Crown Boiler BWC070, BWC120, BWC090 installation manual 35a Dimension H

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d)Complete the vent system inside the structure. The support elbow sits on the M10 x 35 screw as shown in Figure 7.34. Cut the Wall Penetration Section to the length required to connect the interior vent system to the Support Elbow following the instructions on Page 26.

e)Remove the Support Elbow from the Lower Support Bracket and attach it to the Wall Penetration Section. Slip this assembly through the Lower Support Bracket. Connect to the interior vent system.

f)Slide an Outer Joint Gasket over the male end of the Air Intake Section with the tapered edge of the gasket pointing up. Attach the Air Intake Section to the Support Elbow. If necessary, the Air Intake Section can be shortened by cutting the male end as described on page 26. After attaching the Air Intake Section to the Support Elbow, slide the Outer Joint Gasket down over the joint between the two fittings to prevent rain infiltration.

g)Attach the Wall bracket to the wall 0”-6” from the bottom edge of the intake bell (Figure 7.34). Use 1/4” screws (not provided) to mount this bracket.

h)Slide the remaining Outer Joint Gasket over the male end of the Terminal Elbow. Attach the Terminal Elbow to the Air Intake Section, pointing it away from the wall. Secure the Terminal Elbow to the Air Intake section with a single #10 x 1/2” sheet metal screw (Figure 7.34). Drill a 1/8 hole through both outer pipes to start this screw. Use a drill stop or other means to ensure that the drill bit does not penetrate more than 3/8” into the outer pipe. Do not use a sheet metal screw longer than 1/2”. Slide the Outer Joint Gasket down over the joint between the Terminal Elbow and the Air Intake Section to prevent rain infiltration.

i)Attach the Exhaust Terminal to the Terminal Elbow (Figure 7.34).

6)Vertical Terminal Installation - In addition to the vertical terminal, either a Flat Roof Flashing (PN 230533) or Sloped Roof Flashing (PN 230535) is required for this installation.

a)Determine the center line of the terminal location on the roof. If the roof is flat, cut a 5-1/2” diameter hole for the terminal. If the roof is sloped, cut a hole large enough for the terminal to pass through the roof while remaining plumb. Caution: If the boiler is installed directly under the hole, cover it while cutting the hole to prevent saw dust and other debris from falling into the boiler.

b)Install the roof flashing using standard practice for the roofing system on the structure.

c)If not already done, assemble the venting system inside the building. The last section of pipe needs to be on the same center line as the terminal and within 19-1/4” of the top edge of the roof flashing (Figure 7.35a).

d)Measure distance “H” from the top edge of the storm collar to the end of the last fitting as shown in Figure 7.35a.

e)Add 1” to distance “H”. Carefully mark this length on the pipe as shown in Figure 7.35b.

f)Cut the outer pipe only at the point marked in Step (e) using aviation shears, a hacksaw, or an abrasive wheel cutter. Be careful to cut the pipe square. De-burr the cut end with a file or emery cloth.

g)Place a mark on the aluminum inner pipe 3/8” beyond the end of the outer pipe (Figure 7.35b). Use a fine tooth hacksaw to cut the aluminum pipe and be careful to cut the pipe square. De-burr the cut edge of the aluminum pipe with a file or emery cloth.

h)Make a mark on the terminal section 1” from the cut end of the outer pipe as shown in Figure 7.35b.

i)Slip the terminal section through the roof from the outside. Push into the last section of vent pipe until the mark made in Step (h) is not longer visible. Secure the terminal to the last piece of pipe with three #10 x 1/2” sheet metal screws. Drill a 1/8” hole through both outer pipes to start these screws. Use a drill stop or other means to ensure that the drill bit does not penetrate more than 3/8” into the outer pipe. Do not use a sheet metal screw longer than 1/2”.

j)Secure the terminal section to the inside of the roof structure using the mounting bracket provided with the terminal (Figure 7.35c).

FIGURE 7.35a: DIMENSION “H”

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Contents Page VII Venting Page Summary of Horizontal Venting Options Horizontal Concentric Venting Vent Option 1,3 Vent Option Manufacturer Vent Size Component Part Number 6c Positioning Vent Terminal Under Overhangs Snorkel Terminal Configuration VENT/ AIR Intake Fitting Equivalent Length 10 Vertical Twin Pipe Vent System Vent Option Removing an Existing Boiler From a Common Chimney Page 21 Dimension L 22 Cutting Outer Pipe 25 Attaching 60/100mm Terminal Section 30a Cuttable Straight Section 31 Cutting Straight Pipe 32a Joining Cuttable Pipe 33a Dimension L, 80/125mm Horizontal Terminal 33c Cutting Inner Pipe of 80/125mm Horizontal Terminal 34 Installation of Snorkel Terminal 35a Dimension H 35b Cutting Vertical Terminal 36 Chimney Chase Installation Assembly of Stainless Steel Venting 47 CORR/GUARD Connection to Vent Collar

BWC120, BWC070, BWC090 specifications

Crown Boiler Company has established itself as a leader in the heating industry, providing reliable and efficient solutions for residential and commercial applications. Among their innovative product line, the BWC series, which includes the BWC120, BWC070, and BWC090 models, showcases advanced technology and design features that cater to the diverse needs of consumers.

The BWC series is designed to deliver exceptional heating performance while being user-friendly and efficient. One of the main features of these models is their compact design, making them suitable for installations in tight spaces, such as basements and utility rooms. This space-saving advantage does not compromise their power or heating capacity, as each model is engineered to handle a variety of heating demands.

A prominent technology in the BWC series is the high-efficiency, modulating condensing design. This allows the boilers to adjust their output based on the heating requirements of the space, leading to significant energy savings. By utilizing a variable-speed blower and an integrated control system, these boilers can operate at lower heating outputs when the demand is lower, ultimately improving overall efficiency and reducing fuel costs.

The BWC120, with an output of 120 MBH, is ideal for larger homes or light commercial applications, providing robust heating capabilities. The BWC090 offers a slightly lower output at 90 MBH, catering to moderately sized homes. Meanwhile, the BWC070 targets smaller residential settings with an output of 70 MBH, ensuring that there is a fitting option for a variety of heating needs.

In addition to their efficiency and compact design, the BWC models are equipped with advanced safety features, including built-in temperature and pressure relief valves. These safety measures give homeowners peace of mind, knowing that their heating system is operating safely and reliably.

Durability is another characteristic that defines the BWC series. Constructed with high-quality materials and designed to withstand the rigors of everyday use, these boilers are built to last. The easy-to-service construction ensures that routine maintenance is straightforward, thereby enhancing longevity and reliability.

In summary, the Crown Boiler BWC120, BWC070, and BWC090 models combine efficiency, advanced technology, and safety features, making them an excellent choice for anyone in the market for dependable heating solutions. Their adaptability to various heating needs, along with their space-saving designs, makes them suitable for a wide range of applications, ensuring comfort and reliability for years to come.
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