A.O. SmithメーカーDSE-5 THRU DSE-120の使用説明書/サービス説明書
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1 • Installation • Operation • Maintenance • Checklist • Limited W arranty CAUTION TEXT PRINTED OR OUTLINED IN RED CONT AINS INFORMA TION RELA TIVE TO YOUR SAFETY . PLEASE READ THOROUGHL Y BEFORE INST ALLING AND USING THIS APPLIANCE. KEEP THIS MANUAL WITH THE HEA TER FOR FUTURE REFERENCE.
2 ST ANDARD BTU/ 3 0 ° 4 0 ° 5 0 ° 6 0 ° 7 0 ° 8 0 ° 9 0 ° 100° 1 10° 120° 130° 140° KW I N PU T HOUR 3 10,239 41 31 24 20 17 15 13 12 1 1 10 10 9 6 20,478 82 62 49 41 35 31 27 25 22 21 1 .
3 CONTENTS P AGE ROUGH-IN-DIMENSIONS . . . . . . . . . . . . . . . . ...................... 2 RECOVERY CAP ACITY ....................................... 2 FOREWORD ......................................................... 3 APPROV ALS ................
4 GETTING T O KNOW YOUR W A TER HEA TER Below is an illustration of the water heater with its features called out. The text of this manual will refer to the items shown.
5 GENERAL SAFETY INFORMA TION INSULA TION BLANKETS Insulation blankets available to the general public for external use on electric water heaters are not approved for use on your A.O. Smith water heater . The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank water heaters.
6 RELIEF DEVICES An unplugged 3/4” relief valve opening is provided for installing temperature and pressure relief valve. CAUTION: TO REDUCE THE RISK OF EXCESSIVE PRESSURES AND TEMPERA TURE IN THIS .
7 PIPING DIAGRAM ONE OR TWO TEMPERA TURE - ONE HEA TER ONE OR TWO TEMPERA TURE - TWO HEA TER DANGER : TEMPERA TURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERA TURE A T FIXTURES.
8 ONE OR TWO TEMPERA TURE - THREE HEA TERS ONE OR TWO TEMPERA TURE - FOUR HEA TERS CAUTION: IF BUILDING COLD W A TER SUPPL Y HAS A BACK-FLOW PREVENTER, CHECK V AL VE OR W A TER METER WITH CHECK V AL VE, PROVISIONS FOR THERMAL EXP ANSION OF W A TER IN THE HOT W A TER SYSTEM MUST BE PROVIDED.
9 MEDIUM TEMPERA TURE - ONE HEA TER VERTICAL STORAGE T ANK MEDIUM TEMPERA TURE - ONE HEA TER HORIZONT AL STORAGE T ANK *PIPE RELIEF V AL VE TO OPEN DRAIN. †T ANK TEMPERA TURE CONTROL SET A T DESIRED TEMPERA TURE (MAX. 170°). HEA TER THERMOST A T SET A T LEAST 5° HIGHER.
10 MEDIUM TEMPERA TURE - TWO HEA TERS HORIZONT AL STORAGE T ANK MEDIUM TEMPERA TURE - TWO HEA TERS VERTICAL ST ORAGE T ANK RETURN LINE FROM FIXTURE CIRCULA TING LOOP (IF USED) SHOULD CONNECT TO ANY OPENING NEAR BOTTOM OF T ANK. * PIPE RELIEF V A L VE TO OPEN DRAIN.
11 MEDIUM TEMPERA TURE - THREE HEA TERS HORIZONT AL ST ORAGE T ANK MEDIUM TEMPERA TURE - THREE HEA TERS VERTICAL STORAGE T ANK * PIPE RELIEF V AL VE TO OPEN DRAIN † T ANK TEMPERA TURE CONTROL SET A T DESIRED TEMPERA TURE (MAX. 170°). HEA TER THERMOST A T SET A T LEAST 5° HIGHER.
12 MEDIUM TEMPERA TURE - FOUR HEA TERS HORIZONT AL STORAGE T ANK MEDIUM TEMPERA TURE - FOUR HEA TERS VERTICAL STORAGE T ANK CAUTION: IF BUILDING COLD WA TER SUPPL Y HAS A BACK-FLOW PREVENTER, CHECK V A LVE OR W A TER METER WITH CHECK V AL VE, PROVISIONS FOR THERMAL EXP ANSION OF W A TER IN THE HOT W A TER SYSTEM MUST BE PROVIDED.
13 ELECTRICAL GENERAL The installation must conform to these instructions, the local code authority having jurisdiction, and the requirements of the power company .
14 AMPERAGE T ABLE/OVERCURRENT PROTECTION This table provides the total connected heating element load in amperes for branch circuit conductor and over current protection sizing. Single-phase heaters are two wire circuits. Three-phase heaters are three wire circuits.
15 SMALL COMMERCIAL WIRE DIAGRAM 208-240V / 3PH SMALL COMMERCIAL WIRE DIAGRAM 208-240V / 3-1PH.
16 3-1 PHASE CONVERSIONS In the case where the unit is phase convertible and it has only one contactor , jumper wires (provided) must be added according to the phase of the supply voltage. See the diagram below . For single-phase connection, jumpers A-C and B-D must be added.
17 SMALL COMMERCIAL WIRE DIAGRAM SINGLE PHASE SMALL COMMERCIAL WIRE DIAGRAM 300-600V / 3PH.
18 OPERA TION GENERAL Never operate the heating elements without being certain the water heater is filled with water , and a temperature and pressure relief valve is installed in the relief valve opening. FILLING 1. T urn off the electrical disconnect switch.
19 MAINTENANCE Always close the front access door after making a temperature adjustment. T urn on electricity . DRAINING The water heater must be drained if it is to be shut down and exposed to freezing temperatures. Maintenance and service procedures may also require draining the heater .
20 5. Remove the bolts from each element. 6. Remove the elements from the openings. • Use a twisting, pulling action to remove elements scaled beyond size of the tank openings. • Brush loose scale from elements. 7. Lime scale removal. • Place limed ends of heating elements into UN•LIME delimer and allow scale to dissolve.
21 When such a condition is encountered, local codes or inspection agency should be consulted to determine which system is acceptable in your area. These may consist of: • Installation of a second relief valve set to lower than the primary safety relief valve.
22 LEAKAGE CHECKPOINTS INSTRUCTIONS: USE THIS ILLUSTRA TION AS A GUIDE WHEN CHECKING FOR SOURCES OF W A TER LEAKAGE. YOU OR YOUR DEALER MA Y BE ABLE TO CORRECT WHA T APPEARS T O BE A PROBLEM. Water on side of the tank may be condensation due to the panel or insulation not being in place.
23 MODEL DSE LIMITED W ARRANTY A.O. Smith Corporation, the warrantor , extends the following LIMITED W ARRANTY to the owner of this water heater: 1. THE T ANK If the glass-lined tank in this water hea.
24 5621 W . 1 15TH STREET , ALSIP , IL 60803 Phone: 800-433-2545 Fax: 800-433-2515 w w w.hotwater .com E-Mail: parts@hotwater .com REPLACEMENT P ARTS.
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