A.O. SmithメーカーWATER HEATERSの使用説明書/サービス説明書
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1 Instruction Manual PRINTED IN THE U.S.A 1203 P ART NO. 184639-000 KEEP THIS MANUAL IN THE POCKET ON HEA TER FOR FUTURE REFERENCE WHEN EVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. ALL TECHNICAL AND W ARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE W A TER HEA TER WAS PURCHASED.
2 SAFE INST ALLA TION, USE AND SERVICE Y our safety and the safety of others is extremely important in the inst allation, use and servicing of this water heater . 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.
3 GENERAL SAFETY SAFE INST ALLA TION, USE AND SERVICE .............................. 2 GENERAL SAFETY .................................................................. 3 T ABLE OF CONTENTS .............................................................
4 Thank Y ou for purchasing this water heater. Properly inst alled and maintained, it should give you years of trouble free service. Abbreviations Found In This Instruction Manual: • ANSI - American.
5 TYPICAL INST ALLA TION FIGURE 1. UPRIGHTS COMP ACTS T ABLE TOPS INSTA LL V ACUUM RELIEF IN COLD W A TER INLET LINE AS REQUIRED BY LOCAL CODES. INST ALL SUIT ABLE D RAIN P ANS UNDER HEA TERS TO PREVENT DAMAGE DUE TO LEAKAGE. REFER TO W A TER HEATER LOCATION ON P AGE 8.
6 WIRING DIAGRAMS TURN OFF THE HEA TER ELECTRICAL SUPPL Y BEFORE SERVICING ANY ELECTRICAL COMPONENTS. FIGURE 2. A-9 240 VOL T “OFF PEAK” NON-SIMUL T ANEOUS OPERA TION BOTTOM ELEMENT ON SEP ARA TE .
7 MIXING V A L VE USAGE FIGURE 3. W ater (Potable) Heating: All models are considered suitable for water (potable) heating only . HOTTER W A TER CAN SCALD: W ater heaters are intended to produce hot water .
8 FACTS TO CONSIDER ABOUT THE LOCA TION 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.
9 The water within the water heater tank expands as it is heated and increases the pressure of the water system. If the relieving point of the water heater’s temperature-pressure relief valve is reached, the valve will relieve the excess pressure. The temperature-pressure relief valve is not intended for the constant relief of thermal expansion.
10 The Discharge Pipe: • Shall not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions. • Shall not be plugged or blocked.
11 KEEPING THE THERMOST A T SETTING A T 120°F WILL REDUCE THE RISK OF SCALDS. Figure 7 shows the approximate time-to-burn relationship for normal adult skin. The thermostats on your water heater have a linear relationship between degrees of angular rotation and the corresponding change in temperature.
12 THERMAL EXP ANSION W ater supply systems may , because of such events as high line pressure, frequent cut-offs, the effects of water hammer among others, have installed devices such as pressure reducing valves, check valves, back flow preventers, etc.
13 The water heater should be drained if being shut down during freezing temperatures. Also periodic draining and cleaning of sediment from the tank may be necessary . 1 . Turn electrical supply “OFF”. 2 . CLOSE the cold water inlet valve to the water heater .
14 LEAKAGE CHECKPOINTS Read this manual first. Then before checking the water heater make sure the electrical power supply has been turned “OFF” before checking the tank for leakage. *A. Condensation and dripping may be seen on pipes if the water temperature is low in humid weather or pipe connections may be leaking.
15 REP AIR P ARTS LIST DRAIN P A N 17 12 16 8 11 14 14 7 1 3 6 4 2 3 9 10 15 Key No. Part Description 1 Upper Heating Element (If Dual Element Unit) 2 Lower Heating Element 3 Element Gasket 4 Lower Th.
16 These guidelines should be utilized by a qualified service agent. TROUBLESHOOTING GUIDELINES Improperly sealed, hot or cold supply connection, relief valve or drain valve. Leakage from other appliances or water lines. Thermal expansion in closed water system.
17 RESIDENTIAL ELECTRIC W ARRANTY THIS W ARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONL Y . In accordance with the warranty terms and conditions specified below . A. O. Smith Water Heaters (the warrantor) will furnish the ORIGINAL OWNER, 1) a replacement A.
18 without invalidating the remainder of the affected provision or the other provisions of this warranty . SERVICE AND LABOR RESPONSIBILITY UNDER THIS LIMITED W ARRANTY , THE WARRANTOR WILL PROVIDE ONL Y A REPLACEMENT W A TER HEA TER OR P ART THEREOF .
19 NOTES: ___________________________________________________ ___________________________________________________ ___________________________________________________ __________________________________.
20 www.aosmithwaterheaters.com.
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