A O Smith HPTU-50N Commercial-Grade Residential Water Heaters Instruction Manual
- June 13, 2024
- A O Smith
Table of Contents
- A O Smith HPTU-50N Commercial-Grade Residential Water Heaters
- Product Information
- Other Features
- Website and Contact
- Product Usage Instructions
- INCREASED ENERGY EFFICIENCY
- PERFORMANCE
- DIMENSIONS & SHIPPING WEIGHT
- ELECTRONIC USER INTERFACE
- OTHER FEATURES
- OPERATING REQUIREMENTS
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
A O Smith HPTU-50N Commercial-Grade Residential Water Heaters
Product Information
Commercial-Grade Residential Water Heaters
The Commercial-Grade Residential Water Heaters are designed to provide increased energy efficiency and come with an electronic user interface. These water heaters offer a choice of operating modes to suit different needs. The control system memory saves service messages and the last four error messages for easy troubleshooting. With their commercial-grade quality, these water heaters are built to deliver reliable performance.
Other Features
- Backup electric elements
- Compressor that transfers heat to the water while dehumidifying and cooling the environment
- CoregardTM anode rod for routine cleaning
- Adapter and booster fan kits
- Dry fire protection to prevent damage to the heating elements
- Warranty coverage
Performance:
| Model | Series | Nominal Capacity (USG) |
|---|---|---|
| HPTU-50N | 130 | 50 (189) |
| HPTU-66N | 130 | 66 (250) |
| HPTU-80N | 130 | 80 (303) |
Dimensions & Shipping Weight:
Model| Installation Height (A in cm)| Tank Diameter (B in cm)| Shipping Weight
(lb/kg)
---|---|---|---
HPTU-50N| 63 (160)| 22 (56)| 196 (89)
HPTU-66N| 61 (155)| 27 (69)| 289 (131)
HPTU-80N| 69 (175)| 27 (69)| 307 (139)
Operating Requirements:
A condensate pump is required if the top T&P option is not available.
Technical Support:
For technical information and support, please call
888-599-2837.
Manufacturer:
A. O. Smith Enterprises Ltd.
Website and Contact
- Website: www.hotwater.com
- Toll-free Canada: 800-265-8520
- November 2022
Product Usage Instructions
Installation:
- Select an installation location that meets the required installation height and tank diameter specified in the product manual.
- If the top T&P option is not available, ensure a condensate pump is installed.
- Connect the water heater to a 30 amp breaker for proper electrical supply.
Operating Modes:
- Select the desired operating mode based on your needs.
- Refer to the user interface for instructions on how to switch between operating modes.
Routine Cleaning:
- Regularly clean the CoregardTM anode rod as per the maintenance instructions provided in the user manual.
Dry Fire Protection:
- Ensure the tank is full of water during startup to prevent dry firing of the heating elements.
Warranty:
- For complete warranty information, refer to the written warranty or contact A. O. Smith Enterprises Ltd.
ProLine® XE HEAT PUMP
The ProLine® XE heat pump water heaters from A. O. Smith are a cost effective energyefficient option available for consumers who want to save money on their electric utility bills.
HOW DO THEY WORK?
