Commercial Gas Water Heaters
®
Master-Fit® Ultra-Low NOx Commercial Gas
Tank-Type Water Heaters
Features
80% Thermal Efficiency Means Lower Operating Costs
Fan Assisted Combustion - The blower is built into the low NOx burner assembly. Complies with California SCAQMD Rule 1146.2 and other air quality management districts with similar NOx emission requirements of 14 ng/J or 20 ppm.
Air-Flapper - A stainless steel air flapper is used inside the premix system to replace externally mounted flue damper to minimize the standby heat loss and to minimize the overall heater height.
METAL VENTING - Rated Category I Appliance. Uses standard double wall type “B” vent. Can be commonly vented with other Category I appliances. Vent connects directly to the vent connector outlet. An excellent choice for retrofit and upgrade installations.
WATER CONNECTIONS - For ease of installation, all BTL’s feature water connections on the top, front, and rear. “The Eliminator” inlet water connection eliminates harmful scale buildup, extending the life of the product. The front inlet connection must be used for
the Eliminator benefits.
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.
INSTALLED COST SAVINGS - When multiple BTL 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 BTL uses a smaller vent diameter than a natural draft water heater which saves on installation cost.
FULLY AUTOMATIC DIGITAL CONTROLS WITH SAFETY SHUTOFF - Accurate, dependable control system. Manual reset gas shutoff device for added safety.
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. Spark ignitor and power ON/OFF switch.
EASY TO INSTALL - Completely factory-assembled. Only gas, water, vent and electric connections need to be made. Provided with drain valve.
ANODES - CoreGuard™ 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.
OTHER FEATURES
•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.
•Adjustable thermostat with a 120-180°F range.
THREE YEAR LIMITED TANK / ONE YEAR LIMITED PARTS WARRANTY
• For complete warranty information, consult written warranty.
NSF LEG KIT
• Meets NSF Standard 5 with optional leg kit - Part #9008883005
A. O. Smith Corporation • 500 Tennessee Waltz Parkway • Ashland City,TN 37015 • 800-527-1953 Toll-free USA
www.hotwater.com
MODELS
BTL-120 THRU BTL-400
SERIES 200
on select models
Page 1 of 4
Revised August 2014 AOSCG10503
Commercial Gas Water Heaters
®
ROUGH-IN DIMENSIONS
ROUGH-IN DIMENSIONS
Model |
Btl-120, 154, 180, 198 |
Btl-199, 250, 275 |
Btl-310, 366, 400 |
||||||
DIMENSION |
inches |
|
cm |
inches |
|
cm |
inches |
|
cm |
|
|
|
|
|
|
|
|
|
|
a |
63 3/4 |
|
161.93 |
71 3/4 |
|
182.25 |
71 3/4 |
|
182.25 |
|
|
|
|
|
|
|
|
|
|
B |
37 |
|
93.98 |
37 |
|
93.98 |
37 |
|
93.98 |
|
|
|
|
|
|
|
|
|
|
C |
65 |
|
165.1 |
73 |
|
185.42 |
73 |
|
185.42 |
|
|
|
|
|
|
|
|
|
|
D |
52 3/4 |
|
133.99 |
60 3/4 |
|
154.31 |
60 3/4 |
|
154.31 |
|
|
|
|
|
|
|
|
|
|
E |
20 3/4 |
|
52.71 |
20 1/2 |
|
52.07 |
20 1/2 |
|
52.07 |
|
|
|
|
|
|
|
|
|
|
F |
21 |
|
53.34 |
21 |
|
53.34 |
21 |
|
53.34 |
|
|
|
|
|
|
|
|
|
|
G |
|
3/4 NPT |
|
3/4 NPT |
|
3/4 NPT |
|||
|
|
|
|
|
|
|
|||
H |
53 |
|
134.62 |
61 |
|
154.94 |
61 |
|
154.94 |
|
|
|
|
|
|
|
|
|
|
I |
6 |
|
15.24 |
6 |
|
15.24 |
6 |
|
15.24 |
|
|
|
|
|
|
|
|
|
|
J |
27 3/4 |
|
70.49 |
27 3/4 |
|
70.49 |
27 3/4 |
|
70.49 |
|
|
|
|
|
|
|
|
|
|
K |
|
1 1/2 NPT |
|
1 1/2 NPT |
|
1 1/2 NPT |
|||
|
|
|
|
|
|
|
|||
L |
|
1 1/2 NPT |
|
1 1/2 NPT |
|
1 1/2 NPT |
|||
|
|
|
|
|
|
|
|||
Approx. Shipping Weight STD |
650 |
|
295 |
750 |
|
341 |
810 |
|
367 |
|
|
|
|
|
|
|
|
|
|
Approx. Shipping Weight ASME |
N/A |
|
N/A |
800 |
|
363 |
860 |
|
390 |
|
|
|
|
|
|
|
|
|
|
Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement
All models rated at 80% thermal efficiency Models available for sale in California only
|
Page 2 of 4 |
www.hotwater.com |
AOSCG10503 |
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