Lochinvar 5 operation manual 2Ladder DiagramPart

Page 64

Installation & Operation Manual

12 Diagrams

Figure 12-2Ladder Diagram_Part 2

120VAC

TERMINAL STRIP 120V SUPPLY "L"

ON / OFF

SWITCH

X1-6

X1-8

JUNCTION

BOX

X5-7

X6-7

X6-2

ON / OFF

SWITCH

X1-6

X1-8

JUNCTION

BOX

BOX DEPICTS

OPTIONAL ITEMS

 

 

 

 

 

 

 

 

 

LOW VOLTAGE

 

 

 

 

 

 

 

 

 

120 VAC

 

 

 

JUNCTION BOX

 

 

NEUTRAL

GROUND

 

 

HIGH VOLTAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

TERMINAL STRIP

 

L1

JUNCTION BOX

N

 

 

 

 

120V SUPPLY "N"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOUVER

CONTROL MODULE 1

 

 

 

 

 

 

 

MOTOR

 

 

 

 

 

 

LOUVER

 

 

 

 

 

SYSTEM PUMP

 

 

 

 

CONTACTS

 

F5

 

 

 

 

 

 

 

 

 

 

 

X1-2

RELAY

 

 

 

 

HEX 1

BOILER

 

 

 

 

 

 

 

 

 

PUMP

 

 

 

 

 

 

 

 

 

BOILER PUMP

5A

 

SYSTEM PUMP

 

 

 

 

 

 

CONTACTS

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

HEX 1

 

 

 

 

 

 

 

 

 

 

BOILER PUMP

 

 

 

 

 

 

 

 

 

X1-4

RELAY

 

 

 

 

HEX 2

BOILER

 

 

 

 

 

 

 

 

 

BOILER PUMP

PUMP

 

 

BOILER PUMP

 

 

 

 

 

 

CONTACTS

 

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

JUNCTION BOX

DHW PUMP

 

 

 

 

 

 

 

 

RELAY

 

 

SYSTEM

 

 

 

X1-3

 

 

 

 

SYSTEM

 

 

 

 

 

 

(FIELD SUPPLIED)

 

 

 

 

 

 

 

 

PUMP

PUMP

 

 

 

 

 

 

 

 

 

CONTACTS

 

 

 

DHW PUMP

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

BLOWER

2

 

 

 

 

 

F4

 

 

X1-1

1

3

 

 

 

 

3.5A

BLOWER

 

 

 

 

 

 

DHW

 

 

 

RELAY

 

3

 

 

 

 

PUMP

DHW

F3

 

 

 

 

 

 

 

CONTACTS

1.25A

 

 

 

 

 

 

 

 

(FIELD SUPPLIED)

PUMP

120 VAC

X1-5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F2

 

 

X6-8

 

 

 

 

 

 

 

 

 

 

 

 

LWCO

 

 

 

DHW

3.5A

24 VAC

 

 

 

 

 

 

 

 

 

 

 

 

PUMP

 

 

J3-2

 

 

 

 

 

 

 

X6-3

 

 

 

LOW GAS

HIGH GAS

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRESSURE

PRESSURE

MODULE 1

 

 

 

 

 

 

 

 

SWITCH

SWITCH 1

X6-5

CONTROL MODULE 2

 

 

 

 

 

 

 

 

F5

 

 

X1-2

 

 

 

 

 

HIGH GAS

CONTROL

 

 

 

 

 

 

 

MODULE 2

 

 

 

 

 

 

 

 

 

PRESSURE

X6-5

5A

 

SYSTEM PUMP

 

 

 

 

 

 

SWITCH 2

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

HEX 2

 

 

 

 

 

 

 

 

 

 

BOILER PUMP

 

 

 

 

 

 

 

 

 

X1-4

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BOILER PUMP

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

X1-3

 

 

 

 

 

 

 

 

 

DHW PUMP

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

BLOWER

2

 

 

 

 

 

F4

 

 

X1-1

1

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

MODULE 1

 

X5-7

X6-7

X6-2

 

CONNECTION

 

BOARD

CN1-4

5

CN1-12

 

CN1-13

9

 

 

7

 

11

 

13

LWCO

J3-4

J3-5

J3-6

 

J3-3

 

TEST SWITCH

 

