Crown Boiler BWC225, BWC150 manual Removing an Existing Boiler From a Common Chimney

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D. Removing an Existing Boiler From a Common Chimney

Read this only if the BWC boiler is replacing an existing boiler that is being removed from a common chimney. This section does not apply to the installation of a BWC boiler.

In some cases, when an existing boiler is removed from a common chimney, the common venting system may be too large for the remaining appliances. At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

(a)Seal any unused openings in the common venting system.

(b)Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

(c)Insofar as practical, close all building doors and windows and all doors between the space in which all the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan.

Close fireplace dampers.

(d)Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so the appliance will operate continuously.

(e)Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar, or pipe.

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

(g)Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code, ANSI Z223.1. 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 Part 11 of the National Fuel Gas Code, ANSI Z223.1.

WARNING

NEVER COMMON VENT A BWC BOILER WITH OTHER APPLIANCES.

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Contents BWC Series Page Page Vent System Design Summary of Horizontal Venting Options Page Page Page Crown CPVC/PVC Venting Components Crown CPVC/PVC Vent KIT Contents 9c Positioning Vent Terminal Under Overhangs 10 Snorkel Terminal Configuration 12 Summary of Vertical Venting Options 13 Wall Penetration Clearances for PVC Vent Pipe 15 Vertical CPVC/PVC VENTING, BWC070/090/120/151 Vent Option Assembly of CPVC/PVC Vent Systems 17 Installation of VENT/INTAKE Adaptor BWC070/090/120/151 19 Installation of Standard Horizontal Terminals 20 Installation of Standard Vertical Terminals Page 22 Installation of Optional Concentric Terminal Through Roof Condensate Trap and Drain Line 23 Condensate Piping Arrangement BWC070/090/120/151 Removing an Existing Boiler From a Common Chimney Page PN 980034 Rev 10/10

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.
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