Lochinvar 400-801 operation manual Determine boiler location, Installation must comply with

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1 Determine boiler location

Outdoor Knight XL Installation & Operation Manual

Installation must comply with:

•Local, state, provincial, and national codes, laws, regulations, and ordinances.

•National Fuel Gas Code, ANSI Z223.1 – latest edition.

•Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1, when required.

•National Electrical Code.

NOTICE

The Outdoor Knight XL gas manifold

and controls met safe lighting and other

 

 

performance criteria when the boiler

 

underwent tests specified in ANSI Z21.13

 

– latest edition.

￿CAUTION

The unit must not be installed in an area that is enclosed by walls or a fence that will block free wind movement around the appliance. Free movement of wind around the outdoor unit is required to carry away the flue products and provide combustion air. The flue outlet/ combustion air inlet of an outdoor unit must not be installed closer than 10 feet from an inside corner of an L-shaped structure. Walls or enclosed fencing may cause eddy currents which can recirculate the flue products into the combustion

￿WARNING

Outdoormodelsmustbeinstalledoutdoors only and must use the outdoor vent assembly supplied by the manufacturer. Personal injury or product damage may result if any other venting is used or if an outdoor model is used indoors. All covers, doors and jacket panels must be properly installed to ensure proper operation and prevent a hazardous condition.

CAUTION

air inlet. Recirculation of flue products may cause operational problems, bad combustion or non-warrantable damage to controls.

Locate the unit at least 3 feet (0.91m) outside any overhang.

Do not install in locations where rain from building runoff drains will spill onto the unit.

￿WARNING

This product contains a condensate management and disposal system that may be subject to freezing if exposed to sustained temperatures below 32°F. Precautions should be taken to protect the condensate trap and drain lines during extended periods of outdoor temperatures below 32°F.

￿WARNING

Do not locate the unit so that water from sprinklers may spray directly onto it. Water may damage controls or other electrical components.

Do not install the unit under a deck.

Do not install the unit in a well, stairwell,

Before locating the boiler, check:

1.Check for nearby connection to:

•System water piping

•Gas supply piping

•Electrical power

2.- Keep venting areas free of obstructions.

- Keep area clean and free of combustible and flammable materials.

- To avoid a blocked air inlet or blocked flue condition, keep the outdoor air inlet and flue outlet clear or leaves, debris, etc.

CAUTION

Do not install outdoor models directly on

the ground. You must install the outdoor

 

 

unit on a level concrete, brick, block, or

 

pressure-treated wood platform.

alcove, courtyard or other recessed area.

Do not install outdoor units on stack frames. Failure to comply with the above may result in severe personal injury, death or substantial property damage.

3.Check area around the boiler. Remove any combustible materials, gasoline and other flammable liquids.

￿ WARNING

Failure to keep boiler area clear and free

of combustible materials, gasoline, and

 

other flammable liquids and vapors can

 

result in severe personal injury, death, or

 

substantial property damage.

4. If a new boiler will replace an existing boiler, check for

and correct system problems, such as:

• System leaks causing oxygen corrosion or heat exchanger

￿CAUTION

8

Do not locate unit so that high winds can deflect off of adjacent walls, buildings or shrubbery causing recirculation. Recirculation of flue products may cause operational problems, bad combustion or damage to controls. Locate unit at least 3 feet (0.91m) from any wall or vertical surface to prevent wind conditions from affecting performance.

cracks from hard water deposits.

• Incorrectly-sized expansion tank.

• This unit is not intended for installations where

temperatures may reach below 32°F (0°C). Exposure to

freezing temperatures will cause the system and boiler

to freeze and leak.

