Lochinvar 399 operation manual Diagrams, High Voltage

Page 72

Installation & Operation Manual

13 Diagrams

Figure 13-1Wiring Diagram

ALARM BELL

SILENCING SWITCH

LOW VOLTAGE

 

120 VAC

 

 

 

 

 

 

 

 

 

BOX DEPICTS

 

 

 

 

 

HIGH VOLTAGE

OPTIONAL ITEMS

 

 

 

 

 

 

 

 

 

 

INTEGRATED CONTROL

 

 

 

 

 

 

 

 

 

 

X3

 

 

 

 

 

 

 

JUNCTION

PC

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

X8

 

 

BOARD

 

BOX

INTERFACE

 

 

 

 

 

 

 

 

CONNECTION BOARD

 

 

 

OR

 

OR

 

 

 

 

 

X1-3

K1

 

AUX.

 

 

 

CN2-4

CN1-5

DHW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DEVICE

 

 

CN2

 

 

 

CN2-1

 

OR

PUMP

PILOT

R

CN2-16

 

 

 

 

 

 

CN1-6

 

SUPPLY

 

 

 

 

X1-4

BR

 

BR

 

 

 

 

Y

 

K2

 

 

 

CN2-15

CN4-8

X6-8

CN2-2

CN1-3

BOILER

 

 

 

 

AUX.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BR

PUMP

DEVICE

 

CN2-14

 

 

 

 

 

 

CN1-4

 

PROVING

 

CN2-13

CN4-2

OR

X6-10

X1-2

PR

K3

PR

 

 

 

 

CN2-3

CN1-1

SYSTEM

 

 

 

P

 

 

GAS

 

 

 

 

 

 

 

 

CN2-12

CN4-9

X6-4

 

 

PR

PUMP

PRESSURE

 

 

 

 

 

 

 

 

 

BK

 

 

 

 

CN1-2

 

SWITCH

 

 

CN4-3

X6-5

 

 

 

 

 

CN2-11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SOLENOID

 

 

 

RESISTOR

 

 

 

 

 

 

 

 

 

VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLOW

 

 

 

 

 

 

 

ON/OFF

 

 

 

 

 

CN2-10

 

 

 

 

 

SWITCH

 

 

 

L

 

SWITCH

 

 

 

X1-6

BK

 

BK

 

 

 

 

 

 

 

 

 

 

120V

 

 

CN2-9

 

 

 

W

 

 

W

GND

GND

BELL JUMPER

 

 

 

 

 

 

 

PR

 

X1-5

 

 

SUPPLY

ALARM

CN2-8

CN4-10

X3-4

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

CONTACTS

 

 

CN4-4

PR

X3-2

 

 

 

 

 

 

 

 

 

 

CN2-7

 

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

CN4-11 R

 

 

 

 

 

 

 

 

 

 

 

 

X3-1

X1-8

 

 

 

 

 

 

RUN-TIME

CN2-6

R

 

 

 

 

 

 

CONTACTS

 

 

 

R

 

X1-1

 

 

 

 

 

 

CN2-5

CN4-12

X3-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DHW

CN2-4

 

 

 

 

 

R W

G

 

 

 

 

THERMOSTAT

 

 

 

 

 

 

 

 

 

 

 

CN4-5

W

X6-1

 

BLOWER

 

 

 

 

 

 

 

CN2-3

 

 

1 2 3

 

 

 

 

 

 

 

 

 

 

 

 

 

ROOM

 

BL

 

 

 

 

 

 

 

 

 

CN4-7

X6-2

 

 

 

 

 

 

 

 

THERMOSTAT

CN2-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZONE

 

 

CN4-13

GY

X6-6

 

 

1 2 3 4 5

 

 

 

 

 

CONTROL

CN2-1

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X5-5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

X5-13

 

 

 

 

 

 

 

 

 

CN5-1

 

 

 

W

 

 

 

 

 

 

 

24 VAC

 

CN4-14

 

 

X5-6

 

 

 

 

 

 

LOW

 

 

CN5-3

 

 

 

BK

 

 

 

 

 

 

 

 

 

 

 

X5-12

 

 

 

 

 

 

WATER

 

 

CN5-4

 

BR

 

BL

 

 

