Lochinvar 399 operation manual Operation of the cascade

Page 66

Installation & Operation Manual

11 Operating information

Status Display Screens (cont’d)

Operation of the cascade

The boiler designated as the Leader will have two additional display screens that can be viewed. These screens will provide information regarding the operation of the Cascade. Each screen will contain two viewable items. The following is a description of the individual items and what they can display:

Screen

 

Display shows:

Description

 

 

Cas: Off

The Leader control has been turned off by the Enter/Reset button on

 

 

the Smart System display.

 

 

 

 

 

 

 

 

 

Cas: Standby

The Leader boiler has not received a call for heat from a remote

 

 

thermostat.

 

 

 

 

 

 

 

 

 

Cas: 127.4F (130)

The Cascade is now active. The system supply temperature will be

 

 

displayed. The Cascade set point will be displayed in parenthesis.

 

 

 

 

 

 

 

 

 

Cas: Setpoint Met

The Cascade has met the water temperature set point, but is still

 

 

receiving a call for heat from a remote thermostat.

 

 

 

 

 

 

 

 

 

Cas: No Members

The Leader control could not detect any Member controls to

#9

 

participate in the Cascade.

 

 

 

 

 

 

 

 

Cas: S6 Not Present

The system supply sensor is not connected to the Leader boiler.

 

 

 

 

 

 

PMP: Off

The Leader control has not received a call for heat from a remote

 

 

thermostat and has not powered the system pump.

 

 

 

 

 

 

 

 

 

PMP: On

The Leader control has received a call for heat from a remote

 

 

thermostat and has powered the system pump.

 

 

 

 

 

 

 

 

 

PMP: Delay

The system call for heat has been satisfied and the system pump is

 

 

running for a fixed time to remove any residual heat.

 

 

 

 

 

 

 

 

Press the Next ￿ arrow key on the SMART SYSTEM display to access Screen #10.

 

 

 

 

#10

 

The first percentage shows the firing rate that is being sent to the last

Cas Pow: ***% ***%

boiler called on. The second percentage shows the total power

 

available to the Cascade.

 

 

 

Shows the number of boilers connected to the Cascade. The Leader is

 

designated as 0. Members will be designated 1 - 7. If a “-“ is used in

Present: 01234567

place of a number, that boiler is either not connected, or in a lockout

mode and not available for the Cascade. If a “d” is used in place of a

 

Example:

number, that boiler is handling a DHW demand and is not available

for the Cascade. If the number is flashing, then that boiler is providing

Present: 23----d1

heat to the Cascade. As the lead boiler is changed from day to day, that

 

 

boiler’s address will be shown first in the string of numbers. In the

 

example, boilers 0 - 3 are present, boiler 2 is the lead boiler, and boiler

 

0 is heating an indirect DHW tank.

Press the Next ￿ arrow key on the SMART SYSTEM display to roll back to Screen #1. At any point if you wish to access an earlier screen, press the Previous ￿ arrow key on the SMART SYSTEM display.

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Contents Models 399 Save this manual for future referenceContents When servicing boiler Please read before proceedingKnight XL How it works Air pressure switch Pump relay board ModelModels 600 Ratings Knight XL Boiler =B=R RatingDetermine boiler location Installation must comply withCloset and alcove installations Before locating the boiler, checkFor closet installations, Cpvc or TOPVent and air piping Residential garage installationProvide air openings to room 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 Model Prepare boilerRemove boiler from wood pallet Gas conversionsLeveling the boiler Models 600General venting Direct venting options Vertical Vent Installing vent or air piping Install vent and combustion air pipingRequirements for installation in Canada General ventingPVC/CPVC air intake/vent connections Approved Stainless Steel Vent ManufacturersMake Air 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 contaminationVent/air termination sidewall If using the alternate sidewall terminationSidewall direct venting 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 399 11Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations 2Vertical Terminations with Multiple BoilersVertical termination installation 4Concentric Vertical TerminationMultiventing vertical terminations Mm see -9,Hydronic piping Hydronic piping Flow switch adjustment Near boiler piping connectionsCirculator sizing 20F 25F 30F 35F Head FeetPressure 399 500 600 700 800Near boiler piping components 7Single Boiler Primary/Secondary Piping Number of Units Model Manifold Pipe Sizes in Inches mm Connecting gas supply piping Gas connectionsNatural gas Propane GasIron Pipe Nominal Natural Gas Pipe Capacity ChartCheck inlet gas supply Length of Pipe in Straight FeetGas valve replacement Gas PressureField wiring Installation must comply withLine voltage connections High gas pressure switch Outdoor temperature sensorAuxiliary device proving switch Low gas pressure switchSystem supply sensor Alarm contactsWiring of the cascade Boiler management system3Low 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 PropaneConfiguration of the cascade Set domestic hot water DHW operationOperating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if usedCascade DHW, Night Setback, and Ramp Delay operation with Cascade Sequence of the cascadeSequence of operation BLR IgnitionKnight XL control module ShutdownUser Access modesInstaller To save parameters and exit programmingSet Point Met ServiceStandby PrepurgeSYS ***.*F Control will display the actual fan motor RPMDelay 10V in **.VdcOperation of the cascade Maintenance Maintenance and annual startup Service technicianOwner maintenance Clean condensate trap Check all piping for leaks MaintenanceAddress reported problems Inspect boiler areaCheck 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 Page Page KBX-I-O Rev H
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399 specifications

Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 is a cutting-edge boiler designed for commercial heating applications. With its robust construction and high efficiency, this model stands out in the crowded market of heating solutions.

One of the main features of the Lochinvar 999 - 750 is its exceptional thermal efficiency rating. The unit incorporates advanced condensing technology that allows it to recover heat from flue gases, which helps in achieving efficiency levels of up to 99%. This efficiency not only reduces energy consumption but also lowers operational costs, making it an excellent investment for businesses looking to minimize their carbon footprint.

The boiler is designed to provide a powerful output of 750 kW, ensuring it meets the heating demands of larger buildings or commercial spaces. Its capacity makes it suitable for a range of applications including schools, hospitals, and industrial facilities. Moreover, the unit features a built-in cascading system that enables multiple boilers to be connected, enhancing system reliability and flexibility.

In terms of technology, the Lochinvar 999 - 750 is equipped with a user-friendly touchscreen interface. This innovative control system allows operators to monitor and adjust settings with ease, providing real-time performance data and alerts for maintenance needs. The intelligent controls optimize operation to match the heating load, further enhancing energy efficiency.

Safety is a top priority with this model. It is built with multiple safety features such as automatic shut-off valves, pressure relief valves, and flame monitoring systems, ensuring safe operation under various conditions. The unit also adheres to stringent industry standards and regulations, making it a reliable choice for commercial applications.

Furthermore, the Lochinvar 999 - 750 is designed with serviceability in mind. Its compact footprint and accessible components simplify maintenance, reducing downtime and associated costs. The unit also supports a variety of fuel sources, including natural gas, propane, and biodiesel, providing flexibility to meet different facility requirements.

In summary, the Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 represents a blend of efficiency, reliability, and safety in commercial heating. Its advanced technologies and thoughtful design make it a powerful solution for various heating needs, making it an ideal choice for businesses aiming for excellence in energy management and operational efficiency.
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