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A.O. Smith Voltex - User Manual

A.O. Smith Voltex
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1
A.O. Smith – Voltex™
Hybrid Electric
Heat Pump Water Heater
Installation
Instructions and
Use & Care Guide
To obtain technical, warranty or service assistance during or after
the installation of this water heater, call toll free
1-800-527-1953
When calling for assistance, please have the following
information ready:
1. Model number
2. 7 Digit product number
3. Serial number
4. Date of installation
5. Place of Purchase
Water Heater Safety ............................................................................... 2
Installing Your Water Heater .................................................................3-9
Consumer Information ................................................................ 3
Consumer Responsibilities ......................................................... 3
Unpacking Instructions ............................................................3-4
Location Requirements ............................................................... 4
Water System Piping ................................................................5-6
Temperature & Pressure Relief Valve .......................................7-8
Electrical Requirements ...........................................................8-9
Installation Checklist .............................................................................. 10
Operating Your Water Heater ........................................................... 11-13
Before Using ............................................................................. 11
Water Temperature Regulation ................................................. 11
Adjusting the User Interface Module/ Operational Mode .......... 12
Operational Conditions ............................................................. 13
Maintenance of Your Water Heater ..................................................14-15
Temperature and Pressure Relief Valve .................................... 14
Draining and Flushing ................................................................ 14
Heating Element Replacement .............................................14-15
Cleaning the Heat Pump ........................................................... 15
Diagnostic Codes .................................................................................. 16
Troubleshooting Chart ........................................................................... 17
Repair Parts Illustration ......................................................................... 18
Notes... ..............................................................................................19-20
Table of Contents Page
320506-000
November 2010

Table of Contents

Other manuals for A.O. Smith Voltex

Preview: Installation Instructions And Use & Care Guide
Installation Instructions And Use & Care Guide22 pages

Questions and Answers

  • J
    Johnny PorterJul 31, 2025
    Why is there no hot water from my A.O. Smith Water Heater?
    • R
      Robert SolisJul 31, 2025
      Several factors could cause a lack of hot water. First, check if the water heater has power by looking at the power button. If it's not lit, check for a blown fuse or tripped breaker and restore power, then press the power button. If the power button is red, press it to turn the unit on (it should turn green). Also, verify if the unit is in Vacation mode and, if so, press the Vacation Mode button to exit. Another possible cause is an open high temperature limit switch, which may require a reset. If your hot water usage exceeds the heater's capacity in the current mode, consider changing the mode or modifying your usage patterns. Finally, a non-functioning upper temperature sensor could be the culprit, requiring professional service.
  • T
    Taylor WatersAug 5, 2025
    How to fix insufficient hot water from my A.O. Smith Water Heater?
    • B
      badamsAug 5, 2025
      Insufficient hot water can arise from several factors. Start by checking if the temperature set-point is too low and increase it if needed. A dirty air filter can also hinder performance, so clean it. If your hot water usage exceeds the heater's capacity in the current mode, consider changing to a different mode or adjusting your usage patterns. Make sure the water connections aren't reversed, ensuring the cold connection is at the bottom and the hot connection is at the top. Insulate any exposed piping to prevent heat loss. Repair any hot water leaks. If the heating element is non-functioning, professional service is needed. Lastly, sediment or scale build-up in the tank can be a factor; drain and flush the tank, and consider water conditioning to minimize future build-up.
  • J
    Julie SanchezAug 12, 2025
    Why is my A.O. Smith Voltex Water Heater's temperature & pressure relief valve dripping?
    • C
      Christina LoveAug 12, 2025
      A dripping temperature and pressure relief valve can be due to a few reasons. First, check the water supply inlet pressure; if it exceeds 80 PSIG, install a pressure reducing valve to bring it down to the recommended 50-60 PSIG. Another potential cause involves the thermal expansion. Also, the Temperature & Pressure Relief Valve may be non-functioning and needs replacing.
  • J
    Jared MannAug 17, 2025
    Why A.O. Smith Voltex Water Heater does not immediately start?
    • A
      Aaron ReeseAug 17, 2025
      When first started, the water heater takes about 8 minutes to complete a diagnostic routine.
  • K
    Kelly WellsAug 23, 2025
    What to do if my A.O. Smith Water Heater has high operation costs?
    • B
      Billy SmithAug 25, 2025
      High operating costs can stem from several issues. A primary cause could be a temperature set-point that is too high; consider decreasing it. A dirty air filter can also contribute, so ensure you clean it. If the water heater is in Electric mode, switching to Efficiency or Hybrid mode can reduce energy costs. Incorrect water connections, with cold and hot reversed, can also lead to higher costs; ensure the cold connection is at the bottom and the hot connection at the top. Heat loss through exposed pipes should be addressed by insulating them. Repair any hot water leaks at faucets or piping. Lastly, sediment or scale build-up in the tank can increase costs; drain and flush the tank, and consider water conditioning to minimize future build-up.

Summary

WATER HEATER SAFETY

Important Safety Instructions

Safety advice regarding hydrogen gas production and refrigerant.

INSTALLING YOUR WATER HEATER

Consumer Information

Details about local codes and authorities for installation.

Consumer Responsibilities

User's role in installation, operation, and maintenance.

Basic Operation Fundamentals

Explanation of heat pump water heater operation and efficiency.

Unpacking the Water Heater

Instructions for safely unpacking the water heater unit.

Location Requirements

Water System Piping

Piping Installation

Step-by-step guide for connecting water piping and fittings.

Condensate Drain Line Installation

Closed System;Thermal Expansion

Temperature and Pressure Relief Valve

Temperature;Pressure Relief Valve and Pipe Insulation

Instructions for insulating the T&P relief valve and discharge pipe.

Electrical Requirements

Connecting the Condensate Pump Overflow Shut Off Switch

Insulation Blankets

INSTALLATION CHECKLIST

Water Heater Location

Checklist items for selecting the correct water heater location.

Water System Piping

Checklist items for proper water system piping installation.

Condensate Drain Line Installation

Checklist items for condensate drain line installation.

Electrical Connections

Checklist items for correct electrical connections.

Post Installation Review

Checklist items for reviewing installation and understanding operation.

OPERATING YOUR WATER HEATER

Before Using

Initial steps before operating the water heater.

Safety Shut-off (ECO)

Explanation of the automatic safety shut-off feature.

Water Temperature Regulation

How to adjust and understand water temperature settings and scald risks.

Adjusting the User Interface Module;Operational Modes

Operating Mode Descriptions

Explanations of Hybrid, Efficiency, Electric, and Vacation modes.

Operational Conditions

Powered Anode Operation

Information on the function and maintenance of the powered anode.

Water Heater Sounds

Description of common operational sounds and noises.

Stacking

Explanation of water heater stacking and scald risk.

MAINTENANCE OF YOUR WATER HEATER

Temperature and Pressure Relief Valve

Procedure for manually operating and maintaining the T&P relief valve.

Draining and Flushing

Recommended procedure for draining and flushing the tank.

Heating Element Replacement

Steps for replacing heating elements.

Routine Preventive Maintenance

Monthly visual inspection checklist for maintenance.

Cleaning the Heat Pump

Instructions for cleaning the heat pump's air filter.

Inspection;Cleaning of the Condensate Drain Pan & Condensate Drain Lines

Procedure for inspecting and cleaning the condensate system.

DIAGNOSTIC CODES

TROUBLESHOOTING CHART

REPAIR PART ILLUSTRATION

NOTES

A.O. Smith Voltex Specifications

General IconGeneral
BrandA.O. Smith
ModelVoltex
CategoryWater Heater
LanguageEnglish

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