A.O. Smith BTF-80 - Manual (Page 2)

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 glass-
lined 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.
Commercial Gas Water Heaters
Revised November 2009 PG 2 OF 2
www.hotwater.com AOSCG10700
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
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°
BTF-80
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
Recovery capacity based on 80% thermal efficiency.
June 2010R
Revised October 2012
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