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A.O. Smith GPSH - page 1
1 PRINTED IN U.S.A. 0605 P ART NO. 185171-001 KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. Power V ented Gas Models GPSH/GPCR with Hot Surface Ignition Thank you for buying this energy efficient water heater from A.O. Smith W ater Products Company . We appreciate your conf ...
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A.O. Smith GPSH - page 2
2 GET TO KNOW YOUR W A TER HEA TER ( A ) V ent Pipe - Exhaust ( B) V ent T erminal (C ) V ent Adapter-Rubber Boot (D) Blower Assembly (E) Cold Water Inlet (F ) Inlet W ater Shut-off V alve ( G ) Union (H ) Inlet Dip Tube (J ) Anode** ( K) Hot Water Outlet ( L ) Oulet Recept acle (1 15 V AC) (M) T emperature-Pressure Relief V alve ( N) Flue REPLACEM ...
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A.O. Smith GPSH - page 3
3 then call your gas supplier or service agent. Keep area clear until a service call has been made. 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 gas its distinctive smell. Another cause can be your physical condition, such as having a cold or a diminishing sense ...
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A.O. Smith GPSH - page 4
4 AIR REQUIREMENTS 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 smaller than 1/4 inch square. If the free area is not known, the current edition of National Fuel Gas Code ANSI Z223.1/NFP A 54 re ...
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A.O. Smith GPSH - page 5
5 CAUTION In cold climates provide protection against freeze-up. THE HEA TER SHOULD BE LOCA TED IN AN AREA WHERE LEAKAGE OF THE T ANK OR CONNECTIONS WILL NOT RESUL T IN DAMAGE TO THE AREA ADJACENT TO THE HEA TER OR TO LOWER FLOORS OF THE STRUCTURE. When such locations cannot be avoided, a suitable drain pan should be installed under the heater , se ...
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A.O. Smith GPSH - page 6
6 T o prevent damage, care must be taken not to apply too much torque when attaching gas supply pipe to gas valve inlet. The thermostat inlet has a pad for use with back up wrench. Apply joint compounds (pipe dope) sparingly and only to the male threads of pipe joints. Do not apply compound to the first two threads. Use compounds resistant to the a ...
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A.O. Smith GPSH - page 7
7 3. A) MASONRY SIDE WALLS Chisel an opening approximately one half inch larger than the marked circle. B) WOODEN SIDE WALLS Drill a pilot hole approximately one quarter inch outside of the marked circle. This pilot hole is used as a starting point for a saws-all or sabre saw blade. Cut around the marked circle staying approximately one quarter inc ...
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A.O. Smith GPSH - page 8
8 FIGURE 6 d . ) Splice field wiring into existing wiring using code authorized method (wire nuts, etc.). e. ) Be certain that neutral and line connections are not reversed when making these connections. f .) Close panel on the side of control box, make sure that access panel is secured shut. CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERV ...
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A.O. Smith GPSH - page 9
9 INST ALLA TION OF VENT SYSTEM CAUTION FOR INST ALLA TION OF A NEW VENT SYSTEM, FOLLOW THE GUIDELINES IN THE MANUAL. FOR PRE-EXISTING VENT SYSTEMS, INSPECT THE VENT FOR BLOCKAGE OR ANY SIGNS OF DAMAGE. CHECK TO SEE IF THE VENT PIPE IS PROPERL Y PITCHED AND ITS JOINTS SECURED. FOLLOW THE VENTING SPECIFICA TIONS IN THIS MANUAL FOR THE RECOMMENDED VE ...
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A.O. Smith GPSH - page 10
10 VERTICAL VENT THROUGH ROOF This unit is approved for venting through the roof with the type vent terminal that is included with the unit. A proper flashing or “BOOT” should be used to seal the pipe where it exits the roof. The total vent system should not exceed that which is specified in the table on page 9. All of the pipe should be secure ...
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A.O. Smith GPSH - page 11
11 RECOMMENDED BRUSH* SIZE FOR PRIMER AND CEMENT APPLICA TIONS Nominal Pipe Size Brush Width (IPS) (INS.) 2 1-1/2 3 1-1/2 - 2-1/2 *USE ONL Y NA TURAL BRISTLE 3. MAKING THE JOINT A. Cutting Pipe must be squarely cut to allow for the proper interfacing of the pipe end and the fitting socket bottom. This can be accomplished with a miter box saw or whe ...
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A.O. Smith GPSH - page 12
12 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. Exact drying time is difficult to pred ...
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A.O. Smith GPSH - page 13
13 FOR YOUR SAFETY READ BEFORE OPERA TING W ARNING: If you do not follow these instructions exactly , a fire or explosion may result causing property damage, personal injury or loss of life. A . This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner . Do NOT try to light the burner by hand ...
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A.O. Smith GPSH - page 14
14 TEMPERA TURE REGULA TION W ARNING THIS WA TER HEA TER IS EQUIPPED WITH AN ADJUST ABLE THERMOST A T TO CONTROL W ATER TEMPERA TURE. HOT W A TER TEMPERA TURES REQUIRED FOR AUT OMA TIC DISHW ASHER AND LAUNDR Y USE CAN CAUSE P AINFUL SCALDING WITH POSSIBLE SERIOUS AND PERMANENT INJURY . THE TEMPERA TURE A T WHICH INJURY OCCURS V ARIES WITH THE PERSO ...
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A.O. Smith GPSH - page 15
15 W A TER HEA TING IGNITION SEQUENCE (Make sure gas and electric power are connected properly) 1) The ignition control module is powered and monitors the system, waiting for a call for heat from the thermostat. 2) The thermostat calls for heat by reading a resistance value within a given range directly proportional to water temperature. 3) The con ...
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A.O. Smith GPSH - page 16
16 VENTING SYSTEM HA VE VENTING SYSTEM CHECKED EVERY SIX MONTHS FOR OBSTRUCTIONS AND/OR DETERIORA TION IN VENT PIPING . BLOWER ASSEMBL Y MAINTENANCE CAUTION The air flow restrictor screen on the inlet side of the blower unit should be checked periodically for any accumulation of dust and lint. Any build up of dirt in the screen can result in insuff ...
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A.O. Smith GPSH - page 17
17 TROUBLE SHOOTING Please check guidelines below. For your safety , water heater service should be performed only by a qualified service technicia n. Read the GENERAL SAFETY INFORMA TION section first. PROBLEM SOLUTION An open earth ground circuit to the 1. Check that the earth ground connection is ignition system. properly connected. 2. Check tha ...
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A.O. Smith GPSH - page 18
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 1 15 V ac. outlet. C) No power at outlet. Repair service to outlet. D) Thermostat defective. Replace thermostat. E) Control harness defective. Repl ...
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A.O. Smith GPSH - page 19
19 THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONL Y . If the glass lined t ank in this water heater shall prove upon examination by A. O. Smith Corporation (the warrantor) to have leaked during the warranty period in normal residential use, due to natural corrosion from potable water therein, the warrantor will furnish the ORIGINAL OWNER a r ...
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A.O. Smith GPSH - page 20
20 5621 W . 1 15TH STREET , ALSIP , IL 60803 PHONE: 1-800-433-2545 F AX: 1-800-433-2515 w w w .hotwater .com E-mail: p arts@hotwater .com REPLACEMENT P ARTS ...
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