Specification Sheet

ManualsBrandsAO Smith ManualsHot Water TanksAO Smith 100 Gallon Commercial Natural Gas Water Heater with 250,000 BTU Input from the Cyclone Series

Page 1 of 6

AOSCG10210

Commercial Gas

Water Heaters

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

INTELLIGENT CONTROL SYSTEM

WITH LCD DISPLAY AND iCOMM

CONNECTIVITY

• Exclusive A. O. Smith designed touch display

control system

• Provides detailed water heater status

information

• Precise temperature control adjustable from 90

to 180 degrees

• Built-in diagnostics

• Run history information

• Cyclone

Mxi Modulating water heaters

are compatible with the iCOMM

™

remote

monitoring system. Call 1.888.928.3702 for

information.

COMING SPRING 2017

• Remote monitoring capability utilizing the

iCOMM app. Wi-Fi connectivity kit requited for

models 120-250, standard on models 300-500.

SUBMERGED COMBUSTION CHAMBER,

WITH HELICAL HEAT EXCHANGER COIL

• Positioned in center of tank, surrounded by

water to virtually eliminate radiant heat loss

from chamber

• Direct spark ignition

• Spiral heat exchanger keeps hot burner gases

swirling, uses centrifugal force to maximize

efﬁciency of heat transfer to water in tank

• Spiral heat exchanger reduces lime scale

from forming on water-side surfaces, which

maintains energy efﬁciency over time

POWERED ANODES STANDARD ON ALL

MODELS

• Provides long-lasting tank protection in varying

water conditions

• Powered anodes are non-sacriﬁcial

• Automatically adjusts output needed to

properly protect the tank

CYCLONE

Mxi MODULATING

MODULATING BURNER ADVANCES THE CYCLONE TO HIGHER LEVELS OF EFFICIENCY

The full line of A. O. Smith Cyclone Mxi condensing water heaters has been designed to provide

years of dependable service and feature industry leading technology. Models are available from

120,000 to 500,000 Btu/h and all deliver thermal efﬁciencies of 95% and higher. The unique helical

coil heat exchanger limits weld joints for optimal service life while maximizing heat transfer.

Cyclone is the industry leader in high efﬁciency commercial water heating. The current Mxi

modulating models adjust ﬁring rate to the speciﬁc demand further increasing efﬁciency and

money savings.

PERMAGLAS

ULTRA COAT

™

GLASS

LINING

• Glass coating is applied using a liquid slush

coating technique to ensure uniform coating

• Heat exchanger coil is glassed both externally

and internally for optimum protection

MECHANICAL VENTING VERSATILITY

• Conventional power venting or direct venting

• Vents vertically or through a sidewall

• Front located exhaust and condensate

connections allow for easy install and access

• Vents with low cost PVC Schedule 40 intake

and exhaust pipe. Approved for optional CPVC

Schedule 40, Polypropylene and AL29-4C

stainless steel vent materials

• Direct-vent intake and exhaust pipe can

terminate separately outside building or

through single opening, using concentric vent

assembly

• Canadian installations require ULC S636 PVC/

CPVC, ULC S636 Polypropylene and AL29-4C

stainless steel pipe for intake and exhaust

HIGH EFFICIENCY MODULATING PRE-

MIX POWERED BURNER

• Down-ﬁred pre-mix burner provides optimum

efﬁciency and quiet operation

• Top-mounted burner position prevents

condensation from affecting burner operation

3-YEAR LIMITED TANK / 1-YEAR

LIMITED PARTS WARRANTY

• For complete warranty information, consult

written warranty or go to hotwater.com.

BTH-120(A) THROUGH BTH-500(A)

MODEL SHOWN:

BTH-199(A) SERIES 300/301

Summary of content (6 pages)

PAGE 1
Commercial Gas Water Heaters CYCLONE® Mxi MODULATING MODULATING BURNER ADVANCES THE CYCLONE TO HIGHER LEVELS OF EFFICIENCY The full line of A. O. Smith Cyclone Mxi condensing water heaters has been designed to provide years of dependable service and feature industry leading technology. Models are available from 120,000 to 500,000 Btu/h and all deliver thermal efficiencies of 95% and higher. The unique helical coil heat exchanger limits weld joints for optimal service life while maximizing heat transfer.
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Commercial Gas Water Heaters OTHER FEATURES: SPACE-SAVING DESIGN FOR INSTALLATION FLEXIBILITY CODES AND STANDARDS • Easy-to-remove top cover for convenient access to serviceable parts • Maximum hydrostatic working pressure: 160 psi • 0˝ installation clearances on sides and rear, 1-1/2˝ installation clearance on top • All models are design certified by Underwriters Laboratories (UL), Inc., to ANSI Z21.10.3 - CSA 4.
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Commercial Gas Water Heaters SUPPLY GAS CONNECTION INTAKE AIR CONNECTION 3 INCH PVC BTH 120-250 WATER OUTLET HEIGHT FRONT T & P VALVE B BACK C LOWER TEMPERATURE PROBE CLEANOUT D A H 3/4” NPT RECIRCULATION RETURN I F VENT CONNECTION 3 INCH (exhaust elbow) 1 1/2” NPT WATER 3/4” NPT INLET DRAIN J G E TOP VIEW 90° S GA ALL MODELS E AIR AK INT 26° 1½" NPT WATER OUTLET AN LE 18° T& C PV AL VE T US HA EX IN DRA E V VAL O U T FRONT 42° 30° 45° * Center line of water outlet
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Commercial Gas Water Heaters 1 1/2" SUPPLY GAS CONNECTION 4" PVC AIR INTAKE CONNECTION 20° GAS 70° BTH 300-500 T&P FRONT BACK 74-1/2in 189.23cm 1 1/2" NPT WATER OUTLET 33-1/8in O.D. 84.12cm 75-3/4in 192.41cm 69-1/4in 175.9cm 52in 132.08cm DRA IN 30° FRONT 18° 3/4" NPT RECIRC RETURN T US HA EX T& P UT TOP 63-1/8in 160.35cm WATER OUTLET HEIGHT 4" EXHAUST VENT CONNECTION 42° 23in 58.43cm 45° CLEANOUT 1 1/2" SUPPLY GAS CONNECTION 3/4" NPT DRAIN 4-3/4in 12.07cm 12-3/4in 32.
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Commercial Gas Water Heaters RECOVERY CAPACITY Model Number Input Type of Gas kW 35 Thermal Efficiency BTH-120(A) Natural/Propane BTU/HR 120,000 BTH-150(A) Natural/Propane 150,000 44 98% BTH-199(A) Natural/Propane 199,900 58 97% BTH-250(A) Natural/Propane 250,000 73 96% BTH-300(A) Natural/Propane 300,000 88 96% BTH-400(A) Natural/Propane 399,900 117 95% BTH-500(A) Natural/Propane 499,900 146 95% 95% U.S.
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Commercial Gas Water Heaters OPTIONAL KITS COMMON VENTING KITS FOR UP TO 3 WATER HEATERS (ONE KIT PER WATER HEATER REQUIRED) OPTIONAL CONCENTRIC VENT KITS • BTH-120 - 250 vent kit p/n 100111100 • BTH-300 - 500 vent kit p/n 100113124 Kit 100227396 100223775 100227395 100223774 Description PVC Common Vent Kit, 120 – 250 Models PVC Common Vent Kit, 300 – 500 Models Polypropylene Common Vent Kit, 120 -250 Models Polypropylene Common Vent Kit, 300 - 500 Models Installations must comply with all national, stat