Installation & Operation Manual

6 Hydronic piping (continued)

Near boiler piping connections

Figure 6-1ANear Boiler Piping

 

 

Figure 6-1BNear Boiler Piping w/Low Loss Header

 

 

 

 

 

 

AIR

 

 

 

 

 

 

 

AIR

 

 

 

VENT

 

 

 

 

 

 

 

VENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DOMESTIC

OUTLET

 

 

 

 

 

 

 

 

 

 

HOT WATER

 

 

 

 

DOMESTIC HOT

 

 

 

 

INLET

 

 

 

 

 

OUTLET

 

 

PUMP

 

 

 

 

 

 

 

 

 

 

 

 

WATER PUMP

 

INLET

 

 

INDIRECT

 

 

 

 

 

M

 

 

 

 

 

DOMESTIC

CONDENSATE

 

 

 

O

 

 

 

 

M

 

 

R

INDIRECT

 

 

 

 

 

 

F

 

 

 

 

O

HOT WATER

 

 

 

 

 

 

 

 

FR

 

DRAIN

 

 

 

 

DOMESTIC

 

CONDENSATE

 

O

TANK

 

 

 

 

 

HOT WATER

 

DRAIN

T

M

 

 

O

 

 

TANK

 

 

 

 

 

 

T

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

SYSTEM

 

 

 

Y

 

 

 

 

 

 

BOILER

 

 

S

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

PUMP

 

 

T

 

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

TO

FROM

SYSTEM

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

AIR

VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO FLOOR

 

 

SYSTEM

TO FLOOR

SEPARATORCHECK

 

 

 

 

 

 

DRAIN

 

 

PUMP

DRAIN

AIR VENT

 

 

 

 

 

 

 

 

 

 

VALVE

 

 

 

SYSTEM

 

 

 

 

 

BOILER

 

 

 

 

 

 

 

 

 

 

 

 

PUMP

 

 

 

 

 

PUMP

 

 

 

 

 

 

 

Y-STRAINER

AIR

 

 

 

 

 

 

 

FILL VALVE

 

(RECOMMENDED)

 

 

 

 

 

 

 

 

SEPARATOR

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

Y-STRAINER

 

 

 

 

 

 

 

T

EXPANSION TANK

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

SY

 

 

(RECOMMENDED)

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

EXPANSION TANK

O

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

LOW LOSS HEADER

 

 

 

 

 

DRAIN (TYPICAL)

 

 

 

 

 

(TYPICAL)

 

 

 

DRAIN VALVE

 

 

 

 

Circulator sizing

The Knight wall mount boiler heat exchanger does have a pressure drop, which must be considered in your system design. Refer to the graph in FIG. 6-2 for pressure drop through the Knight wall mount boiler heat exchanger.

35

Page 35
Image 35
Lochinvar WH 55-399 operation manual Near boiler piping connections, Circulator sizing

WH 55-399 specifications

The Lochinvar WH 55-399 is a high-efficiency water heater designed for residential and commercial applications, offering a reliable solution for hot water needs. This model represents an advanced approach to water heating, combining cutting-edge technologies and features that ensure optimal performance and energy efficiency.

One of the standout features of the Lochinvar WH 55-399 is its high thermal efficiency, which is a key factor in reducing energy consumption and operating costs. With an efficiency rating exceeding 90%, this water heater ensures that more energy is converted into usable hot water, making it an environmentally friendly choice.

The WH 55-399 utilizes advanced condensing technology, which allows it to extract additional heat from the exhaust gases before they are expelled. This process not only increases efficiency but also significantly decreases greenhouse gas emissions. The unit is also equipped with an intelligent control system that allows for precise temperature adjustments, ensuring that the user has an optimal supply of hot water while maintaining energy savings.

Another important aspect of this model is its impressive recovery rate. The ability to quickly heat water after a significant draw ensures that users will not experience interruptions in their hot water supply, making it ideal for busy households or commercial environments. This is particularly beneficial in applications requiring consistent hot water availability, such as restaurants or athletic facilities.

The Lochinvar WH 55-399 is designed with durability in mind. Constructed from high-quality materials, this water heater boasts a robust tank lined with corrosion-resistant coatings, extending the lifespan of the unit and reducing maintenance needs. Additionally, it features a reliable gas burner and a well-insulated tank, contributing to its overall efficiency and performance.

Safety is also a priority with the WH 55-399. The unit incorporates multiple safety features, including a flame sensor, automatic shut-off valve, and over-temperature protection, ensuring peace of mind for users.

In summary, the Lochinvar WH 55-399 stands out with its combination of high efficiency, advanced technology, and durable construction. Whether for residential or commercial use, this water heater provides a dependable and cost-effective solution for all hot water needs. Its innovative design and performance characteristics make it a top choice for anyone seeking a premium water heating option.