Submittal Sheet

Commercial Gas Water Heaters
OTHER CYCLONE Mxi FEATURES
SPACE-SAVING DESIGN FOR INSTALLATION FLEXIBILITY
nReduced footprint, ease of service, protection from water damage in case of flooding
nEasy-to-remove top cover for convenient access to serviceable parts
n0˝ installation clearances on sides and rear, 1-1/2˝ installation clearance on top
nHandhole cleanout allows easy access to tank interior for cleaning
n0˝ clearance to combustibles, approved for installation on combustible floors
CODES AND STANDARDS
nCSA certified and ASME rated T&P relief valve
nMaximum hydrostatic working pressure: 160 PSI
nAll models are design certified by Underwriters Laboratories (UL), Inc., to ANSI Z21.10.3 - CSA 4.3 Standards
nMeets the thermal efficiency and standby loss requirements of the U.S. Department of Energy and current edition ASHRAE/IESNA 90.1
nDesign-certified by Underwriters Laboratories to NSF standard 5 for 180°F (62°C) water
nComplies with SCAQMD Rule 1146.2 and other Air Quality Management Districts with similar requirements for low-NOx emissions
nASME tank construction optional on 120-500 model sizes
THREE-YEAR LIMITED TANK WARRANTY
nFor complete warranty details, consult written warranty shipped with heater, or contact A. O. Smith
(5-year tank extended warranty is optional)
OPTIONIAL KITS
nOptional Concentric Vent Kits
BTH-120 - 250 vent kit p/n 9006328005
BTH-300 - 500 vent kit p/n 9006144005
nOptional Low Profile Termination Vent Kits
3˝ Flush Mount Vent Kit p/n 9008933005
4˝ Flush Mount Vent Kit p/n 9008934005
6˝ Flush Mount Kit p/n 9008935005
nOptional Condensate Neutralization Kits
BTH-120-199 kit p/n 9007959005
BTH-250-500 kit p/n 9007960005
For Technical Information and Automated Fax Service, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
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GAS PRESSURE REQUIREMENTS
MODEL
MANIFOLD PRESSURE MINIMUM SUPPLY PRESSURE MAXIMUM SUPPLY PRESSURE
NATURAL GAS PROPANE GAS NATURAL GAS PROPANE GAS NATURAL GAS PROPANE GAS
BTH-120(A) 0˝ W.C. (0 kPa) 0˝ W.C. (0 kPa) 4.4˝ W.C. (1.10 kPa) 8.5˝ W.C. (2.12 kPa) 14˝ W.C. (3.49 kPa) 14˝ W.C. (3.49 kPa)
BTH-150(A) 0˝ W.C. (0 kPa) 0˝ W.C. (0 kPa) 4.4˝ W.C. (1.10 kPa) 8.5˝ W.C. (2.12 kPa) 14˝ W.C. (3.49 kPa) 14˝ W.C. (3.49 kPa)
BTH-199(A) 0˝ W.C. (0 kPa) 0˝ W.C. (0 kPa) 4.4˝ W.C. (1.10 kPa) 8.5˝ W.C. (2.12 kPa) 14˝ W.C. (3.49 kPa) 14˝ W.C. (3.49 kPa)
BTH-250(A) 0˝ W.C. (0 kPa) 0˝ W.C. (0 kPa) 4.4˝ W.C. (1.10 kPa) 8.5˝ W.C. (2.12 kPa) 14˝ W.C. (3.49 kPa) 14˝ W.C. (3.49 kPa)
BTH-300(A) 0˝ W.C. (0 kPa) 0˝ W.C. (0 kPa) 4.8˝ W.C. (1.19 kPa) 8.5˝ W.C. (2.12 kPa) 14˝ W.C. (3.49 kPa) 14˝ W.C. (3.49 kPa)
BTH-400(A) 0˝ W.C. (0 kPa) 0˝ W.C. (0 kPa) 4.8˝ W.C. (1.19 kPa) 8.5˝ W.C. (2.12 kPa) 14˝ W.C. (3.49 kPa) 14˝ W.C. (3.49 kPa)
BTH-500(A) 0˝ W.C. (0 kPa) 0˝ W.C. (0 kPa) 4.8˝ W.C. (1.19 kPa) 8.5˝ W.C. (2.12 kPa) 14˝ W.C. (3.49 kPa) 14˝ W.C. (3.49 kPa)
NUMBER OF 90°
ELBOWS INSTALLED
3 INCH PIPE 4 INCH PIPE
MAXIMUM FEET (METERS) MAXIMUM FEET (METERS)
One (1) 45 feet (13.7 meters) 115 feet (35.0 meters)
Two (2) 40 feet (12.2 meters) 110 feet (33.5 meters)
Three (3) 35 feet (10.7 meters) 105 feet (32.0 meters)
Four (4) 30 feet (9.1 meters) 100 feet (30.5 meters)
Five (5) N/A 95 feet (29.0 meters)
Six (6) N/A 90 feet (27.4 meters)
VENTING REQUIREMENTS
BTH-120(A) - 250(A)
BTH-300(A) - 500(A)
NUMBER OF 90°
ELBOWS INSTALLED
4 INCH PIPE 6 INCH PIPE
MAXIMUM FEET (METERS) MAXIMUM FEET (METERS)
One (1) 65 feet (19.8 meters) 115 feet (35.0 meters)
Two (2) 60 feet (18.2 meters) 110 feet (33.5 meters)
Three (3) 55 feet (16.8 meters) 105 feet (32.0 meters)
Four (4) 50 feet (15.2 meters) 100 feet (30.5 meters)
Five (5) 45 feet (13.7 meters) 95 feet (29.0 meters)
Six (6) 40 feet (12.2 meters) 90 feet (27.4 meters)