Installation & Operation Manual

4 Sidewall direct venting (continued)

Vent/air termination – sidewall

Figure 4-1CAlternate PVC/CPVC/SS/ Polypropylene Venting Arrangement (if Space Allows) w/Field Supplied Fittings

TO BOILER

INTAKE AIRCOUPLING

CONNECTION

12” MIN

15” MAX

FROM BOILER

VENT PIPE

CONNECTION

BIRD SCREEN

12”

MIN

BIRD

SCREEN

GRADE OR

SNOW LINE

ALTERNATE VENTING ARRANGEMENT

(IF SPACE PERMITS)

Figure 4-1DAlternate SS Venting Arrangement - Typical Stainless Steel Sidewall Termination of Air and Vent w/Field Supplied Fittings, Utilizing a Hood Intake

6.Locate terminations so they are not likely to be damaged by foreign objects, such as stones or balls, or subject to buildup of leaves or sediment.

Figure 4-2AClearance to Gravity Air Inlets

12"

MIN.

VENT / AIR

TERMINATION

12" MIN.

12" MIN.

BIRD SCREEN

TO BOILER

INTAKE AIR

CONNECTION

12" (305 MM) MIN 15" (381 MM) MAX

FROM BOILER

VENT PIPE

CONNECTION

12" (305 MM) MIN

GRADE OR

SNOW LINE

5.Maintain clearances as shown in FIG.’s 4-1A thru 4-3B, pages 22 - 24. Also maintain the following:

a.Vent must terminate:

At least 6 feet from adjacent walls.

No closer than 12 inches below roof overhang.

At least 7 feet above any public walkway.

At least 3 feet above any forced air intake within 10 feet.

No closer than 12 inches below or horizontally from any door or window or any other gravity air inlet.

b.Air inlet must terminate at least 12 inches above grade or snow line; at least 12 inches below the vent termination; and the vent pipe must not extend more than 24 inches vertically outside the building as shown in FIG. 4-1B. Condensate could freeze and block vent pipe.

c.Do not terminate closer than 4 feet horizontally from any electric meter, gas meter, regulator, relief valve, or other equipment. Never terminate above or below any of these within 4 feet horizontally.

Figure 4-2BAlternate Clearance to Gravity Air Inlets w/ Field Supplied Fittings

12”

MIN.

BIRD

SCREEN

(TYPICAL)

12” MIN.

12” MIN.

Figure 4-3AClearance to Forced Air Inlets

IF LESS

THAN 10’

VENT / AIR

36"

TERMINATION

MIN.

 

FORCED AIR

INLET

7' MIN. ABOVE ANY PUBLIC WALKWAY

23

Page 23
Image 23
Lochinvar WH 55-399 operation manual 2AClearance to Gravity Air Inlets

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.