Lochinvar 000 through 2, 1 Table CC, Maximum Flow for Heating Boiler, Btu/hr Input Maximum Flow

Page 67

The automatic bypass system allows part of the boiler discharge water to be mixed with the inlet water to the primary heat exchanger to increase the boiler inlet temperature above 130°F (55°C). This will prevent the products of combustion from condensing on the primary heat exchanger. Avalve must also be provided on the boiler discharge, after the bypass. Closing this discharge valve sets the maximum flow through the appliance. (See Bypass—Initial Set-up of Maximum Water Flow for more details.)

A minimum water temperature of 50°F (10°C) has been established for each boiler based on the Btu/hr input at 100% of rated burner input. The temperature set point for the Excel 10 controller sensing system must not be set lower than the specified minimum for each model. Maintaining inlet water temperatures to the boiler equal to or higher than the specified minimum set point ensures proper operation of the bypass and allows all condensate formation to occur on the secondary heat exchanger. A boiler allowed to sustain operation at water temperatures lower than the specified minimum set point may not provide enough heat from the burner to maintain water temperatures in the primary heat exchanger above the 130°F (55°C) dew point of flue products. Operation of a boiler at a temperature below the specified minimum set point will result in non-warrantable operational problems from the condensate formation on the primary heat exchanger.

TABLE - CC

Minimum Inlet Water Temperatures

THREE WAY VALVES

The installation of a three way valve on this boiler is not recommended because most piping methods allow the three way valve to vary flow to the boiler. This boiler is a low mass, high efficiency unit which requires a constant water flow rate for proper operation. Low flow rates can result in overheating of the boiler water which can cause short burner cycles, system noise, relief valve discharge and in extreme cases, a knocking flash to steam. These conditions can cause operational problems and non- warrantable failures of the boiler.

MAXIMUM FLOW FOR

HEATING BOILER

CAUTION￿

The maximum flow rate through the boiler with a copper heat exchanger must not exceed the following:

Btu/hr Input

Maximum Flow

 

 

1,500,000 - 2,000,000

90 GPM

 

 

If higher flow rates are required through the boiler, an optional Cupro-Nickel heat exchanger is available. Consult the factory for specific application requirements.

Input

 

Minimum Return

Btu/hr

 

Temperature

 

 

 

1,500,000

 

50°F (10°C)

_________

 

__________________

1,700,000

 

50°F (10°C)

_________

 

__________________

2,000,000

 

50°F (10°C)

 

 

 

Minimum Setpoint

105°F (40.6°C)

______________

90°F (32.2°C)

______________

70°F (23.9°C)

The heat exchanger is capable of operating within the design flow rates for the boiler secondary loop requirements. Erosion of the finned copper tubes may occur if the flow rate exceeds the maximum allowable flow rate through the boiler. The maximum flow through the boiler must be adjusted with the bypass valve in the full closed position. Maximum flow is 90 GPM. Flow rate can be determined by measuring the temperature rise through the boiler when it is firing at full rate input. See Bypass-Initial Setup for adjustment procedure.

CAUTION￿

A boiler allowed to operate at set point temperatures below the specified minimum settings may experience operational problems with the operating controls and safety switches, obstruction of the flue gas passages on the primary heat exchanger, incomplete combustion and possible flue gas spillage. Operation at lower than specified water temperatures may cause hazardous conditions that result in non-warrantable damage to the appliance.

