Submittal Sheet

ManualsBrandsAO Smith ManualsPlumbing Supplies199,000 BTU Condensing Ultra-Low NOx Outdoor Tankless Water Heater w/ Integrated Recirculation Pump (NG)

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

COMMERCIAL-GRADE

RESIDENTIAL GAS WATER HEATERS

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AOSRG47107

FEATURES:

INTEGRATED RECIRCULATION PUMP

ENERGY STAR

QUALIFIED

AVAILABLE IN NATURAL GAS OR

PROPANE (LP)

INDOOR MODEL

• Includes integrated temperature and pump

controls with advanced diagnostics that

simplify installation and troubleshooting

• Factory-installed power cord

OUTDOOR MODEL

• Includes a wall mount temperature remote

controller and advanced diagnostics to

simplify troubleshooting

DURABLE HEAT EXCHANGER:

• Primary heat exchanger is constructed of

a commercial-grade copper that is more

resilient to erosion.

• Secondary heat exchanger is made of type

316L stainless steel to protect against

corrosion.

EASY-LINK 540P WITH THREE OTHER

540H TO INCREASE FLOW CAPACITY

COMMON VENT UP TO 8 UNITS

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

• Category IV venting can be used

• 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).

ACCESSORIES

• Pipe Cover

• Neutralizer Kit

• Isolation Valve Kits

• Concentric Termination

• Product Preservers

Anti-Scale System

WARRANTY

• 15-year limited warranty on heat exchanger

in residential applications

• 5-year limited warranty on heat exchanger

in commercial applications

• 5-year warranty on all parts

CONDENSING TANKLESS WITH

INTEGRATED RECIRCULATION PUMP

COMMERCIAL-GRADE RESIDENTIAL

INDOOR MODELS

ATI-540P

OUTDOOR MODELS

ATO-540P

Ultra-Low NOx gas tankless water heaters with condensing technology featuring

an up to 0.95 Uniform Energy Factor (UEF) which lowers operating costs and is

environmentally friendly.

ANSI Z21.10.3 • CSA 4.3

Summary of content (6 pages)

PAGE 1
COMMERCIAL-GRADE RESIDENTIAL GAS WATER HEATERS CONDENSING TANKLESS WITH INTEGRATED RECIRCULATION PUMP COMMERCIAL-GRADE RESIDENTIAL Ultra-Low NOx gas tankless water heaters with condensing technology featuring an up to 0.95 Uniform Energy Factor (UEF) which lowers operating costs and is environmentally friendly.
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COMMERCIAL-GRADE RESIDENTIAL GAS WATER HEATERS CONDENSING TANKLESS WITH INTEGRATED RECIRCULATION PUMP Gas Consumption Input Model Number Inlet Gas Pressure Dimensions in Inches Approx Shipping Weight (lbs) UEF Maximum GPM* Hot/Cold Connections Gas Connection Height Width Depth 10.5 0.93 10 3/4” NPT 3/4” NPT 23-5/8 17-3/4 11-1/4 71 8.0 14.0 0.93 10 3/4” NPT 3/4” NPT 23-5/8 17-3/4 11-1/4 71 Type Minimum BTU/H Maximum BTU/H ATI-540P-N Natural 15,000 199,000 4.
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COMMERCIAL-GRADE RESIDENTIAL GAS WATER HEATERS 540P Pressure Loss 540P Pump Performance *[Pump head] Pressure loss of 540P's water way is already deducted. 12 Pump head* 25 10 8 15 6 10 4 5 2 0 0.00 Head [feet] Pressure loss [PSI] 20 0.50 1.00 1.50 2.00 Flow rate [GPM] 2.50 3.00 3.50 4.
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540P Indoor (AT-H3P-DV) COMMERCIAL-GRADE RESIDENTIAL GAS WATER HEATERS INDOOR MODEL 17-3/4" (450 mm) 15" (381 mm) 7" (180 mm) Φ 4" (102 mm) Female 11-1/4" (285 mm) 5-3/4" (147 mm) Exhaust 2-5/8" (65 mm) Intake 2-5/8" (68 mm) Φ 4" (102 mm) Female RETURN 3-1/8" (79 mm) Drain port 6-1/4" (159 mm) RETURN 4-5/8" (117 mm) HOT 6-1/2" (164 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) 1/2 (13 mm) RETURN 4-5/8" (117 mm) GAS 5-1/8" (131 mm) Drain port 6-1/4" (159 mm) HOT 6-1/2" (164 mm) COLD 6-3/4" (17
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40P Outdoor (AT-H3P-OS) COMMERCIAL-GRADE RESIDENTIAL GAS WATER HEATERS OUTDOOR MODEL 11-1/4" (285 mm) 23-5/8" (600 mm) Drain port 6-1/4" (159 mm) RETURN 4-5/8" (117 mm) HOT 6-1/2" (164 mm) RETURN 3-1/8" (79 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) RETURN 3-1/8" (79 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) COLD 5/8" (17 mm) 120 VAC 2-7/8" (72 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) 120 VAC 2-3/4" (71 mm) GAS 5-1/8" (131 mm) COLD 6-3/4" (172 mm) Condensate dr
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COMMERCIAL-GRADE RESIDENTIAL GAS WATER HEATERS SUGGESTED SPECIFICATION FOR ATI-540P OR ATO-540P The fully modulating, on-demand, condensing gas fired tankless water heater(s) with integrated recirculation pump shall be A. O. Smith Tankless Water Heater model ATI-540P or ATO-540P, having a maximum input rating of 199,000 Btu/h and available in NG or LP. The heater shall have ¾ in. male NPT water and gas connections. The inlet gas supply pressures shall be 4.0 in. WC (min.) up to 10.5 in. WC (max.