Lochinvar 065, 495 Installation Venting, General Information, Exhaust Fans, Venting Support

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Hydronic Heating Boilers and Domestic Water Heaters

INSTALLATION VENTING

Continued

General Information

Figure 9 - Combustion Air from Interior Space

All dimensions are based on net free area in square inches. Metal louvers or screens reduce the free area of a combustion air opening a minimum of approximately 25%. Check with louver manufacturers for exact net free area of louvers. Where two openings are provided, one must be within 12" (30 cm) of the ceiling and one must be within 12" (30 cm) of the floor of the mechanical room. Each opening must have a minimum net free area as specified in TABLE-C, page 12. Single openings shall be installed within 12" (30 cm) of the ceiling.

The combustion air supply must be completely free of any flammable vapors that may ignite or chemical fumes which may be corrosive to the appliance. Common corrosive chemical fumes which must be avoided are fluorocarbons and other halogenated compounds, most commonly present as refrigerants or solvents, such as Freon, trichlorethylene, perchlorethylene, chlorine, etc. These chemicals, when burned, form acids which quickly attack the heat exchanger finned tubes, headers, flue collectors, and the vent system. The result is improper combustion and a non-warrantable, premature appliance failure.

Exhaust Fans

Any fan or equipment which exhausts air from the boiler room may deplete the combustion air supply and/or cause a down draft in the venting system. Spillage of flue products from the venting system into an occupied living space can cause a very hazardous condition that must be corrected immediately. If a fan is used to supply combustion air to the boiler room, the installer must make sure that it does not cause drafts which could lead to nuisance operational problems with the boiler.

You must supply adequate combustion and ventilation air to this unit. You must provide minimum clearances for the vent terminal from adjacent buildings, windows that open, and building openings. Follow all requirements set forth in the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CAN/CGA Standard B149 Installation Code for Gas Burning Appliances and Equipment or applicable local building codes. Vent installations for connection to gas vents or chimneys must be in accordance with Part 7, "Venting of Equipment" of the above-mentioned standards.

IMPORTANT: Examine the venting system at least once each year. Check all joints and vent pipe connections for tightness. Also check for corrosion or deterioration. If you find any problems, correct them at once.

Venting Support

Support horizontal portions of the venting system to prevent sagging. Provide an upward slope of at least 1/4 inch per foot (21mm/m) on all horizontal runs from the unit to the vertical flue run or to the vent terminal on sidewall venting installations.

Do not use an existing chimney as a raceway if another appliance or fireplace is vented through the chimney. The weight of the venting system must not rest on the unit. Provide adequate support of the venting system. Follow all local and applicable codes. Secure and seal all vent connections. Follow the installation instructions from the vent material manufacturer.

Vertical Vent Termination Clearances and Location

The vent terminal should be vertical and exhaust outside the building at least 2 feet (0.61m) above the highest point of the roof within a 10 foot (3.05m) radius of the termination.

The vertical termination must be a minimum of 3 feet (0.91m) above the point of exit.

A vertical termination less than 10 feet (3.05m) from a parapet wall must be a minimum of 2 feet (0.61m) higher than the parapet wall.

