Installation & Operation Manual

Ratings

Knight Boiler

I=B=R Rating

 

 

Input

Gross

Net

 

 

Output

Model Number

 

MBH

I=B=R

 

MBH

 

 

 

 

 

Ratings

 

 

 

 

 

Water,

Note: Change “N” to

 

(Note 5)

 

MBH

“L” for L.P. gas models.

 

 

 

 

 

 

 

 

 

 

 

 

Min

 

Max

(Note 2,7)

(Note 3,7)

KBN081

16

 

80

72

63

 

 

 

 

 

 

KBN106

21

 

105

94

82

 

 

 

 

 

 

KBN151

30

 

150

135

117

 

 

 

 

 

 

KBN211

42

 

210

190

165

 

 

 

 

 

 

KBN286

57

 

285

260

226

 

 

 

 

 

 

Other Specifications

Boiler

 

 

 

Vent

 

 

Air

Size

Water

Water

Gas

 

Size

 

Content

Connections

Connections

(Note 4)

Gallons

 

 

 

 

 

 

 

 

0.6

1"

1/2"

3"

3"

 

 

 

 

 

0.7

1"

1/2"

3"

3"

 

 

 

 

 

1.3

1"

1/2"

3"

3"

 

 

 

 

 

1.7

1"

1/2"

3"

3"

 

 

 

 

 

2.4

1-1/4"

3/4"

4"

4"

 

 

 

 

 

NOTICE

Maximum allowed working pressure is located on the rating plate.

 

 

8. Knight boilers comply with the requirements of CSD-1

Notes:

 

 

Section CW-400 requirements as a temperature operation

1. As an Energy Star Partner, Lochinvar has determined that

control. The manual reset high limit provided with the

Knight boilers meet the Energy Star guidelines for energy

Knight is listed to UL353.

efficiency.

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

3.Net I=B=R 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.

Knight boilers require special gas venting. Use only

UNIT EQUIPPED FOR

 

the vent materials and methods specified in the Knight

HIGH ALTITUDE

 

Installation and Operation Manual.

 

 

5.

Standard Knight boilers are equipped to operate from sea

3,000 FT. TO 12,000 FT.

 

 

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.

 

6.

High altitude Knight boilers are equipped to operate

 

 

from 3,000 to 12,000 feet only with no field adjustments.

 

 

The boiler will de-rate by 2% for each 1,000 feet above

 

 

3,000 feet. High altitude models are manufactured with

 

 

a different control module for altitude operation, but the

 

 

operation given in this manual remains the same as the

 

 

standard boilers. A high altitude label (as shown in FIG. A)

Figure A High Altitude Label Location

 

is also affixed to the unit.

 

7.

Ratings have been confirmed by the Hydronics Institute,

7

 

Section of AHRI.

 

Page 6 Page 8
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Lochinvar 81 - 286 operation manual Ratings, Knight Boiler =B=R Rating
Page 6 Page 8

81 - 286 specifications

Lochinvar 81 - 286 is a state-of-the-art boiler recognized for its efficiency and reliability in both residential and commercial applications. This high-performance heating solution is designed to meet the diverse needs of users while adhering to modern environmental standards.

One of the standout features of the Lochinvar 81 - 286 is its advanced condensing technology. This allows the unit to harness more heat from the combustion gases, significantly boosting its thermal efficiency. With an impressive efficiency rating of over 95%, users can expect lower energy bills and reduced carbon emissions, making this boiler an environmentally friendly choice.

The Lochinvar 81 - 286 incorporates a robust stainless steel heat exchanger that guarantees durability and longevity. This corrosion-resistant material not only prolongs the unit's life but also ensures consistent performance over time. Additionally, the heat exchanger’s design facilitates optimal heat transfer, further enhancing the boiler's efficiency.

In terms of control, the Lochinvar 81 - 286 features a user-friendly control interface that simplifies operation. The boiler is equipped with advanced modulation capabilities, allowing it to adjust its output based on real-time heating demands. This responsiveness reduces energy waste and optimizes comfort levels within the space it serves.

The boiler also supports a variety of installation configurations, providing flexibility for different building layouts. Its compact design allows for easy installation in restricted spaces, while versatile venting options facilitate integration into various systems.

Safety is a paramount consideration in the design of the Lochinvar 81 - 286. The unit comes with integrated safety features such as a built-in diagnostic system that alerts users to any potential issues before they escalate. This proactive technology helps in maintaining seamless operation and reducing downtime.

Finally, the Lochinvar 81 - 286 is compliant with the latest regulations and industry standards, ensuring that it meets the expectations of both consumers and environmental agencies. With its impressive combination of efficiency, durability, and advanced technology, the Lochinvar 81 - 286 stands out as a top choice for anyone seeking a high-performance heating solution. This boiler not only addresses the immediate needs of heating but also supports long-term sustainability initiatives, proving to be a wise investment for the future.
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