Lochinvar 151-286 operation manual Contents

Page 2

Contents

HAZARD DEFINITIONS

2

5. FIELD WIRING

 

PLEASE READ BEFORE PROCEEDING

3

Line Voltage Connections

28

THE OUTDOOR KNIGHT BOILER -- HOW IT WORKS 4-6

Low Voltage Connections

28

RATINGS

7

Wiring of the Cascade

30

1. DETERMINE BOILER LOCATION

 

6. CONDENSATE DISPOSAL

 

Provide Clearances

9

Condensate Drain

32

Corrosive Contaminants and Sources

9

7. STARTUP

33-38

2. PREPARE BOILER

 

8. OPERATING INFORMATION

 

Remove Boiler from Wood Pallet

10

General

39

Gas Conversions

10-11

Cascade

42

Leveling the Boiler

11

Sequence of Operation

43-44

3. HYDRONIC PIPING

 

Outdoor Knight Boiler Control Module

45

System Water Piping Methods

12

Status Display Screens

46-48

Low Water Cutoff Device

12

9. MAINTENANCE

 

Chilled Water System

12

Maintenance and Annual Startup

49-53

Freeze Protection

12

10. DIAGRAMS

 

General Piping Information

12

Ladder Diagram

54

Relief Valve / T & P Installation

13

Wiring Diagram

55

Near Boiler Piping Components

13-14

Revision Notes

Back Cover

Near Boiler Piping Connections

14

 

 

Circulator Sizing

14

 

 

Variable Speed Pump Option

16

 

 

4. GAS CONNECTIONS

 

 

 

Connecting Gas Supply Piping

24-25

 

 

Natural Gas

25

 

 

Pipe Sizing for Natural Gas

25

 

 

Natural Gas Supply Pressure Requirements

25

 

 

Propane Gas

25

 

 

Pipe Sizing for Propane Gas

25

 

 

Propane Supply Pressure Requirements

25

 

 

Check Inlet Gas Supply

26

 

 

Gas Pressure

27

 

 

Gas Valve Replacement

27

 

 

Hazard definitions

The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product.

￿DANGER

￿WARNING

￿CAUTION CAUTION NOTICE

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

NOTICE indicates special instructions on installation, operation, or maintenance that are important but not related to personal injury or property damage.

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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 RatingBefore locating the boiler, check Installation must comply withDetermine boiler location Prevent combustion air contamination Provide clearancesOutdoor vent / air intake location Flooring and foundation Gas conversions Prepare boilerRemove boiler from wood pallet 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 GasLength of Pipe in Straight Feet for 1/2 PSI Single Unit Natural Gas Pipe Capacity ChartCheck inlet gas supply 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 PropaneSet domestic hot water DHW operation Verify DHW modeConfiguration of the cascade 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 Owner maintenance Maintenance Maintenance and annual startupService technician 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.