Lochinvar 151-286 operation manual Diagrams, PC Interface

Page 54

Outdoor Knight Boiler Installation & Operation Manual

10 Diagrams

Figure 10-1Ladder Diagram

120VAC

 

 

JUNCTION BOX

 

 

 

 

 

 

NEUTRAL GROUND

 

TERMINAL STRIP

 

 

 

 

 

 

 

 

TERMINAL STRIP

 

120V SUPPLY "L"

 

 

 

 

 

 

 

 

120V SUPPLY "N"

 

 

 

 

 

 

 

 

 

1

 

2

KB ONLY

ON / OFF

 

INTEGRATED CONTROL

 

 

 

GND

 

BLOWER

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

SYSTEM

 

SYSTEM

 

 

 

 

X1-6

 

F2

 

X1-1

 

 

3

 

 

 

 

 

 

X1-2

PUMP "L"

 

PUMP "N"

 

 

 

 

 

 

3.15A

 

 

 

 

 

 

 

 

 

 

 

F1

 

 

 

SYSTEM

GND

 

 

 

 

 

 

 

 

 

BOILER

PUMP

BOILER

 

 

 

 

 

 

5A

SYSTEM PUMP

 

 

 

 

 

 

 

 

X1-4

PUMP "L"

 

PUMP "N"

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BOILER PUMP

 

 

BOILER

GND

 

 

 

 

 

 

 

RELAY

 

 

PUMP

 

 

 

 

 

 

 

 

 

 

DHW

DHW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DHW PUMP

X1-3

PUMP "L"

 

PUMP "N"

 

 

 

 

 

 

F3

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

TERMINAL

 

TERMINAL

 

 

 

 

 

 

.8A

24V DC

 

STRIP

DHW

STRIP

 

 

 

 

X5-9

 

SUPPLY

X5-1

 

PUMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120 VAC

 

 

 

 

 

 

 

 

 

X4-3

3.5A

24 VAC

 

 

 

 

 

 

 

 

 

KB 801

 

CONNECTION BOARD

 

 

 

 

 

 

ONLY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INTEGRATED

 

CN5-5

 

 

LWCO

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

FLOW

 

CN5-14

X4-8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN7-3

 

 

CN7-4

11

SWITCH

12

CN5-10

X4-12

 

 

 

 

 

 

 

 

 

 

24 VAC

 

 

 

CN7-1

 

CN7-2

 

 

 

 

 

 

 

 

 

HEAT/LOOPDEMAND 1

 

 

CN5-7

X4-1

 

 

 

 

 

 

 

 

 

 

 

19

 

20

 

 

 

 

 

 

 

 

 

HEAT/LOOPDEMAND 2

 

 

CN5-13

X4-9

 

 

 

 

 

 

 

 

 

 

 

17

 

18

 

 

 

 

 

 

 

 

 

HEAT/LOOPDEMAND 3

 

 

CN5-6

X4-2

 

 

 

 

 

 

 

 

 

 

 

15

 

16

 

 

 

 

 

 

 

 

 

TANK

 

 

 

 

 

 

 

 

 

THERMOSTAT

 

 

CN5-12

X4-10

 

 

 

 

 

 

 

 

 

 

 

13

 

14

 

 

 

 

 

 

 

 

 

LOW GAS

HIGH GAS

 

 

 

 

 

 

 

 

 

PRESSURE

PRESSURE

 

 

 

 

 

 

 

 

 

SWITCH

SWITCH

 

 

CN5-11

X4-11

 

 

 

 

 

 

 

 

 

 

 

10

 

9

 

 

CN5-3

X4-5

 

 

 

 

 

INTEGRATED

 

 

 

 

 

 

 

LOUVER

 

 

 

 

 

 

 

 

 

CONTROL

5

 

 

 

 

 

 

 

 

 

RELAY COIL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24VAC

6

 

 

 

 

 

 

 

 

 

LOUVER

7

 

 

 

 

 

 

 

 

 

PROVING SWITCH

CN5-4

X4-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X7

 

8

 

 

 

 

 

 

 

RIBBON CABLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KB 286 ONLY

 

 

X5-2

 

 

 

 

 

 

 

 

 

 

 

PC INTERFACE

 

 

 

O-TEMP HEX SW

BLOCKED

 

X5-10

 

 

 

 

 

X5-6

DRAIN SWITCH

 

 

 

 

S2

 

 

 

 

 

 

INLET

 

 

 

 

 

 

ALARM

BELL

1

SENSOR

 

 

 

AIR PRESSURE

 

 

 

 

 

X5-4

 

 

X5-11

 

 

 

OPERATING S1a

 

SWITCH

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

HIGH LIMIT

S1b

X5-12

GAS VALVE

 

 

 

 

 

 

 

 

X2-2

 

 

 

SENSOR

 

 

 

 

 

2

6

FLUE SENSOR

S3a

X5-5

X5-13

 

