Installation & Operation Manual

6 Hydronic piping (continued)

12.Boiler purge valve:

Field supplied. The boiler purge valve is used to remove entrapped air from the heat exchanger during start-up.

13.System temperature sensor:

Lochinvar supplies a system temperature sensor. The sensor is to be installed in the heating loop downstream from the boiler hot water piping and heating loop junction. The sensor should be located far enough downstream to sense system diluted water temperature.

14.Y-Strainer:

Field supplied. A Y-strainer or equivalent multipurpose strainer is recommended at the inlet of the heat exchanger to remove system particles from older hydronic systems and protect newer systems.

Circulator sizing

The Knight XL heat exchanger does have a pressure drop, which must be considered in your system design. Refer to the graphs in FIG’s 6-5 and 6-6 for pressure drop through the Knight XL heat exchanger.

Near boiler piping connections

Figure 6-4ANear Boiler Piping w/Y-Strainer

Figure 6-4BNear Boiler Piping w/Low Loss Header

SYSTEM PUMP

 

 

 

SYSTEM SENSOR

 

 

M

 

 

O E

 

 

T

T

AIR SEPARATOR

 

 

S

 

SY

DRAIN

 

 

 

(TYPICAL)

 

M

M

 

 

 

O

AIR VENT VALVE

R

E

F

S

 

 

 

T

 

 

Y

 

LOW LOSS HEADER

S

 

 

 

 

 

(TYPICAL)

 

 

 

 

EXPANSION TANK

 

FAST FILL VALVE

 

INDIRECT

 

 

 

DRAIN

 

M

DOMESTIC

 

HOT WATER

O

VALVE

F

 

 

R

 

 

 

O

TANK

 

 

 

T

 

Y-STRAINER (RECOMMENDED)

BOILER PUMP

TO FLOOR

DRAIN

Variable speed pump option

DIRT SEPARATOR

SYSTEM SENSOR

SYSTEM PUMP

O

T

M

E

T

S

Y

S

Y-STRAINER (RECOMMENDED)

BOILER PUMP

 

M

M

 

O

 

R

E

F

 

T

 

 

S

 

 

Y

 

 

S

 

 

DOMESTIC HOT

WATER PUMP INDIRECT

M

DOMESTIC

HOT WATER

O

F

R

 

O

TANK

 

T

 

Variable speed pump setup

Before operation, ensure the following:

-Pump is set for an input signal of 0 - 10VDC by the dip switches on the pump control

-Pump is set for external signal control (if applicable)

-Pump is set for linear output (if applicable)

-If pump does not come equipped with a 0 - 10 VDC input option, an optional module will be required from the vendor

TO FLOOR

DRAIN

39

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Image 39
Lochinvar 400, 801 operation manual Near boiler piping connections, Circulator sizing, Variable speed pump option
Page 38 Page 40

400, 801 specifications

The Lochinvar 801,400 is a cutting-edge solution in the realm of high-efficiency commercial water heating. This model represents a significant advancement in the design and functionality of water heaters, catering primarily to the demands of large-scale facilities like hotels, hospitals, and large industrial operations.

One of the standout features of the Lochinvar 801,400 is its impressive heating capacity, which can produce up to 801,400 BTUs, making it suitable for high-demand applications. This output is crucial for establishments that require a consistent supply of hot water, such as commercial kitchens and laundry facilities. The robust design ensures that it can handle peak demand periods without compromising performance.

Another significant aspect is the innovative use of advanced technology in its operation. The Lochinvar 801,400 integrates smart controls that enhance its efficiency and ease of operation. These controls allow for precise monitoring and adjustment of water temperatures, ensuring that the system operates within optimal parameters while maximizing energy savings. The intelligent monitoring system can provide real-time updates, making it easier for facility managers to keep track of performance and address maintenance needs proactively.

The construction of the Lochinvar 801,400 incorporates durable materials that not only enhance the longevity of the unit but also offer resistance to corrosion and wear. This durability translates into lower maintenance costs and an extended lifespan for the unit, making it a worthwhile investment for businesses.

Moreover, the Lochinvar 801,400 is designed with energy efficiency in mind. It boasts a high thermal efficiency rating, which reduces operational costs and minimizes the carbon footprint of heating operations. This efficiency is critical in today’s environmentally conscious market, where businesses are seeking to reduce their energy consumption and comply with strict regulations.

The design of the Lochinvar 801,400 also prioritizes safety, featuring innovative safety controls and fail-safes that protect both the unit and the users.

In summary, the Lochinvar 801,400 offers a combination of high capacity, advanced technology, durability, and energy efficiency, making it an excellent choice for commercial water heating solutions. As industries continue to evolve, the demand for reliable and efficient water heating solutions like the Lochinvar 801,400 will only increase.
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