Lochinvar 5 operation manual Diagrams, LOW Voltage 120 VAC High Voltage

Page 63

Installation & Operation Manual

12 Diagrams

Figure 12-1Ladder Diagram_Part 1

BOX DEPICTS

OPTIONAL ITEMS

LOW VOLTAGE 120 VAC HIGH VOLTAGE

CONTROL

CONTROL

MODULE 1

 

MODULE 2

LOUVER

 

 

RELAY 1

X8

 

X6-8

X8

 

 

 

 

X5-7

 

 

X5-7

 

 

 

 

24V

LOUVER

 

24V

 

 

 

 

X5-4

RELAY 2

 

X5-4

 

FLAP

 

AIR PRESSURE

FLAP

AIR PRESSURE

 

VALVE

 

SWITCH

VALVE

SWITCH

 

 

 

 

 

 

 

X5-14

 

 

X5-14

 

 

 

 

 

 

 

 

 

 

HI-LIMIT

 

 

HI-LIMIT

X6-8

 

 

 

 

 

 

 

 

 

 

 

X5-8

 

 

 

INLET

 

 

 

 

INLET

 

X5-8

SENSOR

 

 

 

 

SENSOR

 

 

 

 

 

 

X5-1

 

 

X5-1

OUTLET

 

 

 

X5-9

OUTLET

 

X5-9

SENSOR

 

 

 

SENSOR

 

 

 

 

 

X5-2

 

 

X5-2

FLUE

 

 

 

 

FLUE

 

 

SENSOR

 

 

 

 

SENSOR

 

 

 

 

 

 

X5-3

 

 

 

 

BLOCKED

 

 

 

X5-3

 

 

 

 

 

 

DRAIN

 

 

 

 

 

 

AUTO RESET

X5-10

AUTO RESET

X5-10

 

 

 

HIGH LIMIT

 

HIGH LIMIT

GAS VALVE

 

 

X2-2

 

GAS VALVE

X2-2

 

 

 

 

 

GAS VALVE

 

 

GAS VALVE

 

 

 

X2-1

RELAY

 

X2-1

RELAY

BLOWER

 

 

1

X5-5

BLOWER

1

X5-5

 

 

 

2

X5-13

 

2

X5-13

 

 

 

4

X5-6

 

4

X5-6

 

 

 

5

X5-12

 

5

X5-12

 

 

 

TR1

 

 

TR1

 

 

 

 

X1-7

 

 

X1-7

 

SPARK

 

 

FLAME ROD

SPARK

FLAME ROD

 

 

 

 

 

 

ROD

 

 

 

 

ROD

 

 

CAUTION

HIGH VOLTAGE SPARK LEAD

 

CAUTION

HIGH VOLTAGE SPARK LEAD

SHIELD

CASCADE

RS485

SHIELD

TANK

SENSOR

OUTDOOR

SENSOR

SYSTEM

SENSOR

-

EXTERNALCONTROL 10VDC

+

SHIELD

MOD BUS

RS485

SHIELD

CONNECTION BOARD

CN3

CN4-3

CN3-16

 

CN3-15

CN4-1

 

CN3-14

CN4-2

 

CN3-13

CN4-4

 

CN3-12

CN4-6

 

CN3-11

 

CN3-10

CN4-5

 

CN3-9

CN4-8

 

CN3-8

CN4-7

 

CN3-7

CN4-9

 

CN3-6

 

CN3-5

CN4-10

 

CN3-4

 

CN3-3

 

CN3-2

 

CN3-1

 

