Brochure

37
XB Model Boilers
Precise temperature control and
accurate load matching results in
smooth system operation
BOILERS
Direct Vent Flexibility
 Direct vent up to 100 equivalent feet of pipe
 Sidewall or vertical
 Lower installation cost with approved CPVC/PVC venting material – uses CPVC
for first 10 feet and PVC thereafter.
 Approved for use with UL approved AL29-4C
®
stainless steel venting materials
Factory Start-Up Included
 Required for activating warranty and assuring maximum operating
performance. Contact your local sales representative or Authorized
Start-Up Agent to arrange a FREE certified start-up.
Category IV Listed
 Approved for use with CPVC/PVC venting material – uses CPVC for
first 10 feet then PVC thereafter or a UL approved AL 29-4C Stainless
Steel venting material
Professional Start-Up Service Included
 Assures optimum performance for each installation
Meets the Thermal Efficiency Requirements of the U.S.
Department of Energy and Current Edition ASHRAE/IESNA 90.1
10-Year Heat Exchanger Warranty

For complete information, consult written warranty or contact A. O. Smith
Other XP Boiler Features:
 93% thermal efficiency (AHRI certified)
 Certified to ANSI Z21.13-CSA 4.9
 Honeywell sola control with color touch screen LCD display
· Inlet/outlet and remote loop 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
· Outdoor temperature sensor included
 20:1 turndown models 2 million btuh
and up, 10:1 turndown 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
 316L Stainless steel heat exchanger
 ASME 160# working pressure
 ASME rated pressure relief valve – 50 PSI
XP Boiler Options:
 Factory-mounted secondary pump
(recommended for primary/secondary
piping systems)
 Condensate neutralization kit
 Vent termination kits
 Skid mounted systems
XXBB MMOODDEELLSS -- FFLLOOWW,, HHEEAADD AANNDD TTEEMMPPEERRAATTUURREE RRIISSEE
Models
Input
(Btu/hr)
Output
(Btu/hr)
Water
Flow
Temperature Rise - ΔT °F
Flow Rate
20 30 40 Maximum Minimum
XB-1000 920,000 855,600
GPM 86 57 43 86 43
LPM 324 216 162 324 162
ΔP FT
26 12 7 26 7
ΔP M
7.9 3.7 2.1 8 2.1
XB-1300 1,300,000 1,209,000
GPM 121 81 60 121 60
LPM 458 305 229 458 229
ΔP FT
32.5 15 8 32.5 8
ΔP M
9.9 4.6 2.4 9.9 2.4
XB-1700 1,700,000 1,581,000
GPM 158 105 79 158 79
LPM 598 399 299 598 299
ΔP FT
35 14 8 35 8
ΔP M
10.7 4.3 2.4 10.7 2.4
XB-2000 1,999,900 1,859,907
GPM 186 124 93 186 93
LPM 704 469 352 704 352
ΔP FT
26 12 7 26 7
ΔP M
7.9 3.7 2.1 7.9 2.1
XB-2600 2,600,000 2,418,000
GPM 242 161 121 242 121
LPM 915 610 458 915 458
ΔP FT
32.5 15 8 33 8
ΔP M
9.9 4.6 2.4 9.9 2.4
XB-3400 3,400,000 3,162,000
GPM 316 211 158 316 158
LPM 1197 798 598 1197 598
ΔP FT
35 14 8 35 8
ΔP M
10.7 4.3 2.4 11 2.4
AOSCA80000 R Oct 2011 Com Catalog:108078_ResidentialFul#7A635.qxd 10/28/11 5:52 PM Page 37