Automatic Circulating Water Heaters
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XWH-1000 |
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through |
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XWH-3400 |
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FEATURES |
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The ENERGY STAR® Qualified A. O. Smith high efficiency condensing XP Water Heater utilizes a |
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state-of-the-art heat exchanger and control technology to provide large volumes of hot water for |
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demanding commercial and industrial potable hot water applications. The all stainless steel water tube |
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heat exchanger construction allows the XP Water Heater to operate in a continuous condensing mode |
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while maximizing longevity and delivering thermal efficiencies as high as 99% when operating in low |
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temperature applications. |
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A unique multi-burner design is control sequenced and modulated to produce turndown rates of |
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up to 20:1. Precise temperature control and accurate load matching produce smooth system |
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operation and eliminates wasteful short cycling and temperature overshooting. |
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ADVANCED MULTI-BURNER, LOW NOx COMBUSTION TECHNOLOGY |
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Venturi-mixing gas/air ratio system - works with variable speed blower to precisely mix gas |
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and air throughout firing range |
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Fully modulating capability prevents energy-stealing short cycling and provides smooth |
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system operation with higher overall system efficiencies |
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LOW NOx OPERATION |
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Complies with SCAQMD Rule 1146.2 for XWH1000 through XWH2000 and Rule 1146.1 for |
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XWH2600 and XWH3400, and other air quality management districts with similar |
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requirements for low NOx emissions |
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ADVANCED SOLA CONTROL |
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Large touch screen user interface |
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Factory standard with MODBUS protocol connections |
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The latest in energy saving algorithms |
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Includes remote tank temperature control to adjust tank temperature at the water heater - |
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modulates the water heater to maintain tank set point temperature within +/-1 degree |
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Water heater output control features 20:1 turndown ratio on models 2 million btuh and up, |
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10:1 turndown ratio on models 1.7 million btuh and down |
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ALL-BRONZE FACTORY-MOUNTED PUMP(S) |
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Integrally mounted, wired, and controlled by the water heater control |
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Factory-sized for proper flow between water heater and storage tank |
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Allows 50 equivalent feet of piping between water heater and tank |
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MULTI-PASS/MULTI-BURNER CONDENSING STAINLESS STEEL HEAT EXCHANGER |
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Utilizes leading-edge multi-pass water tube heat exchanger to maximize heat transfer |
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Designed for fully condensing operation throughout the heating range |
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All heating surfaces are 316L stainless steel to provide a long and trouble-free service life |
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Saves both fuel and operating cost with every heating cycle |
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Impervious to thermal shock |
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DIRECT VENT FLEXIBILITY |
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Direct vent up to 100 equivalent feet of pipe |
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Sidewall or vertical |
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H |
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Lower installation cost with approved CPVC/PVC venting material – uses CPVC for first |
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10 feet and PVC thereafter. |
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Approved for use with UL approved AL29-4C® stainless steel venting materials |
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FACTORY START-UP INCLUDED |
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Required for activating warranty and assuring maximum operating performance. Contact your |
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local sales representative or Authorized Start-Up Agent to arrange a FREE certified start-up. |
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Please note: The XP water heater models XWH -1000 thru 3400 are certified to the ANSI Z21.10.3-CSA 4.3 water heater standard. These models are approved for potable water heating applications only and cannot be used in closed loop space/hydronic heating applications. For closed loop hydronic heating applications use XP Boiler models XB-1000 thru 3400 that are certified to the ANSI Z21.13-CSA 4.9 boiler standard and are approved hydronic heating applications.
Page 1 of 6
AOSBD25000
Automatic Circulating Water Heaters
MEETS THE THERMAL EFFICIENCY REQUIREMENTS OF THE U. S. DEPARTMENT
OF ENERGY AND CURRENT EDITION ASHRAE/IESNA 90.1
UP TO 96% THERMAL EFFICIENCY (AHRI CERTIFIED)
5-YEAR HEAT EXCHANGER WARRANTY
For complete information, consult written warranty or contact A. O. Smith
OTHER XP FEATURES:
CSA certified to the ANSI Z21.10.3-CSA 4.3 water heater standard
Honeywell sola control with color touch screen LCD display
·Inlet/outlet and remote tank temperature display
·Onboard Modbus communications
·Logs faults, run time, cycles
·Redundant flow and low water protection - factory installed LWCO and flow switch(s)
·Multi-burner sequencing models 2 million btuh and up have 4 burners; models 1.7 million btuh and down have 2 burners
·Redundant ignition controls – should one burner fail remaining burners continue to heat
·Alarm buzzer
·Remote tank temperature sensor included
20:1 turndown ratio on models 2 million btuh and up, 10:1 turndown ratio on models 1.7 million btuh and down
Horizontal and vertical direct and sidewall vent options up to 100 equivalent feet of piping
Approved for CPVC/PVC plastic vent materials Meets ASME CSD-1/GE gap codes – factory standard Direct spark ignition
Factory-installed electrical disconnect All bronze factory-mounted pump(s) 316L stainless steel heat exchanger ASME 160# working pressure
ASME rated pressure relief valve – 125 PSI
XP OPTIONS:
ASME HLW stamped heat exchanger(s)
Condensate neutralization kit
Vent termination kits
Skid mounted systems
RECOVERY CAPACITIES
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Input |
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Temperature Rise - °F (°C) |
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Water |
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Models |
Rating |
40 |
60 |
70 |
80 |
90 |
100 |
120 |
140 |
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Flow |
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(Btu/hr) |
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(22) |
(33) |
(39) |
(44) |
(50) |
(56) |
(67) |
(78) |
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XWH-1000 |
920,000 |
GPH |
2,662 |
1,775 |
1,521 |
1,331 |
1,183 |
1,065 |
887 |
761 |
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LPH |
10,078 |
6,719 |
5,759 |
5,039 |
4,479 |
4,031 |
3,359 |
2,880 |
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XWH-1300 |
1,300,000 |
GPH |
3,742 |
2,495 |
2,139 |
1,871 |
1,663 |
1,497 |
1,247 |
1,069 |
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LPH |
14,167 |
9,444 |
8,095 |
7,083 |
6,296 |
5,667 |
4,722 |
4,048 |
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XWH-1700 |
1,700,000 |
GPH |
4,904 |
3,269 |
2,802 |
2,452 |
2,180 |
1,962 |
1,635 |
1,401 |
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LPH |
18,565 |
12,376 |
10,608 |
9,282 |
8,251 |
7,426 |
6,188 |
5,304 |
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XWH-2000 |
1,999,900 |
GPH |
5,794 |
3,862 |
3,311 |
2,897 |
2,575 |
2,317 |
1,931 |
1,655 |
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LPH |
21,931 |
14,621 |
12,532 |
10,966 |
9,747 |
8,773 |
7,310 |
6,266 |
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XWH-2600 |
2,600,000 |
GPH |
7,501 |
5,000 |
4,286 |
3,750 |
3,334 |
3,000 |
2,500 |
2,143 |
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LPH |
28,393 |
18,929 |
16,225 |
14,196 |
12,619 |
11,357 |
9,464 |
8,112 |
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XWH-3400 |
3,400,000 |
GPH |
9,891 |
6,594 |
5,652 |
4,945 |
4,396 |
3,956 |
3,297 |
2,826 |
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LPH |
37,441 |
24,961 |
21,395 |
18,721 |
16,641 |
14,976 |
12,480 |
10,697 |
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A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
Page 2 of 6
www.hotwater.com |
AOSBD25000 |
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