4CONTROL MODULE 1

X4-3

X4

X4-1

X4-2

X4-4

X4-6

X4-5

X4-8

X4-7

X4-9

X4-10

MOD BUS

KIT

X4-3

X4-1

X4-2

X4-4

CONTROL MODULE 2

X4

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 LBL20058 REV E

63

Image 63
Contents Save this manual for future reference Contents Please read before proceeding When servicing boilerBlowers Sync How it worksModels 1.0 1.3 Sync RatingsBefore locating the boiler, check Installation must comply withCloset and alcove installations Determine boiler location1Closet Installation Minimum Required Clearances Provide air openings to room Prevent combustion air contaminationFlooring and foundation When using an existing vent system to install a new boiler Products to avoidAreas likely to have contaminants Remove boiler from wood pallet When removing a boiler from existing common vent system5Combustion Air Through Ducts Minimum Recommended Combustion AIR Supply to Equipment Room General venting Direct venting options Sidewall VentDirect venting options Vertical Vent Air intake/vent connections Install vent and combustion air pipingSizing Requirements for installation in CanadaAir inlet pipe materials MaterialsOptional room air Primer Material StandardVent pipe Vent fittingsCentrotherm InnoFlue SW Duravent Polypro PolypropyleneSupplied with the vent system Stainless steel ventSidewall direct venting Vent/air termination sidewallDetermine location 2B Alternate Clearance to Gravity Air Inlets Found in this manual Prepare wall penetrationsMultiple vent/air terminations Prepare wall penetrations Alternate Field Supplied OptionsVertical direct venting Vent/air termination verticalPrepare roof penetrations 3Vertical Terminations with Multiple Boilers Hydronic piping Circulator sizing Near boiler piping connectionsExample Hot Water Generator pump sizingNear boiler piping components 5Single Boiler Primary/Secondary Piping Model Number of Units Manifold Pipe Sizes in Inches mm Gas connections Connecting gas supply pipingPropane Gas Natural gasCheck inlet gas supply GAS Piping Size ChartGas Pressure Gas valve replacementField wiring Installation must comply withLine voltage connections Flow switch field supplied EnableOutdoor temperature sensor Louver proving switchRuntime contacts System supply sensor Wiring of the cascadeAlarm contacts Boiler management system3Low 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 correctlyFor Your Safety Read Before Operating Natural Gas Propane Set space heating operationSet Hot Water Generator HW operation Configuration of the cascadeGeneral Operating informationProtection features Boiler temperature regulation Outdoor reset operation, if usedCascade Sequence of the cascade HW operation with cascadeNight Setback operation with cascade Sequence of operation 1Status Screen Sync control moduleOperating information 2Main Menu Screen See the Sync User’s Information Manual for Instructions Maintenance Maintenance and annual startupService technician Owner maintenanceMaintenance 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 exchangerNiosh stated First Aid Handling ceramic fiber materialsLOW Voltage 120 VAC High Voltage Diagrams2Ladder DiagramPart 3Wiring Diagram Page
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5 specifications

Lochinvar 5 is a cutting-edge residential boiler designed to meet the heating needs of modern homes while ensuring high efficiency and user convenience. As one of the latest offerings from Lochinvar, a trusted name in the heating industry, the Lochinvar 5 combines advanced technology with robust features that make it a top choice for homeowners and contractors alike.

One of the standout characteristics of the Lochinvar 5 is its impressive energy efficiency. It boasts an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%, which significantly reduces fuel consumption compared to traditional heating systems. This not only translates to lower energy bills for homeowners but also minimizes the environmental impact, aligning with the growing demand for sustainable energy solutions.

The Lochinvar 5 employs a highly efficient modulating burner technology that optimizes fuel usage based on real-time heating demand. This ensures that the boiler operates at peak efficiency, providing consistent warmth without unnecessary energy waste. The inclusion of advanced controls further enhances its performance, allowing users to adjust settings easily and monitor usage through a user-friendly digital display.

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In addition to its impressive performance metrics, Lochinvar 5 is equipped with smart technology features that cater to the needs of modern consumers. Wi-Fi connectivity enables remote monitoring and control via a mobile app, giving homeowners the ability to adjust settings on the go. This feature not only enhances user convenience but also allows for proactive maintenance and alerts, helping to prevent potential issues before they arise.

Safety is a key consideration in the design of Lochinvar 5. It includes multiple safety features, such as a sealed combustion system that minimizes the risk of carbon monoxide leaks and an advanced monitoring system that ensures optimal operating conditions at all times.

In conclusion, the Lochinvar 5 stands out as an exceptional choice for those seeking a reliable, efficient, and smart residential heating solution. Its combination of advanced technologies, user-friendly features, and robust construction make it a leading option in the boiler market, ready to meet the demands of today’s homeowners. With an eye on energy efficiency and ease of use, Lochinvar 5 is well-equipped to provide comfortable, cost-effective heating for years to come.