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Hot Water Supply Systems
The "TOTAL SYSTEM" Concept - We have taken our highly
efficient equipment and created a convenient package; a
complete domestic hot water system.
Simplifies Installation - The installer simply connects the flue
gas, electric supply, cold water make-up, and hot water supply
(Building return loops connect to cold water make-up.)
Eliminates Costly Field Errors - These complete hot water
systems are factory-engineered and assembled to assure
proper pipe, pump and wire sizing. Systems are pre-piped and
wired to guarantee maximum system efficiency.
Factory Tested - Each Ac-U-Temp system is hydrostatic and
fire tested before shipping from the factory.
Ac-U-Temp Storage Tanks - Each Ac-U-Temp storage tank is
especially designed with tank opening locations, that provide
maximum tank draw efficiency and eliminate any unnecessary
piping and connections. Standard Ac-U-Temp tanks are factory
jacketed and insulated (Bare tanks to be insulated by others are
also available.) The Ac-U-Tanks are factory standard with the
same superior glass lining that has set new standards for the
tank industry. Standard tank capacities range from 80 gallons
to 1,000 gallons (Custom tanks to 10,000 gallons are available).
Built tough with maximum efficiency
Multi-Tank Systems - For applications with low ceiling heights
or unique installation challenges.
Other Features - ASME Temperatures and Pressure Relief
Valve 125# - Tank Temperature Sensor- Tank ThermometerIsolation Valves (Reliable Ball Valves) - Superior I-Beam Skid
- 125 psi Tank Construction - CI Bronze Fitted Pump.
Options - All Bronze Circulating Pump - Sequencing Control
Panel (For Multi-Boiler systems) - 150 and 160 psi Tank
Construction - 11" x 15" Manholes- Cement and Epoxy Tanks
Linings.
Custom Ac-U-Temp Systems - All Ac-U-Temp Systems are
Built to order, and can be precisely designed to specifically meet
your specifications. Many combinations of boilers and tanks are
available. Consult your local A.O. Smith Representative for
factory assistance.
Multi-Boiler Systems - High recovery systems that can meet
any hot water demand. Systems can be designed to provide 50
to 100% back-up. Boilers can be on & off fired, or sequenced to
meet changing system demands. Sequenced multi-boiler
systems that employ relatively small storage tanks are ideal for
applications with constant, yet fluctuating hot water demands.
Optional Dual Energy Source Capability - Ac-U-Temp storage
tanks can be specified with heat exchangers; allows winter/
summer heating boiler operation. Both, water to water, or steam
to water exchangers are available in both single and double wall.
Complete control packages can be factory installed.
Electric Back-up - Heavy - duty electric water heater elements
and controls can be specified for up to 3,000 KW; 100% electric
back-up. Provides hot water even during natural gas curtailments.
LIMITED WARRANTY OUTLINE
If the heat exchanger modules should fail within 5 years,
under the terms of the warranty, A.O. Smith will furnish
a replacement part; installation, labor, handling and local
delivery extra. If the tank should leak any time during the
first 5 years, under terms of the warranty, A.O. Smith will
repair or replace the tank; installation, labor, handling
and local delivery extra. THIS OUTLINE IS NOT THE
WARRANTY. For complete information, consult the
boiler and tank warranties or A.O Smith Water Products
Company.
June 2007R
Revised June 2001 (Reviewed July 2003) A 010.7
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CONFIGURATION V
A 010.8
CONFIGURATION H
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CONFIGURATION S
CONFIGURATION P
CONTACT FACTORY FOR APPROPRIATE BOILER/TANK COMBINATION
A 010.9
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Model to Specify: DWT - 1210 - AJH - 1000A - P
Indicates System Configuration
A = ASME Code
Tank Capacity (Gallons Storage)
Tank Type (AJV = Vertical, AJH = Horizontal)
Boiler BTU Size
T = System
Boiler Type
BOILER DATA
DW-720 DW-840 DW-960 DW-1080 DW-1210 DW-1350 DW-1480 DW-1610 DW-1810
LENGTH (C2) 46 1/2 52 1/2 57 3/4 53 58 1/2 64 1/2 39 1/2 75 82 1/2
WIDTH (C1) 30 30 30 32 3/4 32 3/4 32 3/4 34 34 34
HEIGHT (D) 56 3/4 56 3/4 56 3/4 60 60 60 62 1/2 62 1/2 62 1/2
INLET SIZE 2 2 2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
GAS INLET 1 1/4 1 1/4 1 1/4 1 1/4 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
VERTICAL VESSEL DATA
AJV-80 AJV-120 AJV-140 AJV-200 AJV-250 AJV-350 AJV-400 AJV-500T AJV-500 AJV-750 AJV-1000
HEIGHT (A) 54.25 67.25 88 84 97 99 106 101 86 118 150
WIDTH (B1) 28 28 30 36 36 42 42 48 54 54 54
INLET HEIGHT (B2) 15 15 19 1/2 21 21 22 1/2 22 1/2 24 25 1/2 25 1/2 25 1/2
INLET SIZE 2 2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 3 3 3 3
OUTLET SIZE 2 2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 3 3 3 3
HORIZONTAL VESSEL DATA
AJH 200 AJH 350 AJH 400 AJHT 500 AJH 500 AJH750 AJH 1000
LENGTH (A1) 77 93 99 94 79 111 143
OUTLET DIM (A2) 18 19.5 19.5 21 22.5 22.5 22.5
WIDTH (B1) 36 42 42 48 54 54 54
HEIGHT (B2) 16 15.5 15.5 16 16.5 16.5 16.5
INLET HEIGHT (B3) 21 24 24 27 30 30 30
INLET SIZE 2 1/2 2 1/2 2 1/2 3 3 3 3
OUTLET SIZE 2 1/2 2 1/2 2 1/2 3 3 3 3
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 copper heat exchanger type hot water supply boiler(s), with
input of _______ BTU/H for _______ 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 Dura-Max Boiler specifications A & E Page # A 010.0.
See A.O.Smith Storage Specifications A & E Page #'s A 412.0 & A 416.0.
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.
A.O. Smith Water Products Co., Inc. On Line
A.O. Smith Water Products Co., Inc. On Line
www.aosmithwaterheaters.com
www.hotwater.com
For Technical Information and
Automated Fax Service,
Phone: 800-527-1953
A Division of A.O. Smith Corporation
A.O. Smith Corporation reserves the right to make product changes or
improvements at any time without notice.
A.O.Smith
Water Products Company
Ashland City, TN
A 010.10 © A. O. SMITH CORP. 1999 Printed in the U.S.A.
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