BOILER TEMPERATURE

RISE CHART

TABLE - DD

Temperature Rise at Full Rate Fire

Bypass Fully Closed and 90 GPM Flow

Btu/hr Input

 

Temperature Rise

 

 

 

1,500,000

 

31.5°F (17.5°C)

_______________________

 

________________________

1,700,000

 

35.7°F (19.8°C)

_______________________

 

________________________

2,000,000

 

42.0°F (23.3°C)

 

 

 

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Contents Special Instructions To Owner WarrantyIFB/IFW-i&s-05 Table of Contents Owner Warning Checking EquipmentDo not What to do if YOU Smell GASClearances from Combustible Construction Installation Procedure Location of UnitRecommended Service Clearances Table aCombustion Air Direct from Outside 500 in2 3226 cm2 667 in2 4303 cm2 000 in2 12,903 cm2 Table BMinimum Recommended Combustion AIR Supply to Mechanical RoomConstruction Air Filter Construction AIR FilterCategory IV Flue Pipe Sizes Construction AIR Filter Kits Table CVenting Table DVenting Guidelines for a Category IV Vent Category IV Positive Pressure Venting SystemCategory IV Venting Category IV Flue Pipe MaterialsGeneral Category IV Vent Termination Clearances Drain Tee InstallationExceed a maximum of 100 equivalent feet 30.5 m in length Vertical Venting Terminations Masonry Chimney InstallationsSidewall Vent Sidewall Venting TerminationsTable E Sidewall Vent Cap KitsDirect Vent INTELLI-VENT Systems Location of a Sidewall Vent TerminationLength of Air Inlet Pipe Table FDirect Vent and Intelli-Vent Flue Air Inlet Pipe Sizes Air InletCombined Combustion Air Inlet Points Vertical Direct Vent SystemsHorizontal Direct Vent Multiple Vertical Direct Vent InstallationsTable G Sidewall Combustion AIR InletLocation of a Sidewall Air Inlet Cap These are Multiple Horizontal Direct Vent InstallationsAir Inlet Sidewall Input Flue Pipe Btu/hr Size Table HCombined Air Inlet Points Maximum Length of an Intelli-Vent System500,000 SVK3026 Horizontal INTELLI-VENT with Vertical Combustion AIRAir Inlet Sidewall Input Flue Pipe Btu/hr Size Cap KitLocation of a Rooftop Air Inlet Cap Vertical Combustion Horizontal INTELLI-VENT AIR InletTable J Table L GAS Supply GAS Pressure TestTable K GAS ConnectionTable N Recommended Gas Pipe Size Single Appliance InstallationsMultiple Appliance Installations Gas Pipe Size Chart Table MChecking GAS Supply Pressure GAS Manifold Pressure AdjustmentInstall Piping to Control GAS PipingChecking Manifold GAS Pressure Water Connections Water ConnectionsInlet and Outlet Connections Secondary Heat Exchanger Primary Heat ExchangerMinimum Pipe Size Requirements Bypass Valve Synchronization Integral BypassBypass Initial Set-up of Maximum Water Flow Bypass Piping AssemblyIntegral Circulator Optional Intermittent Pump OperationBypass Operation Minimum Water TemperaturesBtu/hr Input Temperature Rise Table PGAS Train and Controls Water Flow SwitchTable Q LOW Water CutoffDiaphragm GAS Valve Ratio GAS Valve Relief ValveElectrical Connections Jacket AssemblyFront Control Panel Locations Access to Components and ControlsTransformer and Relay Locations Variable Frequency DriveLOW AIR Pressure Switch High GAS Pressure Switch LOW GAS Pressure Switch OptionalExcel Be used as a diagnostic indicator To Activate the Manual Override Temperature AdjustmentDefault Values Pre-programmed in the Excel Table SAccessing the SIX Changeable Points from Command Display Password FunctionConfiguring Command Display Table T Display Default ValuesSequencing Type Calculated Set PointTotal Run Time Set Point TempCommand Display Data Screen Hot Surface Igniter On Status PointsTable U Status Point Operational ModesOptional on Heating Boilers Only Outdoor Reset Function SelectionsEfficiency Optimized with Time Equalization Multiple Appliance InstallationsInterfacing Multiple Appliances Singly Terminated FTT Network Bus Topology SpecificationsTable W Additional Components Used to Interface Multiple Appliances Wire Termination for E-Bus ConnectionTypical Building Management System Diagram High Water Temperature Limit ControlHOT Surface Ignition System Service PartsIgnition Module Lockout Functions Table Z Diagnostic Status IndicationTable Y Ignition and Control TimingsTable AA OPERATION/DIAGNOSTIC LIGHTS, Resets and SwitchesIndicator BurnerCombustion Air Blower and Transition Chamber Combustion AIR BlowerCondensate Drain Location On Rear Condensate ManagementSystem Optional Table BBCondensate Trap Installation Condensate TestingReplenishing the Neutralizer Lighting Instructions Install Condensate TrapIgnition System Checkout To Turn OFF GAS to ApplianceHeat Transfer Process Sequence of OperationEnd of Sequence MaintenanceBurner Maintenance Burner Removal and CleaningLocation of Primary Heat Exchanger Burner Cleaning ProcedureSecondary Heat Exchanger Inspection Lubrication Freeze Protection Water Connections Heating Boilers only Heating Boiler InstallationsFreeze Protection for a Heating Boiler System If Required Water TreatmentCirculator Pump Operation Primary Loop Circulator Pump SpecificationsPiping Lengths Boiler Circulator Pump LimitationsPRIMARY/SECONDARY Boiler Piping Minimum Boiler Water TemperaturesBtu/hr Input Maximum Flow Boiler Temperature Rise Chart Table DDTable CC Maximum Flow for Heating BoilerTypical Heating Boiler Installations TEMPERATURE/PRESSURE GaugePlacing the Boiler Operation Boiler Operating Temperature Control Installation with a Chilled Water SystemBoiler Operation Typical Water Heater Piping with Storage Tank Water Velocity ControlTable FF Table EEMaximum Flow Rate Btu/hr Input Water Chemistry Single Water Heater Piping with Two Storage Tanks Piping Multiple Unit InstallationsCommon Manifold Table GGPump Operation Heat ExchangerTable HH Thermostat SettingsThermal Expansion Optional Relief ValveCathodic Protection Ladder Diagram PWM Wiring Diagram
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000, 000 through 2, 1 specifications

