speed. Do not operate summer exhaust fan. Close fireplace dampers.

4.Place in operation the appliances being inspected. Follow the manufacturer’s instructions for lighting each appliance. Adjust thermostat so appliance will operate continuously.

5.Check the pressure at a pressure tap located 12 in. above the bottom joint of the first vertical vent pipe. Pressure should be anywhere between -0.01 and -0.08 in. WC.

6.After it has been determined that each appliance remaining connected to the common venting sys- tem properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and other gas burning appliances to their previous conditions of use.

7.Any improper operation of the common venting system should be corrected so that the installation conforms with the NFGC (U.S.) or B149 (Canada). When re-sizing any portion of the common venting system, the common venting system should be re- sized to approach the minimum size as determined using the appropriate tables in the NFGC (U.S.) or B149 (Canada).

Horizontal Through-the-Wall Venting (Category III)

Installation

These installations utilize the heater-mounted blower to vent the combustion products to the outdoors. Combustion air is taken from inside the room and the vent is installed horizontally through the wall to the out- doors. Adequate combustion and ventilation air must be supplied to the equipment room in accordance with the NFGC (U.S.) or B149 (Canada).

The total length of the horizontal through-the-wall flue system should not exceed 70 equivalent ft in length. If horizontal run exceeds 70 equivalent ft, an appropri- ately sized extractor must be used. Each elbow used is equal to 10 ft of straight pipe. This will allow installa- tion in one of the four following arrangements:

•70’ of straight flue pipe

•60’ of straight flue pipe and one elbow

•50’ of straight flue pipe and two elbows

•40’ of straight pipe and three elbows

The vent cap is not considered in the overall length of the venting system.

*

*Requires optional vent tee.

Fig. 26: Horizontal Through-the-Wall Venting (Category III)

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Raypak 399B-2339B operating instructions Horizontal Through-the-Wall Venting Category
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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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