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Contents Domestic Water Heaters Save this manual for future referenceHydronic Heating Boilers and Domestic Water Heaters Safety Information General Product InformationHydronic Heating Boilers and Domestic Water Heaters Product Identification Front and Rear ViewClearances from Combustible Construction InstallationBase for Combustible Floors Shut-Down and Draining Outdoor Boiler InstallationHydronic System Antifreeze Pump OperationFreeze Protection for a Heating Boiler System if required Installing Combustion Air FilterCombustion Air Filter Combustion Air Options One OpeningExhaust Fans Installation VentingGeneral Information Venting SupportTABLE-A Flue Pipe Sizes Vent System OptionsTable B TABLE-CFlue Outlet Piping Conventional Negative Draft VentingNegative Draft Common Venting SystemsOutdoor Installation Venting Masonry Chimney InstallationsOutdoor Vent/Air Inlet Location Table DOutdoor Vent Kits Outdoor Vent KitGas Piping Gas Pressure TestInput Max Min Connecting Gas Piping to Unit Gas Train and ControlsChecking Gas Supply Pressure Combination Gas ValvesVenting of Combination Gas Valves Gas Manifold Pressure Adjustment Measuring Gas Supply Pressure at Combination Gas ValveNET Manifold Pressure Regulator Pressure Less Front Chamber PressureRelief Valve Water Flow SwitchLow Water Cutoff If EquippedTable J Terminal Strip Connection OptionsNominal AMP Draw Data Water Connections Heating Boilers Only General Plumbing RulesPrimary/Secondary Boiler Piping Radiant Floor and Snow Melt Heating Systems Low Temperature Return Water SystemsInput LTV Valve Kit Btu/hr Table L Installation with a Chilled Water SystemSystem Temperature Rise Chart Based on Btu/hr Input 10ºF 20ºF 30ºF 40ºF 50ºF 60ºFBoiler Bypass Requirements Temperature/Pressure GaugeBoiler Flow Rate Filling the SystemOperation Lighting InstructionsLocating Temperature Control To Turn Off Gas To ApplianceSet Point Temperature Control SettingsTable M Maximum Set Point DeterminationShutdown Outdoor Air Reset OptionHigh-Fire Offset Outdoor Air Max O.A. MaxBoiler Application Temperature Control SensorsPlacement of Sensors Water Heater ApplicationHot Surface Igniter and Ignition Control Module Remote Wire ConnectionWire Maximum Gauge Table NIgnition and Control Timings Diagnostic Status IndicationHot Surface Ignition Control Module Ignition Module Lockout FunctionsTable O Status LED Diagnostic CodesTable P Domestic Water Heaters Required Temperature RiseTemperature Rise Chart Water Velocity ControlCirculating Pump Pipe Sizing ChartWater Chemistry Table RDomestic Water Potable Hot Water Temperature Control SettingsDomestic Water Temperatures Minimum Pump PerformanceOptional Relief Valve High Water Temperature Limit ControlLocation of Cold Water Supply Piping Connections Thermal ExpansionCleaning Maintenance Flue Gas Passageways Cleaning ProceduresElectrical Heat Exchanger CleaningCombustion and Ventilation Air Set Up Procedure Cleaning and MaintenanceAdjustment Procedure 495,000 1,255,000 Btu/hr Models Servicing Hot Surface Igniter and Ignition Module Sequence of Operation Ignition System CheckoutManual Reset High-Limit Thermostat Power SupplyON/OFF Rocker Switch Safety Device TerminalsIgnition Module Electronic Temperature ControllerHeat Transfer Process Gas Valves, Burner Schematic Diagram BTU/HRHI-LIMITS PWR SW Main Unit GAS Valves Blower Pressure Switch Wiring Diagram 15AMPSControl BOX Connections Control BOX Connections

000 - 2, 065, 495 specifications

Lochinvar 000 - 2,495,065 is a cutting-edge water heating solution designed to meet the needs of modern residential and commercial applications. This high-efficiency unit combines advanced engineering with robust technologies, providing unmatched performance and reliability.

One of the standout features of the Lochinvar 000 - 2,495,065 is its high thermal efficiency, which often exceeds 95%. Utilizing condensing technology, the unit harnesses heat from exhaust gases, allowing it to recover otherwise lost energy, thereby reducing operational costs significantly. This efficiency not only lowers energy bills for users but also lessens the environmental impact by minimizing greenhouse gas emissions.

The Lochinvar 000 - 2,495,065 is equipped with a lightweight stainless steel heat exchanger. This construction ensures exceptional corrosion resistance and longevity, extending the lifespan of the unit while maintaining optimal performance. The stainless steel design also contributes to faster heating times, making it ideal for high-demand environments.

In terms of control technologies, the Lochinvar 000 - 2,495,065 features an intuitive touchscreen interface. This user-friendly design allows for seamless operation, real-time monitoring, and easy adjustments to temperature settings. Additionally, it facilitates remote diagnostics, promoting efficient maintenance and reducing downtime, which is crucial for busy facilities.

For enhanced safety, the Lochinvar 000 - 2,495,065 includes multiple safety mechanisms, such as over-temperature protection, flame safeguard, and leak detection systems. These safety features ensure secure operation and give users peace of mind.

Moreover, the unit is compatible with various fuel sources, including natural gas and propane, making it versatile and adaptable to different infrastructure requirements. This flexibility ensures that the Lochinvar 000 - 2,495,065 can be integrated into various settings, from residential homes to large commercial buildings.

Another significant characteristic is its compact design, allowing for easy installation in tight spaces. The footprint of the Lochinvar 000 - 2,495,065 makes it an ideal solution for applications where space is at a premium, without compromising on performance.

In summary, Lochinvar 000 - 2,495,065 represents a premium choice for water heating solutions, merging advanced technologies, high efficiency, and user-friendly design to cater to a wide range of heating needs while ensuring safety and sustainability.
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