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A.O. Smith DEN-40 User Manual

A.O. Smith DEN-40
24 pages
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Instruction Manual
PRINTED 1213 322055-002
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
COMMERCIAL ELECTRIC WATER HEATERS
Thank you for buying this energy efcient water heater.
We appreciate your condence in our products.
MODELS DEL-6/10/15/20 Series 102
DEL-30/40/50 Series 110
& DEN-30/40/52/66/80/120 Series 110
INSTALLATION - OPERATION - SERVICE
- MAINTENANCE - LIMITED WARRANTY
500 Tennessee Waltz Parkway
Ashland City, TN 37015
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A.O. Smith DEN-40 Specifications

General IconGeneral
Voltage240V
Wattage9.6 kW
Connection Size1/2" NPT
ThermostatDigital
TypeElectric Tankless
CapacityTankless
CategoryTankless Electric
Amperage40A
PhaseSingle
Temperature Range80°F - 140°F
Heating ElementCopper
Safety FeaturesOverheat protection

Summary

SAFE INSTALLATION, USE, AND SERVICE

Safety Symbols and Hazard Definitions

Explains safety alert symbols, hazard levels (DANGER, WARNING, CAUTION), and installer qualifications.

Important Definitions and Warnings

Defines "Qualified Installer" and highlights the importance of understanding safety messages.

GENERAL SAFETY INFORMATION

Precautions and Hazards

Covers critical safety precautions including hydrogen gas, electrical safety, and temperature risks.

INTRODUCTION

Preparing for Installation

Guidance on reading the manual, understanding warnings, and planning the installation process.

DIMENSIONS AND CAPACITIES DATA

APPROVALS

MODEL AND RATING

FEATURES AND COMPONENTS

Electronic Control Models Overview

Illustrates typical water heater installations for electronic control models.

LOCATING THE NEW WATER HEATER

Location Considerations and Requirements

Details factors for choosing a location, drain pans, and leak detection devices.

Clearances and Flood Warning

Specifies minimum clearances for servicing and provides a flood warning advisory.

INSTALLATION

Required Skills and General Compliance

States required installer skills and the need to comply with codes and regulations.

Installation Specifics and Hazards

Covers toxic chemicals, circulating pumps, insulation, and T&P valve warnings.

INSTALLATION (Continued)

Temperature-Pressure Relief Valve Installation

Details T&P valve requirements, proper installation, and operation.

Thermal Expansion and Closed Systems

Explains thermal expansion effects in closed systems and the need for expansion tanks.

ELECTRICAL

Branch Circuit and Wiring Sizing

Guidance on branch circuit wire sizing based on codes and amperage.

Amperage and Overcurrent Protection Calculation

Explains how to calculate heater amperage and size overcurrent protection.

WIRING DIAGRAMS

OPERATION

Initial Startup and Filling Procedures

Step-by-step guide for initial startup, filling, and checking connections.

Draining the Water Heater

Procedures for draining the water heater for shutdown or maintenance purposes.

TEMPERATURE REGULATION

Thermostat Settings and Scald Hazards

Explains thermostat adjustments, scald hazards, and safe temperature settings.

MAINTENANCE

Anode Rod Inspection and Replacement

Importance, procedure, and frequency for inspecting and replacing the anode rod.

Tank Flushing and Cleaning

Recommends periodic tank flushing and cleaning for sediment and scale removal.

TROUBLESHOOTING CHECKLIST

Identifying and Resolving Common Issues

Guides users on checking common problems like no hot water, sounds, and leaks.

Water Leakage Diagnosis

Steps to check for water leakage from drain valve, relief valve, or elements.

LEAKAGE CHECKPOINTS

WARRANTY

Limited Warranty Terms and Conditions

Details warranty coverage, conditions, exceptions, and limitations on implied warranties.

Warranty Claim Procedure and Disclaimers

Outlines how to initiate a warranty claim and lists disclaimers of responsibility.

NOTES

REPAIR PARTS LIST

Ordering Information and Contact Details

Information and contact details required when ordering repair parts.

REPAIR PARTS LIST (DEL Models)

REPAIR PARTS LIST (DEN Models)

ELEMENT AND WATTAGE CHARTS

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