Submittal Sheet

ManualsBrandsAO Smith ManualsPlumbing Supplies120,000 BTU Condensing Ultra-Low NOx Indoor Tankless Water Heater (LP)

Residential Gas

Tankless Water Heaters

Page 1 of 4

AOSRG46836

www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

INDOOR MODEL

ATI-140H-N

OUTDOOR MODEL

ATO-140H-N

FEATURES:

ULTRA-LOW NOX CONDENSING

TECHNOLOGY PROVIDES 0.93

ENERGY FACTOR (EF)

COMPLIES WITH CALIFORNIA

SCAQMD RULE 1146.2 AND OTHER

AIR QUALITY MANAGEMENT

DISTRICTS WITH SIMILAR NOX

EMISSION REQUIREMENTS OF 14

NG/J OR 20 PPM

OPERATES ON 1/2” GAS LINE WITH

STANDARD GAS PRESSURE

DURABLE HEAT EXCHANGER

• Copper Primary Heat Exchanger

• Secondary Heat Exchanger is made of Marine

Grade Type 316L Stainless Steel to protect

against corrosion

CONTINUOUS MAXIMUM FLOW

RATES UP TO 6.6 GPM

ENERGY STAR

QUALIFIED

AVAILABLE IN NATURAL GAS OR

PROPANE (LP)

ATI-140H-N & ATO-140H-N CAN BE

USED IN RESIDENTIAL HOT WATER

AND HEATING APPLICATIONS

(CHECK LOCAL CODES)

ELECTRONIC IGNITION -

NO PILOT LIGHT

INDOOR MODEL - INCLUDES

A BUILT-IN TEMPERATURE

CONTROLLER AND ADVANCED

DIAGNOSTICS TO SIMPLIFY

TROUBLESHOOTING

OUTDOOR MODEL - INCLUDES

A WALL MOUNT TEMPERATURE

REMOTE CONTROLLER AND

ADVANCED DIAGNOSTICS TO

SIMPLIFY TROUBLESHOOTING

FACTORY-INSTALLED POWER CORD

INCLUDED FOR INDOOR MODELS

COMPLIES WITH LEAD FREE

STANDARDS

SAFETY FEATURES:

• Air-Fuel Ratio (AFR) Sensor

• Exhaust & Water Temperature Safety Control

• Overheat Cut-Off Fuse

INTERNAL FREEZE PROTECTION

SYSTEM

POWER DIRECT VENT DESIGN

• Exhaust, 3” PVC Venting up to 70 feet or

4” PVC Venting up to 100 feet

• Provides ﬂexible venting with PVC, CPVC, or ABS

Pipe for Intake and Exhaust (solid core only).

• Category IV Stainless Steel venting can

also be used

ACCESSORIES

• Pipe Cover

• Neutralizer Kit

• Isolation Valve Kits

• Concentric Termination

• Recess Box

WARRANTY

• 15-year limited warranty on heat exchanger in

residential applications

• 6-year limited warranty on heat exchanger in

commercial applications

• 5-year limited warranty on all parts

ANSI Z21.10.3 CSA 4.3

TANKLESS CONDENSING

HIGH EFFICIENCY

Summary of content (4 pages)

PAGE 1
Residential Gas Tankless Water Heaters TANKLESS CONDENSING HIGH EFFICIENCY FEATURES: ULTRA-LOW NOX CONDENSING TECHNOLOGY PROVIDES 0.93 ENERGY FACTOR (EF) COMPLIES WITH CALIFORNIA SCAQMD RULE 1146.
PAGE 2
Residential Gas Tankless Water Heaters Model Number Gas Consumption Input Inlet Gas Pressure Energy Dimensions in Inches Maximum Hot/Cold Gas Minimum Maximum Factor GPM* Connections Connection Height Width Depth (EF) W.C. W.C. Unit Weight (lbs) Type Minimum BTU/H Maximum BTU/H ATI-140H-N Natural 15,000 120,000 4.0 10.5 0.93 6.6 3/4" NPT 1/2" NPT 22-7/8 13-7/8 10-13/16 44 ATI-140H-P Propane 13,000 120,000 8.0 14.0 0.93 6.
PAGE 3
Residential Gas Tankless Water Heaters INDOOR MODEL INDOOR MODEL Front view Side view 13-7/8" (352mm) 10" (254mm) 6-1/4" (158.5mm) 4" (102mm) 4" (102mm) 2-9/16" (64.8mm) 2-3/4" (70.2mm) 10-13/16" (274.6mm) 10-5/16" (262.2mm) 6" (152.1mm) 24" (609.4mm) 22-7/8 (580mm) 58.4 Hot 4-3/4" (121.1mm) Condensate drain port 5-1/16" (129.1mm) 5-3/8" (137mm) 7-1/16" (180mm) 1" (25.5mm) Condensate drain port 3-1/4" (82.1mm) Gas 4-1/8" (105.4mm) Hot 6-1/2" (164.6mm) Cold 7" (178.5mm) 120VAC 7-3/4" (196.
PAGE 4
Residential Gas Tankless Water Heaters Flow Rate vs. Temperature Rise 8 Flow Rate (gpm) 7 6 5 4 3 2 1 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 Temperature Rise (°F) For Technical Information, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice. ©October 2016 A. O. Smith Corporation. All Rights Reserved www.hotwater.com | 800-527-1953 Toll-Free USA | A. O.