PROBE

 

 

3.5A

BLOWER

 

F3

 

RELAY

3

 

 

1.25A

 

 

 

 

120 VAC

 

 

F2

 

 

X6-8

 

 

 

3.5A

24 VAC

 

 

 

CONNECTION

 

 

BOARD

 

 

6

CN1-6

 

 

LOUVER

 

 

PROVING

 

 

 

10

CN1-5

 

 

HEX 1

 

 

FLOW

 

 

SWITCH

8

CN1-6

 

 

HEX 2

 

 

FLOW SWITCH

12

 

 

CN1-3

 

 

HW

 

 

THERMOSTAT

 

 

 

14

CN1-11

 

 

ENABLE

 

 

 

4

CN1-15

 

 

RUN TIME

 

 

CONTACTS

3

 

 

 

 

 

CN1-10

 

1

CN1-7

 

 

ALARM

 

 

CONTACTS

2

 

 

CN1-8

 

 

X6-10

X6-9

X6-1

X6-6

X3-2

X3-4

X3-1

X3-3

CONTROL

MODULE 2

X6-10

X6-9

X3-2

X3-4

X3-1

X3-3

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.

LADDER DIAGRAM LBL20046 REV G

64

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Image 64
Page 63 Page 65
Contents Save this manual for future reference Contents When servicing boiler Please read before proceedingSync How it works BlowersModels 1.0 1.3 Ratings SyncInstallation must comply with Closet and alcove installationsDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Prevent combustion air contamination Provide air openings to roomFlooring and foundation Products to avoid When using an existing vent system to install a new boilerAreas likely to have contaminants When removing a boiler from existing common vent system Remove boiler from wood pallet5Combustion Air Through Ducts Minimum Recommended Combustion AIR Supply to Equipment Room Direct venting options Sidewall Vent General ventingDirect venting options Vertical Vent Install vent and combustion air piping Air intake/vent connectionsRequirements for installation in Canada SizingMaterials Air inlet pipe materialsOptional room air Material Standard Vent pipeVent fittings PrimerPolypropylene Centrotherm InnoFlue SW Duravent PolyproStainless steel vent Supplied with the vent systemVent/air termination sidewall Sidewall direct ventingDetermine location 2B Alternate Clearance to Gravity Air Inlets Prepare wall penetrations Found in this manualPrepare wall penetrations Alternate Field Supplied Options Multiple vent/air terminationsVent/air termination vertical Vertical direct ventingPrepare roof penetrations 3Vertical Terminations with Multiple Boilers Hydronic piping Near boiler piping connections Circulator sizingHot Water Generator pump sizing ExampleNear boiler piping components 5Single Boiler Primary/Secondary Piping Model Number of Units Manifold Pipe Sizes in Inches mm Connecting gas supply piping Gas connectionsNatural gas Propane GasGAS Piping Size Chart Check inlet gas supplyGas valve replacement Gas PressureInstallation must comply with Field wiringLine voltage connections Enable Outdoor temperature sensorLouver proving switch Flow switch field suppliedSystem supply sensor Wiring of the cascade Alarm contactsBoiler management system Runtime contacts3Low Voltage Field Wiring Connections Condensate disposal Condensate drainFreeze protection when used Start-upCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuitsInspect/fill condensate system Inspect/check condensate lines and fittingsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boilerFor Your Safety Read Before Operating Set space heating operation Natural Gas PropaneConfiguration of the cascade Set Hot Water Generator HW operationOperating information GeneralProtection features Outdoor reset operation, if used Boiler temperature regulationCascade HW operation with cascade Sequence of the cascadeNight Setback operation with cascade Sequence of operation Sync control module 1Status ScreenOperating information 2Main Menu Screen Maintenance Maintenance and annual startup Service technicianOwner maintenance See the Sync User’s Information Manual for InstructionsMaintenance Flue vent system and air piping Check water systemCheck expansion tank Check boiler relief valveCheck ignition ground wiring Check all boiler wiringCheck control settings Check flame signal Cleaning boiler heat exchanger Model Kit Part Component Number DescriptionHandling ceramic fiber materials Niosh stated First AidDiagrams LOW Voltage 120 VAC High Voltage2Ladder DiagramPart 3Wiring Diagram Page
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