Installation & Operation Manual

6 Hydronic piping (continued)

Figure 6-8Single Boiler - Multiple Temperature - DHW Priority

 

 

 

 

 

 

 

 

 

 

PRESSURE

TEMPERATURE

TEMPERATURE

TEMPERATURE

 

 

 

 

 

 

 

 

 

 

BACKFLOW

 

 

 

REDUCING VALVE

 

LOOP #1

 

LOOP #2

 

LOOP #3

 

 

 

 

PREVENTER

 

 

 

 

PRESSURE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAUGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAKE

 

 

UP

SYSTEM

MIXING VALVES

WATER

(TYPICAL)

 

SUPPLY

 

SENSOR

 

AIR SEPARATOR

 

EXPANSION

 

 

 

 

 

TANK

 

 

 

 

 

MAY SUBSTITUTE

 

 

 

WIRES TO

 

LOW LOSS HEADER

 

 

 

LOOP SENSORS

 

NOT TO EXCEED 4 PIPE DIA

120VAC TO PUMPS

 

MULTI-TEMP

BALL VALVE

OR MAX. OF 12" APART

 

24V SIGNAL TO

 

 

 

LOOP CONTROL

(TYPICAL)

Y-STRAINER

 

 

 

MIXING VALVES

 

 

 

(RECOMMENDED)

SHIELDED CABLE TO

 

 

 

 

 

 

DRAIN POINT

BOILER

 

BOILER CONTROL

 

 

(TYPICAL)

CIRCULATOR

DOMESTIC

 

 

 

 

 

 

 

FLOW CHECK

HOT WATER

HOT WATER

 

 

CIRCULATOR

ANTI-SCALD

 

VALVE

 

 

OUT

 

 

 

 

 

MIXING VALVE

 

 

 

 

 

COLD

 

 

 

 

 

WATER

 

 

 

 

 

IN

 

PRESSURE

 

 

 

 

 

RELIEF

 

 

 

 

 

VALVE

 

 

 

 

 

 

BOILER

 

 

 

UNION

DRAIN

 

 

 

(TYPICAL)

 

 

 

 

 

 

 

 

TEMPERATURE /

 

 

 

 

 

PRESSURE

 

 

IMG00190

 

GAUGE

 

 

 

 

CAUTION

NOTICE

Mixing valves are required for the protection of low temperature loops.

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.

43

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Image 43
Lochinvar WH 55-399 operation manual 8Single Boiler Multiple Temperature DHW Priority

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.