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Heat Pump Water Heater HPI-40/50C1.0AT HPI-40/50C1.0AE User Guide...
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About A. O. Smith In 1936, A. O. Smith developed and patented the process of glass-lined water heaters, pioneering the modern standard in water heater design. Over the past years, A. O. Smith has gained respect and support of homeowners, contractors, architects, and specifying engineers in over 60 countries by providing innova- tive, energy-saving products designed for years of trouble-free service.
CONTENTS User Guide................................1 Physical Characteristics ............................2 Specifications ...............................2 Safety Features ..............................3 Compressor overheating discharge protection....................3 Abnormal operation protection of the relay....................... 3 Abnormal operation protection of electronic expansion valve ................3 High and low voltage protection........................3 Refrigerant leakage protection...........................
User Guide Please read this instruction carefully before installation and operation of the water heater and keep this instruction well for further reference. Only professional installers acknowledged by A.O.SMITH are permitted to install the heat pump water heater. If the water heater is installed with self-prepared installation materials or by un-authorized personnel, A.O.SMITH will not be responsible for all losses incurred thereby, including but not limited to pipeline leakage, fall or improper installation that may affect normal operation and performance of water heater.
Relief valve Water inlet Base wad Drain valve (20 mm in height) Table 1 Outline Dimensions Model HPI-40C1.0AT/AE HPI-50C1.0AT/AE Total Height L (mm) 1610 1800 Height between Undersurface and Water Outlet L2 (mm) 1243 1056 Tank Diameter D (mm) Specifications...
Safety Feature Compressor overheating discharge protection The system will promptly stop the operation of the compressor to ensure safety in case the compressor overheats due to the fault of the water heater. Abnormal operation protection of the relay The system will shut down all loads to prevent overvoltage, fire and other incident in case the water temperature continues rising after the stop of pump due to the fault of the relay.
Product Features Energy-saving Heating A new generation water heater, heating residential water by air-source based on the Inverse Cano Principle. MAX function means more hot water output, therefore, better bath SETTING experience. HYBRIDTURBO AES (adaptive energy-saving system) EFFICIENCY PUMP By recording and learning user’s habit of water usage, patented AES PROGRAM INSTANT feature adopts heating cycles automatically, which will facilitate water...
Installation Instructions CAUTION: 2 or more staffs are needed to move or install the heat pump water heater due to the heavy weight. The water heater can be suitable for outdoor installation. In this situation, firm fixed measures for the water heater are required.
Condensate Water Pipe Connection Ensure the condensate water pipe, connected with condensate water outlet, is unobstructed and toward floor drain without bended. (Figure 4) Control box connection When installing the control box on the wall, if the threading groove or wire clamper is installed on the surface, please put the control wire directly into the Water pipe nipple threading groove or wire clamper and then set the control box on the fixed...
Operation Instructions NOTICE: Please make sure the water has been fully filled into the tank and power cord is well connected. Then make sure the water heater stand still for at least 30 minutes before powering up. Heating Indicator Hot Water Amount Display Electronic Controller Operation 1.
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Clock setting Long press the key“ ” to enter clock setting state PROGRA under non-timing state, the hour digit will flash; press the key “ ” or “ ”to set the hour with a range of “0-23”, then press the key “ ”, the minute digit PROGRA will flash;...
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NOTICE: “TIMER 1” default timer interval: 21:00-08:00; “TIMER 2” default timer interval: 08:00-13:00; Neither TIMER 1 nor TIMER 2 could work simultaneously with AES, that means once TIMER 1 or TIMER 2 turns on, AES will turn off automatically. 4.AES Press“...
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6. Pump circulation (Figure 15) Press the key “ ”, and then the character “Pump” will be lighted on and the pump installed in the inlet PUMP and outlet pipes of the water heater will start the circulation immediately. Timing setting of circulation pump ”...
Maintenance Instructions Only authorized service staff is permitted for maintenance service. Improper maintenance DECLARATION: may have risk of serious injury or property damage. WARNING: Ensure heater is disconnected from power source before maintenance to avoid electric shock. CAUTION: User may do some easy repair works referring to the trouble shooting chart, before contact local authorized dealer.
Troubleshooting Fault phenomenon Possible reasons Solution No display Water heater power off Power on water heater No hot water No power available in electric socket Check electric socket Failure in control circuit or internal wiring Contact local authorized dealer. No display ECO error Contact local authorized dealer Too high water...
Notice Before installation, check and confirm if water heater power, electricity meter and wiring match up with each other. The heat pump water heater should be grounded reliably. It is prohibited to connect the earth wire to neutral wire or tap water pipe. Water of 50℃...
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A.O.SMITH WATER HEATER CO., LTD A.O.Smith reserves the right to make product changes or improvements at any time without notice. 500444-022 Rev. 00...
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