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Manual A.O. Smith DRE

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  • A.O. Smith DRE - page 1

    1 COMMERCIAL ELECTRIC W A TER HEA TERS CAUTION TEXT PRINTED OR UNDERLINED IN RED CONT AINS INFORMA TION RELA TIVE TO YOUR SAFETY . PLEASE READ THOROUGHL Y BEFORE A TTEMPTING ANY CONVERSION. PRINTED IN U.S.A. 0906 P ART NO. 196674-001 A DIVISION OF A.O. SMITH CORPORA TION MCBEE, SOUTH CAROLINA ww w .hotwater .com Models DRE & DVE - 52/80/120 • ...

  • A.O. Smith DRE - page 2

    2 Rough-in-Dimensions Model Number T ank Cap acity in Gallons A B Inlet/Outlet DRE/DVE-52 50 55 1/4 21 3/4 1 1/4 DRE/DVE-80 80 59 1/2 25 1/4 1 1/4 DRE/DVE-120 1 19 62 1/4 29 1/2 1 1/4 Get to know your water heater ...

  • A.O. Smith DRE - page 3

    3 Contents Page ROUGH-IN-DIMENSIONS ....................................... 2 GET TO KNOW YOUR W ATER HEA TER ............... 2 RECOVERY CAP ACITY ........................................... 3 APPROV ALS ............................................................ 3 MODEL AND RA TING PLA TE .................................. 4 FOREWORD ............ ...

  • A.O. Smith DRE - page 4

    4 Model and Rating Foreword Detailed installation diagrams are in this manual. These diagrams will serve to provide the installer with a reference for the materials and method of piping suggested. IT IS NECESSARY THA T ALL W A TER PIPING AND THE ELECTRICAL WIRING BE INST ALLED AND CONNECTED AS SHOWN IN THE DIAGRAMS. Particular attention should be g ...

  • A.O. Smith DRE - page 5

    5 Inst allation REQUIRED ABILITY INST ALLA TION OR SERVICE OF THIS W A TER HEA TER REQUIRES ABILITY EQUIV ALENT TO THA T OF A LICENSED TRADESMAN IN THE FIELD INVOL VED. PLUMBING AND ELECTRICAL WORK ARE INVOL VED. GENERAL The installation must conform to these instructions and the local code authority having jurisdiction. Grounding and electrical wi ...

  • A.O. Smith DRE - page 6

    6 The pressure setting of the relief valve should not exceed the pressure capacity of any component in the system. The temperature setting of the relief valve should not exceed 210°F . An unplugged 3/4" relief valve opening is provided for installing temperature and pressure relief valve. TEMPERA TURE LIMITING CONTROL(S) Both the DVE and DRE ...

  • A.O. Smith DRE - page 7

    7 Piping Diagrams ONE TEMPERA TURE WITH CIRCULA TING LOOP INSERT B V ACUUM RELIEF V AL VE. INST ALL PER LOCAL CODES. CAUTION: IF BUILDING COLD W ATER SUPPL Y HAS A BACK- FLOW PREVENTER, CHECK V A L VE OR WA TER METER WITH CHECK V A L VE. PROVISIONS FOR THERMAL EXP ANSION OF W A TER IN THE HOT W A TER SYSTEM MUST BE PROVIDED. *PIPE T O OPEN DRAIN IN ...

  • A.O. Smith DRE - page 8

    8 INSER T B V ACUUM RELIEF V AL VE. INST ALL PER LOCAL CODES. DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERA TURE A T FIXTURES. SEE WA TER TEMPERA TURE CONTROL WARNING ON P AGE 6. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY T O O BTAIN ADEQUATE BOOSTER OUTPUT , A DD AN ANTI-SCALD V AL VE FOR HOT WA TER SUPPLIED TO FIXTURES. ...

  • A.O. Smith DRE - page 9

    9 INSER T B V ACUUM RELIEF V AL VE. INST ALL PER LOCAL CODES. DANGER TEMPERA TURE SETTING SHOULD NOT EXCEED SAFE TEMPERA TURE AT FIXTURES. SEE W A TER TEMPERATURE CONTROL WARNING ON P AGE 6. IF HIGHER PREHEAT TEMPERA TURES ARE NECESSARY TO OBT AIN ADEQUA TE BOOSTER OUTPUT , ADD AN ANTI-SCALD VA LVE FOR HOT WA TER SUPPLIED T O FIXTURES. ...

