X-2 Submittal

© 2020 U.S. Boiler Company, Inc. - Lancaster, PA
Phone: [phone]
Printed in the U.S.A.
Form No. USBL15092-10ms 3/20
www.usboiler.net
X-2 Dimensions & Connections
Model
Width
“W”
(inches)
Connections (inches)
Water
Content
(gal.)Supply Return
Gas
Valve
Relief
Valve
X-202 14 1-1/4 1-1/4 1/2 3/4 1
X-203 14 1-1/4 1-1/4 1/2 3/4 2
X-204 16 1-1/4 1-1/4 1/2 3/4 3
X-205 19 1-1/4 1-1/4 1/2 3/4 4
X-206 22 1-1/4 1-1/4 1/2 3/4 5
X-207 25 1-1/4 1-1/4 3/4 3/4 6
X-208 28 1-1/4 1-1/4 3/4 3/4 7
X-209 31 1-1/4 1-1/4 3/4 3/4 8
* Add suffix “N” for natural gas, or suffix “L” for LP gas models
All models certified for use from sea level to 10,000 feet in elevation. Outputs are reduced by 4% per 1,000 feet
above sea level for elevations above 2,000 ft.
All X-2 boilers are shipped with 30 psi relief valves, MAWP is 50 psi.
NOTES:
1. Minimal radial distance around vent pipe and breeching
for single-wall metal pipe vent connector, otherwise follow
vent connector manufacturer’s recommended clearances.
2. Add height required to maintain 6” clearance from all
breeching components.
X-2: Technical Information
Standard Equipment
• Intelligent Hydronic Control; simple self-diagnostic
control system with 3-digit readout for status settings
and errors
• Pre-installed IDL-1200 integral LWCO with auto reset
(H-model suffix)
• Insulated steel jacket
• Integrated draft diverter, damper and connector included
• Heavy gauge 1” base insulation
• Step-opening redundant gas valve
• Spark ignition with continuous retry
• User-friendly wiring with 120V J-box
• Circulator – choice of Taco or Grundfos
• Cast iron section assembly
• Resettable blocked vent switch
• Boiler drain valve
• Cast iron supply manifold with safety relief valve tapping
A
S
M
E
H
Supply
Electrical
Gas
Return
Floor Line
6” Min (see Note 1)
13”
25”
31”
0”
35”
6”
0”
16”
18”
24”
27”
40”
63”
Floor Line
23” (see Note 2)
40”
4”
W
1”
26-3/4”
33-1/4”
Supply
Electrical
Gas
Return
Floor Line
6” Min (see Note 1)
13”
25”
31”
0”
35”
6”
0”
16”
18”
24”
27”
40”
63”
Floor Line
23” (see Note 2)
40”
4”
W
1”
26-3/4”
33-1/4”
X-2 Ratings & Specications
Model
Input
(MBH)
DOE
Heating
Capacity
(MBH)
Net AHRI
Rating,
Water
(MBH) AFUE%
Vent Size
(Inches)
Approx.
Shipping
Weight.
(lbs.)
X-202 38 32 28 84.0 4 202
X-203 70 59 51 84.0 4 254
X-204 105 88 77 84.0 5 304
X-205 140 117 102 84.0 6 357
X-206 175 146 127 84.0 6 405
X-207 210 176 153 84.0 7 462
X-208 245 205 178 84.0 7 518
X-209 280 234 203 84.0 8 564