Lochinvar 151 Field wiring, Installation must comply with, Line voltage connections

Page 48

8 Field wiring

Installation & Operation Manual

￿WARNING

NOTICE

￿CAUTION

ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.

Wiring must be N.E.C. Class 1.

If original wiring as supplied with the water heater must be replaced, use only type 105°C wire or equivalent.

The water heater must be electrically grounded as required by National Electrical Code ANSI/NFPA 70 – latest edition.

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

Installation must comply with:

1.National Electrical Code and any other national, state, provincial, or local codes, or regulations.

2.In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.

Line voltage connections

1.

Connect 120 VAC power wiring to the line voltage

 

terminal strip in the junction box, as shown in FIG. 8-1.

2.

Provide and install a fused disconnect or service switch

 

(15 amp recommended) as required by the code (see

 

FIG. 8-1).

3.

The DHW (water heater) pump is shipped loose on all

 

Armor models. Wire the water heater pump as shown in

 

FIG. 8-1.

4.

The Armor water heater is capable of controlling a

 

building recirculation pump (field supplied). Wire the

Figure 8-1Line Voltage Field Wiring Connections

DOMESTIC

SERVICE

 

120V SUPPLY

HOT WATER

 

 

 

 

 

SWITCH

 

LINE

GROUND

NEUTRAL

PUMP

 

 

L2/N

 

 

BK

 

 

W

G

L1

G

W

G

 

 

 

 

 

 

BK

 

 

 

 

 

 

RECIRCULATION

 

 

 

 

 

 

PUMP

L4/N

G L3

 

 

 

 

W

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

BK

 

 

 

 

 

 

building recirculation pump as shown in FIG. 8-1.

5. Dry contacts are sized for 1 hp/120V, 2 hp/240V or

15A/120V, 25A/240V.

Low voltage connections

1.Route all low voltage wires through the knockouts in the rear of the water heater, as shown in FIG. 8-2.

2.Connect low voltage wiring to low voltage connection board as shown in FIG. 8-3 on page 51 of this manual and the water heater wiring diagram.

Figure 8-2Routing Field Wiring (Models 151 - 286)

