A.O. SmithメーカーDVE-150, DHE-200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 1 207 09063340-000 PLACE THESE INSTRUCTIONS ADJACENT TO HEA TER AND NOTIFY OWNER T O KEEP FOR FUTURE REFERENCE. COMMERCIAL ELECTRIC W A TER HEA TERS ASM E Thank you for buying this energy efcient water heat er from A.
2 SAFE INS T ALLA TION, USE, AND SER VICE The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. 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 When servicing this unit, verify the power to the unit is turned off prior to opening the control cabinet door ..
4 Thank Y ou for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service. Abbreviations Found In This Instruction Manual: • ANSI - American .
5 DIMENSIONS AND CAP ACITIES DA T A.
6 FEA TURES AND COMPONENTS Y our actual conguration may vary . DVE V ertical W ater Heater (typical)..
7 FEA TURES AND COMPONENTS Y our actual conguration may vary . DHE Horizontal W ater Heater (typical)..
8 F ACTS TO CONSIDER ABOUT THE LOCA TION Carefully choose a location for the new water heater . 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 refrig erants , swimming pool chemicals, water softene r c hemical s, calcium and sodium chloride, waxes, and process chemicals are typ ical com poun ds which are pot enti all y cor ros ive. The se mater ials are corrosive at very low concentration levels with little or no odor to reveal their presence.
10 T ABLE 1. BRANCH CIRCUIT WIRE SIZE. These ampacities relate only to conductors described in T able 310-13 of the NEC. For ambient temperatures over 30°C, see Correction Factors, Note 13 in the NEC. ELECTRICAL GENERAL Check the water heater model and rating plate information against the characteristics of the branch circuit electrical supply .
11 ELECTRICAL AND RECOVERIES DA T A T ABLE 2..
12 WIRING DIAGRAMS TURN OFF THE HEA TER ELECTRICAL SUPPL Y BEFORE SER VICING ANY ELECTRICAL COMPONENTS. 300-600 VOL TS ST ANDARD THERMOST A T CONTROL WIRING (WYE).
13 WIRING DIAGRAMS TURN OFF THE HEA TER ELECTRICAL SUPPL Y BEFORE SER VICING ANY ELECTRICAL COMPONENTS. 208-240 VOL TS, ST ANDARD THERMOST A T CONTROL WIRING (DEL T A).
14 HOTTER W A TER CAN SCALD: Water heaters are intended to produce hot water . W ater heated to a temperature which will satisfy space heating, clothes washing, dish washing, and other sanitizing needs can instantly scald and permanently injure you upon contact.
15 in st r uc ti on s fo r ins ta ll ati on of t he va lv es. Be fo re cha ng in g the f ac to ry se tt i ng o n t he the rm os t at , rea d t he entire “Te mp era tu re Reg ul at i on ” section in this manual. It is recommended that lower water temperatures be used to avoid the risk of scalding.
16 TEMPERA TURE-PRESSURE RELIEF V AL VE OPERA TION The TEMPERA TURE-PRESSURE RELIEF V AL VE m u s t b e manually operated at least once a month. Lift the lever at the top of valve several times until the valve seats properly and operates freely , see Figure 2B.
17 TROUBLESHOOTING CHECKLIST Before calling for service, check the following points to see if the cause of trouble can be identied and corrected. Reviewing this checkl ist may eliminate the need of a servi ce call and quickl y restore hot water service.
18 W ARRANTY A. O. Smith Corporation, the warrantor , extends the following LIMITED WARRANTY to the owner of this water heater: 1. THE T ANK If the glass-lined tank in this water heater shall prove up.
19 NOTES.
20 www .aosmithwaterheaters.com.
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