The 540 Series is well suited for residential use. Utilizing commercial-grade copper alloy for the heat exchanger tubing, the 540 Series is also suitable for heavier residential usages such as domestic recirculation systems. Remote control included as a standard feature on all outdoor models. Indoor models are certified up to 10100 ft altitude. Provides a variety of installation options - outdoor and direct vent. Complies with ultra-low NOx regulations and meets the energy efficiency requirements. Easy-link system capable up to four units. The ATI-540H-P tankless water heater uses up to 199000 Btu/hr of liquid propane to deliver an endless supply of hot water for a three-bath home in northern climates and up to a four-bath home in southern climates (one shower head per bath). Utilizing condensing technology, this heater is extremely efficient with a uniform energy factor of 0.93. With an industry leading 15 years limited warranty, the ATI-540H-P tankless water heater provides years of hot water through innovation and quality.
Mid-City Product ID: 348329
Manufacturer: A.O. Smith
Manufacturer Part Number: 100123440
Additional Information: Lead-Free; Overall Dimension 17-3/4 Inch Width x 11-1/4 Inch Depth x 23-5/8 Inch Height; Energy Factor 0.93; Pressure Rating 150 PSI
Applicable Standard: CSA (Canada and US), AHRI, NSF, ANSI Z21.10.3, CSA 4.3, IAPMORT, SCAQMD 1146.2
Application: For indoor, residential and commercial applications
BTU Rating: 13000 to 199000 Btu/hr
Brand: A.O. Smith
Burner Type: Low Nitrogen Oxide
Connection Type: NPT
Dimensions: 23-5/8 in H x 17-3/4 in W x 11-1/4 in D
Draft Hood Outlet Vent Size: 3 Inch or 4 Inch
Energy Factor: 0.93
Energy Saver Conformance: Yes
Flow Rate: 10 gpm
Fuel Type: Liquid Propane
Gas Connection: 3/4 Inch Threaded
Gas Type: Propane
Gph Recovery: 10 GPM
Heating Element: Copper/Stainless Steel
Ignition System: Electronic
Ignition Type: Electronic Spark
Inclusions Features: Air-Fuel Ratio (Afr) Sensor, Overheat Cut-Off Fuse, Factory-Installed Power Cord
Inlet Outlet Connection: 3/4 Inch
Input Supply Rating: 199000 BTU/Hour
Insulation Details: Thermal
Lead Free Contains Lead: Lead-Free
Pressure Rating: 15 to 150 psi Water, 8 to 14 in-WC Natural Gas
Product Features: Continuous Maximum Flow Rates up to 10.0 GPM; Exhaust and Water Temperature Safety Control; Overheat Cut-Off Fuse; Internal Freeze Protection System; Power Direct Vent Design; Energy Star Rated; Lead-Free
Standards/Approvals: AHRI Certified|ANSI Z21.10.3|cCSAus Certified|CSA 4.3|ENERGY STAR Certified|IAPMO R&T Low Lead Certified|LEED 1.5|NSF Certified|SCAQMD Rule 1146.2
Temperature Rating: 99 to 122 deg F
Type: Space Saving, Indoor, High Efficiency
UNSPSC: 40101826
Vent Diameter: 3, 4 in
Vent Size: 70 ft L at 3 in Dia, 100 ft L at 4 in Dia
Vent Type: Power Direct
Venting Type: Power Direct
Voltage Rating: 120 V
Warranty: 15 year Limited Residential, 5 year Limited Commercial Heat Exchanger, 5 year Parts
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The ProLine\u00ae XE Condensing Ultra-Low NOx Indoor Tankless Water Heater with X3\u00ae Scale Prevention Technology delivers continuous hot water, while protecting against scale build-up. Our new condensing gas tankless line features X3\u2122 Scale Prevention Technology to last three times longer. A. O. Smith\u2019s ProLine\u00ae water heaters are residential products built to commercial-grade standards.<\/p>","notice":null,"product_id":466023,"model_number":"ATI-540HX3-P","buy_line":"AOSMITH","permission_tags":[],"image":{"src":"\/imager\/generalimages\/products\/2937062\/AO-SMITH-ATI-540HX3-P-TANKLESS-WATER-HEATER_9d774b89831857b4dfc965837c0ae6fd.jpg","srcset":"\/imager\/generalimages\/products\/2937062\/AO-SMITH-ATI-540HX3-P-TANKLESS-WATER-HEATER_9d774b89831857b4dfc965837c0ae6fd.jpg 300w","alt":"AO SMITH ATI-540HX3-P INDOOR\nCONDENSING TANKLESS WATER HEATER\nW\/ X3 TECHNOLOGY 199,000 BTU\nPROPANE"},"substitutes":null,"uoms":[{"label":"ea (1)","value":{"um":"ea","qty":1,"increment":1}}],"nonstock":false},{"id":273777,"title":"DS TCF2B60T21S 5T AC UNIT R410A UPTO 15.2 *SEER2* TWO STAGE 39-1\/2H34-1\/4W 38D 3\/8\"LL 1-1\/8\"SL*****ALL R410A SALES FINAL*******NO RETURNS AFTER 5\/31\/2025**","url":"https:\/\/mid-city.com\/products\/475314","description":null,"notice":"The industry transition from R410a to A2L refrigerants is under way. If the product you are looking for on our website is no longer available, please reach out to your RM, or local HVAC Associate, for assistance on finding in-stock alternates that meet the needs of your application.","product_id":475314,"model_number":"TCF2B60T21S","buy_line":"UPGRES","permission_tags":[{"title":"Luxaire","id":337803,"restrictedMessage":"Luxaire certification is required to purchase this item."}],"image":{"src":"\/imager\/generalimages\/products\/378513\/UNI-BB2019LUX51_HR_9d774b89831857b4dfc965837c0ae6fd.jpg","srcset":"\/imager\/generalimages\/products\/378513\/UNI-BB2019LUX51_HR_9d774b89831857b4dfc965837c0ae6fd.jpg 300w","alt":"DS TCF2B60T21S 5T AC UNIT R410A UPTO 15.2 *SEER2* TWO STAGE 39-1\/2H34-1\/4W 38D 3\/8\"LL 1-1\/8\"SL*****ALL R410A SALES FINAL*******NO RETURNS AFTER 5\/31\/2025**"},"substitutes":null,"uoms":[{"label":"ea (1)","value":{"um":"ea","qty":1,"increment":1}}],"nonstock":false},{"id":103553,"title":"(LFC) 3\/4\" (PEX CRIMP X FIP)\nTANKLESS PLUMBING INSTALL KIT WITH\nPRV (101-251NL)","url":"https:\/\/mid-city.com\/products\/388184","description":null,"notice":null,"product_id":388184,"model_number":"101-251NL","buy_line":"LEGEND","permission_tags":[],"image":{"src":"\/imager\/generalimages\/products\/1132685\/Nibco-Webstone_H14443WPR_Image1_9d774b89831857b4dfc965837c0ae6fd.jpg","srcset":"\/imager\/generalimages\/products\/1132685\/Nibco-Webstone_H14443WPR_Image1_9d774b89831857b4dfc965837c0ae6fd.jpg 300w","alt":"(LFC) 3\/4\" (PEX CRIMP X FIP)\nTANKLESS PLUMBING INSTALL KIT WITH\nPRV (101-251NL)"},"substitutes":"514097","uoms":[{"label":"ea (1)","value":{"um":"ea","qty":1,"increment":1}}],"nonstock":false}],"tagTheme":null,"display":"details"}