Lochinvar Boiler Installation Manual and Piping Diagram Guide

Page 40

Installation & Operation Manual

6 Hydronic piping

Figure 6-3Single Boiler - Single Temperature Zoned with Circulators

		ZONE #1
PRESSURE	PRESSURE
REDUCING VALVE	GAUGE	ZONE #2	ZONE #3	ZONE #4
BACKFLOW				FLOW CHECK
PREVENTER				FLOW CHECK
PREVENTER				VALVE
				(TYPICAL)
MAKE UP WATER
SYSTEM SUPPLY				ZONE CIRCULATORS
SENSOR				ZONE CIRCULATORS
				(TYPICAL)
AIR SEPARATOR
		EXPANSION
		TANK

BALL VALVE (TYPICAL)

DRAIN POINT (TYPICAL)

BOILER

CIRCULATOR

MAY SUBSTITUTE LOW LOSS HEADER

NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART

		HOT
		WATER
Y-STRAINER		OUT
(RECOMMENDED)	DOMESTIC	ANTI-SCALD
	DOMESTIC	MIXING VALVE
	HOT WATER	MIXING VALVE
	CIRCULATOR	COLD
		WATER
		IN

PRESSURE

RELIEF VALVE

UNION (TYPICAL)

BOILER

TEMPERATURE /	DRAIN	INDIRECT
PRESSURE	DRAIN	INDIRECT
GAUGE		DHW TANK

NOTICE

Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.

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Contents Models 51 Contents When servicing boiler Please read before proceedingKnight Wall Mount Boiler How it works Stainless steel heat exchanger Gas connection pipeModels 51 Ratings Knight Wall Mount Boiler Ahri RatingInstallation must comply with Closet and alcove installationsDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Precautions Vent and air pipingWall mounting location Prevent combustion air contaminationProducts to avoid When using an existing vent system to install a new boilerAreas likely to have contaminants When removing a boiler from existing common vent system Remove boiler from wood pallet Prepare boilerGas conversions Mounting the boiler Mounting to a wood studded wallMounting to a concrete wall Mounting to a metal studded wallDirect venting options Sidewall Vent General ventingDirect venting options Vertical Vent Install vent and combustion air piping Air intake/vent connectionsSizing Requirements for installation in CanadaLength Materials Air inlet pipe materialsAir contamination Optional room airModel Kit Number Vent fittings Material StandardPrimer Polypropylene Centrotherm InnoFlue SWStainless steel vent Approved Stainless Steel Vent Manufacturers Make ModelFlue Flue Intake Air Adapter TerminationIf using the alternate sidewall termination Sidewall direct ventingVent/air termination sidewall Determine location2AClearance to Gravity Air Inlets Prepare wall penetrations Prepare wall penetrations Alternate Field Supplied OptionMultiple vent/air terminations 5AMultiple Vent Terminations must also comply with -1ASidewall termination optional concentric vent Sidewall termination installationDescription and usage 8Concentric Vent Dimensional Drawing Sidewall termination optional concentric vent models10Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations 2Vertical Terminations with Multiple BoilersVertical termination installation Vertical termination optional concentric ventMultiventing vertical terminations Minimum Combustion AIR TypicalAlternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase AIR Inlet Flue Exhaust Seal CAP Existing Flue OutletHydronic piping System water piping methods General piping informationLow water cutoff device Chilled water systemNear boiler piping components Near boiler piping connections Circulator sizingPump Size Grundfos ArmstrongSmart System / Multi-temperature loop control option Variable speed pump setupVariable speed pump option UP26-96 FC/VS IFC VS Stratos 1.25 3 x3Single Boiler Single Temperature Zoned with Circulators Number of Units 5Single Boiler Multiple Temperatures Required Pipe Sizes Model 8Single Boiler Zoned with Valves Model Number of Units 10Single Boiler Non-Zoned Primary/Secondary Piping Connecting gas supply piping Gas connectionsNatural gas Propane GasCheck inlet gas supply Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas valve replacement Gas PressureField wiring Installation must comply withLine voltage connections Low voltage connectionsOutdoor temperature sensor Louver proving switchFlow switch ThermostatAlarm contacts Wiring of the cascadeSystem supply sensor Boiler management system4Low Voltage Field Wiring Connections Condensate disposal Condensate drainFreeze protection when used Start-upCheck/control water chemistry Fill and test water systemClean/Inspect Trap Assembly Check for gas leaks Check thermostat circuitsInspect/fill condensate system Inspect/check condensate lines and fittingsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boiler2Operating Instructions Set space heating operation Natural Gas PropaneConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation Operating information GeneralHow the boiler operates How the control module operatesTemperature control Protection featuresBoiler temperature regulation Outdoor reset operation, if used CascadeSequence of operation Operation DisplayInstaller Access modesUser Knight wall mount boiler control module 1Control PanelCall for Heat Operating information Dial Function Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check ignition ground wiring Check all boiler wiringCheck control settings Check expansion tankCleaning boiler heat exchanger Check flame signalReview with owner Heat Exchanger Cleaning Kits Oiled bearing circulatorsDiagrams PC Interface2Wiring Diagram

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