Installation & Operation Manual

6Hydronic piping

Figure 6-8Multiple Boilers - Primary/Secondary Piping

 

 

 

Number of Units

 

 

Model

2

3

4

5

6

7

8

 

Manifold Pipe Sizes in Inches (mm)

 

399

2 1/2 (64)

3 (76)

3 1/2 (89)

4 (102)

4 (102)

5 (127)

6 (152)

500

3 (76)

3 1/2 (89)

4 (102)

5 (127)

5 (127)

6 (152)

6 (152)

600

3 1/2 (89)

4 (102)

5 (127)

5 (127)

6 (152)

6 (152)

8 (203)

700

3 1/2 (89)

5 (127)

5 (127)

6 (152)

6 (152)

8 (203)

8 (203)

800

4 (102)

5 (127)

5 (127)

6 (152)

8 (203)

8 (203)

8 (203)

MAY SUBSTITUTE

LOW LOSS HEADER

AIR SEPARATOR

DRAIN POINT (TYPICAL)

SYSTEM SUPPLY SENSOR (WHEN USED)

SYSTEM CIRCULATOR

BALL VALVE (TYPICAL)

M E T S Y S M O R F

4 D E E C X E O T T O N

 

T

 

R

 

A

 

P

 

A

 

"

2

1

 

F

 

O

 

.

 

X

 

A

 

M

 

R

 

O

 

IA

 

D

 

E

 

IP

 

P

 

MAKE UP WATER

M

 

 

E

 

 

T

 

 

S

 

EXPANSION

Y

 

 

S

 

O

 

TANK

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BACK FLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PREVENTER

 

 

PRESSURE REDUCING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VALVE

 

 

PRESSURE GAUGE

 

 

 

 

 

 

 

 

 

 

 

 

INDIRECT DHW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TANK

 

 

ANTI-SCALD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIXING VALVE

 

 

HOT WATER OUT

 

 

 

 

 

 

 

DOMESTIC

 

 

 

 

 

 

 

HOT WATER

 

 

CIRCULATOR

 

UNION (TYPICAL)

COLD WATER IN

 

 

 

 

 

FLOW CHECK

 

 

 

 

Y-STRAINER

 

 

VALVE (TYPICAL)

 

 

(TYPICAL)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(RECOMMENDED)

BOILER CIRCULATOR (TYPICAL)

BOILER 4 (MEMBER 3)

BOILER 3 (MEMBER 2)

BOILER 2 (MEMBER 1)

BOILER 1 (LEADER)

PRESSURE RELIEF

VALVE

DRAIN

TEMPERATURE /

PRESSURE GAUGE

NOTICE

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.

System flow should always remain higher than the required flow for the boiler(s) when the boiler(s) is in operation to prevent short cycling and high limit issues.

40

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Image 40
Lochinvar 399 operation manual Number of Units Model Manifold Pipe Sizes in Inches mm

399 specifications

Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 is a cutting-edge boiler designed for commercial heating applications. With its robust construction and high efficiency, this model stands out in the crowded market of heating solutions.

One of the main features of the Lochinvar 999 - 750 is its exceptional thermal efficiency rating. The unit incorporates advanced condensing technology that allows it to recover heat from flue gases, which helps in achieving efficiency levels of up to 99%. This efficiency not only reduces energy consumption but also lowers operational costs, making it an excellent investment for businesses looking to minimize their carbon footprint.

The boiler is designed to provide a powerful output of 750 kW, ensuring it meets the heating demands of larger buildings or commercial spaces. Its capacity makes it suitable for a range of applications including schools, hospitals, and industrial facilities. Moreover, the unit features a built-in cascading system that enables multiple boilers to be connected, enhancing system reliability and flexibility.

In terms of technology, the Lochinvar 999 - 750 is equipped with a user-friendly touchscreen interface. This innovative control system allows operators to monitor and adjust settings with ease, providing real-time performance data and alerts for maintenance needs. The intelligent controls optimize operation to match the heating load, further enhancing energy efficiency.

Safety is a top priority with this model. It is built with multiple safety features such as automatic shut-off valves, pressure relief valves, and flame monitoring systems, ensuring safe operation under various conditions. The unit also adheres to stringent industry standards and regulations, making it a reliable choice for commercial applications.

Furthermore, the Lochinvar 999 - 750 is designed with serviceability in mind. Its compact footprint and accessible components simplify maintenance, reducing downtime and associated costs. The unit also supports a variety of fuel sources, including natural gas, propane, and biodiesel, providing flexibility to meet different facility requirements.

In summary, the Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 represents a blend of efficiency, reliability, and safety in commercial heating. Its advanced technologies and thoughtful design make it a powerful solution for various heating needs, making it an ideal choice for businesses aiming for excellence in energy management and operational efficiency.