Lochinvar 400-801 operation manual Temperature Wires to Loop Sensors 120VAC to

Page 23

Outdoor Knight XL Installation & Operation Manual

3 Hydronic piping (continued)

Figure 3-11Single Boiler - Multiple Temperatures with DHW Piped as a Zone

 

TEMPERATURE

WIRES TO

 

 

LOOP SENSORS

 

 

TEMPERATURE

LOOP 3

 

 

 

 

 

 

 

LOOP 2

 

 

 

 

TEMPERATURE

 

 

 

 

 

LOOP 1

 

 

 

 

 

LOOP SENSOR (3X)

 

 

 

120VAC TO

 

 

 

 

 

 

MAKE UP WATER

 

 

 

PUMPS

 

 

 

 

 

 

AIR SEPARATOR

 

 

 

 

BACK FLOW

 

 

 

 

 

PREVENTER

 

 

 

TO

 

 

 

 

 

 

PRESSURE

BALL VALVE

 

 

SYSTEM

FROM

 

 

 

GAUGE

 

 

 

(TYPICAL)

 

 

 

 

 

 

SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MULTI-TEMP

 

 

 

 

 

LOOP CONTROL

 

 

 

 

 

(OPTIONAL)

 

 

 

 

Y-STRAINER

24VAC SIGNAL

 

 

 

 

(RECOMMENDED)

TO MIXING VALVES

 

 

 

 

 

 

 

 

 

FLOW CHECK

 

 

 

 

 

VALVE (TYPICAL)

 

PRESSURE

 

 

 

BOILER CIRCULATOR

 

 

 

 

 

REDUCING

 

 

 

 

 

VALVE

 

 

 

 

 

DRAIN POINT

 

 

 

 

SHIELDED CABLE

(TYPICAL)

 

 

 

 

 

 

 

 

TO BOILER CONTROL

EXPANSION

 

 

 

 

 

 

 

 

 

TANK

 

 

 

 

 

INDIRECT DHW

 

 

 

 

 

TANK

 

 

 

 

 

HOT WATER OUT

 

 

 

 

 

ANTI-SCALD

 

 

 

 

BOILER

MIXING VALVE

DOMESTIC

 

UNION (TYPICAL)

 

 

COLD WATER IN

HOT WATER

 

 

 

 

 

 

 

CIRCULATOR

 

DRAIN

 

 

 

 

 

 

 

PRESSURE RELIEF

TEMPERATURE / PRESSURE

 

IMG00412

 

VALVE

 

GAUGE

 

CAUTION

CAUTION

NOTICE

NOTICE

NOTICE

Indirect water heaters are capable of transferring a limited number of Btu’s into the water. Ensure boiler output does not not exceed indirect water heater transfer capabilities.

Mixing valves are required for the protection of low temperature loops.

Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.

Please note that the installer is responsible for ensuring DHW prioritization when piped as a zone.

Please note that these illustrations show an indoor tank to demonstrate piping concept only.

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Contents Outdoor Knight XL Models 400 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Outdoor Knight XL How it worksModel Models 601 Outdoor Knight XL Boiler Ahri Rating RatingsBefore locating the boiler, check Installation must comply withDetermine boiler location Prevent combustion air contamination Provide clearancesOutdoor vent / air intake location Flooring and foundationRemove boiler from wood pallet Install flue pipe assembly Models 400Prepare boiler Models 701 3Install flue pipe assembly Models 701Gas conversions Model 4Installing Propane Orifice ModelLeveling the boiler Models 601Hydronic piping TEE with 1 Fitting on TOP Nipple Close Nipple Near boiler piping components Flow switch adjustmentVariable speed pump option Near boiler piping connectionsCirculator sizing 20F 25F 30F 35F Model Head FeetPressure 7Single Boiler Multiple Temperatures 8Single Boiler Primary/Secondary Piping Manifold Pipe Sizes in Inches mm Number of Units10Multiple Boilers Primary/Secondary Piping Temperature Wires to Loop Sensors 120VAC to Gas connections Connecting gas supply pipingPropane Gas Natural gasInches Check inlet gas supplyGas pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsThermostat Outdoor temperature sensorHigh gas pressure switch Low gas pressure switchModBus Flow switchAlarm contacts Wiring of the cascade3Low Voltage Field Wiring Connections Condensate drain Condensate disposalFill and test water system Freeze protection when usedStart-up Check/control water chemistryInspect/check condensate lines and fittings Check for gas leaksCheck thermostat circuits Inspect/fill condensate systemCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctlyFor Your Safety Read Before Operating Natural Gas Propane Set space heating operationConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation How the control module operates Operating informationGeneral How the boiler operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationStandby, ready to start a new cycle User Access modesInstaller Outdoor Knight XL control moduleCall for Heat Information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check boiler relief valve Flue vent system and air pipingCheck water system Check expansion tankInspect ignition and flame sense electrodes Check ignition ground wiringCheck all boiler wiring Check control settingsModel Kit Part Component Number Description Check flame signalCleaning boiler heat exchanger Review with ownerHigh Voltage Diagrams2Ladder Diagram
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Manual 48 pages 50.5 Kb

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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