Lochinvar 400-801 operation manual Diagrams, High Voltage

Models: 400-801

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Outdoor Knight XL Installation & Operation Manual

10 Diagrams

Figure 10-1Wiring Diagram

 

LOW VOLTAGE

BOX DEPICTS

 

120 VAC

 

OPTIONAL ITEMS

 

HIGH VOLTAGE

BOX DEPICTS

 

 

 

 

DUAL SENSOR

 

 

SINGLE HOUSING

CONNECTION BOARD

INTEGRATED

 

CONTROL

 

 

 

 

 

ALARM

1

 

ALARMBELL

BELLJUMPER

CONTACTS

2

 

LOUVER

7

 

 

 

RUN-TIME

3

 

 

 

CONTACTS

4

 

 

 

24 VAC LOUVER

5

 

 

 

RELAY COIL

6

 

 

 

PROVING SWITCH

8

CN5-1

 

 

CN5-8

 

 

GAS PRESSURE

9

 

 

CN5-2

 

 

SWITCH

10

 

 

CN5-9

 

 

 

 

 

 

SWITCH

 

 

 

 

 

CN5-3

 

 

 

 

 

CN5-11

 

 

 

 

 

 

CN5-10

SILENCING

 

 

TANK

13

CN5-4

 

 

CN5-12

 

 

FLOW

11

CN5-5

 

 

SWITCH

12

CN5-14

 

 

THERMOSTAT

14

CN5-6

 

 

HEAT/LOOP

3

15

CN5-13

 

 

DEMAND

16

CN5-7

 

 

HEAT/LOOP

2

17

 

 

 

DEMAND

18

 

 

 

HEAT/LOOP

1

19

 

 

 

DEMAND

20

 

 

 

SYSTEM

 

 

21

 

 

 

SENSOR

 

 

22

 

 

 

OUTDOOR

 

 

23

 

 

 

SENSOR

 

 

24

 

 

 

 

 

 

25

 

 

 

TANK

 

 

26

 

 

 

SENSOR

 

 

27

 

 

 

 

 

 

28

 

 

 

SHIELD

 

 

29

 

 

 

A

 

 

30

 

 

 

CASCADE

 

 

31

 

 

 

B

 

 

 

 

 

SHIELD

 

 

32

 

 

 

 

 

 

 

CN6

 

 

BMS

+

0-10V

33

 

 

 

IN

-

34

 

 

 

SYS PUMP

+

0-10V

35

 

 

 

IN

-

36

 

 

 

BLR PUMP

+

0-10V

37

 

 

 

OUT

-

38

 

 

 

RATE

+

0-10V

39

 

 

 

OUT

-

40

 

 

 

SHIELD

 

41

 

 

 

MODBUS

A

 

42

 

 

 

OPTION

B

 

43

 

 

 

SHIELD

 

44

 

 

 

LOW

 

24 VAC

CN7-1

 

 

 

CUT-OFF

 

COM

CN7-2

CN8-1 CN8-2 CN8-3

 

 

 

 

CN7-4

 

 

WATER

 

 

CN7-3

 

 

 

 

 

 

 

 

 

 

 

 

 

R BLG

BK

BK

BK

BK

BK

BK

BK

BK

BK

BK

BK

BK

BK

BK

X-7

X4-7

X4-14

X4-6

X4-13

X4-5

X4-12

X4-11

X4-4

X4-3

X4-8

X4-10

X4-2

X4-9

X4-1

X6

 

RELAY

 

L

N

 

 

JUNCTION

 

 

BOARD

 

BOX

DHW

 

 

 

 

PUMP

X1-3

OR CN2-4

CN1-5

OR

 

 

K1

 

 

 

 

BR CN2-2

CN1-6

OR

BOILER

X1-4

CN1-3

BR

PUMP

 

K2

 

 

 

X1-2

PR CN2-3

CN1-4

BR

 

CN1-1

PR

 

 

K3

 

 

SYSTEM

 

CN2-1

CN1-2

PR

 

PUMP

 

ON/OFF

 

 

 

 

SWITCH

 

L

 

X1-6

BK

 

120V

 

GND

X1-5

W

 

N

SUPPLY

X1-8

G

 

 

 

X1-1

R

 

 

 

 

 

 

TRANSFORMER

 

 

R W G

3.5A

 

 

KB 801

 

 

1 2 3

ONLY

 

 

 

 

 

BLOWER

 

 

 

1 2 3 4 5

 

 

 

X5-7

R

 

 

 

X5-16

T

 

 

 

X5-8

W

 

 

 

X5-15

BK

 

 

 

X5-9

Y

 

 

 

X5-1

BL

 

 

 

X5-2

O

 

O-TEMP HEX SW

 

 

BLOCKED DRAIN SWITCH

 

X5-10

P

 

 

 

X5-11

AIR PRESSURE SWITCH

 

O/BK

 

 

 

 

-T

 

 

 

X5-4

R/BK

OPERATING SENSOR S1a

X5-12

-T

HIGH LIMIT SENSOR S1b

 

GY

 

X5-6

-T

INLET SENSOR S2

 

P/BK

 

X5-5

-T

FLUE SENSOR S3a

 

W/BK

 

X5-13

-T

FLUE SENSOR S3b

 

PR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MTR-01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TR2

 

 

 

 

 

 

 

 

 

SPARK

 

 

 

 

 

 

 

 

SHIELD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ROD

 

 

 

 

 

 

 

GROUNDING

 

 

 

 

 

 

 

X5-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 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

WIRING DIAGRAM

diagrams to troubleshoot unit.

LBL20116 REV E

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Lochinvar 400-801 operation manual Diagrams, High Voltage

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.