Installation & Operation Manual

6 Hydronic piping (continued)

Figure 6-10Multiple Boilers - Non-Zoned Primary/Secondary Piping

 

 

 

Number of Units

 

 

Model

2

3

4

5

6

 

7

8

 

 

 

Required Pipe Sizes

 

 

81

1-1/4"

1-1/2"

2"

2"

2-1/2"

 

2-1/2"

2-1/2"

106

1-1/2"

2"

2"

2-1/2"

2-1/2"

 

2-1/2"

3"

151

2"

2"

2-1/2"

2-1/2"

3"

 

3"

3-1/2"

211

2"

2-1/2"

3"

3"

3-1/2"

 

4"

4"

286

2-1/2"

2-1/2"

3"

3-1/2"

3-1/2"

 

4"

5"

PRESSURE

 

 

REDUCING VALVE

PRESSURE

 

 

 

BACKFLOW

GAUGE

 

 

 

PREVENTER

 

 

MAKE UP WATER

SYSTEM SUPPLY

 

 

SENSOR

 

SYSTEM

AIR SEPARATOR

MAY SUBSTITUTE LOW LOSS HEADER

CIRCULATOR

 

TO

 

FROM

SYSTEM

 

 

SYSTEM

 

 

NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART

BALL VALVE

 

 

(TYPICAL)

EXPANSION

 

 

 

 

TANK

DRAIN POINT

 

 

 

 

(TYPICAL)

Y-STRAINER

(RECOMMENDED)

(TYPICAL)

 

 

ANTI-SCALD

 

HOT

 

 

 

WATER

 

MIXING VALVE

 

OUT

FLOW CHECK

 

 

DOMESTIC

 

 

 

 

 

 

 

 

 

VALVE

HOT WATER

 

 

 

 

 

COLD WATER

 

 

 

CIRCULATOR

 

 

 

 

 

 

 

IN

 

BOILER

CIRCULATOR

TEMPERATURE /

UNION

DRAIN

PRESSURE

(TYPICAL)

 

GAUGE

 

 

 

BOILER 4

BOILER 3

BOILER 2

BOILER 1

INDIRECT

(MEMBER 3)

(MEMBER 2)

(MEMBER 1)

(LEADER)

DHW TANK

 

 

 

 

NOTICE

Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.

45

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Lochinvar 81 - 286 operation manual 10Multiple Boilers Non-Zoned Primary/Secondary Piping
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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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