Lochinvar 801, 400 Maintenance Maintenance and annual startup, Service technician, Instructions

Page 72

Installation & Operation Manual

12 Maintenance Maintenance and annual startup

Table 12A Service and Maintenance Schedules

Service technician

(see the following pages for instructions)

 

General:

 

 

 

 

 

 

• Address reported problems

 

 

• Inspect interior; clean and vacuum if

 

necessary;

 

 

 

 

 

• Clean condensate trap and fill with fresh

 

water

 

 

 

 

 

 

• Check

for

leaks

(water, gas,

flue,

 

condensate)

 

 

 

 

 

• Verify flue and air lines in good condition

UP

and sealed tight

 

 

 

• Check

system water

pressure/system

-

piping/expansion tank

 

 

START

• Check control settings

 

 

• Check

ignition

and

flame

sense

ANNUAL

electrodes (sand off any deposits; clean

• Perform

start-up

checkout

and

 

and reposition)

 

 

 

 

• Check wiring and connections

 

 

performance verification per Section 10.

 

• Flame inspection (stable, uniform)

 

• Flame signal (at least 10 microamps at

 

high fire)

 

 

 

 

 

• Clean the heat exchanger if flue

 

temperature is more than 54°F (30°C)

 

above return water temperature.

 

If combustion or performance indicate need:

•Clean heat exchanger

•Remove and clean burner using compressed air only

•Clean the blower wheel

Owner maintenance

(see the Knight XL User’s Information Manual for

instructions)

Daily

• Check boiler area

• Check pressure/temperature

 

 

gauge

 

 

 

• Check vent piping

 

• Check air piping

Monthly

• Check air and vent termination

 

screens

 

• Check relief valve

 

• Check condensate drain system

 

• Check air vents

 

 

Periodically

• Test low water cutoff (if used)

 

• Reset button (low water cutoff)

 

 

Every

• Check boiler piping (gas and

water) for leaks

6 months

• Operate relief valve

 

 

 

End

• Shut boiler down (unless boiler

of season

used for domestic hot water)

months

 

 

 

72

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Contents Models 400 Contents When servicing boiler Please read before proceedingKnight XL How it works Stainless steel heat exchangerModel Models 601 Ratings Knight XL Boiler =B=R RatingInstallation must comply with Closet and alcove installationsDetermine boiler location Before locating the boiler, checkAlcove Installation Residential garage installation Provide air openings to roomVent and air piping Flooring and foundationWhen using an existing vent system to install a new boiler Products to avoidAreas likely to have contaminants When removing a boiler from existing common vent system Prepare boiler Remove boiler from wood palletGas conversions Model Models 601 Leveling the boilerGeneral venting Direct venting options Vertical Vent Install vent and combustion air piping Requirements for installation in CanadaInstalling vent or air piping General ventingPVC/CPVC air intake/vent connections Vent Pipe, and FittingsAir inlet pipe materials Stainless steel ventFasNSeal Saf-T Vent Stainless Steel Air Intake/vent ConnectionsOptional room air Removing from existing ventModel Description Kit Number Air contaminationIf using the alternate sidewall termination Sidewall direct ventingVent/air termination sidewall Determine location3AClearance to Gravity Air Inlets Prepare wall penetrations Bird Screen TypicalPrepare wall penetrations Alternate Field Supplied Option Multiple vent/air terminationsTermination and fittings Sidewall termination installation Description and usage9Concentric Vent Dimensional Drawing Models 400 11Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations Multiple vent/air terminationsVertical termination installation 4Concentric Vertical TerminationMultiventing vertical terminations Mm see -9,Alternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase 10Existing Vent as a ChaseHydronic piping System water piping methods General piping informationLow water cutoff device Chilled water systemHydronic piping Flow switch adjustment Near boiler piping componentsNear boiler piping connections Circulator sizingVariable speed pump option Head Feet Pressure20F 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 Loop 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 Louver proving switchHigh gas pressure switch Low gas pressure switchFlow switch Alarm contactsWiring of the cascade ModbusManual 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 PropaneVerify DHW mode Set domestic hot water DHW operationConfiguration of the cascade Operating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if used CascadeSequence of operation Operation DisplayStandby, ready to start a new cycle Knight XL control module Navigation DialAccess modes InstallerUser Call for Heat Information Dial Function Maintenance Maintenance and annual startup Service technicianInstructions Maintenance Address reported problemsClean condensate trap Check all piping for leaks Inspect boiler areaFlue 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 LOW Voltage 120 VAC High Voltage2Ladder Diagram Page KBXII-I-O Rev D
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400, 801 specifications

The Lochinvar 801,400 is a cutting-edge solution in the realm of high-efficiency commercial water heating. This model represents a significant advancement in the design and functionality of water heaters, catering primarily to the demands of large-scale facilities like hotels, hospitals, and large industrial operations.

One of the standout features of the Lochinvar 801,400 is its impressive heating capacity, which can produce up to 801,400 BTUs, making it suitable for high-demand applications. This output is crucial for establishments that require a consistent supply of hot water, such as commercial kitchens and laundry facilities. The robust design ensures that it can handle peak demand periods without compromising performance.

Another significant aspect is the innovative use of advanced technology in its operation. The Lochinvar 801,400 integrates smart controls that enhance its efficiency and ease of operation. These controls allow for precise monitoring and adjustment of water temperatures, ensuring that the system operates within optimal parameters while maximizing energy savings. The intelligent monitoring system can provide real-time updates, making it easier for facility managers to keep track of performance and address maintenance needs proactively.

The construction of the Lochinvar 801,400 incorporates durable materials that not only enhance the longevity of the unit but also offer resistance to corrosion and wear. This durability translates into lower maintenance costs and an extended lifespan for the unit, making it a worthwhile investment for businesses.

Moreover, the Lochinvar 801,400 is designed with energy efficiency in mind. It boasts a high thermal efficiency rating, which reduces operational costs and minimizes the carbon footprint of heating operations. This efficiency is critical in today’s environmentally conscious market, where businesses are seeking to reduce their energy consumption and comply with strict regulations.

The design of the Lochinvar 801,400 also prioritizes safety, featuring innovative safety controls and fail-safes that protect both the unit and the users.

In summary, the Lochinvar 801,400 offers a combination of high capacity, advanced technology, durability, and energy efficiency, making it an excellent choice for commercial water heating solutions. As industries continue to evolve, the demand for reliable and efficient water heating solutions like the Lochinvar 801,400 will only increase.
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