Page 1
Commercial Gas Boilers
MODELS
HOT WATER SUPPLY SYSTEM USING GENESIS® BOILERS
With Ac-U-Temp, A. O. Smith makes it easy as possible to install a complete packaged hot water
supply system, combining 84% effi cient Genesis® boilers with storage tanks up to 1,000 gallons.
Each Ac-U-Temp system is custom-made to your specifi cations for each application and shipped
fully assembled, pre-piped and pre-wired. All the installer has to do is make the fl ue, 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.
GENESIS® BOILERS–UP TO 84% THERMAL EFFICIENCY
• The highest possible effi ciency for a non-condensing boiler
• Available inputs range from 300,000 to 2,500,000 BTU
• Flexible conventional-vent or sealed-combustion direct-vent options
• For complete information on Genesis® Hot Water Supply Boilers,
consult Specifi cation Sheet
GLASSLINED 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 tanks, consult tank spec
sheet or see your local rep
GWT-300
through
GWT-2500
MULTIPLE BOILER SYSTEMS
• Ac-U-Temp systems can be designed with multiple boilers to
provide 50%–100% back-up
• Boilers can be on & off fi red, or 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
DUAL ENERGY SOURCE OPTION
• Storage tanks can be specifi ed with heat exchangers to allow winter/summer heating boiler
operation
• Water-to-water or steam-to-water heat exchangers available in both single-wall or doublewall design
• Complete control packages can be factory-installed for “hook up and run” simplicity
Revised November 2012
H
CRN
AOSDG61020
PG 1 OF 4
Page 2
Commercial Gas Boilers
ELECTRIC BACK-UP OPTION
• Storage tanks can be specifi ed with heavy-duty electric heating elements and controls for up to 3,000 Kilowatt (kW) input
• 100% electric back-up ensures hot water supply even during gas outages
OTHER FEATURES:
ASME TEMPERATURE AND PRESSURE RELIEF VALVE #125
TANK TEMPERATURE SENSOR AND THERMOMETER
ISOLATION VALVES (BALL VALVES)
125 PSI TANK WORKING PRESSURE
CAST-IRON BRONZE-FITTED CIRCULATING PUMP
LARGE SYSTEMS SHIPPED WITH SPLIT/BOLT TOGETHER SKIDS FOR EASE OF SHIPPING AND INSTALLATION
OTHER OPTIONS:
ALL-BRONZE CIRCULATING PUMP
150 AND 160 PSI TANK WORKING PRESSURES
11”x 15” MANHOLES
HORIZONTAL STORAGE VESSEL DATA
MODEL
NUMBER
AJH-200
AJH-350
AJH-400
AJHT-500
AJH-500
AJH-750
AJH-1000
INCHES OR
CM
Inches 77 18 36 16 21 2-1/2 2-1/2
cm 195.6 45.7 91.4 40.6 53.3 6.4 6.0
Inches 93 19-1/2 42 15-1/2 247 2-1/2 2-1/2
cm 236.2 49.5 106.7 39.4 627.4 6.4 6.4
Inches 99 19-1/2 42 15-1/2 24 2-1/2 2-1/2
cm 251.5 49.5 106.7 39.4 61 6.4 6.4
Inches 94 21 48 16 27 3 3
cm 238.8 53.3 121.9 40.6 68.6 7.6 7.6
Inches 79 56-1/2 54 59 30 3 3
cm 200.7 143.5 137.2 149.9 76.2 7.6 7.6
Inches 111 22-1/2 54 16-1/2 30 3 3
