Lochinvar Boiler Piping Diagram: Comprehensive Installation & Operation Guide

Page 77

Installation & Operation Manual

13 Diagrams

Figure 13-1Wiring Diagram

LOW VOLTAGE 120 VAC HIGH VOLTAGE

BOX DEPICTS

OPTIONAL ITEMS

BOX DEPICTS DUAL SENSOR SINGLE HOUSING

ALARM BELL

BELL JUMPER

SILENCING SWITCH

 

 

 

 

 

CONNECTION BOARD

 

 

INTEGRATED

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

 

 

ALARM

1

 

 

 

 

 

 

 

 

L

N

 

 

 

X-7

 

 

RELAY

 

JUNCTION

 

CONTACTS

2

 

 

 

 

 

 

BOX

 

 

 

 

 

 

 

BOARD

 

DHW

RUN-TIME

3

 

 

 

 

 

 

 

 

 

PUMP

CONTACTS

4

 

 

 

 

X1-3

OR CN2-4

K1

CN1-5

OR

 

24 VAC LOUVER

5

 

 

 

 

 

 

 

CN1-6

OR

 

RELAY COIL

6

 

 

 

 

X1-4

BR CN2-2

 

BOILER

LOUVER

 

 

 

 

K2

CN1-3

BR

PUMP

7

CN5-1

BK

X4-7

 

 

 

 

 

 

 

 

 

 

 

PROVING SWITCH

8

 

 

 

CN1-4

BR

 

CN5-8

BK

X4-14

 

 

 

 

GAS PRESSURE

9

X1-2

PR CN2-3

K3

CN1-1

PR

 

CN5-2

BK

X4-6

 

SWITCH

10

 

 

 

 

 

SYSTEM

CN5-9

BK

X4-13

 

CN2-1

 

CN1-2

PR

 

 

 

 

 

 

 

PUMP

 

 

 

 

 

CN5-3

BK

X4-5

 

 

 

 

 

 

 

 

 

 

 

CN5-10

BK

X4-12

 

 

ON/OFF

 

 

 

 

 

 

 

 

CN5-11

BK

X4-11

 

 

SWITCH

 

L

 

 

FLOW

11

CN5-4

BK

X4-4

X1-6

BK

 

 

120V

 

CN5-5

BK

X4-3

X1-5

W

 

 

GND

SUPPLY

SWITCH

12

CN5-14

BK

X4-8

 

 

 

 

N

 

 

 

TANK

13

CN5-12

BK

X4-10

 

 

 

 

 

 

THERMOSTAT

14

CN5-6

BK

X4-2

 

 

 

 

 

 

HEAT/LOOP

1

15

CN5-13

BK

X4-9

X1-8

G

 

 

 

 

DEMAND

16

CN5-7

BK

X4-1

 

 

 

 

 

 

HEAT/LOOP

2

17

 

 

 

 

X1-1

R

 

 

 

 

DEMAND

18

 

 

 

 

 

 

 

 

 

 

HEAT/LOOP

3

19

 

 

 

 

 

 

 

 

TRANSFORMER

 

DEMAND

20

 

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

 

21

 

 

 

 

 

 

R W G

3.5A

 

 

 

 

 

 

 

 

 

 

KB 801

 

SENSOR

 

 

 

22

 

 

 

 

 

 

1

2 3

ONLY

 

OUTDOOR

 

 

 

23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

 

24

 

 

 

 

 

 

 

 

 

 

TANK

 

 

 

25

 

 

 

 

 

 

BLOWER

 

 

 

 

 

26

 

 

 

 

 

 

 

 

SENSOR

 

 

 

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

 

 

 

 

 

 

1 2 3 4 5

 

 

SHIELD

 

 

 

29

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

30

 

 

 

 

 

 

 

 

 

 

CASCADE B

 

 

31

 

 

 

 

 

 

 

 

 

 

SHIELD

 

 

 

32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN6

 

X6

X5-7

R

 

 

 

 

 

 

 

 

 

 

X5-16

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BMS

 

+

 

33

 

 

 

 

X5-8

W

 

 

 

 

 

0-10V

 

 

 

 

 

 

 

 

 

 

IN

-

34

 

 

 

 

X5-15

BK

 

 

 

 

SYS PUMP

 

+

0-10V

35

 

 

 

 

X5-9

Y

 

 

 

 

IN

 

-

 

36

 

 

 

 

 

 

 

 

 

 

BLR PUMP

 

+

0-10V

37

 

 

 

 

X5-1

BL

 

 

 

 

OUT

 

-

38

 

 

 

 

X5-2

O

 

 

 

 

RATE

 

+

0-10V

39

 

 

 

 

 

 

O-TEMP HEX SW

 

 

 

 

 

 

 

P BLOCKED DRAIN SWITCH

 

OUT

-

40

 

 

 

 

X5-10

 

 

SHIELD

 

41

 

 

 

 

 

 

AIR PRESSURE SWITCH

 

MODBUS

 

A

 

42

 

 

 

 

X5-11

O/BK

 

-T

 

 

OPTION

 

B

 

43

 

 

 

 

X5-4

R/BK

 

 

 

 

 

 

 

 

 

 

OPERATING SENSOR S1a

SHIELD

 

