Lochinvar 000 - 2, 495, 065 service manual Schematic Diagram, Btu/Hr

Page 47

47

Ground Line

120VAC/60HZ

Neutral

 

 

DISCONNECT POWER BEFORE SERVICING THE UNIT

 

 

 

 

 

 

 

 

G

BK

 

 

 

W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

BK/W

 

 

 

BK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLAME

 

 

SHUTOFF/

 

 

W

ACC.

CHASSIS

1

W

 

 

 

 

FIELD PROVIDED

INTERMITTENT

NO

 

LoGas

HiGas

 

LOUVER

 

 

BK

 

SOLENOID

 

BR

PLUG

 

 

 

 

 

 

 

 

CURRENT

 

 

 

GROUND

 

 

3

 

 

 

 

REMOTE OPERATOR

 

 

 

COM

 

 

 

 

 

 

W

 

W

 

 

 

W

COM NO

FLOW SWITCH

 

 

C

 

C

 

 

NC

C

OPEN

 

 

TEST PINS

 

 

 

 

 

 

 

POWER SWITCH

 

 

 

 

 

 

 

 

FIELD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NORMALLY OPEN BR

 

BK

 

 

 

 

 

 

 

 

 

 

 

 

OPTIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

 

F1

 

 

 

 

BL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BURNER GROUND

+

 

 

VENT VALVE

 

 

 

 

 

CONTINUOUS

 

 

 

 

 

 

 

OPTIONAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120

 

 

 

 

 

HI-LIMIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24VAC

FLOW

R1

 

W1

 

 

AUX. LIMIT

C

 

X

B

 

 

 

 

 

 

 

G

GY

5

S1

F2

BR

 

 

 

 

 

 

 

VAC

SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

 

 

 

BL

 

 

O

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

LOW AIR

GY

4

LINE

 

 

FLASH

 

 

 

 

24

 

24VCOM

 

 

 

 

 

 

 

 

 

 

Y

 

 

O/W O/W

 

 

 

 

 

LOW AIR

IND.

GY/W

1

S2/FS

NOT

CODE LED

 

 

 

 

 

 

 

 

BL

 

O

 

 

 

 

COM

NC

COM

NC

 

 

 

 

 

 

 

 

PU

 

TRIAL

2 NEU

USED

BLOWER

W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

IGNITER

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

GY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

Y

 

 

 

 

R/O

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

Y

O

10

TH

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLAME FAILURE RESET

9

24COM

G

 

 

 

 

 

G

 

 

 

 

PUMP RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O.A.

 

T

 

BL

BL/W

8

 

 

 

 

 

 

 

 

 

 

DC 24V COIL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

RESET

 

 

 

 

LOW FIRE VALVE

 

 

 

 

 

 

 

O

CN7

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

BL

 

6

24VAC

 

 

 

 

 

 

 

 

PUMP

 

 

 

 

 

 

 

 

 

 

 

 

 

2

CN3

 

 

 

 

 

 

 

5

MV

R

 

 

R

 

 

Y

 

 

 

 

PU

 

O

CN8

 

 

 

 

 

 

 

BK

 

 

 

 

 

 

 

 

 

T

 

 

 

PV

 

OPTIONAL

 

 

 

 

 

 

CN1

 

 

 

 

INLET

 

 

 

 

 

 

 

 

 

4

PS

 

 

 

 

 

PV/MV

ON BOILER

 

 

 

 

NO

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

FLAME FAILURE

 

IGNITION

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

 

PROBE

 

 

INLET

 

 

 

 

MODULE

 

 

MV

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

ON

ENABLE

 

CN2

CN4

BK

 

 

 

 

 

O

PU/W

1

FF

 

 

 

 

 

 

 

W

 

 

 

C

 

 

 

 

 

SHUTDOWN

 

DISABLE

 

 

 

SENSOR

 

 

 

 

 

 

 

 

HEATING

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BK

 

 

 

 

 

 

 

 

 

 

 

O.A.SHUTDOWN

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

Y

 

 

 

 

 

Y

2

 

 

 

 

 

 

 

 

 

 

R/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN5

 

 

 

 

 

 

 

 

FIELD PROVIDED

FULL-FIRE STANDARD

 

HIGH FIRE VALVE

 

 

 

 

 

 

 

BL

1

 

 

 

O.A. MAX.