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Contents Outdoor Knight XL Models 400 Contents When servicing boiler Please read before proceedingOutdoor Knight XL How it works Stainless steel heat exchangerModel Models 601 Ratings Outdoor Knight XL Boiler Ahri RatingBefore locating the boiler, check Installation must comply withDetermine boiler location Provide clearances Outdoor vent / air intake locationFlooring and foundation Prevent combustion air contaminationRemove boiler from wood pallet Install flue pipe assembly Models 400Prepare boiler 3Install flue pipe assembly Models 701 Models 7014Installing Propane Orifice Model Gas conversions ModelModels 601 Leveling the boilerHydronic piping TEE with 1 Fitting on TOP Nipple Close Nipple Flow switch adjustment Near boiler piping componentsVariable speed pump option Near boiler piping connectionsCirculator sizing 20F 25F 30F 35F Model Head FeetPressure 7Single Boiler Multiple Temperatures 8Single Boiler Primary/Secondary Piping Number of Units Manifold Pipe Sizes in Inches mm10Multiple Boilers Primary/Secondary Piping Temperature Wires to Loop Sensors 120VAC to Connecting gas supply piping Gas connectionsNatural gas Propane GasCheck inlet gas supply InchesGas valve replacement Gas pressureField wiring Installation must comply withLine voltage connections Low voltage connectionsOutdoor temperature sensor High gas pressure switchLow gas pressure switch ThermostatFlow switch Alarm contactsWiring of the cascade ModBus3Low Voltage Field Wiring Connections Condensate disposal Condensate drainFreeze protection when used Start-upCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuitsInspect/fill condensate system Inspect/check condensate lines and fittingsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boilerFor Your Safety Read Before Operating Set space heating operation Natural Gas PropaneConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation Operating information GeneralHow the boiler operates How the control module operatesTemperature control Protection featuresBoiler temperature regulation Outdoor reset operation, if used CascadeSequence of operation Operation DisplayStandby, ready to start a new cycle Access modes InstallerOutdoor Knight XL control module UserCall for Heat Information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Flue vent system and air piping Check water systemCheck expansion tank Check boiler relief valveCheck ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesCheck flame signal Cleaning boiler heat exchangerReview with owner Model Kit Part Component Number DescriptionDiagrams High Voltage2Ladder Diagram
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400-801 specifications

The Lochinvar 400-801 is a high-efficiency commercial boiler that embodies advanced engineering and cutting-edge technology. Designed for a variety of commercial applications, this boiler is known for its reliability, efficiency, and robust performance.

One of the standout features of the Lochinvar 400-801 is its high thermal efficiency, which can reach up to 99%. This efficiency not only reduces fuel consumption but also lowers operating costs, making it an economical choice for businesses seeking to minimize overhead. The boiler employs a stainless steel fire-tube heat exchanger that ensures optimal heat transfer and durability. This construction allows for enhanced resistance to corrosion, thereby extending the boiler's lifespan.

The Lochinvar 400-801 is equipped with advanced control technologies that enhance its performance. With its built-in SMART SYSTEM control, users can easily monitor and manage the boiler’s operations, optimizing performance while ensuring ease of use. This control system features a user-friendly interface that provides real-time data, including temperature settings, pressure readings, and operational status, allowing for quick diagnostics and efficient troubleshooting.

Safety is paramount in the design of the Lochinvar 400-801. The boiler includes a comprehensive safety system that incorporates multiple safety interlocks and a venting system that prevents backflow and ensures safe exhaust. Moreover, the unit is designed to operate with minimal noise, making it suitable for environments where noise reduction is crucial.

Installation and maintenance of the Lochinvar 400-801 are straightforward, thanks to its compact design and multiple venting options. The low-profile construction allows for flexibility in placement, making it an ideal fit for tight spaces. Maintenance tasks are simplified with accessible components, minimizing downtime and ensuring the system operates efficiently over its lifespan.

In conclusion, the Lochinvar 400-801 stands out in the commercial boiler market with its blend of efficiency, reliability, and innovation. With its advanced technologies and features, businesses can achieve significant energy savings while ensuring comfortable and consistent heat for various applications. The Lochinvar 400-801 is an investment in quality and performance, backed by a well-established brand in the heating industry. Whether for a new installation or a replacement, this boiler offers a comprehensive solution for commercial heating needs.
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