BL

 

 

 

 

 

CN4-6

X6-9

 

 

 

 

 

 

CUT-OFF

 

 

Y

X5-7

 

 

MANUAL RESET

 

 

 

 

PR

 

COM

 

CN5-2

CN4-1

 

X6-3

X5-14

PR

 

 

HI-LIMIT

 

 

 

 

 

 

OR

 

 

 

 

CN5

CN4

 

 

X5-11

OR AIR PRESS. SWITCH

BLOCKED

 

 

 

 

 

 

 

P

 

 

P

 

 

 

 

 

 

 

 

X5-3

 

 

DRAIN

 

 

S6

 

 

 

 

 

OR

 

 

 

 

 

 

SYSTEM

 

CN1-12

 

 

 

X5-4

 

 

BL

 

 

 

 

 

 

 

 

GY

 

 

 

 

 

SENSOR

 

 

CN1-11

 

 

 

X5-10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(AUX) DWH

S4

 

 

 

 

BK

 

 

 

S2

 

 

 

CN1-10

 

 

 

X5-8

 

 

 

INLET

 

TANK

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

CN1-9

 

 

 

 

R

 

 

 

S1

SENSOR

 

S5

 

 

 

 

X5-1

 

 

 

OUTLET

 

OUTDOOR

 

CN1-8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

SENSOR

 

 

 

CN3

 

X4

X5-2

W

 

 

 

S3

 

 

 

CN1-7

 

 

 

 

FLUE

 

 

 

 

 

 

 

 

 

SHIELD

 

CN1-6

 

 

 

X5-9

Y

 

 

 

 

SENSOR

 

 

A

 

 

 

 

 

 

 

 

 

 

 

RS485

 

CN1-5

 

 

 

 

BK

 

 

 

 

 

 

B

 

 

 

 

X2-2

 

 

GAS

 

 

 

 

 

CN1-4

CN3

 

 

Y

 

 

 

 

 

SHIELD

 

CN1-3

 

 

X2-1

 

 

VALVE

 

 

 

 

+

 

 

 

 

 

 

FLAME

 

 

 

 

 

EXTERNAL

 

CN1-2

 

 

 

 

W/R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

- 0-10V

 

CN1-1

 

 

 

X1-7

 

ROD

 

 

G

 

 

 

 

 

 

 

 

TR1

 

SPARK

 

 

 

 

 

 

 

 

CN1

 

 

 

ROD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

HIGH VOLTAGE SPARK LEAD

 

 

 

 

 

 

 

Notes:

1.All wiring must be installed in accordance with: local, state, provincial and national code requirements per either N.E.C. in USA or C.S.A. in Canada.

2.If any original equipment wire as supplied with the appliance must be replaced, it must be replaced with wire having same wire gauge (AWG) and rated for a minimum of 105°C. Exceptions: Replacement high voltage spark lead and ribbon cables must be purchased from the factory. Use of a non-approved spark lead or ribbon cables can lead to operational problems which could result in non-repairable damage to the integrated controller or other components.

3.Actual connector block locations may vary from those shown on diagrams. Refer to actual components for proper connector block locations when using diagrams to troubleshoot unit.

WIRING DIAGRAM

LBL2364 REV D

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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 RatingInstallation must comply with Closet and alcove installationsDetermine boiler location Before locating the boiler, checkFor closet installations, Cpvc or TOPResidential 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 palletModel Gas conversionsLeveling the boiler Models 600General 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 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 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 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 Head Feet Pressure20F 25F 30F 35F 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 GasNominal Natural Gas Pipe Capacity Chart Check inlet gas supplyIron Pipe Length of Pipe in Straight FeetGas valve replacement Gas PressureField wiring Installation must comply withLine voltage connections Outdoor temperature sensor Auxiliary device proving switchHigh gas pressure switch Low gas pressure switchAlarm contacts Wiring of the cascadeSystem supply sensor Boiler management system3Low 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 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 ShutdownAccess modes InstallerUser To save parameters and exit programmingService StandbySet Point Met PrepurgeSYS ***.*F Control will display the actual fan motor RPMDelay 10V in **.VdcOperation of the cascade Maintenance Maintenance and annual startup Service technicianOwner maintenance 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 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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