Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 1, 000 warranty TABLE - B Minimum Recommended Combustion, Air Supply To Mechanical Room

Models: 000 through 2 1

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TABLE - B

TABLE - B

Minimum Recommended Combustion

AIR SUPPLY TO MECHANICAL ROOM

Combustion Air Source

Btu/hr	Outside Air*	Outside Air*
Input	2 - Openings	1 - Opening

1,500,000	375 in2 (2419 cm2)	500 in2 (3226 cm2)

1,700,000	425 in2 (2742 cm2)	567 in2 (3658 cm2)

2,000,000	500 in2 (3226 cm2)	667 in2 (4303 cm2)

Inside Air

2 - Openings

1,500 in2 (9,677 cm2)

1,700 in2 (10,968 cm2)

2,000 in2 (12,903 cm2)

*Outside air openings shall directly communicate with the outdoors. When combustion air is drawn from the outside through a duct, the net free area of each of the two openings must have twice (2 times) the free area required for Outside Air/2 Openings. The above requirements are for the boiler only, additional gas fired appliances in the equipment room will require an increase in the net free area to supply adequate combustion air for all appliances. Combustion air requirements are based on the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada refer to the latest edition of CAN/CGA B149. Check all local code requirements for combustion air.

FIG. 7 Combustion Air from Interior Space

FIG 8 Combustion Air from Outside - Single Opening

3.If air is taken from another interior space, each of the two openings specified above should have a net free area of one square inch for each 1000 Btu (22 cm2 per kW) of input, but not less than 100 square inches (645 cm2).

4.If a single combustion air opening is provided to

bring	combustion	air	in directly		from the		outdoors,
the	opening must	be	sized	based on		a	minimum
free	area of one square inch			per	3000	Btu (7		cm2
per kW). This opening must				be	located	within		12"
(30 cm) of the top of the enclosure.

CAUTION

Under no circumstances should the mechanical room ever be under a negative pressure. Particular care should be taken where exhaust fans, attic fans, clothes dryers, compressors, air handling units, etc., may take away air from the unit.

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Lochinvar 1, 000 through 2 warranty TABLE - B Minimum Recommended Combustion, Air Supply To Mechanical Room