- Absorbs ambient heat from the surrounding air to heat water using a compressor and environmentally-friendly R134a refrigerant
- Self-contained heat pump unit is integrated into the top of the tank
- Multiple operating modes to maximize efficiency and performance
INCREASED ENERGY EFFICIENCY
- Improved efficiency design to ensure available hot water at the lowest possible cost
- Up to a 3.45 Uniform Energy Factor (UEF) conserves energy and exceeds ENERGY STAR® qualifications
CHOICE OF OPERATING MODES
- Select from Efficiency, Hybrid, or Electric modes to match heating requirements to environmental conditions
- Hybrid mode automatically adjusts between compressor and element, depending upon heat requirements
- Vacation mode reduces operating costs and provides freeze protection during extended absence
BACKUP ELECTRIC ELEMENTS
- Long-lasting backup heating elements help heat water according to environmental conditions, demand, and the chosen operating mode
COREGARD™ ANODE ROD
- Anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection far longer than standard anode rods
- 66 and 80 gallon models have dual anodes for added protection
DRY FIRE PROTECTION
- Control system checks to ensure the tank is full of water during start up to prevent dry firing the heating elements
ELECTRONIC USER INTERFACE
- User-friendly electronic interface allows easy control of temperature setting, operating mode, and communicates diagnostics
- Easy to read temperature display (see back) shows temperature in °F or °C
- Advanced diagnostics convey error messages for service purposes and the last four error messages are saved in the control system memory
COMMERCIAL-GRADE
- ProLine® XE Heat Pump are residential water heaters with commerical grade quality
OTHER FEATURES
- Ideal for basement installations; the compressor transfers heat to the water while dehumidifying and cooling the ambient air
- Washable air filter is easily removed for routine cleaning
OPTIONAL DUCTING
- Permits installation in confined spaces
- Duct up to 50 feet with air duct adapter kit
- Duct up to 100 feet with air duct adapter and booster fan kits
WARRANTY
- 10 year limited tank and parts warranty
For complete information, consult written warranty or A. O. Smith
PERFORMANCE
MODEL
|
SERIES
|
NOMINAL CAPACITY USG (L)
|
INPUT
|
UNIFORM ENERGY FACTOR HYBRID MODE
|
FIRST HOUR RATING HYBRID MODE
GPH (LPH)
---|---|---|---|---|---
WATTS
UPPER/LOWER
| VOLTS
HPTU-50N| 130| 50 (189)| 4500/4500| 208/240| 3.45| 66 (249)
HPTU-66N| 130| 66 (250)| 4500/4500| 208/240| 3.45| 79 (299)
HPTU-80N| 130| 80 (303)| 4500/4500| 208/240| 3.45| 86 (325)
Requires 30 amp breaker.
Top T&P option not available.
DIMENSIONS & SHIPPING WEIGHT
MODEL
| INSTALLATION HEIGHT| TANK DIAMETER| HEIGHT TO UPPER SIDE CONNECTION| HEIGHT TO LOWER SIDE CONNECTION| HEIGHT TO DRAIN VALVE| HEIGHT TO T &P| ****
SHIPPING WEIGHT
---|---|---|---|---|---|---|---
A
IN (CM)
| B
IN (CM)
| C
IN (CM)
| D
IN (CM)
| D
IN (CM)
| E
IN (CM)
| ****
LB (KG)
HPTU-50N| 63 (160)| 22 (56)| 40 5/8 (103)| 3 ¾ (10)| 3 ¾ (10)| 40 ½ (103)| 196
(89)
HPTU-66N| 61 (155)| 27 (69)| 38 (97)| 4 (10)| 4 (10)| 38 (97)| 289 (131)
HPTU-80N| 69 (175)| 27 (69)| 46 (117)| 4 (10)| 4 (10)| 46 (117)| 307 (139)
ELECTRONIC USER INTERFACE
- User friendly, easy to read display
- LEDs clearly indicate the current operating mode
- Easily select operating mode:
- Efficiency
- Hybrid
- Electric
- Vacation
- Display communicates current status, mode and set point, and displays error messages when applicable
EFFICIENCY MODE
- Utilizes the heat pump for all water heating
HYBRID MODE
- Automatically reverts to heating element if ambient air or water temperatures are outside optimal operating range for heat pump
- Utilizes the heat pump or heating element, depending on demand
ELECTRIC MODE
- Standard electric water heater operation
VACATION MODE
- One-touch operation maintains tank temperature of 60°F (15.6°C) during vacation or extended absence to reduce operating costs and provide freeze protection
- Programmable up to 99 days
OPTIONAL ACCESSORIES
- 100234320 Inlet and Outlet Air Duct Kit
- 100131328 Booster Fan Kit
OTHER FEATURES
- Environmentally friendly non-CFC foam insulation
- Durable, enhanced-flow tamper-resistant brass drain valve
- 51 dBA decibel level during operation
- CSA-certified and ASME-rated temperature & pressure relief valve
OPERATING REQUIREMENTS
- Requires provision for condensate draining; if a suitable drain is not available, a condensate pump is required
- 208/240 VAC 60Hz single phase 30 amp power supply
For Technical Information call 888-599-2837. A. O. Smith Enterprises Ltd. reserves the right to make product changes or improvements without prior notice.
www.hotwater.com
800-265-8520 Toll-free Canada