Lochinvar 1 is a remarkable achievement in the realm of modern technology and engineering. As a powerful and efficient water heater, it has been designed to cater to a wide range of residential and commercial needs. One of the standout features of Lochinvar 1 is its advanced heating technology, which incorporates a high-efficiency condensing design. This technology allows the unit to achieve impressive energy savings by maximizing heat transfer while minimizing energy consumption.

The Lochinvar 1 utilizes a stainless steel heat exchanger that enhances durability and corrosion resistance. This not only extends the lifespan of the unit but also ensures consistent performance over time. Coupled with a user-friendly control system, users can easily adjust settings and monitor performance, enhancing overall convenience and usability.

Another key characteristic of the Lochinvar 1 is its compact design, making it suitable for a variety of installation environments. Whether in a residential basement or a commercial utility room, the unit’s space-saving configuration allows for efficient use of available area without compromising on capability.

Safety features are integral to the Lochinvar 1, providing peace of mind for users. The unit is equipped with advanced monitoring systems that can detect irregularities and automatically shut down the system if necessary. This not only protects the equipment but also enhances the safety of the environment in which it operates.

In terms of performance, Lochinvar 1 boasts a high recovery rate, ensuring hot water is available on demand. This is particularly beneficial for settings with high water usage, allowing simultaneous operations without lag.

Moreover, the unit supports various venting options, offering flexibility during installation. Whether using traditional vertical venting or innovations like direct venting, Lochinvar 1 accommodates different building designs and local codes, making it highly versatile.

In conclusion, Lochinvar 1 epitomizes the melding of efficiency, reliability, and user-friendly technology. With its high-performance features, robust safety systems, and adaptable installation options, it stands out as a forefront player in the water heating industry, meeting the diverse needs of today's consumers and businesses alike.
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