Advanced Heating& Hot Water Systems

Mod Con Stainless Steel Commercial Boiler

An Intelligent Design that Delivers Highly Efficient Hydronic Heating with 94% Thermal Efficiency

HTP Made In Am

erica • HTP Made In A

mer

ic

a • HTP Made In A

merica • HTP Made In

Am

eric

a •

SCAQMD Rule 1146.2

Heat Exchanger Bears the ASME “H” Stamp

• SuperiorCondensateCollectionSystem(PatentPending)Easytoservicewithoverflowprotection

• PVC–CPVC–StainlessSteelVenting

• Ventsup200feetcombined• DoubleStackunitsfordoubletheoutputinsmallfootprint

• AdjustableLegs• DirectVentSealedCombustion

• ModelsavailableforNaturalorLPGas

• Easyaccesstowiringandfieldserviceofcombustionheatexchanger

• Zeroclearancetocombustibles

• Lowwatercutoffstandardequipment

• Highlimitmanualreset•Removablefrontcoverallowseasyaccesstoburnerassembly

•Zeroclearancetoallcombustiblesurfaces.

•FactoryinstalledAGA/ASMEratedreliefvalve.

• PCmonitoringforhistory–systemoperation(optional)

•Selfdiagnosticelectroniccontrolwithdigitalreadouttomonitorsystemparameters.

• SystemSensor(Part#7250P-324)• IndirectSensor(Part#7250P-325)• 4”StainlessSteelOutsideTerminationVentKit(V2000)• 6”StainlessSteelOutsideTerminationVentKit(V3000)• HighandLowGasPressureSwitchKitwithManualReset(Part#7350P-600)

• U.L.353CompliantLowWaterCut-OffInterfaceKitwithManualReset(Part#7350P-601)

• AlarmSystem(Part#7350P-602)(tomonitoranyfailure)

• StackingKit(Part#7350P-603)• PCInterfaceCable(Part#7250P-320)• BoilerCasterKit(Part#7350P-604)• ModConCondensateNeutralizer(Part#7350P-611)• FlowSwitchKit(Part#7350P-605ModCon500/850,Part#7350P-606ModCon300)

Combustion System• 94%ThermalEfficiency• ModulatingBurnerwith5to1turndown

• WhisperQuietOperation• LowNOxOperation• HighGradeInconelBurner

• ReliableSparkIgnition• GasValve(TestedtoUL,FM,CSAStandards)

Heat Exchanger• AllStainlessSteelConstruction

• NoGaskets,WeldedConstruction.ASMEApproved

• 150PSIReliefRated• EasytoService

Integrated Control System• Built-insequencerforupto8boilers

• DigitaldisplaywithLEDstatusindicators

• IntegratedControlallowsonlytheamountofheatedenergyrequired.

• OutdoorsensingwithIndirectpriority,allowsforgreaterenergysavingsandcomfort

• BuiltinLowwatercutoffwithadditionalmanualresethighlimitswitch

• MultiplePumpoutputs–BoilerPump–SystemPump–IndirectPump

• 24voltmonitorforsystemsafeties• Dualflamesensing(Flameprobe/SparkIgnitionProbe)

MOD CON Additional Features MOD CON Optional Equipment

MOD CON Construction FeaturesStainless Steel Heat Exchanger

Stainless SteelHeat Exchanger

Outlet Nipple

Inlet Nipple

CombustionBlower

GasValve

Pressure Relief Valve

CondensateCollection

System

Manual ResetHigh Limit

Control

AdjustableLeveling Feet

Eco High Limit

Low Water Sensor

MOD CON Dimensional Information

LP-205-CRev. 10/8/08

General Note:Allventpipesmustbeglued,properlysupportedandtheexhaustmustbepitchedaminimumof¼"perfootbacktotheheater(toallowdrainageofcondensate).

MOD CON Vertical VentingRoof Venting with Stainless Steel (AL294C) Sidewall Venting with Stainless Steel

Note:Ventmustbeatleast12”overmaximumsnowlevelor24”,whicheverisgreater–checkwithlocalcoderequirements

LP-205-YRev. 7/07/08

(ALL MODELS)FRONT

(MOD CON 300)LEFT SIDE

(MOD CON 300)RIGHT SIDE

ELECTRICAL BOXPOWER SWITCH DISPLAY PANELOUTLETHOT WATER

INLETCOLD WATER

ACCESS PANEL

A

K

L

D

E

FBC

N

J

H

G

GAS LINE

DISCHARGECONDENSATE

LEGS ADJUST1-1/4" - 3"

(MOD CON 500/850)RIGHT SIDE

EXHAUST

REAR (ALL MODELS)

ACCESS PANEL ELECTRICAL BOX

LEFT SIDE (MOD CON 500/850)

