Lochinvar 400-801 operation manual 10Multiple Boilers Primary/Secondary Piping

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Outdoor Knight XL Installation & Operation Manual

3 Hydronic piping

Figure 3-10Multiple Boilers - Primary/Secondary Piping

 

 

 

Number of Units

 

 

Model

2

3

4

5

6

7

8

 

 

Manifold Pipe Sizes in Inches (mm)

 

400

2 1/2 (64)

3 (76)

3 1/2 (89)

4 (102)

4 (102)

5 (127)

6 (152)

501

3 (76)

3 1/2 (89)

4 (102)

5 (127)

5 (127)

6 (152)

6 (152)

601

3 1/2 (89)

4 (102)

5 (127)

5 (127)

6 (152)

6 (152)

8 (203)

701

3 1/2 (89)

5 (127)

5 (127)

6 (152)

6 (152)

8 (203)

8 (203)

801

4 (102)

5 (127)

5 (127)

6 (152)

8 (203)

8 (203)

8 (203)

MAY SUBSTITUTE LOW LOSS HEADER AIR SEPARATOR

DRAIN POINT (TYPICAL)

SYSTEM SUPPLY SENSOR (WHEN USED)

BALL VALVE (TYPICAL)

M E T S Y S M O R F

4 D E E C X E O T T O N

T R A P "A 2 1 F .O X A M R O IA D E IP P

SYSTEM CIRCULATOR

MAKE UP WATER

Y-STRAINER (TYPICAL) (RECOMMENDED)

M

EXPANSION

E

T

S

 

Y

TANK

S

TO

 

BACK FLOW

 

PREVENTER

 

PRESSURE REDUCING

 

VALVE

 

PRESSURE GAUGE

 

INDIRECT DHW

 

TANK

 

ANTI-SCALD

 

MIXING VALVE

 

HOT WATER OUT

 

DOMESTIC

 

HOT WATER

 

CIRCULATOR

BOILER CIRCULATOR

COLD WATER IN

(TYPICAL)

 

FLOW CHECK

UNION (TYPICAL)

VALVE (TYPICAL)

 

BOILER 4 (MEMBER 3)

 

BOILER 3

 

(MEMBER 2)

BOILER 2

 

(MEMBER 1)

 

BOILER 1

IMG00417

(LEADER)

 

PRESSURE RELIEF

 

VALVE

 

DRAIN

 

TEMPERATURE /

 

PRESSURE GAUGE

 

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.

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.

System flow should always remain higher than the required flow for the boiler(s) when the boiler(s) is in operation to prevent short cycling and high limit issues.

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 When servicing boiler Please read before proceedingOutdoor Knight XL How it works Stainless steel heat exchangerModel Models 601 Ratings Outdoor Knight XL Boiler Ahri RatingDetermine boiler location Installation must comply withBefore locating the boiler, check Flooring and foundation Provide clearancesOutdoor vent / air intake location Prevent combustion air contaminationPrepare boiler Install flue pipe assembly Models 400Remove boiler from wood pallet 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 componentsCirculator sizing Near boiler piping connectionsVariable speed pump option Pressure Head Feet20F 25F 30F 35F Model 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 pressureLine voltage connections Field wiringInstallation must comply with Low voltage connectionsLow gas pressure switch Outdoor temperature sensorHigh gas pressure switch ThermostatWiring of the cascade Flow switchAlarm contacts ModBus3Low Voltage Field Wiring Connections Condensate disposal Condensate drainCheck/control water chemistry Freeze protection when usedStart-up Fill and test water systemInspect/fill condensate system Check for gas leaksCheck thermostat circuits Inspect/check condensate lines and fittingsIf boiler does not start correctly Final checks before starting the boilerStart the boiler Check system and boilerFor Your Safety Read Before Operating Set space heating operation Natural Gas PropaneSet domestic hot water DHW operation Verify DHW modeConfiguration of the cascade How the boiler operates Operating informationGeneral 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 Outdoor Knight XL control module Access modesInstaller UserCall for Heat Information Dial Function Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check expansion tank Flue vent system and air pipingCheck water system Check boiler relief valveCheck control settings Check ignition ground wiringCheck all boiler wiring Inspect ignition and flame sense electrodesReview with owner Check flame signalCleaning boiler heat exchanger Model Kit Part Component Number DescriptionDiagrams High Voltage2Ladder 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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