44

 

 

 

 

 

 

 

 

 

 

 

 

 

-T

 

 

 

 

 

24 VAC

CN7-1

 

 

 

 

X5-12

GY

 

HIGH LIMIT SENSOR S1b

 

LOW

 

 

 

 

 

 

X5-6

P/BK

 

-T

 

 

WATER

 

 

 

CN7-2

CN8-3

CN8-1 CN8-2

 

 

 

INLET SENSOR S2

 

 

 

 

CN7-3

 

 

 

 

 

-T

 

 

CUT-OFF

 

 

 

 

 

X5-5

 

 

 

 

 

 

COM

CN7-4

 

 

W/BK

 

FLUE SENSOR S3a

 

 

 

 

 

 

 

 

 

 

X5-13

PR

 

-T

 

 

 

 

 

 

 

R BLG

 

 

 

FLUE SENSOR S3b

 

 

 

 

 

 

 

 

X5-14

 

 

 

 

 

 

 

 

 

 

X6-3

X6-2 X6-1 X6-4

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

X2-2

BK

 

GAS VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X4-1

O

X9-1

X2-1

Y

 

@24VAC

 

 

 

 

 

 

 

X4-2

GY

X9-2

 

 

 

 

 

 

 

 

 

 

 

MODBUS BOARD

X4-3

G

X9-3

X1-7

W/R

FLAME SENSOR G

 

 

 

 

 

 

X4-4

 

X9-4

 

 

SHIELD

 

 

 

 

MTR-01

 

 

 

TR2

 

SPARK

 

 

 

 

 

X5-1

 

 

 

 

 

ROD

 

 

GROUNDING

 

 

 

 

 

 

 

 

 

CAUTION

HIGH VOLTAGE SPARK LEAD

 

 

 

X5-2

 

 

 

 

 

 

JUMPER

 

 

 

 

X1-1

BK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X1-2

W

 

 

 

 

 

 

 

 

 

 

 

 

 

X1-3

G

 

 

 

 

 

 

 

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 vo ltage 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 LBL20116 REV C

77

Image 77
Contents Models 400 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Knight XL How it worksModel Models 601 Knight XL Boiler =B=R Rating RatingsCloset and alcove installations Installation must comply withDetermine boiler location Before locating the boiler, checkAlcove Installation Provide air openings to room Residential garage installationVent and air piping Flooring and foundationAreas likely to have contaminants When using an existing vent system to install a new boilerProducts to avoid When removing a boiler from existing common vent system Gas conversions Model Prepare boilerRemove boiler from wood pallet Leveling the boiler Models 601General venting Direct venting options Vertical Vent Requirements for installation in Canada Install vent and combustion air pipingInstalling vent or air piping General ventingVent Pipe, and Fittings PVC/CPVC air intake/vent connectionsStainless steel vent Air inlet pipe materialsStainless Steel Air Intake/vent Connections FasNSeal Saf-T VentRemoving from existing vent Optional room airAir contamination Model Description Kit NumberSidewall direct venting If using the alternate sidewall terminationVent/air termination sidewall Determine location3AClearance to Gravity Air Inlets Bird Screen Typical Prepare wall penetrationsTermination and fittings Prepare wall penetrations Alternate Field Supplied OptionMultiple vent/air terminations Description and usage Sidewall termination installation9Concentric Vent Dimensional Drawing Models 400 Multiventing sidewall terminations 11Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct ventingMultiple vent/air terminations Prepare roof penetrations4Concentric Vertical Termination Vertical termination installationMm see -9, Multiventing vertical terminationsConcentric Venting Arrangement Alternate vertical concentric venting10Existing Vent as a Chase Existing vent as a chaseSystem water piping methods General piping information Hydronic pipingLow water cutoff device Chilled water systemHydronic piping 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 Loop Gas connections Connecting gas supply pipingPropane Gas Natural gasInches Check inlet gas supplyGas Pressure Gas valve replacementInstallation must comply with Field wiringLine voltage connections Low voltage connectionsLouver proving switch Outdoor temperature sensorHigh gas pressure switch Low gas pressure switchAlarm contacts Flow switchWiring of the cascade ModbusManual Condensate drain Condensate disposalStart-up Freeze protection when usedCheck/control water chemistry Fill and test water systemCheck thermostat circuits Check for gas leaksInspect/fill condensate system Inspect/check condensate lines and fittingsStart the boiler Final checks before starting the boilerIf boiler does not start correctly Check system and boilerFor Your Safety Read Before Operating Natural Gas Propane Set space heating operationConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation General Operating informationProtection features Boiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationStandby, ready to start a new cycle Navigation Dial Knight XL control moduleUser Access modesInstaller Call for Heat Information Dial Function Instructions Maintenance Maintenance and annual startupService technician Address reported problems MaintenanceClean condensate trap Check all piping for leaks Inspect boiler areaCheck water system Flue vent system and air pipingCheck expansion tank Check boiler relief valveCheck all boiler wiring Check ignition ground wiringCheck control settings Inspect ignition and flame sense electrodesCleaning boiler heat exchanger Check flame signalReview with owner Model Kit Part Component Number DescriptionLOW Voltage 120 VAC High Voltage Diagrams2Ladder 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.