (INS.)
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Page 12: Operation
G. Cleanup and joint movement Remove all excess cement from around the pipe and fitting with a dry cotton rag. This must be done while the cement is still soft. The joint should not be disturbed immediately after the cementing procedure, and sufficient time should be allowed for proper curing of the joint. -
Page 13: For Your Safety Read Before Operating
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. -
Page 14: Temperature Regulation
TEMPERATURE REGULATION To avoid any unintentional changes in water temperature settings, the control has a tamper resistant feature for changing the temperature setting. To change the temperature setting follow these instructions: 1. “Wake Up” the temperature indicators by holding down both “COOLER”... -
Page 15: Maintenance
WATER HEATING IGNITION SEQUENCE CONTROL SEQUENCE - HOT SURFACE DIRECT IGNITION (Make sure gas and electric power are connected properly) Pre-purge seconds. HSI Warm-up 20 seconds. 1) The ignition control module is powered and monitors the Ignition Activation Period seconds. system, waiting for a call for heat from the thermostat. -
Page 16: Venting System
VENTING SYSTEM • Turn off the gas and cold water inlet valve to the heater. • Open a nearby hot water faucet and the heater drain valve. HAVE VENTING SYSTEM CHECKED EVERY SIX MONTHS FOR OBSTRUCTIONS AND/OR DETERIORATION IN VENT PIPING. •... -
Page 17: Troubleshooting
WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY. 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. PROBLEM SOLUTION LED STATUS... - Page 18 TROUBLE SHOOTING (Continued) PROBLEM CAUSE SOLUTION 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. Repair service to outlet. D) Thermostat defective.
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Page 19: Limited Residential Gas Warranty
LIMITED RESIDENTIAL GAS WARRANTY THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY . If the b. Shipping and delivery charges for forwarding the new water heater glass lined tank in this water heater shall prove upon examination by A. O. or replacement part from the nearest distributor and returning the Smith Corporation (the warrantor) to have leaked during the warranty claimed defective heater or part to such distributor except in the... -
Page 20: Replacement Parts
REPLACEMENT PARTS 5621 W. 115TH STREET, ALSIP, IL 60803 PHONE: 1-800-433-2545 FAX: 1-800-433-2515 www.hotwater.com E-mail: parts@hotwater.com...