Commercial gas water heaters – A.O. Smith BTN 120-40D User Manual

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Commercial Gas Water Heaters

OTHER FEATURES

• Equipped with gas pressure regulator and pilot filter • Integral automatic gas shutoff system prevents excessive water temperature • CSA

Certified and ASME Rated T&P Relief valve are factory-installed • Maximum working pressure is 160 psi standard • Cathodic protection •
Adjustable thermostat with a 120-180°F range.

• THREE YEAR LIMITED TANK WARRANTY – For complete warranty information, consult written warranty or contact A. O. Smith.

OPTIONS

• Manifold kits for multiple heater installations.
• Meets NSF Standard 5 with optional leg kit.

BTN DIA-SCAN™ CONTROLS

The A.O. Smith BTN models feature true self diagnostic controls in a digital solid state design. These advanced control aid in both the
installation and maintenance of the BTN water heater. The White Rogers Silicon Nitride Hot Surface Ignitor ensures rugged reliability and
years of trouble free operation.

Digital Temperature Control

• Accuracy to within ± 2°F

• Power On/Standby Indicator

• ECO Open Indicator

• Reset Status Indicator

•

Heating-Mode

Indicator

Solid State Ignition Control

• Power On/Standby Indicator

• Gas Valve Circuit Monitor

• Reverse Polarity Indicator

• Improper Grounding Error Indicator

• Lock Out Condition Indicator with Auto Retry

• Low Gas Pressure & Blower Prover Indicator

• Weak Flame Sense Indicator

• Combustion Operation Indicator

• Call for Heat Indicator

Solid State Temperature Probe

• Solid State Thermistor Technology

• Plus or minus 2°Fahrenheit

• Direct immersion package

Silicon Nitride Hot Surface Ignitor

•

Rugged

•

Dependable

• Separate Flame Prover Rod

• Quick connect terminals

• Adaptive learning technology extends ignitor life

Revised October 2012

PG 2 OF 4

www.hotwater.com

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