Contents

INSTALLATION AND SERVICE MANUAL WARRANTYSPECIAL INSTRUCTIONS TO OWNER Intelli-FinTABLE OF CONTENTS Water Heater/Domestic Hot Water Supply BoilerWHAT TO DO IF YOU SMELL GAS CHECKING EQUIPMENTDO NOT OWNER WARNINGTABLE - A Clearances from INSTALLATION PROCEDURE LOCATION OF UNITRECOMMENDED SERVICE CLEARANCES Combustible ConstructionFIG. 5 Combustion Air Direct from Outside COMBUSTION AND VENTILATION AIR REQUIREMENTS FORAPPLIANCES DRAWING AIR FROM THE EQUIPMENT ROOM FIG. 6 Combustion Air Through DuctsTABLE - B Minimum Recommended Combustion AIR SUPPLY TO MECHANICAL ROOMCONSTRUCTION AIR FILTER FIG. 9 Construction Air FilterTABLE - D The Category IV Flue Pipe Sizes CONSTRUCTION AIR FILTER KITS TABLE - CVENTING InputCategory IV Flue Pipe Materials A CATEGORY IV POSITIVE PRESSURE VENTING SYSTEMCategory IV Venting Venting Guidelines for a Category IV VentDrain Tee Installation General Category IV Vent Termination ClearancesFIG. 12 Drain Tee 10 OR LESS MASONRY CHIMNEY INSTALLATIONSVERTICAL VENTING TERMINATIONS 2 MINSidewall Vent SIDEWALL VENTING TERMINATIONSTABLE - E Sidewall Vent Cap Kits Cap Kit3 MIN LOCATION OF A SIDEWALL VENT TERMINATIONDIRECT VENT AND INTELLI-VENTSYSTEMS 4 MINAir Inlet TABLE - F Direct Vent and Intelli-VentFlueand Air Inlet Pipe Sizes Length of Air Inlet PipeDANGER VERTICAL DIRECT VENT SYSTEMSCombined Combustion Air Inlet Points Multiple Vertical Direct Vent Installations HORIZONTAL DIRECT VENTVERTICAL COMBUSTION AIR INLET Flue SIDEWALL COMBUSTION AIR INLETTABLE - G Sidewall AirMultiple Horizontal Direct Vent Installations INTELLI-VENTSYSTEMSCombined Air Inlet Points TABLE - HVERTICAL INTELLI-VENTWITH SIDEWALL COMBUSTION AIR Maximum Length of an Intelli-VentSystemTABLE - HORIZONTAL INTELLI-VENTWITHVERTICAL COMBUSTION AIR VentAIR INLET VERTICAL COMBUSTIONHORIZONTAL INTELLI-VENT WITH SIDEWALL COMBUSTION AIRFlue TABLE - JSIDEWALL COMBUSTION AIR INLET Air InletGAS PRESSURE TEST Settings at Full FireGAS SUPPLY TABLE - K Inlet Gas PressureTABLE - N Single Appliance InstallationsTABLE - M Recommended Gas Pipe Size TABLE - OGAS PIPING GAS MANIFOLD PRESSURE ADJUSTMENTInstall Piping to Control CHECKING GAS SUPPLY PRESSURECHECKING MANIFOLD GAS PRESSURE – – – – = FIELD CONNECTED WATER CONNECTIONSMANIFOLD GAS PRESSURE AIR INLET GAS WATER OUTLET WATER INLETInlet and Outlet Connections SECONDARY HEAT EXCHANGERPRIMARY HEAT EXCHANGER Minimum Pipe Size RequirementsINTEGRAL BYPASS BYPASS VALVE - SynchronizationOptional Intermittent Pump Operation BYPASS PIPING ASSEMBLYINTEGRAL CIRCULATOR BYPASS - Initial Set-upof Maximum Water FlowTemperature Rise TABLE - P Temperature Rise At Full Rate FireMINIMUM WATER TEMPERATURES Bypass Manually Fully ClosedTemperature TABLE - Q Minimum Inlet Water TemperaturesWATER FLOW SWITCH LOW WATER CUTOFF If EquippedRATIO GAS VALVE RELIEF VALVEDIAPHRAGM GAS VALVE FIG. 43 Ratio Gas ValveELECTRICAL CONNECTIONS JACKET ASSEMBLYVenting of Gas Valves and Pressure Switches TABLE - RACCESS TO COMPONENTS AND CONTROLS FIG. 47 Front Control Panel LocationsFIG. 49 Internal Control Panel Location VARIABLE FREQUENCY DRIVEFIG. 48 Transformer and Relay Locations FIG. 50 Variable Frequency DriveEXCEL LOW AIR PRESSURE SWITCHPRESSURE SWITCH BLOWERbe used as a diagnostic indicator COMMAND DISPLAY TEMPERATURE ADJUSTMENTDefault Values Pre-programmedin the Excel TABLE - STABLE - T DISPLAY DEFAULT VALUES PASSWORD FUNCTIONCONFIGURING THE COMMAND DISPLAY ACCESSING THE SIX CHANGEABLE POINTS FROMTHE COMMAND DISPLAY POINTS FROM INFORMATIONVISIBLE FROM THE SCREEN OF FIG. 56c Command Display Data Screen FIG. 56a Command Display Data ScreenFIG. 