A. O. Smith BTR-151 User Manual

Commercial Gas Water Heaters

MASTER-FIT® SERIES COMMERCIAL GAS WATER HEATERS

BTR-151(A)

FEATURES

The Master-Fit® BTR-151 and BTR-201 are designed for installation in booster applications, to supply commercial dishwashers with very high temperature water, typically 180ºF. A booster water heater is generally used in conjunction with a standard water heater water delivering hot water at a lower temperature to meet the non-dishwashing needs of a restaurant or other foodservice application.

With a 32-gallon storage tank, these compact units measure only 45’’ high with a hot water outlet in the top and both top and cold water inlets in the front.

THE ELIMINATOR™SELF-CLEANING SYSTEM

• Designed to signiﬁ cantly reduce or eliminate buildup of lime, sand and other sediment inside the tank

• Reduced sediment buildup helps Master-Fit water heaters maintain their rated energy efﬁciency and reduce water heating costs

• Self-cleaning system also helps prolong tank life

BUILT-IN INDUCED DRAFT BLOWER

• Produces power-induced draft of makeup air prior to burner ignition

• Provides more efﬁcient control of heat through the ﬂue collector

• No draft hood or barometric damper required

RATED AS CATEGORY 1 APPLIANCE

• Can be commonly vented with other Category 1 appliances, using standard metal type “B” vent

PERMAGLAS

• Exclusive process provides superior protection against corrosion

• CoreGard anode rods with stainless steel core provide additional corrosion protection

ULTRA COAT GLASS LINING

through

BTR-201(A)

• The Eliminator self-cleaning device operates when cold water is connected through front

INTERMITTENT ELECTRONIC IGNITION

• Eliminates standing pilot

• Includes power ON/OFF switch

• Provides ﬂame failure response in less than one second

CSA/ASME CERTIFIED T&P RELIEF VALVE

MAXIMUM HYDROSTATIC WORKING PRESSURE 160 PSI

80% THERMAL EFFICIENCY CODES AND STANDARDS

• Design-certiﬁed by UL (Underwriters Laboratories), according to ANSI Z21.10.3 - CSA 4.3 standards governing storage-type water heaters

• Listed By UL Sanitation as complying with ANSI/NSF-5

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

• Optional ASME construction available

WARRANTY

• Three-year limited warranty against tank leaks

• For complete warranty information, consult written warranty shipped with water heater, or contact A. O. Smith

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AOSCG10400

Commercial Gas Water Heaters

CAPACITY, INPUT AND OUTPUT

BTU

MODEL

INPUT

NUMBER

HOUR

BTR-151 150,000

BTR-201 199,900

Gallons

PER

Litres

U.S.Gallons 32 167 GPH 364 242 182 145 104

Litres 121.1 632.1 LPH 1377.7 916 688.9 548.8 393.6

U.S.Gallons 32 216 GPH 485 322 241 194 139

Litres 121.1 817.6 LPH 1835.7 1218.8 912.2 734.3 526.1

TANK

SIZE

CAPACITY, INPUT AND OUTPUT

MODEL

NUMBER

inches 45 40

BTR-151(A)

and

BTR-201(A)

ABCDE FG

114.3

101.6 70.5 81.9

FIRST

HOUR

GPH

RATING

27-3/4 32-1/4

RECOVERY-GALLONS or LITRES

PER HOUR AT DEGREE RISE

40°F 60°F 80°F 100°F 140°F

LPH

22°C 33°C 44°C 56°C 78°C

DIMENSIONS

15-3/4

12.7

6-1/2

16.5

1 1/2" NPI

OUTLET

GAS

CONN.

63/4

15.2

3/4

1 1/2" NPI

INLET

WATER CONN.

1-1/2

15.2cm

3.8cm

APPROX. SHIPPING

WEIGHT

STD/ASME

1.5

460/440

181.8

1" NPI RELIEF

VALVE OPENING

CLEARANCE

(IBS.)

SUGGESTED SPECIFICATION

Gas booster water heater(s) shall be A. O. Smith Master-Fit, Model Number ______________, with a 32-gallon storage capacity, an input rate of ___________ BTU/HR, ___________ gas,

and a recovery rate of _____ gallons per hour at a _____ degree Fahrenheit temperature rise, and a maximum hydrostatic working pressure of 160 psi. Unit(s) shall have a fan-assisted

combustion system, providing a power-induced draft of makeup air prior to burner ignition. Unit(s) shall be equipped with intermittent electronic ignition with power on/off

switch, which shall provide ﬂ ame failure response in less than one second. The burner for the unit(s) shall be easily removable. Unit(s) shall be equipped with a CSA Certiﬁ ed and

ASME Rated T&P relief valve, and a 2-3/4’ x 3-3/4’ tank inspection port. The water heater tank shall be glasslined and protected against premature failure in the following

ways: 1. Against electrolytic corrosion by multiple, factory-installed anode rods 2. Against failure due to overheating caused by the buildup of scale, ﬁ lm and other sediment

by a self-cleaning device, positioned inside the tank so that it directs the ﬂ

suspension and exhausted from the water heater on that or successive hot water draws. Unit(s) shall be UL listed to comply with ANSI/NSF-5 for Sanitation. Unit(s) shall

meet the thermal efﬁ ciency and standby loss requirements of the U. S. Department of Energy and current edition of ASHRAE/IESNA 90.1, and be design certiﬁ ed

by UL (Underwriters Laboratories), according to ANSI Z21.10.3 - CSA 4.3 standards governing storage-type water heaters.

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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www.hotwater.com

ow of inlet water in such a way that microscopic particles of precipitated solids shall be kept in

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AOSCG10400