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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
Table of Contents Page
Water Heater Safety ..............
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WATER HEATER SAFETY Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.” These words mean: You can be killed or seriously injured if you don’t immediate
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INSTALLING YOUR WATER HEATER the water while the electric elements only function during Consumer Information high demand periods. (See “Adjusting the User Interface This water heater should be installed in accordance with Module/ Operational Mode” section). The more often the local code authority having jurisdiction, the power the unit operates using the heat pump, rather than the company or electric utility, and this installation manual. elements, the more effi cient the unit will be. In
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• The water heater must NOT be placed on its side. It IMPORTANT: The water heater should be located in an should be transported and stored in an upright position. area where leakage of the tank, connections, condensate • Remove exterior packaging and place installation lines or condensate will not result in damage to the area components aside. adjacent to the water heater or to lower floors of the • Inspect all parts for damage prior to installation and structure. Due to the normal corros
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3. Some local codes may require, and the manufacturer Water System Piping of this water heater recommends, installing a mixing Piping, fi ttings, and valves should be installed according to valve or an anti-scald device in the domestic hot water the installation drawing (Figure 4). If the indoor installation line as shown in Figure 4. These valves reduce the area is subject to freezing temperatures, the water piping point-of-use temperature of the hot water by mixing must be properly insu
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Please note the following: Closed System/Thermal Expansion • The system should be installed only with piping that is suitable for potable (drinkable) water such as copper, WARNING CPVC, or polybutylene. This water heater must not be installed using iron piping or PVC water piping. • Use only pumps, valves, or fittings that are compatible with potable water. • Use only full flow ball or gate valves. The use of valves that may cause excessive restriction to water flow is not recommended.
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To reduce the risk of excessive pressures and temperatures Temperature and Pressure in this water heater, install temperature and pressure relief protective equipment required by local codes, but no less Relief Valve than a combination temperature and pressure relief valve certifi ed by a nationally recognized testing laboratory that WARNING maintains periodic inspection of the production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic Shutoff
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If you lack the necessary skills required to properly install the Figure 6 electrical wiring to this water heater, do not proceed but have a T&P Relief Valve Insulation qualifi ed electrician perform the installation. When making the electrical connections, always make sure: T&P Relief Valve Insulation • The electrical service provides 240 VAC to the water heater for proper operation. DO NOT use 208 VAC. • Wire sizes and connections comply with all applicable Manual Relief Lever codes or
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5. Connect these two wires to the two wires on the water Figure 8A heater using wire nuts or other connectors. Junction Box 6. Connect the free ends of the two wires to the shut off Green switch on the condensate pump in accordance with the Ground Wire manufacturers recommendations. 7. Turn on electrical power to the water heater. Ground 8. Press the power button to turn the water heater on and Wire select the desired operational mode. After about 8 Black Wire minutes, the heat pump will
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INSTALLATION CHECKLIST Condensate Drain Line Installation Water Heater Location □ Must be located with access to an adequate drain or □ Centrally located with the water piping system. condensate pump. □ The fl ooring beneath the water heater must be able to □ Condensate drain lines installed and piped to an support the weight of the water heater when fi lled with adequate drain or condensate pump (See Figure 4). water (967 lbs. full). □ Located indoors (such as a basement or garage) Electrica
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OPERATING YOUR WATER HEATER Before Using Water Temperature Regulation 1. Make sure the water heater has been properly WARNING installed. See “Installing Your Water Heater” section. 2. Make sure the air filter is correctly seated, as it may shift during shipping or installation. See “Repair Parts Illustration” section. 3. Completely fill the tank with water (See “Water Piping” section). 4. After the water heater tank is completely filled with water, connect electrical power to the water
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Adjusting the User Interface Module/Operational Modes Water Temperature Adjustment Other Controls The water temperature can be adjusted from 95°F to 150°F. Lock - Holding this button for more than 3 Use the Up and Down Buttons on the front seconds switches the lock mode on or off. When panel to set the desired temperature. the User Interface Module is locked a symbol and “Lock” text will be visible on the display (see IMPORTANT: Before attempting to adjust the thermostat, Figure 10).
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Water Heater Sounds Operational Conditions During the normal operation of the water heater, sounds or Powered Anode Operation noises may be heard. These noises are common and may result from the following: To shelter the glass-lined water tank from corrosion through electrolysis, this water heater is equipped with a 1. Normal expansion and contraction of metal parts non-sacrificial powered anode which should not need to be during periods of heat-up and cool-down. replaced under normal op
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MAINTENANCE OF YOUR WATER HEATER 1. Place the water heater in Standby Mode by pressing Temperature and Pressure the power button on the user interface module. 2. Turn off the power to the water heater at the circuit Relief Valve breaker/fuse box. 3. Open a nearby hot water faucet until the water is no WARNING longer hot. 4. Close the cold water inlet valve. 5. Connect a hose to the drain valve and terminate it to an adequate drain or external to the building. 6. Open the water heater drain v
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Routine Preventive Maintenance Figure 12: At least monthly, a visual inspection should be made of the following: Wires • Air Filter (Remove and inspect, clean if needed, and reinstall). Element • Condensate drain pan and condensate lines. • The lower metal drain pan for standing water which may indicate a clogged condensate drain pan, condensate lines, or plumbing leak. • Leaking or damaged water piping. Screws • Presence of corrosive materials in the installation area. • Presence of combust
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DIAGNOSTIC CODES DISPLAY SHOWS INDICATES CORRECTIVE ACTION UPPER ELEMENT 1. Upper element is not functioning 1. Turn off power at the circuit breaker/fuse box and check for a loose connection at the CONNECT element. For access directions see “Heating FAULT Element Replacement” section. If error persists proceed to the next step. 2. Replace non-functioning element. See “Heating Element Replacement” section. LOWER ELEMENT 1. Lower element is not functioning 1. Turn off power at the circuit
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TROUBLESHOOTING CHART PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION NO HOT WATER 1. Hot water usage pattern exceeds the 1. Change to different mode or modify usage capability of the water heater in patterns current mode 2. No power to the water heater 2. Check for blown fuse or tripped breaker. Restore power to unit then press power button. 3. Unit in standby 3. Press the power button to turn the unit on 4. Unit in Vacation mode 4. Select mode other than Vacation 5. High temperature limit switc
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REPAIR PART ILLUSTRATION REPAIR PARTS LIST 11 ITEM 10 PARTS DESCRIPTION NO. 1 Upper Access Cover 2 Lower Access Cover 3 Upper Element (4500 Watts) 12 4 Lower Element (2000 Watts) 9 5 Energy Cut-Off (ECO) Switch 6 Temperature & Pressure Relief Valve (T&P) 8 17 7 Dip Tube (at hot water outlet) 8 Powered Anode Rod 9 User Interface Module 13 18 10 Air Filter 11 Air Inlet Side Panel 12 Air Outlet Side Panel 5 7 16 13 Fan Assembly 6 1 19 14 Drain Valve 15 15 Protective Plastic Cover 3 16 ECO Cover 17
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NOTES 19
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Copyright © 2010 A.O. Smith Corporation. All rights reserved. 20
