Lochinvar 151-286 operation manual Ratings, Outdoor Knight Boiler Ahri Rating

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Outdoor Knight Boiler Installation & Operation Manual

Ratings

A

SME

H

Outdoor Knight Boiler

AHRI Rating

 

Input

Heating

Net

AFUE

Model Number

MBH

Capacity

AHRI

%

MBH

 

 

 

 

Ratings

 

 

 

 

 

Water,

 

Note: Change “N” to

(Note 4)

 

MBH

 

“L” for L.P. gas models.

 

 

 

 

 

 

 

 

 

 

 

 

Max

Min

(Note 2,5)

(Note 3,5)

(Note 1, 5)

OKN151

30

150

141

122

94

 

 

 

 

 

 

OKN211

42

210

197

171

94

 

 

 

 

 

 

OKN286

57

285

266

232

94

 

 

 

 

 

 

Other Specifications

Boiler

 

 

Air

Water

Water

Gas

Size

Content

Connections

Connections

Gallons

 

 

 

 

 

 

 

1.3

1"

1/2"

3"

 

 

 

 

1.7

1"

1/2"

3"

 

 

 

 

2.4

1-1/4"

3/4"

4"

 

 

 

 

NOTICE

Maximum allowed working pressure is located on the rating plate.

Notes:

1.As an Energy Star Partner, Lochinvar has determined that outdoor boilers meet the Energy Star guidelines for energy efficiency.

2.The ratings are based on standard test procedures prescribed by the United States Department of Energy.

3.Net AHRI ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of 1.15.

4.Standard outdoor boilers are equipped to operate from sea level to 4,500 feet only with no adjustments. The boiler will de-rate by 4% for each 1,000 feet above sea level up to 4,500 feet.

5.Ratings have been confirmed by the Hydronics Section of AHRI.

6.Outdoor boilers temperature controls comply with the requirements of CSD-1 Section CW-400 requirements. The manual reset high limit provided with the outdoor boiler is listed to UL353.

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Contents Save this manual for future reference Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Outdoor Knight Boiler How it worksModels 151 Model Outdoor Knight Boiler Ahri Rating RatingsDetermine boiler location Installation must comply withBefore locating the boiler, check Outdoor vent / air intake location Flooring and foundation Provide clearancesPrevent combustion air contamination Remove boiler from wood pallet Prepare boilerGas conversions 286 Leveling the boilerHydronic piping Near boiler piping components Indirect water heaters System temperature sensorNear boiler piping connections Circulator sizingMinimum Pipe Pump Size Grundfos FeetPressure ModelUP26-96 FC/VS IFC VS Stratos 1.25 3 x Smart System / Multi-temperature loop control optionVariable speed pump setup Variable speed pump optionZone #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 Gas connections Connecting gas supply pipingPropane Gas Natural gasCheck inlet gas supply Single Unit Natural Gas Pipe Capacity ChartLength of Pipe in Straight Feet for 1/2 PSI Gas Pressure Gas valve replacementLow voltage connections Field wiringInstallation must comply with Line voltage connectionsThermostat Outdoor temperature sensorHigh gas pressure switch Low gas pressure switchSystem supply sensor Flow switch Runtime contactsAlarm contacts Wiring of the cascade3Low 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 correctly2Operating Instructions Natural Gas Propane Set space heating operationConfiguration of the cascade Verify DHW modeSet domestic hot water DHW operation How the control module operates Operating informationGeneral How the boiler operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operationOperation Display Sequence of operationStandby, ready to start a new cycle User Access modesInstaller Outdoor Knight boiler control moduleCall for Heat Operating information Dial Function Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance 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 exchangerReview with owner Oiled bearing circulatorsPC Interface DiagramsHigh Voltage 120 VAC

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.
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