56b Command Display Data Screen FIG. 56d Command Display Data ScreenSTATUS POINTS TABLE - UStatus Point Operational Modes OUTDOOR RESET FUNCTION SELECTIONS Status Point Alarm ModesOptional on Heating Boilers Only CLOSED VIEW MULTIPLE APPLIANCE INSTALLATIONSSEQUENCING OPTIONS COMPONENTTABLE - W Wire to the terminal blocks as followsINTERFACING MULTIPLE APPLIANCES TABLE -MULTIPLE APPLIANCES Wire RequirementsADDITIONAL COMPONENTS USED TO INTERFACE FIG. 60 Wire Termination for E-BusConnectionHIGH WATER TEMPERATURE LIMIT CONTROL FIG. 62 High Water Temperature ControlIGNITION CONTROL MODULE Service PartsHOT SURFACE IGNITION SYSTEM Ignition Module Lockout FunctionsTABLE - Y Ignition and Control Timings Ignition Module Status LED Diagnostic CodesDiagnostic Status Indication TABLE - ZIndicator OPERATION/DIAGNOSTIC LIGHTS, RESETS AND SWITCHESDiagnostic Lights and Switches BURNERMOUNTING COMBUSTION AIR BLOWERORIFICE TRANSITIONCONDENSATE MANAGEMENT SYSTEM Optional ACCESS PLATEApproximate Maximum Condensate Volumes TABLE - BBCondensate Testing Condensate Trap InstallationReplenishing the Neutralizer LIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATINGTURN TO OFF POSITION TO TURN OFF GAS TO APPLIANCEIGNITION SYSTEM CHECKOUT LIGHTING INSTRUCTIONSSEQUENCE OF OPERATION Heat Transfer ProcessMAINTENANCE End of SequenceBURNER REMOVAL AND CLEANING D. BURNER MAINTENANCEBurner Cleaning Procedure E.CHANGING THE HOT SURFACE IGNITERFIG. 77 Location of Primary Heat Exchanger G. SECONDARY HEAT EXCHANGER INSPECTION F.PRIMARY HEAT EXCHANGER INSPECTIONFIG. 78 Location of Secondary Heat Exchanger J. CONTROL CIRCUIT VOLTAGE H. LUBRICATIONI. COMBUSTION AND VENTILATION AIR K. COMBUSTION AIR MEASUREMENTFREEZE PROTECTION L. COMBUSTIBLE MATERIALSWATER CONNECTIONS HEATING BOILERS ONLY HEATING BOILER INSTALLATIONSWATER TREATMENT PIPING OF THE BOILER SYSTEMBOILER CIRCULATOR PUMP LIMITATIONS PRIMARY LOOP CIRCULATOR PUMP SPECIFICATIONSPIPING LENGTHS CIRCULATOR PUMP OPERATION Heating Boilers OnlyTO SYSTEM TO EXPANSION TANK MINIMUM BOILER WATER TEMPERATURESPRIMARY/SECONDARY BOILER PIPING AND MAKEUP WATER SYSTEM 12” MAX FROM SYSTEMTemperature Rise at Full Rate Fire BOILER TEMPERATURE RISE CHART TABLE - DDMinimum Inlet Water Temperatures TABLE - CCPLACING THE BOILER IN OPERATION TEMPERATURE/PRESSURE GAUGETYPICAL HEATING BOILER INSTALLATIONS General Plumbing RulesINSTALLATION WITH A CHILLED WATER SYSTEM BOILER OPERATING TEMPERATURE CONTROLBoiler Operation WATER HEATERS WATER VELOCITY CONTROLDOMESTIC HOT WATER SUPPLY BOILER DOMESTIC HOT WATER SUPPLY BOILERSTABLE - FF Temperature Rise At Full Rate FireTABLE - EE Maximum Flow RateWATER CHEMISTRY RELIEF VALVE TO DRAIN LOCK-TEMP STORAGE TANK PIPING - MULTIPLE UNIT INSTALLATIONSMIXING VALVE BUILDING HOT WATER SUPPLY COLD WATER SUPPLY DRAIN BUILDING RETURNTABLE - GG Hot Water Supply Boiler InstallationsTemperature Rise PUMP OPERATIONTABLE - APPROXIMATE TIME / TEMPERATURE RE THERMOSTAT SETTINGSMINIMUM WATER TEMPERATURES TABLE - HHCATHODIC PROTECTION OPTIONAL RELIEF VALVETHERMAL EXPANSION HIGH WATER TEMPERATURE LIMIT CONTROLLadder Diagram 1,500,000 - 1,300,000 - 2,000,000 Btu/hr ModelsWARNING:To CONV REAR WIRINGCONTROLLER HI-LIMIT1,500,000 - 1,300,000 - 2,000,000 Btu/hr Models Wiring Diagram continuedSWITCH LBL90002 REV A1/09-Printedin U.S.A