Table Of Contents; Foreword; Conversion Materials - A.O. Smith DRE 52 Instructions Manual

FOREWORD

The purpose of this manual is to explain how to change the voltage and wattage of your commercial electric water heater
by changing the elements. This manual is not intended to explain the rebuilding of commercial electric water heaters
in the field.
Addition of heating elements or subtraction of heating elements in the field is not approved by Underwriters Laboratories,
Inc., and therefore, is not allowed and should not be attempted.
Please note the limitation that "both the heater required and the heater to be converted must be found on the same
page" (in this manual) must be followed. Before attempting any conversion read the detailed instructions contained on
pages 8, 9, 10 and 11.
Be sure to disconnect appliance from electrical supply before working on or near the electrical system of the heater.
Never touch electrical components with wet hands or when standing in water.
CONVERSION OF ANY WATER HEATER LISTED IN THIS MANUAL REQUIRES ABILITY EQUIVALENT

TABLE OF CONTENTS

Foreword ...............................................................
Conversion Materials .............................................
Conversion Guidelines .......................................
Conversion Instructions
Introduction ..........................................................
Heater Preparation ..............................................

CONVERSION MATERIALS

1. Screw Plug Element Remover: Part no. 9000429015 or 1-1/2" deep well socket and ratchet.
2. Screwdrivers: Two required, one #2 phillips and one slotted screwdriver.
3. Conversion kit: Includes conversion instructions, replacement electrical elements, conversion kit label, and caution
label.
4. Thread sealer: When replacing screw-in type elements, be sure to use Dow Corning
on threads.
REQUIRED ABILITY
TO THAT OF A LICENSED ELECTRICAL TRADESMAN.
Page
2
2
3
4
4
SAFETY
KW Conversion (Element Replacement) .............
Voltage Conversion .............................................
Phase Conversion ...............................................
Caution ................................................................
Final Assembly ....................................................
Check List ............................................................
Miscellaneous Information ...................................
2
silicone sealant (bathtub sealer)
®
Page
4
4-5
5-6
6
6-7
7
7-8