LOW VOLTAGE

CONNECTION BOARD

LOW VOLTAGE

WIRING KNOCKOUTS

LINE VOLTAGE WIRING KNOCKOUTS

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Contents Installation&OperationManual Models 151 What to do if YOU Smell GASContents When servicing the water heater Please read before proceedingArmor Water Heater How it works Stainless steel heat exchangerModels 151 Models 400 Models 601Ratings CSAInstallation must comply with Closet and alcove installationsDetermine water heater location Before locating the water heater, check1Closet Installation Minimum Required Clearances Residential garage installation Provide air openings to roomVent and air piping Flooring and foundationProducts to avoid Areas likely to have contaminantsDetermine water heater location Prepare water heater Gas conversionsRemove water heater from wood pallet Models 1513Installing Propane Orifice Model ModelModels 601 Leveling the water heaterGeneral venting Direct venting options Sidewall VentDirect venting options Vertical Vent Direct venting options Vertical Vent, Sidewall AirInstall vent and combustion air piping Requirements for installation in CanadaInstalling vent or air piping PVC/CPVC Vent piping materialsPVC/CPVC Air intake/vent connections Vent Pipe, and FittingsAir inlet pipe materials Stainless steel ventStainlesssteelairintake/ventconnections FlueFlue Intake Air Adapter Termination Model Kit NumberRemoving from existing vent Model Air Intake VentVent and air system Optional room air Vent, air piping and terminationModel Kit Number Description Air contaminationIf using the alternate sidewall termination Sidewall direct ventingVent/air termination sidewall Determine location3AClearance to Gravity Air Inlets Prepare wall penetrations Seal all wall cavitiesPrepare wall penetrations Alternate Field Supplied Option Multiple vent/air terminationsTermination and fittings Sidewall termination installation Sidewall termination optional concentric vent Models 151Description and usage 11 Concentric 13Concentric Vent Sidewall Attachment Multiventing sidewall terminationsVertical direct venting Vent/air termination verticalPrepare roof penetrations Multiple vent/air terminationsVertical termination installation Vertical termination optional concentric vent Models 151Multiventing vertical terminations Minimum Combustion AIR TypicalAlternate vertical concentric venting Concentric Venting ArrangementExisting vent as a chase 10Existing Vent as a ChaseFlow switch and relief valve installation Flow switch adjustmentSystem piping System water piping methodsScalding Piping componentsWater chemistry 4Single Heater Single Tank 2 Temperature Cold Water Supply Cold Water Supply Number of Units Model 8Double Heater Double Tank 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 pressureField wiring Installation must comply withLine voltage connections Low voltage connectionsTank thermostat Low gas pressure switch Louver proving switchHigh gas pressure switch Flow switchAlarm contacts Wiring of the cascadeRuntime contacts 3Low Voltage Field Wiring Connections Condensate disposal Condensate drainStart-up Check for gas leaks Inspect/fill condensate systemChlorine concentration less than 200 ppm Inspect/check condensate lines and fittingsFinal checks before starting the water heater Start the water heaterIf water heater does not start correctly Check system and water heaterFor Your Safety Read Before Operating 3Operating Instructions Models 400 Set tank set point temperature Verify WHR circulator modeSet water heater operation Natural Gas PropaneConfiguration of the cascade Set clockOperating information GeneralWater heater temperature regulation Installer CascadeSequence of the cascade UserSequence of operation Operation DisplayArmor water heater control module 1Control PanelWater heater Information Dial Function Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check ignition ground wiring Check all water heater wiringCheck control settings Check water systemCheck flame signal Cleaning heat exchangerPerform start-up and checks Check burner flameCheck Delta T Oiled bearing circulatorsModel Kit Part Component Number Description Diagrams PC Interface2Wiring Diagram Page Page AWII-I-O Rev C
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Manual 16 pages 16.89 Kb

151 specifications

Lochinvar 151,286 is a notable model in the realm of commercial water heating solutions, designed primarily for large-scale applications. This model incorporates advanced technologies and features that set it apart in terms of efficiency, usability, and reliability.

One of the hallmark features of Lochinvar 151,286 is its high-efficiency system that leverages condensing technology. This technology enables the unit to extract additional heat from exhaust gases, allowing it to operate at an impressive annual fuel utilization efficiency (AFUE) rating. This not only reduces energy consumption, but it also significantly lowers operational costs.

The Lochinvar 151,286 is equipped with a robust stainless steel heat exchanger, which provides both durability and enhanced thermal efficiency. This design withstands the rigors of high-demand environments, making it ideal for restaurants, schools, hospitals, or any facility requiring consistent hot water supply. Its compact footprint allows it to be installed in tight spaces without sacrificing performance.

Another standout characteristic is its intelligent control system. The built-in touchscreen interface offers users an intuitive way to manage settings, monitor performance, and troubleshoot issues. This smart technology aids in simplifying maintenance and improves overall system reliability. The unit also features advanced safety protocols, including multiple sensors that monitor operation and provide alerts in case of irregular performance.

In terms of capacity, the Lochinvar 151,286 can deliver an impressive output, accommodating varying demands with ease. Its innovative modulation capabilities allow the unit to adjust its heating output based on real-time hot water needs, ensuring unmatched comfort and efficiency.

Supporting the model’s performance are versatile connectivity options. Lochinvar 151,286 can integrate seamlessly with building management systems, allowing facility managers to monitor and control heating processes remotely. This level of connectivity not only enhances control but also supports energy-saving strategies across the facility.

In conclusion, Lochinvar 151,286 stands out as a premium choice for commercial water heating needs. With its high-efficiency ratings, durable construction, intelligent control system, impressive capacity, and versatile connectivity, it ensures that hot water is delivered reliably and efficiently, meeting the demands of modern businesses while reducing energy costs. This combination of technology and design makes it an essential component for any large-scale facility focused on performance and sustainability.
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