A.O. Smith BTN154, BTN180, BTN199C, BTN199, BTN200A User Manual
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Commercial Gas Water Heaters
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MasterFit® Low NOx Commercial Gas Tank-Type
Water Heaters
FEATURES
Eighty plus percentage thermal efficiency affords lower operating costs on most models.
INDUCED DRAFT BUILT-IN BLOWER - The blower is built into the top cover, factory mounted and wired. Ideal for installations where negative pressure is present in the building. Blower proves draft prior to ignition. No drafthood or barometric damper required.
METAL VENTING - Rated Category I Appliance. Uses standard metal single wall or double wall type “B” vent. Can be commonly vented with other Category I appliances. Vent connects directly to the blower outlet. Perfect choice for retrofit and upgrade installations.
WATER CONNECTIONS - For ease of installation, all BTNs feature water connections on the top, front, and rear.
GLASSLINED TANK - Permaglas® Ultracoat is the proprietary ceramic coating developed by A. O. Smith’s ceramic engineers specifically for the heater. It is applied after the complete tank has been assembled to give a seamless barrier against hot water corrosion. The maximum working pressure is 160 psi.
INSTALLED COST SAVINGS - When multiple BTN units are exclusively used in a vent manifold, use the National Fuel Gas Code Table 13 Fan Sizing Charts to determine vent diameter and specifications. The BTN with its internal induced draft blower enables safe use of smaller vent diameters. This feature can save hundreds of dollars in installation costs.
FULLY AUTOMATIC DIGITAL CONTROLS WITH SAFETY SHUTOFF - Accurate, dependable control system. Manual reset gas shutoff device for added safety. Maximum inlet gas pressure is 14” W.C. Minimum gas pressure is 5.2” W.C. Natural Gas.
FOAM INSULATION - Saves fuel, helps reduce standby heat loss.
JACKET- Heavy gauge steel finished with a baked enamel finish over a bonderized undercoat.
EASY CLEANING - Handhole cleanout allows access for easy cleaning.
FULLY TESTED FOR SAFETY AND PERFORMANCE - Design certified by the Underwriters Laboratory for 180°F hot water service. Meets rigid requirements of the National Sanitation Foundation when equipped with optional leg kit. Certified for use on combustible flooring.
INTERMITTENT IGNITION DEVICE - Eliminates standing pilot. Provides flame failure response in less than one second. Power ON/OFF switch.
EASY-TO-INSTALL - Completely factory-assembled. Only gas, water, vent and electric connections need be made. Provided with drain valve.
ANODES - CoreGard™ long-life, stainless steel core anode rods.
PLUG KITS - Pipe nipples and caps are included to plug unused water connections.
APPROVAL RATINGS AND CERTIFICATION - All models meet ANSI Z21.10.3 - CSA 4.3 standards and the thermal efficiency and standby loss requirements of the U.S. Department of Energy and current edition of ASHRAE/IESNA 90.1. Models also comply with California Energy Commission (CEC) and Texas low NOx and Air Quality Management Districts with requirements of less than 40 ng/j.
MODELS
BTN 120-400(A)
Low Lead Content
Approved to NSF Standard 5 with option leg kit.
AOSCG10500
Revised October 2012 |
PG 1 OF 4 |
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.
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Digital Temperature Control |
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Accuracy to within ± 2°F |
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Power On/Standby Indicator |
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ECO Open Indicator |
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Reset Status Indicator |
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Heating-Mode Indicator |
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Digital Temperature Control |
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Solid State Ignition Control |
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Power On/Standby Indicator |
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Gas Valve Circuit Monitor |
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Reverse Polarity Indicator |
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Improper Grounding Error Indicator |
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Lock Out Condition Indicator with Auto Retry |
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Low Gas Pressure & Blower Prover Indicator |
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Weak Flame Sense Indicator |
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Solid State Ignition Control |
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Combustion Operation Indicator |
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Call for Heat Indicator |
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Solid State Temperature Probe |
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Solid State Thermistor Technology |
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Solid State Temperature Probe |
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Plus or minus 2°Fahrenheit |
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Direct immersion package |
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Silicon Nitride Hot Surface Ignitor |
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• Rugged |
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Dependable |
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Silicon Nitride Hot Surface Ignitor |
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Separate Flame Prover Rod |
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Quick connect terminals |
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Adaptive learning technology extends ignitor life |
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Revised October 2012 |
PG 2 OF 4 |
www.hotwater.com |
AOSCG10500 |
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