GAS VALVE

X2-1

RELAY

FLUE SENSOR

S3b

X5-14

13

CONNECTION

BOARD

BLOWER

1

X5-7

 

2

X5-16

 

 

 

1

 

CN5-1

 

 

ALARM

 

 

 

CONTACTS

2

 

CN5-8

 

 

 

 

 

 

 

 

 

 

3

 

CN5-2

 

 

RUN-TIME

 

 

 

CONTACTS

4

 

CN5-9

 

 

 

 

 

 

 

SYSTEM

S6

21

 

CN6

 

 

 

 

SENSOR

 

22

 

CN6

 

 

 

 

 

OUTDOOR

S5

23

 

CN6

 

 

 

 

SENSOR

 

24

 

 

 

TANK

S4

26

 

CN6

 

 

 

 

SENSOR

 

27

 

CN6

 

 

 

 

 

 

 

SHIELD

 

29

 

CN6

 

 

A

 

30

 

 

CASCADE

 

 

 

 

B

 

31

 

CN6

 

 

 

 

 

 

SHIELD

 

32

 

CN6

 

 

 

 

 

BMS +

 

33

 

CN6

 

0-10V

 

 

 

IN -

34

 

CN6

 

 

 

 

 

 

CN6

 

SYS PUMP

+

 

35

 

 

0-10V

 

 

 

IN

-

36

 

CN6

 

 

 

 

BLR PUMP

+

 

37

 

CN6

 

0-10V

 

 

 

OUT -

38

 

CN6

 

 

 

 

 

 

 

 

RATE

+

 

39

 

CN6

 

0-10V

 

 

 

OUT

-

40

 

 

 

 

 

 

M

SHIELD

 

41

 

 

 

A

 

42

CN8-1

X6-1

O

 

 

D

MODBUS B

 

43

CN8-2

X6-2

B

SHIELD

 

44

CN8-3

X6-3

U

 

 

 

S

X4-7

X4-14

X4-6

X4-13

X6

X6

X6

X6

X6

X6

X6

X6

X6

X6

X6

X6

X6

X6

X6

X4-1 X9-2

X4-2 X9-1

X4-3 X9-3

4 X5-8

5 X5-15

TR2

X1-7

FLAME ROD

SPARK

ROD

CAUTION HIGH VOLTAGE SPARK LEAD

NOTES:

1.Where possible, switches are shown without utilities (gas, water or electricity) connected to the unit. As such, actual switch states may vary from those shown on diagrams depending upon whether utilities are connected or a fault condition is present.

2.See wiring diagram for additional notes.

BOX DEPICTS

OPTIONAL ITEMS

LOW VOLTAGE 120 VAC HIGH VOLTAGE

LADDER DIAGRAM

LBL20148 REV D

54

Image 54
Contents Save this manual for future reference Contents When servicing boiler Please read before proceedingOutdoor Knight Boiler How it works Stainless steel heat exchangerModels 151 Model Ratings Outdoor Knight Boiler Ahri RatingInstallation must comply with Determine boiler locationBefore locating the boiler, check Provide clearances Outdoor vent / air intake location Flooring and foundationPrevent combustion air contamination Prepare boiler Remove boiler from wood palletGas conversions Leveling the boiler 286Hydronic piping Near boiler piping components Circulator sizing System temperature sensorNear boiler piping connections Indirect water heatersModel FeetPressure Minimum Pipe Pump Size GrundfosVariable speed pump option Smart System / Multi-temperature loop control optionVariable speed pump setup UP26-96 FC/VS IFC VS Stratos 1.25 3 xZone #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 Connecting gas supply piping Gas connectionsNatural gas Propane GasSingle Unit Natural Gas Pipe Capacity Chart Check inlet gas supplyLength of Pipe in Straight Feet for 1/2 PSI Gas valve replacement Gas PressureLine voltage connections Field wiringInstallation must comply with Low voltage connectionsLow gas pressure switch Outdoor temperature sensorHigh gas pressure switch ThermostatWiring of the cascade Flow switch Runtime contactsAlarm contacts System supply sensor3Low 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 boiler2Operating Instructions Set space heating operation Natural Gas PropaneVerify DHW mode Configuration of the cascadeSet domestic hot water DHW operation How the boiler operates Operating informationGeneral How the control module operatesTemperature control Protection featuresBoiler temperature regulation Outdoor reset operation CascadeSequence of operation Operation DisplayStandby, ready to start a new cycle Outdoor Knight boiler control module Access modesInstaller UserCall for Heat Operating information Dial Function Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check expansion tank Flue vent system and air pipingCheck water system Check boiler relief valveCheck control settings Check ignition ground wiringCheck all boiler wiring Check flame signalOiled bearing circulators Cleaning boiler heat exchangerReview with owner Model Kit Part Component Number DescriptionDiagrams PC Interface120 VAC High Voltage

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.