AO Smith Boiler VWT 1000 User Guide

Commercial Gas Boilers

VWT-500

through

VWT-1000

TOTAL HOT WATER SUPPLY SYSTEM USING VF^™BOILERS

With Ac-U-Temp, A. O. Smith makes it as easy as possible to install a complete packaged hot

water supply system, combining high-efﬁciency VF^™boilers with storage tanks up to 10,000

gallons. Each Ac-U-Temp system is custom-made to your speciﬁcations for each application

and shipped fully assembled, pre-piped and pre-wired. All the installer has to do is make the

ﬂue, gas, electrical and water connections, so installations are easy.

Consult your A. O. Smith representative for more information

on the wide range of available boiler/storage tank combinations

using the Ac-U-Temp system.

VF MODULATING BOILERS

UP TO 88% THERMAL EFFICIENCY

• A. O. Smith’s most efﬁcient hot water supply boilers

• Available inputs: 500,000, 750,000, 1,000,000 BTUs

• Flexible conventional-vent or sealed-combustion

direct-vent options

• For complete information on VF Hot Water Supply

Boilers, consult VF Speciﬁcation Sheet

GLASS-LINED STORAGE TANKS

• Standard capacities up to 1,000 gallons

• Custom tanks available up to 10,000 gallons

• Standard tanks are factory jacketed and insulated –

bare uninsulated tanks also available

• Optional cement or epoxy-lined tanks available

• For complete information on standard and optional

tanks, consult tank Speciﬁcation Sheet

MULTIPLE BOILER SYSTEMS

• Ac-U-Temp systems can be designed with multiple

boilers to provide 50% to 100% back-up

• Multi-boiler systems can be sequenced to meet

changing system demands

• Sequenced multi-boiler systems with small storage

tanks are ideal for applications with relatively constant

hot water demands

• Optional sequenced control panel available

MULTIPLE TANK SYSTEMS

• Ac-U-Temp systems can be designed with multiple

tanks for applications with low ceiling heights or other

unique installation challenges

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July 2007R

BOILER DATA

DIMENSIONS

INCHES

MODEL

NUMBER

LENGTH

(C2)

WIDTH

(C1)

HEIGHT

(D)

INLET SIZE GAS INLET

Inches

76.2

152.4

167.6

5.1

2.5

VW-500

VW-750

VW-1000

76.2

190.5

5.1

2.5

VERTICAL STORAGE VESSEL DATA

DIMENSIONS

INLET

HEIGHT (B2)

INCHES

MODEL

HEIGHT

(A)

WIDTH

(B1)

NUMBER

INLET SIZE OUTLET SIZE

Inches

66-1/4

168.3

167.6

223.5

213.4

243.8

251.5

105

233.7

101

256.5

71.1

76.2

91.4

106.7

121.9

38.1

167.6

19-1/2

49.5

5.1

AJ-80A

AJV-120A

AJV-140A

AJV-200A

AJV-250A

AJV-350A

AJV-400A

AJV-500TA

AJV-500A

AJV-750A

AJV-1000A

5.1

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

2.5

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

53.3

22-1/2

57.2

22-1/2

57.2

Inches

25-1/5

64.8

24-1/2

62.2

25-1/2

64.8

218.4

118

299.7

150

137.2

381

137.2

HORIZONTAL STORAGE VESSEL DATA

DIMENSIONS

INCHES

MODEL

LENGTH OUTLET DIM

WIDTH

(B1)

HEIGHT

(B2)

INLET

HEIGHT (B3)

INLET

SIZE

OUTLET

SIZE

NUMBER

(A1)

(A2)

Inches

195.6

91.4

104.1

27.9

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

2-1/2

6.4

AJH-200

AJH-350

149.9

72-1/2

184.2

72-1/2

184.2

185.4

56-1/2

143.5

88-1/2

224.8

120-1/2

306.1

Inches

236.2

106.7

119.4

35.6

Inches

AJH-350

251.5

238.8

200.7

111

281.9

143

106.7

121.9

137.2

119.4

134.6

149.9

35.6

7.6

Inches

363.2

137.2

149.9

35.6

7.6

Page 2 of 4

ACMSS00507

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Commercial Gas Boilers

TOTAL HOT WATER SUPPLY SYSTEM USING VF^™BOILERS

Conﬁguration H

Conﬁguration P

Conﬁguration V

The above are standard available conﬁgurations. Custom conﬁgurations designed to your speciﬁcations are available. Contact your local

A. O. Smith Sales Representative for assistance.

Page 3 of 4

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Commercial Gas Boilers

TOTAL HOT WATER SUPPLY SYSTEM USING VF^™BOILERS

OTHER FEATURES:

DUAL-ENERGY SOURCE OPTION

ASME TEMPERATURE AND PRESSURE RELIEF

VALVE #125

• Storage tanks can be speciﬁed with an optional

heat exchanger for winter heating using on-site

hydronic heating boiler(s), switching to domestic

hot water boiler(s) for summertime operation

TANK TEMPERATURE SENSOR AND

THERMOMETER

ISOLATION VALVES (BALL VALVES)

125 PSI TANK WORKING PRESSURE

ALL-BRONZE CIRCULATING PUMP

LARGE SYSTEMS SHIPPED WITH SPLIT/

BOLT TOGETHER SKIDS FOR EASE OF

SHIPPING AND INSTALLATION

• Water-to-water or steam-to-water heat exchangers

available in single-wall or double-wall design

• Complete control packages can be factory-installed

for “hook up and run” simplicity

PROFESSIONAL START-UP SERVICE FURNISHED

• Assures optimum performance for each installation

OTHER OPTIONS:

150 AND 160 PSI TANK WORKING PRESSURES

11˝ X 15˝ MANHOLES

MEETS ASHRAE/IESNA 90.1-1999

5 YEAR VF BOILER HEAT EXCHANGER WARRANTY

5 YEAR STORAGE TANK WARRANTY

• For complete information, consult written warranty or

contact A. O. Smith

Tank Type (A=Skid Mounted, J=Jacketed, V=Vertical, H= Horizontal)

SUGGESTED SPECIFICATION

Hot Water Supply System - shall consist of A. O. SMITH Ac-U-Temp factory assembled unit Model No. __________. System

shall be completely factory assembled and shall include the A.O. SMITH VF hot water supply boiler(s), with input

of ____ BTU/H for (natural/propane) ____ gas and recovery capacity of _______ gph, and the A.O. SMITH glass-lined

(cement/epoxy) hot water storage tank with ____ gallons capacity for ________ mounting (vertical-horizontal). System

shall include properly sized circulator, inlet and outlet thermometers, tank temperature thermometer, relief valve, and tank

temperature control. Entire system shall be rigidly mounted on welded steel skid base and shipped assembled to job site

(Ac-U-Temp systems employing tanks too large for shipping as an assembled unit, will be shipped with the tank mounted

on a split bolt-together skid). See VF Boiler Speciﬁcation Sheet for boiler details. See A.O.Smith Storage Speciﬁcation

sheets for storage tank details.

Hot water supply boiler(s) and storage tank(s) shall have a 5 year limited warranty against corrosion as outlined in the

written warranty

For Technical Information and Automated Fax Service, call 800-527-1953.

A. O. Smith reserves the right to make product changes or improvements without prior notice.

www.hotwater.com

500 Tennessee Waltz Pkwy, Ashland City, TN 37015

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Printed in U.S.A.

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