A.O. Smith DSE-5 THRU DSE-120 - Manuals

A.O. Smith DSE-5 THRU DSE-120 – Manual in PDF format online.

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Manual

Manual A.O. Smith DSE-5 THRU DSE-120

Summary

Page 2 - RECOVERY CAPACITY; DIMENSIONS

2 STANDARD BTU/ 30° 40° 50° 60° 70° 80° 90° 100° 110° 120° 130° 140° KW INPUT HOUR 3 10,239 41 31 24 20 17 15 13 12 11 10 10 9 6 20,478 82 62 49 41 35 31 27 25 22 21 19 18 9 30,717 123 92 74 62 53 46 41 37 34 31 28 26 12 40,956 164 123 98 82 70 61 55 49 45 41 38 35 15 51,195 205 154 123 102 88 77 68...

Page 3 - CONTENTS; APPROVALS; ASME; FOREWORD

3 CONTENTS PAGE ROUGH-IN-DIMENSIONS ...................................... 2 RECOVERY CAPACITY ....................................... 2 FOREWORD ......................................................... 3 APPROVALS ....................................................... 3 MODEL & RATING PLATE ....

Page 4 - GETTING TO KNOW YOUR WATER HEATER

4 GETTING TO KNOW YOUR WATER HEATER Below is an illustration of the waterheater with its features called out. Thetext of this manual will refer to the itemsshown. FIGURE 1

Page 5 - INSTALLATION

5 GENERAL SAFETY INFORMATION INSULATION BLANKETS Insulation blankets available to the general public for externaluse on electric water heaters are not approved for use on yourA.O. Smith water heater. The purpose of an insulation blanketis to reduce the standby heat loss encountered with storage tank...

Page 6 - RELIEF DEVICES; TEMPERATURE LIMITING CONTROL; CAUTION

6 RELIEF DEVICES An unplugged 3/4” relief valve opening is provided for installingtemperature and pressure relief valve. CAUTION: TO REDUCE THE RISK OF EXCESSIVE PRESSURESAND TEMPERATURE IN THIS WATER HEATER INSTALLTEMPERATURE AND PRESSURE PROTECTIVE EQUIPMENTREQUIRED BY LOCAL CODES but not less tha...

Page 7 - PIPING DIAGRAM; ONE OR TWO TEMPERATURE - ONE HEATER; DANGER

7 PIPING DIAGRAM ONE OR TWO TEMPERATURE - ONE HEATER ONE OR TWO TEMPERATURE - TWO HEATER DANGER : T E M P E R AT U R E S E T T I N G S H O U L D N O TE X C E E D S A F E U S E T E M P E R AT U R E ATFIXTURES. SEE WATER TEMPERATURECONTROL WARNING ON PAGES 17 & 18. IFHIGHER PREHEAT TEMPERATURES AR...

Page 13 - ELECTRICAL; GENERAL; BRANCH CIRCUIT

13 ELECTRICAL GENERAL The installation must conform to these instructions, the localcode authority having jurisdiction, and the requirements of thepower company. In the absence of code requirements followthe latest version of NFPA-70, The National Electrical Codewhich may be ordered from: American N...

Page 16 - -1 PHASE CONVERSIONS; -1 PHASE CONTACTOR JUMPER CONFIGURATION

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 tothe phase of the supply voltage. See the diagram below. For single-phase connection, jumpers A-C and B-D must be added. Forthree-phase connection,...

Page 18 - OPERATION

18 OPERATION GENERAL Never operate the heating elements without being certain thewater heater is filled with water, and a temperature and pressurerelief valve is installed in the relief valve opening. FILLING 1. Turn off the electrical disconnect switch. 2. Close the water heater drain valve by turn...

Page 19 - MAINTENANCE; DRAINING; FLUSHING

19 MAINTENANCE Always close the front access door after making a temperatureadjustment. Turn on electricity. DRAINING The water heater must be drained if it is to be shut down andexposed to freezing temperatures. Maintenance and serviceprocedures may also require draining the heater. 1. Turn off the...

Page 20 - CHECKLIST

20 5. Remove the bolts from each element. 6. Remove the elements from the openings. • Use a twisting, pulling action to remove elementsscaled beyond size of the tank openings. • Brush loose scale from elements. 7. Lime scale removal. • Place limed ends of heating elements into UN•LIMEdelimer and all...

Page 21 - REPLACEMENT PARTS

21 W h e n s u c h a c o n d i t i o n i s e n c o u n t e r e d , l o c a l c o d e s o rinspection agency should be consulted to determine whichsystem is acceptable in your area. These may consist of: • Installation of a second relief valve set to lowerthan the primary safety relief valve. • An ex...

Page 22 - LEAKAGE CHECKPOINTS

22 LEAKAGE CHECKPOINTS INSTRUCTIONS: USE THIS ILLUSTRATION AS A GUIDE WHEN CHECKING FOR SOURCES OF WATER LEAKAGE. YOU OR YOUR DEALER MAY BE ABLE TO CORRECT WHAT APPEARS TO BE A PROBLEM. Water on side of the tank may be condensation dueto the panel or insulation not being in place. Relief valve opera...

Page 23 - MODEL DSE LIMITED WARRANTY

23 MODEL DSE LIMITED WARRANTY A.O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater: 1. THE TANK If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potablewa...