Gas Fired, Chimney Vented, Cast Iron Water Boiler...Series 3 Gas Fired, Chimney Vented, Cast Iron...
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Series 3 ™ Gas Fired, Chimney Vented, Cast Iron Water Boiler • 84% AFUE • Electronic ignition • Equipped with IQ Control System™ • 70 – 280 MBH (7 sizes) • Industry standard tapping locations, allows easy, direct replacement for thousands of existing boiler installations • Solid, reliable, American-made cast iron heat exchanger, designed to promote turbulent water flow within the section for efficient heat transfer • Lifetime limited warranty • Consists of the Intelligent Hydronic Control and IQ Option Panel Intelligent Hydronic Control • Intuitive self-diagnostics • Combines high limit, relay, and ignition functions into a single module • Two customizable integrated switching relays for easy addition of additional heating zone or indirect water heater • Energy saving “thermal purge”, which works by circulating residual warm water (140° or above) in the heating system before firing the boiler IQ Option Panel • Enables the easy plug & play installation of optional features such as outdoor reset, LWCO, and high limit Optional Touchscreen • LCD displays all boiler settings, diagnostics, and troubleshooting in sentences, not codes control system ANYWHERE UNMATCHED ANYWHERE UNMATCHED ANYWHERE UNMATCHED ANYWHERE UNMATCHED
Transcript of Gas Fired, Chimney Vented, Cast Iron Water Boiler...Series 3 Gas Fired, Chimney Vented, Cast Iron...
Series 3™
Gas Fired, Chimney Vented,Cast Iron Water Boiler
• 84%AFUE
• Electronicignition
• EquippedwithIQControlSystem™
• 70–280MBH(7sizes)
• Industrystandardtappinglocations,allows easy,directreplacementforthousandsof existingboilerinstallations
• Solid,reliable,American-madecastironheat exchanger,designedtopromoteturbulentwater flowwithinthesectionforefficientheattransfer
• Lifetimelimitedwarranty
• ConsistsoftheIntelligentHydronicControland IQOptionPanel
Intelligent Hydronic Control• Intuitiveself-diagnostics
• Combineshighlimit,relay,andignitionfunctionsintoasinglemodule
• Twocustomizableintegratedswitchingrelaysforeasyadditionofadditionalheatingzoneorindirectwaterheater
• Energysaving“thermalpurge”,whichworksbycirculatingresidualwarmwater(140°orabove)intheheatingsystembeforefiringtheboiler
IQ Option Panel• Enablestheeasyplug&playinstallationofoptionalfeaturessuchasoutdoorreset,LWCO,andhighlimit
Optional Touchscreen• LCDdisplaysallboilersettings,diagnostics,andtroubleshootinginsentences,notcodes
boilercontrol
optionpanel
optioncard
controlsystem
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©2018U.S.BoilerCompany,Inc.-Lancaster,PAPhone:1-888-432-8887
PrintedintheU.S.A.FormNo.USBL10031-15ms11/15 www.usboiler.net
Series 3 Dimensions & Connections
Model
Dimensions (inches) Connections (inches) WaterContent (gal.)Width Height Depth Supply Return
Gas Valve
Relief Valve
303 12-3/4 41 33 1-1/4 1-1/4 1/2 3/4 2304 15-1/2 41 33 1-1/4 1-1/4 1/2 3/4 3305 18-1/2 41 33 1-1/4 1-1/4 1/2 3/4 4306 21-1/2 41 33 1-1/4 1-1/4 1/2 3/4 5307 24-3/4 41 33 1-1/4 1-1/4 3/4 3/4 6308 27-3/4 41 33 1-1/4 1-1/4 3/4 3/4 7309 30-3/4 41 33 1-1/4 1-1/4 3/4 3/4 8
*Addsuffix“N”fornaturalgas,orsuffix“P”forLPgasmodels Allmodelscertifiedforusefromsealevelto10,000feetinelevation.Outputsarereducedby4%per1,000feet abovesealevelforelevationsabove2,000ft. AllSeries3boilersareshippedwith30psireliefvalves,MAWPis50psi.
64”
FLOORLINE
23”**
41”
4” “W” 1”
40”FLUE
34”ELECTRICAL
27”SUPPLY
18”GAS
15”RETURN
FLOORLINE0”
0” 13” 24”29”31”
4”
43”
6”
VENTILATION AIR INLET OPENINGS***
12” MAX
12” MAX
6” MIN*
NOTES:CAUTION: Chimney liner may be required by code requirements* Minimalradialdistancearoundventpipeandbreeching** Addheightrequiredtomaintain6”clearancefromallbreechingcomponents***Areaofeachopening1sq.inchforeach1,000BTUHinput-withminimumof100sq.inches.Heightofopeningshouldbehalfthewidth.
Series 3: Technical InformationStandard Equipment • Insulatedsleek,modernjacket• Integrateddraftdiverter,damperandconnectorincluded• Heavygauge1”and1-1/2”baseinsulation• IntelligentHydronicControl–Simpleself-diagnostic controlsystemwith3-digitreadoutforstatussettings anderrors• IQOptionPanel,acceptsplug&playIQOptionCardsfor –OutdoorresetwithDHWpriority –Autoormanualresetlowwatercutoff –Autoauxilliaryhighlimit• Step-openingredundantgasvalve• Sparkignitionwithcontinuousretry• User-friendlywiringwith120VJ-box• Circulatorwithpipingwithwiringharness• Castironsectionassembly• Resettableblockedventswitch• Boilerdrainvalve• Castironsupplymanifoldwithsafetyreliefvalvetapping
ASM
E
H
IQ insidewith controlsystem
TM
Series 3 Ratings & Specifications
Model Input
(MBH)
DOE HeatingCapacity(MBH)
Net AHRI Rating, Water(MBH) AFUE%
Vent Size(Inches)
Approx. Shipping Weight. (lbs.)
303 70 59 51 84.0 4 254304 105 88 77 84.0 5 301305 140 117 102 84.0 6 353306 175 146 127 84.0 6 405307 210 176 153 84.0 7 464308 245 205 178 84.0 7 514309 280 234 203 84.0 8 564
