Vent System Design | Crown Boiler BWC225, BWC150 guide

WARNING

Failure to vent this boiler in accordance with these instructions could cause flue gas to enter the building resulting in severe property damage, personal injury, or death:

•Use of the BWC boiler with CPVC/PVC venting requires a special vent kit available from Crown Boiler Company. Do not attempt to vent the boiler using either CPVC/PVC without the use of the appropriate vent kit called for in this manual.

•Do not apply thermal insulation to vent pipe or fittings.

•Do not interchange vent systems or materials unless otherwise specified.

•Do not obtain combustion air from within the building.

•Do not install a barometric damper, vent damper, or drafthood on this boiler.

•Unless otherwise noted, the use of CPVC is required where the vent pipe passes through enclosed spaces and through wall penetrations.

•Do not use cellular core PVC (ASTM F891).

•Pitch the vent piping as called for in these instructions to prevent condensate from pooling in the venting.

•Starting at the boiler, the first 30” of straight pipe, and the first 90 degree elbow, in the vent system must be CPVC. PVC may only be used in the vent system downstream of this CPVC piping.

CAUTION

Moisture and ice may form on the surfaces around the vent termination. To prevent deterioration, surfaces should be in good repair (sealed, painted, etc.).

A. Vent System Design

There are several different ways to vent BWC series boilers. This installation supplement covers installation of those vent systems that employ CPVC and PVC plastic pipe. Refer to the BWC installation manual when installing a vent system using stainless steel or concentric PPs venting.

When CPVC/PVC pipe is used, there are two basic ways to vent a BWC boiler, each having several variations:

•Horizontal (“Side Wall”) Twin Pipe Venting (Table 1.1) - Vent system exits the building through an outside wall. Combustion air and flue gas are routed between the boiler and the terminal using separate pipes.

•Vertical Twin Pipe Venting (Table 1.12) - Vent system exits the building through a roof. Combustion air and flue gas are routed between the boiler and the terminal using separate pipes.

All of these systems are considered “direct vent” because in all of them air for combustion is drawn directly from the outdoors into the boiler. A description of all of these venting options are shown in Tables 1.1 and 1.12. One of the vent option columns in Tables 1.1 or 1.12 must match the planned vent and air intake system exactly. In addition, observe the following guidelines:

1.CPVC/PVC Adaptor Kits - The use of CPVC/PVC venting on BWC boilers requires the use of a special kit. Each kit consists of the following principle components:

•Adaptor/s for the Vent and Intake Connections

•30” Section of Straight CPVC Pipe

•CPVC Elbow

•(2) PVC Termination Tees

•(2) Rodent Screens

•(1 ea.) Can PVC/CPVC Primer and Cement

Part Numbers for each kit are shown in Table 1.5

NOTE: Models BWC070, 090, 120 and 151 may be ordered from the factory with the above components packaged in the boiler. When this is done the vent adaptor may be shipped installed on the boiler.

BWC225, BWC150 specifications

The Crown Boiler BWC series, specifically the BWC150 and BWC225 models, are renowned for their performance and efficiency in residential and commercial heating applications. These boilers are designed to provide optimal heating while ensuring reliability and user-friendliness.

A standout feature of the BWC series is its high efficiency. Both the BWC150 and BWC225 are equipped with cutting-edge technology that maximizes energy use, effectively reducing operating costs. Their design utilizes a modulating burner, which adjusts the heat output based on demand. This modulation not only enhances comfort levels by maintaining a steady temperature but also conserves energy, making these models eco-friendly options.

The BWC series incorporates a durable cast-iron heat exchanger, known for its longevity and excellent heat transfer capabilities. This feature ensures that the boilers can withstand the rigors of daily operation while delivering consistent performance over time. Furthermore, the built-in control systems allow for precise monitoring and adjustment, ensuring that users have access to real-time information about their heating systems.

Another notable characteristic is the compact design of these boilers. The BWC150 and BWC225 fit seamlessly into various spaces, making them ideal for both new installations and replacements in existing systems. The straightforward installation process is a significant advantage for contractors and homeowners alike, saving time and resources.

Moreover, safety is a priority in the design of the BWC series. Each model includes multiple safety features, including low water cut-off, high-temperature limit control, and pressure relief valves. These features not only protect the boiler itself but also ensure the safety of the home or building in which it operates.

The Crown Boiler BWC series also boasts compatibility with various heating systems, including hot water baseboard, radiators, and in-floor heating, providing versatility to meet different heating needs. Its user-friendly interface and control options make it accessible to users, whether they are tech-savvy or not.

In conclusion, the Crown Boiler BWC150 and BWC225 models offer a combination of energy efficiency, robust construction, and advanced technology. With their modulating burners, durable heat exchangers, compact design, and safety features, these boilers are an excellent choice for anyone looking to invest in a reliable heating solution.