Lochinvar 151-286 operation manual 120 VAC, High Voltage

Page 55

Outdoor Knight Boiler Installation & Operation Manual

10 Diagrams (continued)

Figure 10-2Wiring Diagram

 

LOW VOLTAGE

BOX DEPICTS

 

120 VAC

 

OPTIONAL ITEMS

 

HIGH VOLTAGE

BOX DEPICTS

 

 

 

 

DUAL SENSOR

 

 

SINGLE HOUSING

CONNECTION BOARD

INTEGRATED

 

CONTROL

JUNCTION

 

 

 

BOX

BOX DEPICTS

OPTIONAL

ITEMS

 

 

ALARM

1

 

 

 

BELL JUMPER

CONTACTS

2

 

 

ALARMBELL

RUN-TIME

3

 

 

CONTACTS

4

 

 

24 VAC LOUVER

5

 

 

RELAY COIL

6

 

 

LOUVER

7

CN5-1

BK

 

 

PROVING SWITCH

8

 

 

CN5-8

BK

 

 

GAS PRESSURE

9

 

 

CN5-2

BK

 

 

SWITCH

10

 

 

CN5-9

BK

 

 

 

 

 

SWITCH

 

 

 

 

CN5-3

BK

 

 

 

 

CN5-10

BK

 

 

 

 

CN5-11

BK

SILENCING

 

 

 

 

CN5-4

BK

 

FLOW

11

CN5-5

BK

 

SWITCH

12

CN5-14

BK

 

TANK

13

CN5-12

BK

 

 

THERMOSTAT

14

CN5-6

BK

 

 

HEAT/LOOP

3

15

CN5-13

BK

 

 

DEMAND

16

CN5-7

BK

 

 

HEAT/LOOP

2

17

 

 

 

 

DEMAND

18

 

 

 

 

HEAT/LOOP

 

 

 

 

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

X1-3

X1-4

X1-2

X1-6

X1-5

X1-8

X1-1

OR

BR

PR

BK

W

G

R

W

W

W

KB ONLY

ON/OFF

SWITCH

L

G

DHW

N

PUMP

 

 

 

L

G

BOILER

 

N

PUMP

 

 

 

L

G

SYSTEM

 

N

 

PUMP

 

 

L

L

120V

N

GND

SUPPLY

 

N

 

DEMAND 1

19

 

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

 

WATER

 

COM

CN7-2

CN8-1 CN8-2 CN8-3

 

 

CN7-3

CUT-OFF

 

 

 

 

CN7-4

 

 

 

 

R BLG

X6

TRANSFORMER

R W G

1 2 3

 

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

KB 286 ONLY

 

X5-10

BLOCKED DRAIN SWITCH

O-TEMP HEX SW

P

 

X5-11

AIR PRESSURE SWITCH

O/BK

 

X5-4

-T

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

@24VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X5-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

HIGH VOLTAGE SPARK LEAD

 

 

 

 

 

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.

LBL20127 REV E

55

Image 55
Contents Save this manual for future reference Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Outdoor Knight Boiler How it worksModels 151 Model Outdoor Knight Boiler Ahri Rating RatingsDetermine boiler location Installation must comply withBefore locating the boiler, check Outdoor vent / air intake location Flooring and foundation Provide clearancesPrevent combustion air contamination Remove boiler from wood pallet Prepare boilerGas conversions 286 Leveling the boilerHydronic piping Near boiler piping components Indirect water heaters System temperature sensorNear boiler piping connections Circulator sizingMinimum Pipe Pump Size Grundfos FeetPressure ModelUP26-96 FC/VS IFC VS Stratos 1.25 3 x Smart System / Multi-temperature loop control optionVariable speed pump setup Variable speed pump optionZone #1 Number of Units Model Required Pipe Sizes 6Single Boiler Multiple Temperatures 151 211 286 IMG00374 Number of Units 10Multiple Boilers Non-Zoned Primary/Secondary Piping Gas connections Connecting gas supply pipingPropane Gas Natural gasCheck inlet gas supply Single Unit Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas Pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsThermostat Outdoor temperature sensorHigh gas pressure switch Low gas pressure switchSystem supply sensor Flow switch Runtime contactsAlarm contacts Wiring of the cascade3Low Voltage Field Wiring Connections Condensate drain Condensate disposalFill and test water system Freeze protection when usedStart-up Check/control water chemistryInspect/check condensate lines and fittings Check for gas leaksCheck thermostat circuits Inspect/fill condensate systemCheck system and boiler Final checks before starting the boilerStart the boiler If boiler does not start correctly2Operating Instructions Natural Gas Propane Set space heating operationConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation How the control module operates Operating informationGeneral How the boiler operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operationOperation Display Sequence of operationStandby, ready to start a new cycle User Access modesInstaller Outdoor Knight boiler control moduleCall for Heat Operating information Dial Function Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check boiler relief valve Flue vent system and air pipingCheck water system Check expansion tankCheck flame signal Check ignition ground wiringCheck all boiler wiring Check control settingsModel Kit Part Component Number Description Cleaning boiler heat exchangerReview with owner Oiled bearing circulatorsPC Interface DiagramsHigh Voltage 120 VAC

151-286 specifications

Lochinvar 151-286 is a high-efficiency water heater designed for both residential and commercial applications. This model stands out due to its advanced technology, user-friendly controls, and robust construction, making it a reliable choice for those seeking to optimize their hot water supply.

One of the key features of the Lochinvar 151-286 is its impressive heating capacity. With a maximum input of 286,000 BTU/hr, it can efficiently meet hot water demands for a variety of settings, including hotels, restaurants, and other commercial facilities. This substantial output ensures that even during peak usage hours, hot water availability is maximized, reducing wait times and enhancing customer satisfaction.

The water heater utilizes a state-of-the-art condensing technology that maximizes efficiency by capturing and utilizing flue gas heat. This process allows the Lochinvar 151-286 to achieve an impressive thermal efficiency rating of up to 98%. The benefit of such high efficiency translates to significant energy savings and reduced operational costs over time, making it an environmentally friendly option as well.

The Lochinvar 151-286 is equipped with a user-friendly control system featuring advanced microprocessor controls. These controls allow for precise temperature management and monitoring, enabling users to set optimal temperatures according to their specific needs. Additionally, the heater includes built-in diagnostics, allowing for easy troubleshooting and maintenance, which minimizes downtime and extends the life of the unit.

Another standout characteristic of the Lochinvar 151-286 is its durable construction. Built with high-quality materials, including a robust stainless steel heat exchanger, this model is designed to withstand the rigors of daily use. The unit also features a compact design, which facilitates easy installation in various locations, whether it be in a utility closet or alongside existing equipment.

Safety features are paramount in the Lochinvar 151-286, with multiple safeguards in place to protect against overheating and other potential issues. The unit is designed to operate reliably, ensuring peace of mind for users who depend on consistent hot water availability.

In summary, the Lochinvar 151-286 water heater combines high capacity, exceptional efficiency, and user-friendly technology, making it an excellent choice for those seeking reliable hot water solutions. Its advanced features deliver performance and durability that stand out in the competitive market of water heating systems.