Crown Boiler BSI241, BSI276, BSI345, BSI379 Removing an Existing Boiler from a Common Chimney

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14)Vent damper installation is mandatory on all sizes from the BSI069 to BSI276. The BSI310 through BSI379 may be ordered with or without vent damper. If supplied, install vent damper (see Figure 9) as follows:

a)Open vent damper carton and remove installation instructions. Read the instructions thoroughly before proceeding. Verify that vent damper is same size as draft diverter outlet. See Figure 1. Unpack vent damper carefully. Do not force closed damper blade. Forcing vent damper closed may result in damaged gear train and void warranty.

b)Vent damper is factory shipped having approximately ¾” diameter hole in the vent damper blade, which must be left open for boilers equipped with standing pilot, and should be plugged on boilers with an intermittent pilot system, using the plug supplied with the damper.

Mount the vent damper on the flue collar without modification to either and secure with sheet metal screws. Make sure screws do not interfere with damper blade operation. Vent damper blade position indicator must be visible to users.

c)The damper wire harness is shipped wired into the boiler junction box. Plug the loose end of this harness into the damper and secure the flexible conduit to the damper using a connector nut provided.

d)Install vent connector pipe and vent fittings from vent damper outlet to chimney or gas vent. Secure with sheet metal screws and support as required.

Removing an Existing Boiler from a Common Chimney

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 opening 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 five (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 resizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in the National Fuel Gas Code, ANSI Z223.1.

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Contents BSI Series Table of Contents Product DescriptionII Specifications BSI SpecificationsIII Before Installing IV Locating the BoilerAir for Combustion and Ventilation For Buildings of Other than Unusually Tight Construction ForBuildingsofUnusuallyTightConstructionBOILERINSTALLEDINCONFINEDSPACE, ALL AIR from Inside ALL AIR from OUTDOORS, Using Openings Into Boiler Room VI Venting Removing an Existing Boiler from a Common Chimney BSI Boilertypicalventsystem Installation and Components VII Gas Piping GasconnectiontoboilerViii System Piping General Piping NotesPipingInstallation Common NEAR-BOILER Piping Mistakes IX Indirect Water Heater Piping Indirectwater Heater BOILER-SIDE PipingWiring Indirect Water Heater Wiring Wiring Indirectwater Heater to Boiler BSI Control System Sequence of Operation Sequence of Operation, Standing PilotVent Damper Note Less Vent GAS Valve BSI379 Honeywell VR8204/VR8304 Series GAS Valves BSI069 Robertshaw XI Start-up and Checkout 2423Standing Pilot Burner Flame For Your Safety Read Before Operating For Your Safety Read Before Lighting For Your Safety Read Before Lighting Position Indicator High Altitude Burners GASVALVEDETAIL-HONEYWELLVR8200ORVR8300STANDINGPILOT On at least a weekly basis XII Service and MaintenanceOn a continuous basis On an annual basisPage Heat Exchanger Cleaning Procedure Xiii Troubleshooting Start END Start END Standing Pilot Ignition System Troubleshooting Chart Intermittent Ignition System Troubleshooting Chart XIV Parts Page KEY # Page Boilers only Page Appendix a Knockdown Boiler Assembly Instructions Before InstallingFIGUREA1 BASE, Heat EXCHANGER, Flue Collector Assembly Gas Valve Installation Figure A2 Jacket Installation Electrical Wiring Connections Complete InstallationFigure A3 Tapping Locations see Text for Tapping Uses Crown

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.
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