Use insulated vent pipe spacers where the vent pass- es through combustible roofs and walls.

Vent Terminal Location

1.Condensate can freeze on the vent cap. Frozen condensate on the vent cap can result in a blocked flue condition.

2.Give special attention to the location of the vent termination to avoid possibility of property dam- age or personal injury.

3.Gases may form a white vapor plume in winter. The plume could obstruct a window view if the ter- mination is installed near windows.

4.Prevailing winds, in combination with below-freez- ing temperatures, can cause freezing of condensate and water/ice build-up on buildings, plants or roofs.

5.The bottom of the vent terminal and the air intake shall be located at least 12 in. above grade, includ- ing normal snow line.

6.Un-insulated single-wall metal vent pipe shall not be used outdoors in cold climates for venting gas- fired equipment.

7.Through-the-wall vents for Category II and IV appliances and non-categorized condensing appli- ances shall not terminate over public walkways or over an area where condensate or vapor could create a nuisance or hazard or could be detrimen- tal to the operation of regulators, relief valves, or other equipment. Where local experience indi- cates that condensate is a problem with Category I and III appliances, this provision shall also apply.

8.Locate and guard vent termination to prevent acci- dental contact by people or pets.

9.DO NOT terminate vent in window well, stairwell, alcove, courtyard or other recessed area.

10.DO NOT terminate above any door, window, or gravity air intake. Condensate can freeze, causing ice formations.

11.Locate or guard vent to prevent condensate from damaging exterior finishes. Use a rust-resistant sheet metal backing plate against brick or mason- ry surfaces.

12.DO NOT extend exposed vent pipe outside of building. Condensate could freeze and block vent pipe.

U.S. Installations

Refer to the latest edition of the National Fuel Gas Code.

Vent termination requirements are as follows:

1.Vent must terminate at least 4 ft below, 4 ft hori- zontally from or 1 ft above any door, window or gravity air inlet to the building.

2.The vent must not be less than 7 ft above grade when located adjacent to public walkways.

3.Terminate vent at least 3 ft above any forced air inlet located within 10 ft.

4.Vent must terminate at least 4 ft horizontally, and in no case above or below unless 4 ft horizontal distance is maintained, from electric meters, gas meters, regulators, and relief equipment.

Combustion

Air Supply

Exhaust

Configuration

Heater Venting

Category

Certified Materials

Combustion Air

Inlet Material

 

Vertical Natural

I

“B” Vent

 

 

From Inside Building

Draft Venting

 

 

 

 

 

 

 

Horizontal Through-

III

Stainless Steel

 

 

 

the-Wall Venting

(Gas Tight)

 

 

 

 

 

 

 

Vertical Natural

I

“B” Vent

Galvanized Steel

From Outside Building

Draft Venting

 

PVC

 

 

 

 

Horizontal Through-

III

Stainless Steel

 

ABS

 

 

CPVC

 

the-Wall Venting

(Gas Tight)

 

 

 

 

 

 

 

 

 

 

 

Table K: Venting Category Requirements

26

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Raypak 399B-2339B operating instructions Vent Terminal Location, Installations
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399B-2339B specifications

The Raypak 399B-2339B is a notable pool heater that stands out in the competitive market of heating solutions, particularly aimed at residential and commercial swimming pools and spas. Designed for efficiency and reliability, the Raypak 399B-2339B integrates advanced technology to deliver a comfortable swimming experience, safeguarding users against fluctuating outdoor temperatures.

One of the primary features of the Raypak 399B-2339B is its robust design, built to withstand the rigors of outdoor environments. With a durable cabinet made from corrosion-resistant materials, it ensures longevity and resistance to various weather conditions. This heater boasts a compact footprint, making it an ideal choice for properties with limited installation space.

A standout characteristic of this model is its energy efficiency. The Raypak 399B-2339B utilizes a high-efficiency gas burner, allowing it to heat water quickly while consuming less fuel. This efficiency not only reduces operational costs but also aligns with environmentally conscious practices, making it an appealing choice for eco-friendly users.

Equipped with innovative technologies, this heater offers both digital controls and diagnostic capabilities. The user-friendly digital display allows for precise temperature control and easy monitoring of the heater's performance. Additionally, the built-in diagnostics feature alerts users to any operational issues, ensuring timely maintenance and minimizing downtime.

The Raypak 399B-2339B is compatible with both natural gas and propane, providing versatility in energy sources. This adaptability can be particularly beneficial for those seeking to switch fuel types or utilize available resources. Moreover, its low NOx emissions make it compliant with stringent environmental regulations, contributing to cleaner air and a healthier ecosystem.

In terms of heating capacity, the Raypak 399B-2339B boasts a powerful output, efficiently heating large bodies of water. This performance makes it suitable for various applications, from residential pools to commercial aquatic centers, ensuring that swimming enjoyment is never compromised due to cold water.

The unit also features a built-in water hydraulics system that optimizes water circulation, preventing overheating and prolonging the lifespan of the heater. Furthermore, the Raypak engineering team has ensured that the installation process is straightforward, with clear guidelines and necessary plumbing fittings provided.

In summary, the Raypak 399B-2339B is a top-tier pool heater that offers durability, energy efficiency, advanced technology, and versatile fuel compatibility. Its high performance and user-friendly features make it a reliable investment for anyone looking to enhance their swimming experience.
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