Wiring | Crown Boiler BSI069, BSI241, BSI276, BSI345, BSI379, BSI103

X Wiring

WARNING

All wiring and grounding must be done in accordance with the authority having jurisdiction or, in the absence of such requirements, with the National Electrical Code (ANSI/NFPA 70)

1)120 Volt Wiring - The boiler should be provided with its own 15A branch circuit with fused disconnect. All 120 volt connections are made inside the junction box on the left side of the boiler. Remove the transformer to gain access to this box (also see Figures 16 through 19):

•Hot (“black”) - Wire nut to black transformer lead

•Neutral (“white”) - Wire nut to white transformer lead

•Ground (“green” or bare) - Ground screw inside junction box.

2)Thermostat Wiring - Follow thermostat manufacturer instructions. To insure proper thermostat operation, avoid installation in areas of poor air circulation, hot spots (near any heat source or in direct sunlight), cold spots (outside walls, walls adjacent to unheated areas, locations subject to drafts). Provide Class II circuit between thermostat and boiler. Connect thermostat wire leads to the blue transformer lead and brown relay lead inside the junction box. Set the heat anticipator to 0.2A.

Feeder Wiring for Boilers Equipped with Hydrolevel CG400A Low Water Cut-offs

CAUTION

Do not attempt to connect a McDonnell & Miller model #101A feeder, or other feeder without a delay, to a BSI boiler equipped with a Hydrolevel CG400 low water cutoff. Doing so could destroy the boiler transformer and/or flood the system.

1)Using Hydrolevel VXT-24 TWO-WIREfeeder - Do not alter factory boiler wiring. Connect VXT-24 to CG400A as follows:

•Connect the BLACK lead on the feeder to terminal A on the LWCO

•Connect the WHITE lead on the feeder to terminal 2 on the LWCO

2)Using Hydrolevel VXT-24 THREE-WIREfeeder - Do not alter factory boiler wiring. Connect VXT-24 to CG400Aas follows:

•Connect the BLACK lead on the feeder to terminal 1 on the LWCO

•Connect the WHITE lead on the feeder to terminal 2 on the LWCO

•Connect the RED lead on the feeder to terminal A on the LWCO

3)Using McDonnell & Miller WF2-U-24 feeder - Do not alter factory boiler wiring. Connect WF2-U-24 to CG400A as follows:

•Connect terminal W on the feeder to terminal A on the LWCO

•Connect terminal N on the feeder to terminal 2 on the LWCO

•Connect terminal H on the feeder to terminal 1 on the LWCO

BSI069, BSI345, BSI207, BSI172, BSI241 specifications

Crown Boiler Company is renowned for its high-quality heating solutions, with a diverse range of models designed to meet various residential and commercial needs. Among their popular offerings are the BSI series, which includes the BSI379, BSI138, BSI310, BSI276, and BSI103 models. Each of these boilers comes with distinct features, technologies, and characteristics that cater to different applications and preferences.

The Crown Boiler BSI379 is a powerful and efficient boiler designed for residential use. It features a stainless steel heat exchanger that enhances durability and improves heat transfer efficiency. The BSI379 operates on natural gas, providing a high thermal efficiency rating which helps to reduce energy costs. With a compact design, it can fit conveniently in various installations, making it a versatile choice for homeowners.

The BSI138 model is another excellent option for smaller residential spaces. It is equipped with advanced technology that allows for quiet operation and minimal environmental impact. This boiler also offers a straightforward control interface, making it easy for homeowners to adjust settings according to their heating needs. The BSI138's lightweight construction and small footprint allow for flexible installation options.

Moving on to the BSI310, this model is designed for medium to larger-sized homes. It features an electronic ignition system that ensures reliable start-up while minimizing gas consumption. The BSI310 also incorporates multiple safety features, including pressure relief valves and limit controls, enhancing user safety during operation. Its robust design ensures efficient heating even in the coldest months.

The BSI276 model is characterized by its sealed combustion design, which improves indoor air quality by preventing drafts and ensuring that all combustion air is drawn from outside. This model is ideal for energy-conscious homeowners seeking environmentally friendly options. Its high-efficiency rating translates to significant energy savings over time, making it a financially wise investment.

Finally, the BSI103 is an entry-level model that retains the quality and reliability associated with Crown Boilers. It is particularly suited for smaller homes or apartments and offers ease of use and maintenance. The BSI103 combines affordability with efficiency, providing a cost-effective heating solution without compromising on performance.

In summary, the Crown Boiler BSI series, comprising the BSI379, BSI138, BSI310, BSI276, and BSI103, showcases a blend of innovative technologies and features. With options suitable for various household sizes and energy needs, Crown Boiler continues to deliver reliable heating solutions that cater to modern homeowners’ demands for efficiency, safety, and convenience. Each model's unique characteristics ensure that users can find the perfect boiler to meet their heating requirements.