A.O. Smith BTR-154, BTR-180, BTR-197, BTR-198, BTR-199 User Manual

Commercial Gas
Water Heaters

MASTER-FIT® BTR

®

The Master-Fit
installation flexibility for both new construction and replacement applications.
Multiple options for placement of water connections and low installation clearances
are additional installer-friendly features.

BTR series provides outstanding performance and maximum

FACTORY-INSTALLED DRAFT
DIVERTER AND AUTOMATIC FLUE
DAMPER (BTR-120-400 MODELS)

• Low-profile draft diverter helps for
installation in tight spaces

• Automatic motorized flue damper
helps minimize standby heat loss

• BTR-500 Model features induced draft
design and no damper

THREE WATER CONNECTION
OPTIONS FOR ADDED FLEXIBILITY

• Hot and cold water connections can
be made through front, top or back of
unit

™

• Eliminator

system operates when

cold water is connected through front

®

PERMAGLAS

ULTRA COAT™ GLASS

LINING

• Exclusive process provides superior
protection against corrosion

™

• CoreGard

anode rods with stainless
steel core provide additional corrosion
protection

INTERMITTENT ELECTRONIC
IGNITION

• Eliminates standing pilot, saves energy

• Includes power ON/OFF switch

• Provides flame failure response in less
than one second

FACTORY- INSTALLED, CSA
CERTIFIED AND ASME RATED T&P
RELIEF VALVE

MAXIMUM HYDROSTATIC WORKING
PRESSURE: 160 PSI

CODES AND STANDARDS

• Design-certified by UL (Underwriters
Laboratories), according to ANSI
Z.21.10.3 - CSA 4.3 standards
governing storage-type water heaters

• Meets the thermal efficiency and
standby loss requirements of the U.
S. Department of Energy and current
edition of ASHRAE/IESNA 90.1

• Design-certified by Underwriters
Laboratories Sanitation to NSF
Standard 5 for 180°F (82°C) water

• Optional ASME tank construction
available on select models

™

THE ELIMINATOR

SELF-CLEANING

SYSTEM

• Designed to significantly reduce or
eliminate sediment build-up inside the
tank

• Reduced sediment build-up maintains
rated thermal efficiency and reduces
water heating costs

• Self-cleaning system maximizes tank
life

3-YEAR LIMITED TANK / 1-YEAR
LIMITED PARTS WARRANTY

• For complete warranty information,
consult written warranty or go to
hotwater.com.

BTR-120 THROUGH BTR-500(A)

ON SELECT MODELS

THE ELIMINATOR™ SELF-CLEANING SYSTEM

© November 2015 A. O. Smith Corporation. All rights reserved.

www.hotwater.com | 800-527-1953 Toll-Free USA | A. O. Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

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AOSCG10300

OTHER MASTER-FIT® FEATURES

Commercial Gas
Water Heaters

FULLY AUTOMATIC CONTROL SYSTEM

• Manual-reset gas shut-off device prevents excessive water
temperature

• Adjustable thermostat with 120ºF — 180ºF range

• Gas pressure regulator and pilot filter

HANDHOLE CLEANOUT

• Allows easy access to tank interior for cleaning

PLUG KITS

• Pipe nipples and caps included to plug unused water

®

connections MASTER-FIT

OPTIONS:

MANIFOLD KITS FOR MULTIPLE HEATER INSTALLATIONS

OPTIONAL LEG KIT TO MEET NSF STANDARD 5

• For all BTR models, Part Number 9003425205

MECHANICAL VENTING KITS

• For BTR-120 through BTR-200, Part Number 9005381205

• For BTR-250 through BTR-400, Part Number 9003434205

• For installation of approved power venter to operate in
conjunction with water heater thermostat

• Field wiring should conform to latest version of the National
Electric Code ANSI/NFPA No.70

• For more information, consult manual shipped with water
heater or contact the A. O. Smith Technical Support Center
at1-800-527-1953

• 2-unit kit, Part Number 9003426205

• 3-unit kit, Part Number 9003427205

• 4-unit kit, Part Number 9003428205

Water Connections in Inches

Model Number

BTR-120 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2

BTR-154 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2

BTR-180 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2

BTR-197 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2

BTR-198 1-1/2 1-1/2 2 1-1/2 1-1/2 2

BTR-199 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2

BTR-200(A) 1-1/2 2 2 1-1/2 2 2

BTR-250(A) 1-1/2 2 2 1-1/2 2 2

BTR-251(A) N/A 1-1/2 1-1/2 N/A 1-1/2 1-1/2

BTR-275(A) 1-1/2 2 2 1-1/2 2 2

BTR-305(A) N/A 1-1/2 1-1/2 N/A 1-1/2 1-1/2

BTR-365(A) 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2

BTR-400(A) 1-1/2 2 2 1-1/2 2 2

BTR-500(A) 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2

Top Front Back Top Front Back

Inlet Outlet

© November 2015 A. O. Smith Corporation. All rights reserved.

www.hotwater.com | 800-527-1953 Toll-Free USA | A.O.Smith Corporation | 500 Tennessee Waltz Parkway | Ashland City, TN 37015

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AOSCG10300