Lochinvar 80 - 285 User Manual

Installation & Operation ManualModels: 80 - 285Starting Serial #H07H10040039This manual must only be used by aqualified heating installer / servi

Installation & Operation Manual101 Determine boiler locationProvide air openings to room:Knight boiler alone in boiler room1. No air ventilation

Installation & Operation Manual11Products to avoid:Spray cans containing chloro/fluorocarbonsPermanent wave solutionsChlorinated waxes/cleanersChl

1 Determine boiler location12Installation & Operation ManualWhen removing a boiler from existingcommon vent system:Do not install the Knight boil

Installation & Operation Manual2 Prepare boiler13Figure 2-2 Installing Propane OrificeRemove boiler from wood pallet1. After removing the outer s

Installation & Operation Manual143 General ventingFigure 3-1 PVC/CPVC Two-Pipe SidewallTermination - See page 21 for more detailsFigure 3-3 PVC/C

Installation & Operation Manual15Figure 3-5 Stainless Steel Two-Pipe Vertical Termination - Seepage 28 for more detailsFigure 3-6 PVC/CPVC Concent

Installation & Operation Manual163 General venting PVC/CPVC vent piping materialsUse only the materials listed in Table 3A forvent pipe, and fitt

Installation & Operation ManualTable 3A Vent Pipe, and FittingsAll vent pipe materials and fittings must comply with the following:Item MaterialSt

Installation & Operation Manual183 General ventingAir inlet pipe materials:The air inlet pipe(s) must be sealed. Choose acceptablecombustion air

Installation & Operation Manual193" S.S. ADAPTER3" S.S. INTERMEDIATE(FOR SAF-T VENT ONLY)Figure 3-11 Near Boiler Stainless Steel Venting

2Hazard definitionsThe following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or

Installation & Operation Manual203 General ventingAir contamination Pool and laundry products and common household and hobbyproducts often contai

Installation & Operation Manual214 Sidewall direct ventingVent/air termination – sidewallFollow instructions below whendetermining vent location

Installation & Operation Manual22Vent/air termination – sidewall 4 Sidewall direct venting ALTERNATE VENTING ARRANGEMENT(IF SPACE PERMITS)BIRDSCR

Installation & Operation Manual23FORCED AIRINLETVENT / AIRTERMINATION7' MIN. ABOVE ANYPUBLIC WALKWAYIF LESSTHAN 10’36"MIN.Figure 4-3A Cl

Installation & Operation Manual2412" MIN. BETWEEN EDGE OF AIR INLET AND ADJACENT VENT OUTLETVENT / AIRTERMINATIONVENTAIRFigure 4-5A Multiple

Installation & Operation Manual254 Sidewall direct venting (continued)4" DIA.SDR-26 PIPE2 1/2" DIA.SDR-26 PIPERAIN CAP"Y" CON

Installation & Operation Manual264 Sidewall direct venting Sidewall termination – optional concentric vent Figure 4-9 Concentric Vent Dimensional

Installation & Operation Manual274 Sidewall direct venting (continued)Sidewall termination – optional concentric vent Multiventing sidewall termi

Installation & Operation Manual285 Vertical direct ventingVent/air termination – verticalFollow instructions below whendetermining vent location

Installation & Operation Manual295 Vertical direct venting (continued)Vent/air termination – vertical Prepare roof penetrations1. Air pipe penetr

Installation & Operation Manual3Please read before proceedingInstaller – Read all instructions,including this manual and the KnightBoiler Service

Installation & Operation Manual305 Vertical direct venting Vertical termination – optional concentric vent Description and usageLochinvar offers

Installation & Operation Manual315 Vertical direct venting (continued)Vertical termination – optional concentric vent Figure 5-6 Concentric Vent

Installation & Operation Manual326 Hydronic pipingSystem water piping methodsThe Knight is designed to function in a closed looppressurized syste

Installation & Operation Manual336 Hydronic piping (continued)Circulator sizingThe Knight boiler heat exchanger does have a pressure drop,which m

Installation & Operation Manual346 Hydronic piping 05101520253 4 5 6 7 8 9 1011121314151617181920212223242580105150210285Flow Rate (GPM)Pressure

Installation & Operation Manual356 Hydronic piping (continued)It is required that near boiler pipingsystems utilize Primar y/Secondar yconfigurat

Installation & Operation Manual366 Hydronic piping BOILERINDIRECTDHW TANKDOMESTICHOT WATERCIRCULATORBACKFLOWPREVENTERPRESSUREREDUCING VALVEPRESSU

Installation & Operation Manual376 Hydronic piping (continued)INDIRECTDHW TANKBACKFLOWPREVENTERPRESSUREREDUCING VALVEPRESSUREGAUGEANTI-SCALDMIXIN

Installation & Operation Manual386 Hydronic piping BOILERINDIRECTDHW TANKDOMESTICHOT WATERCIRCULATORANTI-SCALDMIXING VALVECOLD WATERINTEMPERATUR

Installation & Operation Manual396 Hydronic piping (continued)INDIRECTDHW TANKBACKFLOWPREVENTERPRESSUREREDUCING VALVEPRESSUREGAUGEANTI-SCALDMIXIN

Installation & Operation Manual4The Knight Boiler - How it works...1. Stainless steel heat exchangerAllows system water to flow through specially

Installation & Operation Manual406 Hydronic piping BOILERINDIRECTDHW TANKDOMESTICHOT WATERCIRCULATORBACKFLOWPREVENTERPRESSUREREDUCING VALVEPRESS

Installation & Operation Manual416 Hydronic piping (continued)BOILER 1(LEADER)INDIRECTDHW TANKDOMESTICHOT WATERCIRCULATORBACKFLOWPREVENTERPRESSUR

