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

318257-000
February 2010