Lochinvar 000, 1 Piping Lengths, Boiler Circulator Pump Limitations, Circulator Pump Operation

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PIPING LENGTHS

The boiler’s integral circulator provides the water flow from the primary boiler piping, through the boiler and back to the primary system. Pipe diameter and length are critical to ensure proper flow through the boiler. A 3 inch (76.2 mm) diameter pipe installed from the primary system to the boiler inlet must not exceed 70 equivalent feet (21.2 m) in length. The return piping from the boiler back to the primary boiler piping system must also not exceed 70 equivalent feet (21.2 m) in length. Subtract 8 feet (2.9 m) of equivalent length for each 90° elbow installed in the piping to and from the boiler.

The secondary loop piping to and from the boiler must have a fully ported ball valve installed in both the supply and return side piping. The ball valves must be the same diameter as the installed piping. The ball valve in the piping supplying water to the boiler will only be used as a service valve. The ball valve installed in the discharge from the boiler back to the primary system will be used to adjust boiler flow and temperature rise to ensure proper performance.

BOILER CIRCULATOR PUMP

LIMITATIONS

The integral circulator provided on this boiler WILLNOT function as a main system circulator. This boiler was designed for installation in a primary/secondary piping system. The boiler’s integral pump is only sized to provide flow in the secondary loop, from the primary system, through the boiler and back to a primary boiler system piping. Pipe diameter and length are critical to ensure proper flow through the boiler and secondary piping. The boiler primary piping system must have a primary circulator installed in the main system loop to carry the heated boiler water to the point of use in the main system.

This is a low mass, high efficiency hot water boiler which must have adequate flow for quiet, efficient operation. The internal circulating pump will provide this flow for a properly installed secondary loop to the boiler. Pipe diameter and length are critical to ensure proper flow through the boiler and secondary piping. Temperature rise is the difference in boiler inlet temperature and boiler outlet temperature while the boiler is firing. Example: The boiler inlet temperature is 160°F (71.1°C) and the boiler outlet temperature is 180°F (82.2°C). This means that there is a 20°F (11.1°C) temperature rise across the boiler. The boiler temperature rise is visible on the Command Display on the boiler’s front control panel. When the automatic bypass valve is open, a portion of the heated water is recirculated back into the primary heat exchanger. Operation of the bypass will yield higher discharge temperatures from the boiler.

PRIMARY LOOP CIRCULATOR

PUMP SPECIFICATIONS

1.Maximum operating pressure for the pump must exceed system operating pressure.

2.Maximum water temperature should not exceed nameplate rating.

3.Cast iron circulators may be used for closed loop systems.

4.A properly sized expansion tank must be installed near the boiler and on the suction side of the pump.

CIRCULATOR PUMP OPERATION

(Heating Boilers Only)

The boiler pump should run continuously when the boiler is firing. External wire leads are furnished in the electrical junction box to allow separate power supplies to the pump and boiler controls or the two circuits (pump and controls) can be combined for connection to one 120 VAC, 20 AMP circuit for both. As shipped from the factory, the control system will turn on the boiler pump when the main power switch is placed in the “ON” position and the Run/Stop switch is in the “RUN” position.

INTERMITTENT PUMP OPERATION

(Optional)

An intermittent pump operation feature is available as an option. When equipped with this option, the boiler’s integral circulating pump will cycle on at each call for heat, before the burner fires. The pump will continue to operate while the burner is firing. The pump will run for a 30 second period after the temperature set point is satisfied. This will remove any residual heat from the combustion chamber before turning the pump off. See wiring dia- gram shipped with the unit.

PUMP MAINTENANCE: Inspect the pump every 6 months and oil as necessary. Use SAE30 non-detergent oil or lubricant specified by the pump manufacturer.

This high efficiency boiler MUST be installed with a primary/secondary piping system. This type of system uses the integral boiler circulating pump to supply flow to and from the boiler only. This pump is sized based on a specified minimum pipe diameter and maximum length. These limitations are critical to ensure proper flow through the boiler and secondary piping. The length of the secondary piping to and from the boiler to the main system loop must not exceed 70 equivalent feet (21.2 m) in length each direction when installed in 3" (76.2 mm) diameter pipe. Each elbow and fitting installed in the piping to and from the boiler will reduce the available equivalent length of pipe that can be installed. See Water Connection-Piping Lengths for calculation of equivalent length of pipe and reductions in length for installed fittings.