  • A.O. Smith DRE - page 10

    10 ONE TEMPERA TURE ONE HEA TER VERTICAL ST ORAGE T ANK FORCED CIRCULA TION WITHOUT BUILDING RECIRCULA TION TWO TEMPERA TURE WITH MIXING V AL VE AND CIRCULA TING LOOP INSER T B V ACUUM RELIEF V ALVE. INST ALL PER LOCAL CODES. TWO TEMPERA TURE WITH MIXING V AL VE CAUTION: IF BUILDING COLD W A TER SUPPL Y HAS A BACK-FLOW PREVENTER, CHECK V A L VE OR ...

  • A.O. Smith DRE - page 11

    11 INSER T B V ACUUM RELIEF V ALVE. INST ALL PER LOCAL CODES. DANGER TEMPERA TURE SETTING SHOULD NOT EXCEED SAFE TEMPERA TURE A T FIXTURES. SEE WA TER TEMPERA TURE CONTROL WARNING ON P AGE 6. IF HIGHER PREHEA T TEMPERA TURES ARE NECESSAR Y TO OBT AIN ADEQUA TE BOOSTER OUTPUT , ADD A N ANTI-SCALD VAL VE FOR HOT W A TER SUPPLIED TO FIXTURES. ...

  • A.O. Smith DRE - page 12

    12 DANGER TEMPERA TURE SETTING SHOULD NOT EXCEED SAFE TEMPERA TURE A T FIXTURES. SEE WA TER TEMPERA TURE CONTROL WARNING ON P AGE 6. IF HIGHER PREHEA T TEMPERA TURES ARE NECESSAR Y TO OBT AIN ADEQUA TE BOOSTER OUTPUT , ADD A N ANTI-SCALD VAL VE FOR HOT W A TER SUPPLIED TO FIXTURES. INSER T B V ACUUM RELIEF V AL VE. INST ALL PER LOCAL CODES. ...

  • A.O. Smith DRE - page 13

    13 INSER T B V ACUUM RELIEF V AL VE. INST ALL PER LOCAL CODES. DANGER TEMPERA TURE SETTING SHOULD NOT EXCEED SAFE TEMPERA TURE A T FIXTURES. SEE WA TER TEMPERA TURE CONTROL WARNING ON P AGE 6. IF HIGHER PREHEA T TEMPERA TURES ARE NECESSAR Y TO OBT AIN ADEQUA TE BOOSTER OUTPUT , ADD A N ANTI-SCALD VAL VE FOR HOT W A TER SUPPLIED TO FIXTURES. ...

  • A.O. Smith DRE - page 14

    14 MANIFOLD KITS ALL DIMENSIONS IN INCHES. TWO HEA TERS Part Model Number H W D A DRE/DVE-52 9003429 66 1/4 56 3/4 27 1/4 13 1/4 DRE/DVE-80 9003429 70 1/2 60 1/4 31 1/4 9 3/4 DRE/DVE-120 9003429 73 1/4 64 1/2 35 3/4 5 1/2 Inlet and outlet size — 1 1/2 THREE HEA TERS Part Model Number H W D A DRE/DVE-52 9003430 66 1/4 91 3/4 27 1/4 13 1/4 DRE/DVE- ...

  • A.O. Smith DRE - page 15

    15 BRANCH CIRCUIT The branch circuit wire and fuse size should be established through reference to the current version of the National Electrical Code or any other locally approved source in conjunction with the heater amperage rating. Branch circuit wires should have a temperature rating no less than 75°C. For convenience, portions of the wire si ...

  • A.O. Smith DRE - page 16

    16 Full Load Current in Amperes KW Number of Element Single Phase Three Phase No. of No. of Input Elements W attage 208V 240V 277V 480V 208V 240V 480V Thermostat s Fuses 6 2000 28.8 25.0 21.7 12.5 16.7 14.4 7.2 9 3000 43.3 37.5 32.5 18.8 25.0 21.7 10.8 12 3 4000 57.7 50.0 43.3 25.0 33.3 28.9 14.4 3 6 13.5 4500 64.9 56.3 48.7 28.1 37.5 32.5 16.2 15 ...

