High Efficiency Gas Fired, Stainless Steel, Condensing Water Boiler

VALUE-PRICED WITH PREMIUM FEATURES

NEW!Upto95%AFUE

Reliable,provenstainlesssteelheatexchanger

Factorypre-setSage2.2ControlSystem, providingout-of-the-boxhighperformance controlcapabilities

Touchscreendiagnosticdisplaywith plain-languageguidance

Exclusivefeaturesforinstallerconvenience andhomeownerdependability

Highaltitudezeroorminimalde-ratings, reducesthecostsofoversizing,fieldadjustable

FREE5-yearparts&limitedlabor warrantyincluded REGISTRATION REQUIRED WITHIN 90 DAYS OF INSTALLATION

EXTRA BUILT-IN FEATURES

Highcapacitypre-installedboilerloopcirculator

Split-voltagejunctionbox

Universalexhaustterminationforpolypropylene andPVC

Outdoorresetandsensor

ANYWHEREUNMATCHED

ANYWHEREUNMATCHED

Combi Kit Now Available! See page 3 and back page for detailsBOILER SYSTEM

K2 ItsthecondensingboilerthatyouvebeenaskingforSAVES TIME! IntelligentSage2.2BoilerControlSystem

Factorypre-setsofferout-of-the-box performance

Highresolutiontouchscreendisplaywith step-by-stepsetupguidanceanddiagnostics

Designedforeaseofinstallation&service

Hingedcontroldoorisolateselectronics Fastandeasyaccesstocombustion chamber

Coldburnerdoorspeedsservicestart

Integral,easyaccessjunctionboxincluded withseparatehighvoltageandfused,low voltagecommunicationboards

Easyclean-outcondensatetrap

Sideaccesspanel

Universalventtermination (polypropyleneandPVC)

SAVES MONEY! Pre-installedpremiumboilerloopcirculator eliminatespumpselectionandexpense

Contractors told us exactly what they wanted.Avalue-priced,highefficiencycondensingboilerthatissimpleenough

toinstallquicklyANDoffersvaluableextrasnotfoundoncompetitivemodels.U.S.BoilerCompanyhasdelivered.The

K2offersacomprehensivefeaturelist,unequalledeaseofsetup,maintenance,andoperationinapackagethatcostsfar

lessthanyoudexpectfortheimpressivevaluethatsbuiltin.Andbestofall,itsbuiltandtestedwithprideinLancaster,

PennsylvaniabyU.S.BoilerCompany.

Display product shown. Interior of junction box is visible for illustration purposes only.

HOMEOWNER VALUE! Stainlesssteelheatexchangerofferslong-term reliability

Field-provenperformance

Nowelds,reducingpotentialcorrosionpoints

Highefficiency,highperformance,highcomfort

Upto95%AFUE

5:1turndownlowersfueluse

Veryquietoperation-negativepressuredesign

Coldburnerdoordesignrecoversheatfor addedenergysavings

Attractive,reinforced16and22-gaugesteel construction

Advancedsystemtestingcarefullyverifiesthe performanceeveryK2boilerbeforeitleavesour factory

Worry-freeinstallation,verifiedoperation

FREE5-yearparts&laborextendedwarranty included.REGISTRATION REQUIRED WITHIN 90 DAYS OF INSTALLATION

Pre-installedhighcapacitypumpoptimizeswaterflowtoensureproperboileroperation.Sidepanelaccess.

Highresolutiontouchscreendisplayoffersstep-by-stepassistanceinsetupandtroubleshootingusingtextandintuitivemenus,notcodes.

Display product shown. Interior of junction box is visible for illustration purposes only.

FastPipe,optionalready-madeprimary/secondarypipingsolutionsavesinstallationtimeandcost.

K2InstantCombiKit,afastandeasyoption,addsdomestichotwatercapability.IncludesmixingvalveandFastPipe.

2015U.S.BoilerCompany,Inc.Lancaster,PAPhone:1-888-432-8887FormNo.USBL140617.5m5/15

www.usboiler.net

K2: Technical Information ASMEHK2 Ratings & Specifications

Model AFUE%

Input(MBH)

min-max

DOE HeatingCapacity(MBH)

Net AHRI

(MBH)

DHW Rate*(GPM)

Vent Size

(Inches)

Approx. Shipping Weight. (lbs.)

K2-080 94 16-80 74 64 N/A 2or3 149K2-100 93 20-100 92 80 N/A 2or3 158K2-120 94 24-120 111 97 N/A 3 162K2-150 95 30-150 141 123 3.7 3 188

K2-180 94 36-180 167 145 4.4 3 188

Standard Equipment Directvent,sealedcombustionappliance NaturalorLPgas Easyaccesscontrolpanel Separatedhighandlowvoltagejunctionbox Sage2.2ControlSystem LCDtouchscreendisplay Self-guidedcontrolmenus 100+helpscreens Built-inselfdiagnostics (2)additionalcirculatoroutputsavailable Built-insequencer,stagesupto(8)boilers Outdoorresetincludingoutsidesensor DHWpriority Warmweathershutdown Variablespeedcombustionblower Pre-installedboilerloopcirculator Gasvalve Stainlesssteelheatexchanger Polypropylenecondensatetrap Flowswitch Supply,return,andautoresethighlimitwatersensors Universalexhaustventtermination Fluegastemperaturesensoranddifferentialpressureswitch Waterandgasconnectionsonbottomofboiler Pre-installedhangingbracketandwallmountkit Fieldadjustableforhighaltitude

K2 Dimensions (Inches)Model A* B C

K2-080 16-3/16 2-31/32 7-13/32

K2-100 16-3/16 2-31/32 7-7/16

K2-120 16-3/16 2-31/32 7-7/16

K2-150 20-3/16 4-7/16 8-25/32

K2-180 20-3/16 4-7/16 8-25/32

17

29

Air Intake

Vent

Access Panel

3-9/164-3/4

5-1/16

A A

1 NPT Supply

C

B

1 NPT Return

7-3/164-1/8

10-5/16 1-15/16

1-13/16

3/4 Gas Line

Condensate Trap Outlet

Left Front Right

Top

Bottom

6

*Opencontroldoorextendsdimensionadditional15

SafetyReliefValvePressure,Water30PSIstd.ASMEcertifiedH.MaximumAllowableWorkingPressureat50PSI,Maxallowabletemperaturesetting210F.Targetsetpointis195F,automaticresethighlimitsetpointis210F.Boilersshippedsetfornaturalgas.Aboveperformanceisforelevationsto2000.Consultmanualforinstructionsandperformanceforinstallationsupto10,000.

Typical Venting Configurations (Horizontal and Vertical)

Horizontal2-pipelowprofile

Horizontal2-pipeconcentric

Illustrationsareforrepresentationonly.Forcompleteventinginformation,pleaseseeK2Installationmanual.

Vertical2-pipe

Vertical2-pipeconcentric

Horizontal2-pipe

Hybrid

Verticalexhaust/sealedB-ventforcombustionair

*Foroptionalcombi-equppedmodelsonly,GPM@70TR

Optional Equipment:K2 Boiler System LWCOkit(P/N:105591-01) DHWcombimoduleP/N: 150,180MBH(106341-01) FastPipeprimary/secondaryadapterPN: 80-120MBH(106259-01) 150,180MBH(106259-02) SageZoneControl(P/N:104590-01) Wirelessoutdoorresetadapter(PN:105121-01) Servicepartsrepairkit(P/N:106260-01)

For more information on the K2 Boiler System please visit www.k2boiler.com

BOILER SYSTEM

NOTE:Combikitextends13belowboiler,withallconnectionsonleftside