Product Overview

© 2017 U.S. Boiler Company, Inc.
Lancaster, PA
Phone: [phone]
USBL17081 10m 9/17
www.usboiler.net
Aspen Light Commercial:
Technical Information
Aspen – Light Commercial Ratings & Specications
Model
Thermal
Efciency
%
Input
(MBH)
min-max
Gross
Output
(MBH)
Net AHRI
Rating
Water
(MBH)
MAWP
(PSI)
Vent
Size
(Inches)
Approx.
Shipping
Weight
(lbs.)
ASPN-320 95.0 32-320 304 264 80 4 270
ASPN-399 95.0 39.9-399 379 330 80 4 275
Standard Equipment
• Directvent,sealedcombustionappliance
• 10:1turndown
• Naturalgas;LPconversionkitssoldseparately
• Stainlesssteelheatexchanger,firetube
• Easyaccesscontrolpanel
• Separated,fusedhighandlowvoltageconnections
• Sage2.3ControlSystem
– LCD touch screen display
– Self-guided control menus
– Built-in self diagnostics
– (3) Circulator outputs available
– Built-in sequencer, stages up to (8) boilers
– Outdoor reset including outside sensor
– DHW priority
– Warm weather shutdown
– Modbus communications
– Password security
• Variablespeedcombustionblower
• Gasvalve
• Condensatetrapwithfloatswitch
• LWCO-readyelectricalconnection
• Supply,return,andautoresethighlimitwatersensors
• Universalventconnection(CPVC/PVC,PP,SS)
• Fluegastemperaturesensoranddifferentialpressureswitch
• 30PSIsafetyreliefvalve
• Pre-installedhangingbracketandwallmountkit
• Fieldadjustableforhighaltitudewithminimalderate
Safety Relief Valve Pressure, Water – 30 PSI std. ASME certified “H”. Max allowable temperature setting 210ºF. Target setpoint is 180°F,
manual reset high limit setpoint is 210°F. Boilers shipped set for natural gas. Above performance is for elevations to 2000’. Consult
Installation, Operating and Service Instructions for instructions and performance for installations up to 10,100’. Allowable vent lengths
up to 135 equivalent ft.
Typical Venting Congurations
(Horizontal and Vertical)
up to 135 eq. ft.
Horizontal 2-pipe
low profile
Horizontal 2-pipe
concentric
Illustrations are for representation only. For complete
venting information, please see Installation, Operating
and Service Instructions.
Vertical 2-pipe
Vertical 2-pipe
concentric
Horizontal 2-pipe
Hybrid
Vertical exhaust/
sealed B-vent for
combustion air
Accessories:
• LPConversionKits  
(320 P/N: 108015-01, 399 P/N: 108015-02)
• CSD-1kit(P/N:108183-01)
• SageZoneControl
– Circulator Panel (P/N: 104590-01)
– Valve Panel (P/N: 104589-01)
• LWCOkit
– Auto reset (P/N: 105591-01)
– Manual reset (P/N: 108182-01)
• Servicepartskit(P/N:108033-01)
• Kit,CPVCstarterandPVCventterminations:
(4” P/N: 107039-03)
Control
Access Panel
45.28”
Gas
Connection
(3/4”)
Service Access Panel
Outside
of Wall
Inside
of Wall
23”
22.4”
Vent
Connection
Air Intake
Connection
Supply/Outlet
Water Connection
(1/1/2”)
Return/Inlet
Water Connection
(1-1/2”)
Floor Standing
Wall Mounted
A
S
M
E
H
PLUS polypropylene & stainless steel
chimney chase options
C