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Installa on Instruc ons and
Use & Care Guide
Heat Pump Water Heater
DO NOT RETURN THIS UNIT TO THE STORE
Read this manual and the labels on the water heater before you install,
operate, or service it. If you have diffi culty following the direc ons, or
aren't sure you can safely and properly do any of this work yourself:
• Call our Technical Assistance Hotline at 1-888-479-8324 . We can help you with
installation, operations, troubleshooting, or maintenance. Before you call, write
down the model and serial number from the water heater's data plate.
Incorrect installa on, opera on, or service can damage the water heater, your house
and other property, and present risks including fi re, scalding, electric shock, and
explosion, causing serious injury or death.
LOW LEAD
CONTENT
Table of Contents
IMPORTANT SAFETY INFORMATION ................................. 3
GETTING STARTED ............................................................ 6
INSTALLATION ................................................................... 7
DIAGNOSTIC CODES ........................................................ 20
TROUBLESHOOTING CHART ........................................... 22
MAINTENANCE ............................................................... 28
REPAIR PARTS ILLUSTRATION .......................................... 33
Keep this manual in the pocket on heater for future reference whenever maintenance, adjustment or service is required.
Hybrid Electric
Retain your original receipt as proof of purchase.
Page
November 2015
100269085
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Summarization of Contents
IMPORTANT SAFETY INFORMATION
Safety Alert Symbol
Explains the safety alert symbol and its purpose in the manual.
Danger, Warning, Caution, Notice Definitions
Defines hazard levels (Danger, Warning, Caution) and notice for safe use.
Risks During Installation and Maintenance
Details electrical shock and lifting risks during installation and maintenance.
Risks During Operation
Covers scalding risks from hot water and temperature-time burn data.
Water Contamination Risk
Warns against using chemicals that contaminate potable water supply.
Fire Risk
Outlines precautions to reduce the risk of fire.
Explosion Risk
Explains explosion risks and T&P relief valve importance.
Fire and Explosion Risk if Hot Water is Not Used for Two Weeks or More
Warns about hydrogen gas buildup and precautions.
GETTING STARTED
Review Instructions and Codes
Emphasizes reviewing manual, local codes, and NEC/NPC compliance.
Tools and Supplies
Lists necessary tools, connectors, Teflon tape, and testers for installation.
Recommended Accessories
Lists optional but recommended accessories like drain pan, leak detection, and mixing valves.
INSTALLATION
Verify Home Equipment and Codes
Check plumbing system, water pressure, and install necessary devices for code compliance.
Water Pressure and Thermal Expansion
Recommends checking water pressure and installing a thermal expansion tank.
Water Pipe and Tank Leaks
Advises on preventing leaks and installing a drain pan for protection.
Water Temperature Regulation
Explains the need for Thermostatic Mixing Valves to prevent scalds.
Verify Location Appropriateness
Details requirements for the installation location, including indoor, level, and freeze-free conditions.
Installation Location Requirements
Covers space, floor support, earthquake straps, damage risks, closets, clearances, and ambient air temp.
Removing the Old Water Heater
Step-by-step guide on safely disconnecting and removing the old unit.
Installing the New Water Heater
Instructions for placing the new unit, drain pan, and checking clearances.
Connecting Condensate Pump
Details wiring the condensate pump optional overflow shut-off switch.
Install Condensate Drain Lines
Guides on connecting primary and secondary condensate drains and ensuring proper slope.
Connect T&P Relief Valve/Pipe
Instructions for installing the Temperature & Pressure relief valve and discharge pipe.
Install Shutoff and Mixing Valves
Explains the installation of manual shutoff and thermostatic mixing valves.
Connect Water Supply
Guides on connecting cold water supply using NPT fittings and unions.
Copper Pipe Installation
Specific instructions for connecting copper pipes, including soldering and compression fittings.
Verify Connections and Fill Tank
Steps to remove aerator, turn on cold water, and fill the tank completely.
Make Electrical Connections
Detailed instructions for safely making electrical connections, including wire checks.
OPERATION
Start-up and Operation
Steps to turn on power, set operating mode, and system diagnostics.
Adjusting the Temperature
How to adjust the water temperature setting using the UIM.
Water Temperature Adjustment
Details adjusting temperature from 95°F to 140°F using UIM buttons.
Operating Mode Descriptions
Explains different operating modes like Efficiency, Hybrid, and Electric.
Efficiency Mode
Describes the most efficient mode using only the heat pump for heating.
Hybrid Mode
Recommended mode for efficiency and reduced recovery time.
Electric Mode
Functions as a conventional electric unit for high demand periods.
Vacation Mode
For minimizing energy consumption and preventing freezing during long periods of non-use.
Other Controls
Covers °F/°C switch, Power Saver, and defrost/HPO indications.
DIAGNOSTIC CODES
System Diagnostic Codes
Lists common display codes and their indications/corrective actions.
Heat Pump and Sensor Codes
Details codes related to heating elements, sensors, and air filter.
Voltage and Pump Failure Codes
Covers codes for low voltage, discharge temperature, and condensate pump failure.
TROUBLESHOOTING
Troubleshooting Chart
Provides a chart for common problems, causes, and corrective actions.
Troubleshooting Chart (cont.)
Continues the chart for common problems, causes, and corrective actions.
No Hot Water
Diagnoses and resolves issues causing no hot water, checking power and elements.
T&P Relief Valve Drips
Addresses dripping T&P relief valves, often due to high pressure or thermal expansion.
Water Odour
Explains causes of water odor, like bacteria, and anode rod replacement.
Water Heater Sounds
Discusses common operational sounds like expansion, sediment, and compressor noise.
Temperature Too High
Guides on diagnosing and fixing excessively hot water issues.
Low Water Pressure
Guides on diagnosing and fixing low water pressure issues.
Insufficient Hot Water or Slow Hot Water Recovery
Covers causes of insufficient hot water or slow recovery, like UIM settings or faulty valves.
Undersized Water Heater
Discusses issues when the water heater is too small for needs and potential solutions.
Reversed Connections or Melted J-tube
Addresses incorrect plumbing connections or melted J-tube issues.
Plumbing Leak
Explains how small leaks can affect hot water supply and how to repair them.
Lower Heating Element Not Working
Guides on diagnosing and replacing a non-functional lower heating element.
MAINTENANCE
Routine Maintenance
Emphasizes routine tasks for heater longevity and performance.
Draining and Flushing the Water Heater
Step-by-step process to drain, flush, and remove sediment from the tank.
Anode Rod
Explains the anode rod's function, inspection, and replacement.
Replacing the Heating Element
Detailed instructions and tools needed for replacing a heating element safely.
Replacing the Heating Element (cont.)
Continues steps for replacing heating elements, including leak checks.
Replacing the ECO
Guides on how to safely replace the Energy Cut-Off (ECO) switch.
Replacing the ECO (cont.)
Continues steps for replacing the ECO and securing covers.
T&P Relief Valve Maintenance
Instructions for operating and inspecting the T&P Relief Valve annually and every five years.
Air Filter Maintenance
How to clean or replace the air filter based on UIM code "SF".
Condensate Drain Maintenance
Steps to clean the condensate drain pan and lines to prevent overflow.
REPAIR PARTS ILLUSTRATION
Repair Parts List
Lists numbered parts with descriptions for ordering replacements.
Ordering Repair Parts
Information on how to order parts, including website and phone number.
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