cm 281.9 57.2 137.2 41.9 76.2 7.6 7.6
Inches 143 22-1/2 54 163-1/2 30 3 3
cm 363.2 57.2 137.2 415.3 76.2 7.6 7.6
LENGTH
(A1)
OUTLET DIM
(A2)
WIDTH
(B1)
DIMENSIONS
HEIGHT
(B2)
INLET
HEIGHT
(B3)
INLET SIZE OUTLET SIZE
www.hotwater.com
Revised November 2012
AOSDG61020
PG 2 OF 4
Page 3
Commercial Gas Boilers
BOILER DATA
MODEL
NUMBER
GW-300
GW-400
GW-500
GW-650
GW-750
GW-1000
GW-1300
GW-1500
GW-1850
GW-2100
GW-2500
VERTICAL STORAGE VESSEL DATA
INCHES OR
CM
Inches 29-1/2 24 32
cm 74.9 61 81.3
Inches 35-3/4 24 32
cm 90.8 61 81.3
Inches 42 24 32
cm 106.7 61 81.3
Inches 51-3/8 24 32
cm 130.5 61 81.3
Inches 57-5/8 24 32
cm 146.4 61 81.3
Inches 47 31-3/4 42-1/2
cm 119.4 80.6 108
Inches 57-1/2 31-3/4 42-1/2
cm 146.1 80.6 108
Inches 64-1/2 31-3/4 42-1/2
cm 163.8 80.6 108
Inches 78-3/4 31-3/4 45-1/4
cm 200 80.6 114.9
Inches 85-1/2 31-3/4 45-1/4
cm 217.2 80.6 114.9
Inches 85-1/2 31-3/4 45-1/4
cm 217.2 80.6 114.9
LENGTH
(C2)
DIMENSIONS
WIDTH
(C1)
HEIGHT
(D)
Model to Specify:
GW T - 650 - AJH - 750 A - S
Indicates System
Confi guration
A = ASME Code
Tank Capacity
(Gallons Storage)
Tank Type (AJV = Vertical,
AJH = Horizontal)
Boiler BTU Size
T = System
Boiler Type
MODEL NUMBER INCHES OR CM
AJV-120
AJV-140
AJV-200
AJV-250
AJV-350
AJV-400
AJVT-500
AJV-500
AJV-750
AJV-1000
Inches 67-1/4 28 15 2 2
cm 170.8 71.1 38.1 5.1 5.1
Inches 88 30 19 2-1/2 2-1/2
cm 223.5 76.2 49.5 6.4 6.4
Inches 84 36 21 2-1/2 2-1/2
cm 213.4 91.4 53.3 6.4 6.4
Inches 97 36 21 2-1/2 2-1/2
cm 246.4 91.4 53.3 6.4 6.4
Inches 99 42 25-1/2 2-1/2 2-1/2
cm 251.5 106.7 57.2 6.4 6.4
Inches 106 42 22-1/2 2-1/2 2-1/2
cm 269.2 106.7 57.2 6.4 6.4
Inches 101 48 24 3 3
cm 256.5 121.9 61 7.6 7.6
Inches 86 54 25-1/2 3 3
cm 218.4 137.2 64.8 7.6 7.6
Inches 118 54 25-1/2 3 3
cm 299.7 137.2 64.8 7.6 7.6
Inches 118 54 25-1/2 3 3
cm 299.7 137.2 64.8 7.6 7.6
www.hotwater.com
Revised November 2012
HEIGHT (A) WIDTH (B1)
DIMENSIONS
INLET HEIGHT
(B2)
INLET SIZE OUTLET SIZE
AOSDG61020
PG 3 OF 4
Page 4
Confi guration H
Commercial Gas Boilers
Confi guration P
Confi guration S
Confi guration V
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 Genesis hot water supply boiler(s), with input of ______ BTU/H for ______ gas and recovery capacity of
______ gph, and the A. O. Smith glasslined (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 Genesis Boiler Specifi cations and Storage Tank Specifi cations in your A & E book. Hot water supply boiler(s) and storage tank(s) shall have a 5 year
limited warranty against corrosion as outlined in the written warranty.
NOTE: Custom arrangement also available. Consult factory.
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.
www.hotwater.com
Revised November 2012
AOSDG61020
PG 4 OF 4
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