AIR INTAKE M

(ALL MODELS)FRONT

(MOD CON 300)LEFT SIDE

(MOD CON 300)RIGHT SIDE

ELECTRICAL BOXPOWER SWITCH DISPLAY PANELOUTLETHOT WATER

INLETCOLD WATER

ACCESS PANEL

A

K

L

D

E

FBC

N

J

H

G

GAS LINE

DISCHARGECONDENSATE

LEGS ADJUST1-1/4" - 3"

(MOD CON 500/850)RIGHT SIDE

EXHAUST

REAR (ALL MODELS)

ACCESS PANEL ELECTRICAL BOX

LEFT SIDE (MOD CON 500/850)

AIR INTAKE M

WHICHEVER IS GREATER

12" OVER MAXIMUMSNOW LEVEL OR 24"

ROOF EXHAUST RAIN CAP - STAINLESS STEEL4" Z-FLEX 2SVSRCF04 6" Z-FLEX 2SVSRC06

AIR INTAKEGALVANIZED/B-VENT24" MIN.

10' 0" MIN.

SUPPORTBRACKETS

SIDE WALL EXHAUSTTERMINATION4" Z-FLEX 2SVSRTF04 6" Z-FLEX 2SVSRTX06

SNOW LEVEL

7' or 1'ABOVE MAX.

POTENTIAL

AIR INTAKEGALVANIZEDB-VENT

SUPPORTBRACKETS

12"

ModelBTU / hr

InputLow Fire

GrossOutput

BTU / hr

Net I=B=RBTU / hr

Thermal Efficiency

Boiler Water

Supply/Return Conn.

Gas Conn.

Vent Dia.

Ship Wt.

High Fan

Speed

Low Fan

SpeedIgnition

MODCON500 100,000–500,000 470,000 409,000 94% 4.2 2" 1-1/2" 4" 505 6930 1250 3000MODCON850 170,000–850,000 799,000 695,000 94% 5.8 2" 2" 6" 580 5500 1500 3000

Model A B C D E F G H J K L M N

MODCON500 20.00” 6.25” 13.25” 14.50” 33.25” 5.15” 20.50” 36.00” 40.00” 25.50” 14.75” 10.50” 34.00”MODCON850 20.00” 6.25” 16.25” 18.75” 43.50” 20.00” 20.50” 36.00” 68.75” 25.50” 20.00” 10.50" 57.50"

PLEASE NOTE: ALL DIMENSIONS ARE APPROXIMATE AND HEIGHTS DO NOT INCLUDE ADJUSTABLE LEGS.

©2014HTP,Inc.www.htproducts.com LP- 250Rev.09/2014

MOD CON Single Boiler Space Heating with Indirect Priority

LP-205-LRev. 10/29/08

Notes:1. Thisdrawingismeanttoshowsystempiping

conceptonly.2. AnAnti-Scaldmixingvalveisrecommendedif

theDHWtemperatureissetabovethefactorysettingof119°F.

3. Installaminimumof12diametersofstraightpipeupstreamofallcirculators.

4. PipingshownisPrimary/Secondary5. SystemFlow(SecondaryLoop)mustbe

greaterthantheboiler’sprimaryloopflow.

LP-205-CCRev. 7/8/08

SYSTEMCIRCULATOR

DRAIN VALVE

SUPPLY SENSOR(OPTIONAL)

AIR ELIMINATOR

BALL VALVE(TYPICAL) 4 PIPE DIAMETER

SPACING MAXIMUM

MAKE-UP WATER

BACKFLOW PREVENTER

PRESSURE REDUCING VALVE

PRESSURE GAUGE

EXPANSIONTANK

DRAIN VALVE(PURGE POINT)

SWING CHECKVALVE (TYPICAL)

BOILER CIRCULATOR(TYPICAL)

BOILERCIRCULATOR

(TYPICAL)

UNION(TYPICAL)

DRAIN VALVE(TYPICAL)

TEMP/PRESSURE GAUGE(TYPICAL)

PRESSURE RELIEFVALVE (TYPICAL)

BOILER 2(FOLLOWER)

BOILER 1(MASTER)

TO SYSTEM

FROM SYSTEM

TO SYSTEM

SWING CHECK VALVE

BOILERMODCON

TEMPERATURE/PRESSURE GAUGE

SYSTEMFROM

4 PIPE DIAMETERSPACING MAXIMUM

VALVEDRAIN

BALL VALVE(TYPICAL)

AIR ELIMINATOR

CIRCULATORSYSTEM

(OPTIONAL)SUPPLY SENSOR

BOILERCIRCULATOR

TANKEXPANSION

INLETCOLD WATER

ANTI-SCALDMIXING VALVE

HOT WATERCIRCULATOR

VALVE

(PURGE POINT)DRAIN VALVE

BACKFLOWPREVENTER

DRAIN VALVE

PRESSURE GAUGE

PRESSURE REDUCING

UNION(TYPICAL)

HOT WATEROUTLET

VALVERELIEFPRESSURESWING CHECK VALVE

MAKE-UPWATER