Lochinvar 51-211 operation manual 10Single Boiler Non-Zoned Primary/Secondary Piping

Page 47

Installation & Operation Manual

6 Hydronic piping (continued)

Figure 6-10Single Boiler - Non-Zoned Primary/Secondary Piping

PRESSURE REDUCING VALVE

BACKFLOW

PREVENTER

PRESSURE GAUGE

MAKE UP WATER		AIR
		AIR
SYSTEM SUPPLY		SEPARATOR
SYSTEM SUPPLY
	SENSOR	MAY SUBSTITUTE LOW LOSS HEADER
TO				FROM
SYSTEM				SYSTEM
	SYSTEM	NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART
BALL VALVE	SYSTEM
BALL VALVE	CIRCULATOR
(TYPICAL)
		Y-STRAINER	FLOW CHECK VALVE
	EXPANSION	(RECOMMENDED)
	EXPANSION	BOILER	DOMESTIC	ANTI-SCALD	HOT
	TANK	BOILER	HOT WATER	MIXING VALVE	HOT
	DRAIN POINT	CIRCULATOR	CIRCULATOR		WATER
	DRAIN POINT		CIRCULATOR		OUT
	(TYPICAL)

COLD

WATER

IN

PRESSURE

RELIEF VALVE

BOILER

		INDIRECT
	UNION	DHW TANK
	UNION	DRAIN
	(TYPICAL)	DRAIN
	(TYPICAL)

TEMPERATURE /

PRESSURE

GAUGE

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.

47

Image 47

Contents Models 51 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Gas connection pipe Knight Wall Mount Boiler How it worksModels 51 Knight Wall Mount Boiler Ahri Rating RatingsBefore locating the boiler, check Installation must comply withCloset and alcove installations Determine boiler location1Closet Installation Minimum Required Clearances Prevent combustion air contamination PrecautionsVent and air piping Wall mounting locationAreas likely to have contaminants When using an existing vent system to install a new boilerProducts to avoid When removing a boiler from existing common vent system Gas conversions Prepare boilerRemove boiler from wood pallet Mounting to a metal studded wall Mounting the boilerMounting to a wood studded wall Mounting to a concrete wallDirect venting options Vertical Vent General ventingDirect venting options Sidewall Vent Air intake/vent connections Install vent and combustion air pipingLength Requirements for installation in CanadaSizing Air inlet pipe materials MaterialsModel Kit Number Optional room airAir contamination Primer Material StandardVent fittings Centrotherm InnoFlue SW PolypropyleneFlue Intake Air Adapter Termination Stainless steel ventApproved Stainless Steel Vent Manufacturers Make Model FlueDetermine location If using the alternate sidewall terminationSidewall direct venting Vent/air termination sidewall2AClearance to Gravity Air Inlets Prepare wall penetrations Alternate Field Supplied Option Prepare wall penetrations5AMultiple Vent Terminations must also comply with -1A Multiple vent/air terminationsDescription and usage Sidewall termination installationSidewall termination optional concentric vent Sidewall termination optional concentric vent models 8Concentric Vent Dimensional DrawingMultiventing sidewall terminations 10Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct venting2Vertical Terminations with Multiple Boilers Prepare roof penetrationsVertical termination optional concentric vent Vertical termination installationMinimum Combustion AIR Typical Multiventing vertical terminationsConcentric Venting Arrangement Alternate vertical concentric ventingAIR Inlet Flue Exhaust Seal CAP Existing Flue Outlet Existing vent as a chaseChilled water system Hydronic pipingSystem water piping methods General piping information Low water cutoff deviceNear boiler piping components Circulator sizing Near boiler piping connectionsArmstrong Pump Size GrundfosUP26-96 FC/VS IFC VS Stratos 1.25 3 x Smart System / Multi-temperature loop control optionVariable speed pump setup Variable speed pump option3Single 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 Gas connections Connecting gas supply pipingPropane Gas Natural gasLength of Pipe in Straight Feet for 1/2 PSI Natural Gas Pipe Capacity ChartCheck inlet gas supply Gas Pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsThermostat Outdoor temperature sensorLouver proving switch Flow switchBoiler management system Alarm contactsWiring of the cascade System supply sensor4Low Voltage Field Wiring Connections Condensate drain Condensate disposalFill and test water system Freeze protection when usedStart-up Check/control water chemistryInspect/check condensate lines and fittings Clean/Inspect Trap AssemblyCheck for gas leaks Check thermostat circuits Inspect/fill condensate systemCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctly2Operating Instructions Natural Gas Propane Set space heating operationSet domestic hot water DHW operation Verify DHW modeConfiguration of the cascade How the control module operates Operating informationGeneral How the boiler operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationUser Access modesInstaller 1Control Panel Knight wall mount boiler control moduleCall for Heat Operating information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check expansion tank Check ignition ground wiringCheck all boiler wiring Check control settingsReview with owner Check flame signalCleaning boiler heat exchanger Oiled bearing circulators Heat Exchanger Cleaning KitsPC Interface Diagrams2Wiring Diagram

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