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

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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

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

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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

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

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Commercial Gas Water Heaters

INDUCED DRAFT MOTOR

CHE

TOP

OUTLET

1 1/2" NPT

1" CLEARANCE

TOP VIEW

1 1/2" NPT

OPENING

1 1/2" NPT

Dimensions

Model Number

BTR-120*

BTR-154

BTR-180

BTR-197

BTR-198

BTR-199

BTR-200(A)

BTR-250(A)**

BTR-251(A)**

BTR-275(A)**

BTR-305(A)

BTR-365(A)

BTR-400(A)

BTR-500(A)†**

Inches or CM

OUTLET

B G

INLET

1˝ CLEARANCE

GAS CONNECTION

MODEL

BTR-120-400

TOP OUTLET

A B C D E F G H I J Standard ASME

1˝ NPT RELIEF VALVE

OPENING

TOP INLET

MODEL

BTR-500

Dimensions

Inches 69-3/4" 4-1/4" 59-1/2" 50-7/8" 19-11/16" 19" 1/2" 51-7/8" 6" 27-3/4" 400 lbs. -

CM 177 11 151 129 50 48 - 132 15 71 182 Kg -

Inches 73" 4-1/4" 66-1/2" 57-7/8" 19-11/16" 19" 1/2" 59" 6" 27-3/4" 470 lbs. -

CM 185 11 169 147 50 48 - 150 15 71 213 Kg -

Inches 67-1/2" 4-1/2" 62" 53-1/2" 20-1/2" 21" 1/2" 54-5/8" 6" 27-3/4" 470 lbs. -

CM 171 12 157 136 52 53 - 139 15 71 213 Kg -

Inches 75" 4-1/2" 70 61-1/2" 20-1/2" 21" 1/2" 62-5/8" 6" 27-3/4" 603 lbs. -

CM 192 12 178 157 52 53 - 159 15 71 273 Kg -

Inches 75" 4-1/2" 70 61-1/2" 20-1/2" 21" 1/2" 61-1/2" 6" 27-3/4" 603 lbs. -

CM 192 12 178 157 52 53 - 150 15 71 273 Kg -

Inches 67-1/2" 4-1/2" 62 53-1/2" 20-1/2" 21" 1/2" 54-1/8" 6" 27-3/4" 470 lbs. -

CM 171 12 157 136 52 53 - 139 15 71 213 Kg -

Inches 72" 4-1/2" 65-1/8" 55-7/8" 19-3/4" 23" 1/2" 56-3/8" 8" 30-1/4" 630 lbs. 725 lbs.

CM 183 12 165 142 50 58 - 143 20 77 286 Kg 329 Kg

Inches 72" 4-1/2" 65-1/8" 55-7/8" 19-3/4" 23" 1/2" 56-3/8" 8" 30-1/4" 630 lbs. 725 lbs.

CM 183 12 165 142 50 58 - 143 20 77 286 Kg 329 Kg

Inches 75" 4-1/2" 65-3/4" 57-1/4" 20" N/A 1/2" 58-3/4" 8" 27-3/4" 750 lbs. 862 lbs.

CM 191 12 167 145 51 N/A - 149 20 70 341 Kg 391 Kg

Inches 72" 4-1/2" 65-1/8" 55-7/8" 19-3/4" 23" 1/2" 56-3/8" 8" 30-1/4" 630 lbs. 725 lbs.

CM 183 12 165 142 50 58 - 143 20 77 286 Kg 329 Kg

Inches 75" 4-1/2" 6- 3/4" 57-1/4" 20" N/A 1/2" 58-3/4" 8" 27.75 750 lbs. 862 lbs.

CM 191 12 167 145 51 N/A - 149 20 70 341 Kg 391 Kg

Inches 79-1/2" 4-1/2" 70-1/4" 62-1/2" 22-1/2' 23" 3/4" 63" 8" 27-3/4" 725 lbs. 833 lbs.

CM 202 12 178 159 57 58 - 160 20 71 329 Kg 379 Kg

Inches 75-1/2" 4-1/2" 67-1/2" 58-1/4" 26-3/4" 23" 3/4" 59" 8" 30-1/4" 760 lbs. 874 lbs.

CM 192 12 171 148 68 58 - 150 20 77 345 Kg 396 Kg

Inches 81-1/2" 17.5" 77-1/4" 67-1/2" 27-1/8" 21" 1" 67-1/2" 8" 27-3/4" 812 lbs. 857 lbs.

