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A.O. Smith DEN-30 User Manual

A.O. Smith DEN-30
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-30 Specifications

General IconGeneral
ModelDEN-30
Capacity30 gallons
Voltage240V
Energy Factor0.95
Height49.5 inches
Diameter20 inches
Warranty6 years
TypeElectric
Heating ElementDual 4500 Watt

Summary

Safe Installation, Use, and Service

Important Definitions

Key terms and roles related to water heater installation and service.

General Safety Information

Precautions

Essential safety rules and warnings for operating the water heater.

Hydrogen Gas Hazard

Information on the flammability of hydrogen gas in water systems.

Electrical Safety Warnings

Critical warnings regarding electrical hazards during servicing.

Water Temperature Hazard

Dangers of excessively hot water and scald prevention.

Introduction

Preparing for Installation

Steps and considerations before beginning water heater installation.

Dimensions and Capacities Data

Approvals

Model and Rating Information

Details on product certifications, model numbers, and specifications.

Features and Components

Electronic Control Models

Identification of key parts and features for electronic control units.

Locating the New Water Heater

Location Considerations

Factors for choosing an optimal and safe installation location.

Clearances for Servicing

Required space around the heater for maintenance and part access.

Installation

Required Installer Ability

Qualifications needed for proper water heater installation and service.

General Installation Guidelines

Conformance to codes, regulations, and manufacturer instructions.

Toxic Chemical Hazard

Warnings against connecting to non-potable water systems.

Circulating Pump Guidelines

Requirements for field-installed circulating pumps.

Insulation Blanket Usage

Recommendations and cautions for using external insulation blankets.

Temperature-Pressure Relief Valve

Importance and safety of the T&P relief valve.

Closed Water Systems

Implications of closed systems and potential for pressure buildup.

Thermal Expansion

Explanation of thermal expansion and its impact on the system.

Electrical

General Electrical Requirements

Grounding, branch circuits, and voltage requirements for safe operation.

Branch Circuit Sizing

Determining appropriate wire size based on heater amperage and codes.

Amperage and Overcurrent Protection

Calculating heater amperage and selecting overcurrent protection.

Wiring Diagrams

Dual Element Heater Wiring (A-8 Circuit)

Diagrams for dual element heater wiring configurations.

Single Element Heater Wiring (C-2 Circuit)

Diagrams for single element heater wiring configurations.

Operation

General Operation Notes

Essential safety checks before powering on the water heater.

Filling the Water Heater

Procedure for filling the tank with water before operation.

Initial Start Up Procedure

Steps for the first-time operation and checking connections.

Draining the Water Heater

Instructions for safely draining the water heater for maintenance or shutdown.

Temperature Regulation

Thermostat Operation and Scald Hazard

Adjusting temperature and understanding scald risks.

Thermostat Types and Settings

Details on different thermostat models and factory settings.

Temperature Adjustment Procedure

Step-by-step guide to adjusting the water temperature.

Maintenance

Periodic Drain Valve Operation

Importance of periodically opening the drain valve to prevent sediment.

Temperature and Pressure Relief Valve Check

How to test the relief valve for proper function.

Anode Rod Inspection and Replacement

Procedure for inspecting and replacing the anode rod for corrosion control.

Troubleshooting Checklist

Common Issues and Checks

Checklist for identifying and resolving common water heater problems.

Abnormal Sounds

Understanding noises like sizzling or hissing as normal or problematic.

Water Leakage Diagnosis

Steps to identify and diagnose potential water leaks.

Malfunction Resolution

Actions to take when a malfunction cannot be identified or corrected.

Replacement Parts Information

How to identify and order necessary replacement parts.

Leakage Checkpoints Illustrated

Visual guide to common leak points on the water heater.

Warranty

Limited Warranty Terms for Tank and Parts

Details of the warranty coverage for the tank and other components.

Warranty Conditions and Exceptions

Stipulations and exclusions that affect warranty validity.

Service and Repair Expense Responsibilities

Clarification of owner's costs for service and repairs.

Claim Procedure and Contacts

Steps for initiating a warranty claim and who to contact.

Warranty Disclaimers and Legal Rights

Statements regarding express warranties and consumer legal rights.

Notes

Repair Parts List

Ordering Repair Parts

Information required and procedures for ordering replacement parts.

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