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A.O. Smith X3 - 6.2 GPM at 60° F Rise - 0.93 UEF - Propane Tankless Water Heater - Indoor
Model: ATI-540HX3-PItem Number: 123211
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Specification Highlights
Condition
New NewThis product is new and has never been used. It's in its original packaging, which has not been opened.
Weight
59 Pounds 59 PoundsTotal weight of the product and any included accessory/components. This total is not the shipping weight, as it does not include packing material, which may increase the overall shipping weight of this product.
Product Category
Water Heater - Tankless
UPC
671657270155
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Maximum Flow Rate
Fuel Type
Fuel TypeTo create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Installation Location
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Recommended Accessories
Required AccessoriesAdd All Required
Installation Accessories
Features
Features
Overview for A.O. Smith ATI-540HX3-P
A.O. Smith continues to lead the way in residential and commercial water heating with close to 70 years of innovative hot water solutions. The ATI-540HX3-P condensing gas tankless water heater features X3 Scale Prevention Technology to last three times longer than other tankless models without X3 Technology. Complies with Ultra-Low NOx regulations and utilizes commercial-grade copper alloy for the heat exchanger tubing and are approved to work with an external recirculation pump and cross-over valve. Making this one of the most efficient heaters on the market.
X3 Scale Prevention Technology
With the patent pending technology, no annual descaling is required. With no scale buildup means the heater maintains like-new performance longer.
Heavy Duty Heat Exchanger
The primary heat exchanger is built out of copper, offering better heat transfer than stainless steel and designed to be more resilient against corrosion. A.O. Smith water heaters are built to last and save you money in the process.
Multiple Safety Features
A.O. Smith water heaters come with a long list of safety features standard. These include built-in freeze protection, overheat cutoff fuse, exhaust & water temperature safety control and an Air-Fuel Ratio (AFR) Sensor.
Recirc Capable
Tankless water heaters with X3 Technology are approved to work with an external recirculation pump and cross over valve.
Ultra Low-NOx Emissions
This A.O. Smith tankless water heater is designed to qualify for the most stringent Low-NOx standards. These standards coincide with SCAQMD rules and other air quality management districts.
Product Includes
Installation manual and owner's guide
Bird screen
X3 cartridge
Specifications
Specifications
Overview
Product Category
Water Heater - Tankless
UPC
671657270155
General Information
Type
Tankless Water Heater
Product Line
ProLine XE
Product Category
Water Heater - Tankless
Medium MediumMedium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Heat Exchanger Material
Copper/Stainless
Fuel Type Fuel TypeTo create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Liquid Propane
Combustion Type Combustion TypeCondensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Condensing
Vent Type Vent TypeProducts that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Direct Vent
Storage Type
Tankless
Mount Type
Wall
Installation Location
Indoor
Maximum Altitude
10100 Feet
Includes Pump
No
Gas Conversion Kit
Not Available
Performance
Maximum Input Capacity Maximum Input CapacityThe Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
199000 BTU
Minimum Input Capacity
13000 BTU
Flow Rate at 40F Temperature Rise Flow Rate at 40F Temperature RiseFlow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
9.5 GPM
Flow Rate at 50F Temperature Rise Flow Rate at 50F Temperature RiseFlow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
7.5 GPM
Flow Rate at 60F Temperature Rise Flow Rate at 60F Temperature RiseFlow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
6.2 GPM
Flow Rate at 70F Temperature Rise Flow Rate at 70F Temperature RiseFlow rate measures how much hot water your heater can deliver. Click Learn More to determine the appropriate temperature rise to use based on your location.
5.2 GPM
Uniform Energy Factor Uniform Energy FactorUniform Energy Factor (UEF) is a measurement of water heater energy efficiency. The higher the energy factor, the more efficient the water heater.
0.93
Flow Rate at 77F Temperature Rise
4.8 GPM
Ultra Low NOx Emissions Ultra Low NOx EmissionsNOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Ultra Low NOx appliances emit less than 10-14 ng/J (nanogram per Joule) of NOx.
Yes
Electrical Data
Voltage
120 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/4 Inch
Cold Water Inlet
3/4 Inch
Hot Water Outlet
3/4 Inch
Product Height
23 5/8 Inches
Product Width
17 3/4 Inches
Product Depth
11 1/4 Inches
Product Weight
59 Pounds
Shipping Weight
73 Pounds
Certifications
Energy Star Listed
Yes
CSA Listed
Yes
AHRI Certified
Yes
ANSI Certified
Yes
UPC Listed
No
AHRI Reference Number
207209490
Warranty Information
Parts Warranty Parts WarrantyA warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
15 Years
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Product Q&A
Product Q&A
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A.O. Smith X3 - 6.2 GPM at 60° F Rise - 0.93 UEF - Propane Tankless Water Heater - Indoor