CM 209 44 196 171 69 53 3 171 20 70 368 Kg 389 Kg

Specify when ordering propane (LP) gas. *Model BTR 120 is shipped with a 6” x 5” ﬂue outlet adapter. **Models BTR 250, 251 , 275 and 500 are shipped with a 8” x 6” ﬂue outlet adapter. Standard models certiﬁed for sea level to 2,000 ft. elevation. Order SMR S54 for elevations up to 8,000 ft. † BTR-500 model features induced draft design and no damper. Back side water connections, Inlet and outlet, are represented by “E” and “H” respectively for height dimensions.

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

1" NPT

RELIEF

VALV E

TOP

OUTLET

Approx. Shipping

Weight

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AOSCG10300

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CAPACITY, INPUT AND OUTPUT

Model Number Input BTU/HR Gallons or Litres Tank Size Litres

BTR-120* 120,000

BTR-154 154,000

BTR-180 180,000

BTR-197 199,000

BTR-198 199,000

BTR-199 199,000

BTR-200(A) 199,000

BTR-250(A)** 250,000

BTR-251(A)** 251,000

BTR-275(A)** 275,000

BTR-305(A) 305,000

BTR-365(A) 365,000

BTR-400(A) 390,000

BTR-500(A)†** 500,000

Specify when ordering propane (LP) gas. *Model BTR 120 is shipped with a 6” x 5” ﬂue outlet adapter. **Models BTR 250, 251, 275 and 500 are shipped with a 8” x 6” ﬂue outlet adapter. Standard models certiﬁed for sea level to 2,000 ft. elevation. Order SMR S54 for elevations up to 8,000 ft. † BTR-500 model features induced draft design and no damper. Recovery based on 80% efﬁciency.

U.S. Gallons 71 GPH 291 116 83

Litres 268 LPH 1102 439 314

U.S. Gallons 81 GPH 373 149 107

Litres 307 LPH 1412 564 405

U.S. Gallons 81 GPH 434 174 124

Litres 307 LPH 1643 659 469

U.S. Gallons 100 GPH 482 193 132

Litres 379 LPH 1825 731 500

U.S. Gallons 100 GPH 482 193 132

Litres 379 LPH 1825 731 500

U.S. Gallons 81 GPH 482 193 132

Litres 307 LPH 1825 731 500

U.S. Gallons 100 GPH 482 193 132

Litres 379 LPH 1825 731 500

U.S. Gallons 100 GPH 606 242 173

Litres 379 LPH 2294 918 655

U.S. Gallons 65 GPH 608 243 174

Litres 246 LPH 2303 921 658

U.S. Gallons 100 GPH 667 267 190

Litres 379 LPH 2524 1009 721

U.S. Gallons 65 GPH 739 296 211

Litres 246 LPH 2799 1120 800

U.S. Gallons 85 GPH 885 354 253

Litres 322 LPH 3349 1340 957

U.S. Gallons 100 GPH 970 388 277

Litres 379 LPH 3671 1468 1049

U.S. Gallons 85 GPH 1212 485 346

Litres 322 LPH 4588 1835 1311

Commercial Gas Water Heaters

Recovery - Gallons or Litres Per Hour at Degree Rise

40°F 100°F 140°F 22°C 56°C 78°C

SPECIFICATION

(Natural or Propane) gas water heater(s) shall be A. O. Smith Master-Fit

model # _____________ or equal, with a storage capacity of __________ gallons, an input rating of ___________________ BTUs per hour, a recovery rating of_________ gallons per hour (gph) at 100ºF rise and a maximum hydrostatic working pressure of 160 psi. Water heater(s) shall be protected against overheating caused by the buildup of scale, ﬁlm and other sediment by a self-cleaning device, positioned inside the tank so that it directs the ﬂow of inlet water to keep precipitated solids in suspension so that they are removed from the water heater on that or successive draws. Glasslined water heater(s) shall also be protected against electrolytic corrosion by multiple factory-installed anode rods. In addition, water heater(s) shall: 1) Be equipped with an integrated control system consisting of a 180ºF adjustable thermostat with upper and lower sensing bulbs. 2) Be equipped with intermittent electronic ignition, a manual reset gas shutoff device, a gas pressure regulator, factory-installed, CSA Certiﬁed and ASME Rated T&P relief valve and 2-3/4˝ x 3-3/4˝ tank inspection port. 3) Be design-certiﬁed by UL (Underwriters Laboratories) to current edition of ANSI Z.21.10.3 CSA 4.3 standards governing storage-type water heaters. 4) Meets the thermal efﬁciency and standby loss requirements of the U. S. Department of Energy and Current Edition of ASHRAE/ IESNA 90.1. 5) Have a 3-year limited warranty against corrosion as outlined in the written warranty.

For technical information, call 800-527-1953. A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.

www.hotwater.com | 800-527-1953 Toll-Free USA

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AOSCG10300

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

Specifications and Main Features

Frequently Asked Questions

User Manual