 

RATIO

 

 

 

PR

 

 

 

 

 

 

 

 

REMOTE OPERATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JUNCTION POINT

BK = BLACK Y=YELLOW

CN1

 

 

 

OPTIONAL I/O RESET

 

 

 

SYS/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

PV

 

Y

 

 

 

 

 

TANK PR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ITEM

INDICATES

W = WHITE

T=TAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYSTEM/TANK

 

 

 

 

 

 

 

 

 

 

 

(ELECTRICALLY SAME)

PR=PURPLE BR=BROWN

 

 

 

 

 

 

 

 

 

 

 

CN6

 

 

 

 

 

 

 

 

 

 

 

 

PV/MV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

R2 W2

 

 

 

 

 

 

 

R/O

CLOSED END SPLICE

BL=BLUE

G=GREEN

 

 

 

OFF

 

 

 

 

HIGH-FIRE

 

 

CN9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DOTTED LINE

P=PINK

 

GY=GRAY

 

 

 

 

 

DIFFERENTIAL

 

 

 

 

 

 

 

 

 

 

 

 

 

R/O

R/O

 

HI-LOW FIRE

 

 

 

MV

 

 

 

 

 

 

 

SETPOINT

OFFSET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQUIPMENT

O=ORANGE R=RED

 

 

 

 

 

OPERATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INDICATES OPTIONAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPTIONAL

 

RESET

P

 

 

 

 

J1

 

TEST SWITCH PROBE

 

OPERATOR CN1 (4)

24V COM

 

OPTIONAL ALARM ON ANY FAILURE

OPTIONALLOUVER- CONTACTSVENTER

 

120V NEUTRAL

 

 

 

 

 

120VAC

 

 

 

LWCO IND.

 

J2

 

 

NO

O.C.

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LWCO OR LWCO

PR

PR

 

1

 

 

 

 

 

T

T

 

 

 

 

 

 

 

 

 

 

IGNITION

 

 

 

L

 

 

 

POWER

PR

 

 

2

 

 

 

 

 

 

 

 

O

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

BR

W

 

 

 

WITH ALARM

G

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND RE S E T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

W

 

OPTIONAL

 

MODULE

 

 

C

 

NO

 

 

 

BL

F

M

 

 

J4

 

 

 

 

 

 

BL

 

 

 

 

T

 

 

 

 

 

 

 

 

 

SILENCE

 

24VAC ALARM

 

"F2"

 

 

BK

 

BK

BK

W

O

O

 

 

 

4

5

6

J3

 

24V COM

 

 

 

 

 

 

C

NO

BR

 

BR

 

BELL

 

 

 

"B"

 

 

 

 

BK

 

 

"R1"

 

P

 

 

 

3

2

1

 

 

Y

 

24V COM

 

 

IGN MODULE PIN 5 (MV)

 

 

BR

 

R

 

 

 

 

 

 

 

OPEN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

"X"

 

C

 

 

 

 

 

 

 

 

 

 

 

BR

R

 

 

 

 

R

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LWCO

 

 

 

 

C

 

 

BR

 

R

 

CONTACTS

 

 

 

 

 

 

CLOSED

 

 

 

 

"C"

 

PR

 

 

 

 

 

BR

R

ALARM

 

 

 

 

 

 

 

NO

 

 

 

 

 

"FIELD PROVIDED LOUVER PROVING SWITCH"TO LOUVER OR

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTACTS

 

 

 

 

 

 

Y

 

TD

 

O/W

 

 

 

 

 

 

OPTION BOX "A", "B" OR "C"

 

DAMPER

OPTION BOX "B" OR "C"

 

 

 

BR/W

 

R

Y

24V COM

 

 

 

 

C

NC

 

 

 

OPTION BOX "C" ONLY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCHEMATIC/LADDER DIAGRAM LBL20034 REV A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODELS 495,000 - 745,000

SCHEMATIC DIAGRAM

BTU/HR

 