  • A.O. Smith DRE - page 17

    17 DVE CONTROL CIRCUIT DIAGRAMS ...

  • A.O. Smith DRE - page 18

    18 POWER CIRCUIT The power circuit wiring is 12 Awg. AWM or TEW type, rated 600 volts, 105°C. Power circuit fusing consists of three 30 amp class G fuses for each contactor . See wiring diagrams. Do not substitute fuses of a different rating. DVE POWER CIRCUIT DIAGRAMS THREE ELEMENTS - SINGLE AND THREE PHASE SIX ELEMENTS - SINGLE AND THREE PHASE ...

  • A.O. Smith DRE - page 19

    19 CONVERSION TO SINGLE PHASE When the heater is shipped for connection to a three-phase electrical service, it may be connected to a single-phase electrical service of the same voltage by: 1. Disconnect blue wires and yellow wires from terminal L3. 2. Reconnect all blue wires to terminal L1 (with black wires). 3. Reconnect all yellow wires to term ...

  • A.O. Smith DRE - page 20

    20 HEA TER CIRCUITS—DRE MODELS The water heater's electrical components are pictured and identified on pa ge 2. The following describes the heater circuits and includes wiring diagrams. All heater circuits are designed for 60/50 hertz alternating current. The DRE circuit wiring is 12 A WG , AWM, or TEW type, rated 600 volts, 105°C. FUSING F ...

  • A.O. Smith DRE - page 21

    21 CONVERSION TO SINGLE PHASE When the heater is shipped for connection to a three-phase electrical service, it may be connected to a single-phase electrical service of the same voltage by: 1. Disconnect blue wires and yellow wires from terminal L3. 2. Reconnect all blue wires to terminal L1 (with black wires). 3. Reconnect all yellow wires to term ...

  • A.O. Smith DRE - page 22

    22 Operation GENERAL Never turn on power to the water heater without being certain the water heater is filled with water , and a temperature and pressure relief valve is installed in the relief valve opening. DO NOT TEST ELECTRICAL SYSTEM BEFORE HEA TER IS FILLED WITH W A TER. FOLLOW FILLING AND ST AR T -UP INSTRUCTIONS IN OPERA TION SECTION. FILLI ...

  • A.O. Smith DRE - page 23

    23 MAINTENANCE SCHEDULE Component Operation Interval Required T ank Flushing Periodically Un•Lime ® Element s Lime Scale As needed delimer & Removal element gaskets, Part Anode Inspect As needed T ank flushing should be performed in accordance with the above schedule. T ank sediment removal and element lime scale removal must be performed as ...

  • A.O. Smith DRE - page 24

    24 12. Attach element wires to connection point s from which they were removed. 13. Follow FILLING instructions to restore hot water service. • Check for water leaks around elements and proper operation when heater is filled. • Close the front panel. CHECKLIST Before calling for service, check the following points to see if the cause of trouble ...

  • A.O. Smith DRE - page 25

    25 Leakage Checkpoint s 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 TO BE A PROBLEM. Where possible, remove or lift top cover to examine threads of fittings installed into tank for evidence of leakage. Correct fitting leaks as necessary . Reli ...

  • A.O. Smith DRE - page 26

    26 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 heater shall prove upon examination by the warrantor to have leaked due to natural corros ion from potable water therein, during the first THREE years after initial installation, th ...

  • A.O. Smith DRE - page 27

    27 ...

  • A.O. Smith DRE - page 28

    28 McBee, South Carolina 29101 Phone: 1-800-527-1953 Fax: 800-433-2515 w w w .hotwater .com e-mail: p ar ts@hotwater .com ...

Manufacturer A.O. Smith Category Water Heater

Documents that we receive from a manufacturer of a A.O. Smith DRE can be divided into several groups. They are, among others:
- A.O. Smith technical drawings
- DRE manuals
- A.O. Smith product data sheets
- information booklets
- or energy labels A.O. Smith DRE
All of them are important, but the most important information from the point of view of use of the device are in the user manual A.O. Smith DRE.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals A.O. Smith DRE, service manual, brief instructions and user manuals A.O. Smith DRE. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product A.O. Smith DRE.

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A complete manual for the device A.O. Smith DRE, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use A.O. Smith DRE by users. Manuals are usually written by a technical writer, but in a language understandable to all users of A.O. Smith DRE.

A complete A.O. Smith manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual A.O. Smith DRE - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the A.O. Smith DRE, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the A.O. Smith DRE, that we can find in the current document
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4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with A.O. Smith DRE
5. FAQ - Frequently Asked Questions
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