Lochinvar 000 through 2, 1 warranty Table P, Bypass Operation, Minimum Water Temperatures

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TABLE - P

Temperature Rise At Full Rate Fire

Bypass Manually Fully Closed

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)

 

 

NOTE:

The Excel 10 controller makes all internal calculations in °C and converts the displayed temperature to °F. This may limit exact temperature adjustment. Setting of temperature rise to the nearest °F is acceptable when setting maximum flow.

Turn off power to the appliance. Reconnect the power leads to the bypass actuator. Turn power on and place the run/stop switch in the run position and allow the bypass valve to go through the synchronization process before it begins normal operation.

WARNING￿

Moving the bypass handle while appliance is firing can result in abnormally high water temperature that may cause sudden relief valve discharge.

BYPASS OPERATION

1.Main burner ignition is achieved.

2.Integral bypass begins the adjustment process to control inlet water temperature to the primary heat exchanger.

3.The Excel 10-controller senses inlet water temperature to the primary heat exchanger.

4.Inlet water temperature into the primary heat

exchanger is displayed as “Bypass Temperature” in one of the 21 points on the Command Display.

5.The floating-point bypass valve begins to adjust position to maintain an inlet temperature to the primary heat exchanger above the dew point of flue products.

6.Minimum inlet water temperature to prevent condensation of flue products is fixed at 130°F (54.4°C). This control point is programmed into the software in the Excel 10 controller.

7.The Excel 10 provides 24 VAC to operate a high torque motor in the actuator, which adjusts the position of the floating-point bypass valve.

8.The actuator for the bypass valve adjusts in as many as 500 micro-steps to achieve the desired water temperature at the inlet to the primary heat exchanger.

9.With each micro-step of movement in the position of the valve, the Excel 10 checks for a change in water temperature at the inlet to the primary heat exchanger. As long as the inlet water temperature is below 130°F (54.4°C) the bypass is moving toward full open to increase the inlet water temperature. When the inlet water temperature is above 130°F (54.4°C) the bypass is moving toward full closed to sustain the water temperature above the dewpoint of the flue products.

10.Operation of the bypass valve maintains water temperatures above the dew point of flue products at the primary heat exchanger to ensure that condensate formation occurs only on the secondary heat exchanger.

The use of a Floating-Point Bypass Valve means that there is no fixed open or closed position on the valve. If errant hands manually move the bypass adjustment handle, it will take longer to adjust to the proper setting but it will still function properly to main- tain water temperatures.

CAUTION￿

Failure to disconnect power to the actuator before declutching or manually moving the valve handle can cause non-warrantable damage to the actuator.

MINIMUM WATER TEMPERATURES

A minimum return water temperature of 50°F (10°C) has been established for each model based on the Btu/hr output at 100% of rated burner input. The temperature set point for the Excel 10 controller sensing system temperature or stored water temperature must not be set lower than the specified minimum for each model. Maintaining inlet water temperatures to the appliance equal to or higher than the specified minimum temperature setting ensures proper operation of the bypass and allows all condensate formation to occur on the secondary heat exchanger. An appliance allowed to sustain operation at water temperatures lower than the specified minimum temperature may not provide enough heat from the burner to maintain water temperatures in primary heat exchanger above the 130°F (54.4°C) dew point of flue products. Operation of the appliance at a temperature below the specified minimum set point temperature will result in non-warrantable operational problems from the condensate formation on the primary heat exchanger.

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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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