Installation & Operation Manual427 Gas connectionsConnecting gas supply piping1. Remove the top access panel and refer to FIG.’s 7-1 and7-2 to pi

Installation & Operation Manual437 Gas connections (continued)Use two wrenches when tightening gaspiping at boiler (FIG. 7-3), using onewrench to

Installation & Operation Manual447 Gas connections NominalIron PipeSize (Inches)Single UnitNatural Gas Pipe Capacity ChartLength of Pipe in Strai

Installation & Operation Manual457 Gas connections (continued) WARNINGWhen re-tightening the set screw, be sureto tighten securely to prevent ga

Installation & Operation Manual468 Field wiring ELECTRICAL SHOCK HAZARD – Foryour safety, turn off electrical powersupply before making any elect

Installation & Operation Manual47Low voltage connections 1. Route all low voltage wires through the knockouts in therear of the boiler, as shown

Installation & Operation Manual488 Field wiring System supply sensor1. By installing the system supply sensor into the supply ofthe primary loop,

Installation & Operation Manual498 Field wiring (continued)AUX. DEVICEPILOT SUPPLY24VACGNDAUX. DEVICEPROVINGGAS PRESSURESWITCHFLOWSWITCHALARMCONT

Installation & Operation Manual5Front View - Models 80 - 210238101314151820122530293435Left Side (inside unit) - Models 80 - 210134227728262119161

Installation & Operation Manual509 Condensate disposalCondensate drain1. This boiler is a high efficiency appliance that producescondensate.2. Th

Installation & Operation Manual5110 Start-upCheck/control water chemistryDo not use petroleum-based cleaning orsealing compounds in the boiler sy

Installation & Operation Manual5210 Start-up Check for gas leaksBefore starting the boiler, and duringinitial operation, smell near the floor and

Installation & Operation Manual5310 Start-up (continued)Final checks before starting the boiler Read the Knight Boiler Service Manual to familia

Installation & Operation Manual5410 Start-up

Installation & Operation Manual55Check flame and combustion (continued)4. Place the boiler into the active position by pressing theSHUTDOWN button

Installation & Operation Manual5610 Start-up Set domestic hot water (DHW) operationVerify DHW circulator modeThe DHW Mode is programmed to heat a

Installation & Operation Manual5711 Operating informationGeneralHow the boiler operatesThe Knight boiler uses an advanced stainless steel heatexc

Installation & Operation Manual5811 Operating information Ramp delayFor systems with lower flow, the SMART SYSTEM can limitthe firing rate (when

Installation & Operation Manual59High limit operationsWhen outlet temperature exceeds 200°F, high limit actionoccurs. The boiler shuts down until

Installation & Operation Manual6The Knight Boiler - How it works...1518Model 285Left Side (inside unit) - Model 285Right Side (inside unit) - Mode

Installation & Operation Manual6011 Operating information Cascade (continued)If the water temperature at the system supply sensor is less thanthe

Installation & Operation Manual61OPERATION DISPLAY1. Upon a call for heat, the control turns on the appropriate pumps(system and boiler pumps for

Installation & Operation Manual6211 Operating information Sequence of operation (continued)OPERATION DISPLAY8. If the DHW thermostat remains on f

Installation & Operation Manual63Knight boiler control moduleFigure 11-1 Control PanelUse the control panel (FIG. 11-1) to set temperatures, opera

Installation & Operation Manual64Access modesUserThe user can adjust space heating target temperature by using theUP and DOWN buttons (FIG. 11-1)

Installation & Operation Manual65Status Display ScreensBy using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, you can nav

Installation & Operation Manual66Status Display Screens (cont’d)By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, yo

Installation & Operation Manual67Status Display Screens (cont’d)By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, yo

Installation & Operation Manual68Status Display Screens (cont’d)Operation of the cascadeThe boiler designated as the Leader will have two addition

Installation & Operation Manual6912 MaintenanceMaintenance and annual startupTable 12A Service and Maintenance SchedulesService technician(see th

Installation & Operation Manual7RatingsNotes:1. As an Energy Star Partner, Lochinvar has determined thatKnight boilers meet the Energy Star guidel

Installation & Operation Manual7012 MaintenanceFollow the service and maintenance procedures given throughout this manual and in component litera

Installation & Operation Manual7112 Maintenance (continued)Flue vent system and air piping1. Visually inspect the entire flue gas venting system

Installation & Operation Manual7212 MaintenanceInspect ignition and flame senseelectrodes1. Remove the ignition and flame sense electrodes from t

Installation & Operation Manual73Check flame signal1. At high fire the flame signal shown on the display shouldbe at least 10 microamps.2. A lower

Installation & Operation Manual7413 DiagramsBOX DEPICTSOPTIONAL ITEMSLADDER DIAGRAMLBL7083 REV G120 VAC24 VAC120VACTERMINAL STRIP120V SUPPLY &quo

Installation & Operation Manual75DISPLAYX1-8X5-5X5-13X5-6X5-12INTEGRATED CONTROLBLOWERX1-1X2-2X2-1X1-7GASVALVEFLAMERODSPARKRODW/RGRRTWBKGR132WGBOX

Revision Notes: Revision 7 (KB-I&O-07) reflects the addition of theDungs information to the manual.Revision 8 (KB-I&O-08) reflects edits made

Installation & Operation Manual8The Knight boiler gas manifold andcontrols met safe lighting and otherperformance criteria when the boilerunderwen

Installation & Operation Manual91 Determine boiler location (continued) RECOMMENDED SERVICE CLEARANCES:FRONT - 24”TOP -