A.O. Smith BTF-80 User Manual
Commercial Gas Water Heaters
CONSERVATIONIST® POWER VENT SINGLE FLUE MODEL
MODEL
APPROVAL RATINGS AND CERTIFICATION
All models comply with: ANSI Z21.10.3/CSA 4.3 and ASHRAE/IES 90.1 – 2004
All models comply with SCAQMD Natural Gas NOx rule 1121 or 1146.2, complies with
Low NOx requirements of 40 ng/j.
All models are approved for use in combined appliance applications.
FEATURES
CFC-FREE FOAM INSULATION – Minimizes radiant heat loss.
DIP TUBE – Carries inlet water deep into tank.
HOT SURFACE IGNITION – Has a solid state ignition surface that does not flutter or blow out.
Provides increased reliability and efficiency over spark ignition systems. Eliminates the pilot and
saves energy.
INTELLI-VENT CONTROL – Provides temperature control and LED diagnostics.
GLASSLINED TANK – Glass specifically developed by A. O. Smith for water heaters is permanently
fused to steel at 1,600° F, providing years of corrosion protection and dependable use.
ANODE – Tank-mounted, screw-in replaceable anode for longer tank life.
HIGH INPUT – 80,000 BTU input assures plenty of hot water is available by providing faster
recovery rates and higher first hour draws.
BURNER – High input, multiport burner for improved combustion efficiency and low NOx.
BTF-80
TURBO SHOT™ COMBUSTION SYSTEM – Air is precisely drawn through the combustion
control port and exhausted through plastic pipe. Controlling the airflow through the heater
enhances and regulates the combustion process. In standby mode, the combustion control port
restricts air circulation through the heater.
POWERED VENTING – Provides more venting flexibility and savings. A new quiet blower allows
exhaust venting through the roof or sidewall with plastic pipe such as PVC, CPVC, and ABS.
Allowable vent lengths of up to 100 equivalent feet make installation easy in any situation.
BTF-80 is a Category 3 (positive pressure non-condensing) appliance.
BUILT-IN CONDENSATE FITTING – A condensate management coupling that attaches vent
pipe to the blower and drain hose are included.
INSTALLED TEMPERATURE & PRESSURE RELIEF VALVE – Factory installed and matched to
the heater. (Specify if your local code requires a special T&P).
Three year limited tank warranty - For complete warranty information, consult written
warranty.
Revised October 2012
June 2010R
PG 1 OF 2
AOSCG10700
Commercial Gas Water Heaters
Model Units A B C D E F G H J K L M
BTF-80
Inches 68 57 1/4 29 5/8 25 3/8 15 4 15 5/8 16 2 1 1/2 11 15/16
cm 172.7 145.4 75.2 64.5 38.1 10.2 39.7 40.6 5.1 NPT NPT 30.3
RECOVERY CAPACITIES
U.S. Gallons/Hrs. and Litres/Hr. at TEMPERATURE RISE INDICATED
Model
BTF-80
Recovery capacity based on 80% thermal efficiency.
Input Approx. Capacity F° 30F° 40F° 50F° 60F° 70F° 80F° 90F° 100F° 110F° 120F° 130F° 140F°
Btuh KW U.S. Gals. Litres C° 17C° 22C° 28C° 33C° 39C° 44C° 50C° 56C° 61C° 67C° 72C° 78C°
80,000 --- 74 --- GPH 259 194 155 129 111 97 86 78 71 65 60 55
23.4 --- 280 LPH 979 734 587 489 419 367 326 294 267 245 226 210
SUGGESTED SPECIFICATION
Water Heater(s) shall be power vent model no. _______________ as manufactured by A. O. Smith or an approved equal. Heater(s) shall be internally glasslined and gas-fired, equipped to burn _________ gas, and design-certified to the latest ANSI Standard by the CSA International. Rating of _____ Gallons
and an input rating of _____ BTU/HR with a recovery capacity of _____ GPH at 100° F. Waters heaters must be certified for power venting applications
using standard PVC, class 160, schedule 40, ABS or CPVC vent piping. The water heater shall include a 6´ plug-in cord and provision for direct connection
to standard electrical conduit. Blower shall include pressure switches which will shut down power to the burner in case of vent system failure due to down
drafts or vent blockage. Heater shall have a maximum working pressure of 150 psi, and a nominal storage tank capacity of ____ gallons with a 3/4˝ relief
valve opening. Heater(s) shall also be equipped with an automatic shut off device to shut off entire gas supply in event of excessive temperature in tank.
Outer jacket shall have a baked enamel finish.
For Technical Information and Automated Fax Service, call 800-527-1953. A. O. Smith Corporation reserves the right to make prod uct changes or improvements without prior notice.
Revised October 2012
June 2010R
Revised November 2009 PG 2 OF 2
www.hotwater.com
AOSCG10700
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