Lochinvar 51-211 operation manual 8Single Boiler Zoned with Valves

Page 45

Installation & Operation Manual

6 Hydronic piping (continued)

Figure 6-8Single Boiler Zoned with Valves

		ZONE #1
PRESSURE	PRESSURE
REDUCING VALVE	GAUGE	ZONE #2	ZONE #3	ZONE #4
		ZONE #2	ZONE #3	ZONE #4
BACKFLOW
PREVENTER
MAKE UP WATER
SYSTEM SUPPLY		SYSTEM
	SENSOR	SYSTEM
		CIRCULATOR
AIR SEPARATOR
		EXPANSION
		TANK

ZONE VALVES (TYPICAL)

DIFFERENTIAL PRESSURE BYPASS VALVE (IF USED)

BALL VALVE (TYPICAL)

DRAIN POINT

(TYPICAL)

MAY SUBSTITUTE LOW LOSS HEADER

Y-STRAINER (RECOMMENDED)

			DOMESTIC	HOT
				WATER				ANTI-SCALD
				WATER				ANTI-SCALD
FLOW CHECK			HOT WATER	OUT			MIXING VALVE
	VALVE		CIRCULATOR
	VALVE		CIRCULATOR

COLD

WATER

IN

PRESSURE

RELIEF VALVE

BOILER

CIRCULATOR

BOILER

UNION
(TYPICAL)	DRAIN
	DRAIN
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.

45

Image 45

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 RatingsCloset and alcove installations Installation must comply withDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Vent and air piping PrecautionsWall mounting location Prevent combustion air contaminationWhen using an existing vent system to install a new boiler Products to avoidAreas likely to have contaminants When removing a boiler from existing common vent system Prepare boiler Remove boiler from wood palletGas conversions Mounting to a wood studded wall Mounting the boilerMounting to a concrete wall Mounting to a metal studded wallGeneral venting Direct venting options Sidewall VentDirect venting options Vertical Vent Air intake/vent connections Install vent and combustion air pipingRequirements for installation in Canada SizingLength Air inlet pipe materials MaterialsOptional room air Air contaminationModel Kit Number Material Standard Vent fittingsPrimer Centrotherm InnoFlue SW PolypropyleneApproved Stainless Steel Vent Manufacturers Make Model Stainless steel ventFlue Flue Intake Air Adapter TerminationSidewall direct venting If using the alternate sidewall terminationVent/air termination sidewall Determine location2AClearance to Gravity Air Inlets Prepare wall penetrations Alternate Field Supplied Option Prepare wall penetrations5AMultiple Vent Terminations must also comply with -1A Multiple vent/air terminationsSidewall termination installation Sidewall termination optional concentric ventDescription and usage 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 chaseSystem water piping methods General piping information Hydronic pipingLow water cutoff device Chilled water systemNear boiler piping components Circulator sizing Near boiler piping connectionsArmstrong Pump Size GrundfosVariable speed pump setup Smart System / Multi-temperature loop control optionVariable 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 Gas connections Connecting gas supply pipingPropane Gas Natural gasNatural Gas Pipe Capacity Chart Check inlet gas supplyLength of Pipe in Straight Feet for 1/2 PSI Gas Pressure Gas valve replacementInstallation must comply with Field wiringLine voltage connections Low voltage connectionsLouver proving switch Outdoor temperature sensorFlow switch ThermostatWiring of the cascade Alarm contactsSystem supply sensor Boiler management system4Low Voltage Field Wiring Connections Condensate drain Condensate disposalStart-up Freeze protection when usedCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuits Clean/Inspect Trap AssemblyInspect/fill condensate system Inspect/check condensate lines and fittingsStart the boiler Final checks before starting the boilerIf boiler does not start correctly Check system and boiler2Operating Instructions Natural Gas Propane Set space heating operationVerify DHW mode Configuration of the cascadeSet domestic hot water DHW operation General Operating informationHow the boiler operates How the control module operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationAccess modes InstallerUser 1Control Panel Knight wall mount boiler control moduleCall for Heat Operating information Dial Function Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check all boiler wiring Check ignition ground wiringCheck control settings Check expansion tankCheck flame signal Cleaning boiler heat exchangerReview with owner Oiled bearing circulators Heat Exchanger Cleaning KitsPC Interface Diagrams2Wiring Diagram

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