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Contents IFB/IFW-i&s-05 WarrantySpecial Instructions To Owner Table of Contents Do not Checking EquipmentWhat to do if YOU Smell GAS Owner WarningRecommended Service Clearances Installation Procedure Location of UnitTable a Clearances from Combustible ConstructionCombustion Air Direct from Outside Minimum Recommended Combustion Table BAIR Supply to Mechanical Room 500 in2 3226 cm2 667 in2 4303 cm2 000 in2 12,903 cm2Construction Air Filter Construction AIR FilterVenting Construction AIR Filter Kits Table CTable D Category IV Flue Pipe SizesCategory IV Venting Category IV Positive Pressure Venting SystemCategory IV Flue Pipe Materials Venting Guidelines for a Category IV VentExceed a maximum of 100 equivalent feet 30.5 m in length Drain Tee InstallationGeneral Category IV Vent Termination Clearances Vertical Venting Terminations Masonry Chimney InstallationsTable E Sidewall Venting TerminationsSidewall Vent Cap Kits Sidewall VentDirect Vent INTELLI-VENT Systems Location of a Sidewall Vent TerminationDirect Vent and Intelli-Vent Flue Air Inlet Pipe Sizes Table FAir Inlet Length of Air Inlet PipeCombined Combustion Air Inlet Points Vertical Direct Vent SystemsHorizontal Direct Vent Multiple Vertical Direct Vent InstallationsLocation of a Sidewall Air Inlet Cap Sidewall Combustion AIR InletTable G These are Multiple Horizontal Direct Vent InstallationsCombined Air Inlet Points Table HMaximum Length of an Intelli-Vent System Air Inlet Sidewall Input Flue Pipe Btu/hr SizeAir Inlet Sidewall Input Flue Pipe Horizontal INTELLI-VENT with Vertical Combustion AIRBtu/hr Size Cap Kit 500,000 SVK3026Location of a Rooftop Air Inlet Cap Vertical Combustion Horizontal INTELLI-VENT AIR InletTable J Table K GAS Supply GAS Pressure TestGAS Connection Table LMultiple Appliance Installations Gas Pipe Size Chart Recommended Gas Pipe Size Single Appliance InstallationsTable M Table NInstall Piping to Control GAS Manifold Pressure AdjustmentGAS Piping Checking GAS Supply PressureChecking Manifold GAS Pressure Water Connections Water ConnectionsMinimum Pipe Size Requirements Secondary Heat Exchanger Primary Heat ExchangerInlet and Outlet Connections Bypass Valve Synchronization Integral BypassIntegral Circulator Bypass Piping AssemblyOptional Intermittent Pump Operation Bypass Initial Set-up of Maximum Water FlowBtu/hr Input Temperature Rise Minimum Water TemperaturesTable P Bypass OperationTable Q Water Flow SwitchLOW Water Cutoff GAS Train and ControlsDiaphragm GAS Valve Ratio GAS Valve Relief ValveElectrical Connections Jacket AssemblyFront Control Panel Locations Access to Components and ControlsTransformer and Relay Locations Variable Frequency DriveExcel High GAS Pressure Switch LOW GAS Pressure Switch OptionalLOW AIR Pressure Switch Be used as a diagnostic indicator Default Values Pre-programmed in the Excel Temperature AdjustmentTable S To Activate the Manual OverrideConfiguring Command Display Password FunctionTable T Display Default Values Accessing the SIX Changeable Points from Command DisplayTotal Run Time Calculated Set PointSet Point Temp Sequencing TypeCommand Display Data Screen Table U Status PointsStatus Point Operational Modes Hot Surface Igniter OnOptional on Heating Boilers Only Outdoor Reset Function SelectionsEfficiency Optimized with Time Equalization Multiple Appliance InstallationsTable W Singly Terminated FTT Network Bus Topology SpecificationsInterfacing Multiple Appliances Additional Components Used to Interface Multiple Appliances Wire Termination for E-Bus ConnectionTypical Building Management System Diagram High Water Temperature Limit ControlIgnition Module Lockout Functions Service PartsHOT Surface Ignition System Table Y Diagnostic Status IndicationIgnition and Control Timings Table ZIndicator OPERATION/DIAGNOSTIC LIGHTS, Resets and SwitchesBurner Table AACombustion Air Blower and Transition Chamber Combustion AIR BlowerSystem Optional Condensate ManagementTable BB Condensate Drain Location On RearReplenishing the Neutralizer Condensate TestingCondensate Trap Installation 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 Freeze Protection for a Heating Boiler System If Required Heating Boiler InstallationsWater Treatment Water Connections Heating Boilers onlyPiping Lengths Primary Loop Circulator Pump SpecificationsBoiler Circulator Pump Limitations Circulator Pump OperationPRIMARY/SECONDARY Boiler Piping Minimum Boiler Water TemperaturesTable CC Boiler Temperature Rise Chart Table DDMaximum Flow for Heating Boiler Btu/hr Input Maximum FlowPlacing the Boiler Operation TEMPERATURE/PRESSURE GaugeTypical Heating Boiler Installations Boiler Operation Installation with a Chilled Water SystemBoiler Operating Temperature Control Typical Water Heater Piping with Storage Tank Water Velocity ControlMaximum Flow Rate Btu/hr Input Table EETable FF Water Chemistry Single Water Heater Piping with Two Storage Tanks Piping Multiple Unit InstallationsPump Operation Table GGHeat Exchanger Common ManifoldTable HH Thermostat SettingsCathodic Protection Optional Relief ValveThermal Expansion 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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