Image 47
Contents Save this manual for future reference Domestic Water HeatersHydronic Heating Boilers and Domestic Water Heaters General Product Information Safety InformationHydronic Heating Boilers and Domestic Water Heaters Front and Rear View Product IdentificationBase for Combustible Floors InstallationClearances from Combustible Construction Pump Operation Outdoor Boiler InstallationHydronic System Antifreeze Shut-Down and DrainingCombustion Air Filter Installing Combustion Air FilterFreeze Protection for a Heating Boiler System if required One Opening Combustion Air OptionsVenting Support Installation VentingGeneral Information Exhaust FansTABLE-A TABLE-C Vent System OptionsTable B Flue Pipe SizesCommon Venting Systems Conventional Negative Draft VentingNegative Draft Flue Outlet PipingMasonry Chimney Installations Outdoor Installation VentingOutdoor Vent Kit Table DOutdoor Vent Kits Outdoor Vent/Air Inlet LocationInput Max Min Gas Pressure TestGas Piping Gas Train and Controls Connecting Gas Piping to UnitVenting of Combination Gas Valves Combination Gas ValvesChecking Gas Supply Pressure Measuring Gas Supply Pressure at Combination Gas Valve Gas Manifold Pressure AdjustmentRegulator Pressure Less Front Chamber Pressure NET Manifold PressureIf Equipped Water Flow SwitchLow Water Cutoff Relief ValveNominal AMP Draw Data Terminal Strip Connection OptionsTable J General Plumbing Rules Water Connections Heating Boilers OnlyPrimary/Secondary Boiler Piping Input LTV Valve Kit Btu/hr Low Temperature Return Water SystemsRadiant Floor and Snow Melt Heating Systems 10ºF 20ºF 30ºF 40ºF 50ºF 60ºF Installation with a Chilled Water SystemSystem Temperature Rise Chart Based on Btu/hr Input Table LFilling the System Temperature/Pressure GaugeBoiler Flow Rate Boiler Bypass RequirementsLighting Instructions OperationTo Turn Off Gas To Appliance Locating Temperature ControlMaximum Set Point Determination Temperature Control SettingsTable M Set PointOutdoor Air Max O.A. Max Outdoor Air Reset OptionHigh-Fire Offset ShutdownWater Heater Application Temperature Control SensorsPlacement of Sensors Boiler ApplicationTable N Remote Wire ConnectionWire Maximum Gauge Hot Surface Igniter and Ignition Control ModuleIgnition Module Lockout Functions Diagnostic Status IndicationHot Surface Ignition Control Module Ignition and Control TimingsTable P Status LED Diagnostic CodesTable O Water Velocity Control Required Temperature RiseTemperature Rise Chart Domestic Water HeatersTable R Pipe Sizing ChartWater Chemistry Circulating PumpMinimum Pump Performance Potable Hot Water Temperature Control SettingsDomestic Water Temperatures Domestic WaterThermal Expansion High Water Temperature Limit ControlLocation of Cold Water Supply Piping Connections Optional Relief ValveFlue Gas Passageways Cleaning Procedures Cleaning MaintenanceCombustion and Ventilation Air Heat Exchanger CleaningElectrical Adjustment Procedure 495,000 1,255,000 Btu/hr Models Cleaning and MaintenanceSet Up Procedure Servicing Hot Surface Igniter and Ignition Module Ignition System Checkout Sequence of OperationSafety Device Terminals Power SupplyON/OFF Rocker Switch Manual Reset High-Limit ThermostatHeat Transfer Process Gas Valves, Burner Electronic Temperature ControllerIgnition Module BTU/HR Schematic DiagramHI-LIMITS PWR SW Main Unit GAS Valves Blower Pressure Switch 15AMPS Wiring DiagramControl BOX Connections Control BOX Connections

000 - 2, 065, 495 specifications

Lochinvar 000 - 2,495,065 is a cutting-edge water heating solution designed to meet the needs of modern residential and commercial applications. This high-efficiency unit combines advanced engineering with robust technologies, providing unmatched performance and reliability.

One of the standout features of the Lochinvar 000 - 2,495,065 is its high thermal efficiency, which often exceeds 95%. Utilizing condensing technology, the unit harnesses heat from exhaust gases, allowing it to recover otherwise lost energy, thereby reducing operational costs significantly. This efficiency not only lowers energy bills for users but also lessens the environmental impact by minimizing greenhouse gas emissions.

The Lochinvar 000 - 2,495,065 is equipped with a lightweight stainless steel heat exchanger. This construction ensures exceptional corrosion resistance and longevity, extending the lifespan of the unit while maintaining optimal performance. The stainless steel design also contributes to faster heating times, making it ideal for high-demand environments.

In terms of control technologies, the Lochinvar 000 - 2,495,065 features an intuitive touchscreen interface. This user-friendly design allows for seamless operation, real-time monitoring, and easy adjustments to temperature settings. Additionally, it facilitates remote diagnostics, promoting efficient maintenance and reducing downtime, which is crucial for busy facilities.

For enhanced safety, the Lochinvar 000 - 2,495,065 includes multiple safety mechanisms, such as over-temperature protection, flame safeguard, and leak detection systems. These safety features ensure secure operation and give users peace of mind.

Moreover, the unit is compatible with various fuel sources, including natural gas and propane, making it versatile and adaptable to different infrastructure requirements. This flexibility ensures that the Lochinvar 000 - 2,495,065 can be integrated into various settings, from residential homes to large commercial buildings.

Another significant characteristic is its compact design, allowing for easy installation in tight spaces. The footprint of the Lochinvar 000 - 2,495,065 makes it an ideal solution for applications where space is at a premium, without compromising on performance.

In summary, Lochinvar 000 - 2,495,065 represents a premium choice for water heating solutions, merging advanced technologies, high efficiency, and user-friendly design to cater to a wide range of heating needs while ensuring safety and sustainability.