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Table of Contents I. Product Description 2 II. Specifications 2 III. Before Installing 3 IV. Locating The Boiler 3 V. Mounting The Boiler 6 VI. Air For Ventilation 9 VII. Venting 11 A. Vent System Design 11 B. Removing An Existing Boiler From Common Chimney 21 C. Assembly of Crown 60/100mm Concentric Venting 22 D. Assembly of Crown 80/125mm Concentric Venting 26 E. Assembly of Stainless Steel Venting
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III Before Installing 1) Safe, reliable operation of this boiler depends upon installation by a professional heating contractor in strict accordance with this manual and the authority having jurisdiction. • In the absence of an authority having jurisdiction, installation must be in accordance with this manual and the National Fuel Gas Code, ANSI Z223.1. In Canada, installation must be in accordance with the B149.1 Installation Code • Where required by the authority having jurisdictio
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Table 4.2: Clearances From Vent Piping To Combustible Construction MINIMUM CLEARANCE TO COMBUSTIBLE TYPE OF VENT PIPE PIPE DIRECTION ENCLOSURE MATERIAL 80/125 and 60/100mm VERTICAL OR ENCLOSED ON ALL FOUR SIDES 0” CONCENTRIC VENTING HORIZONTAL HEAT FAB SAF-T VENT AT LEAST ONE SIDE OPEN, PROTECH FASNSEAL VERTICAL OR 1” COMBUSTIBLE MATERIAL ON A Z-FLEX Z-VENT III HORIZONTAL MAXIMUM OF THREE SIDES METAL-FAB CORR/GUARD HEAT FAB SAF-T VENT PROTECH FASNSEAL HORIZONTAL OR VERTICAL 2-1/2” ENCLOSE
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VI Air for Ventilation WARNING OUTDOOR COMBUSTION AIR MUST BE PIPED TO THE AIR INTAKE. NEVER PIPE COMBUSTION AIR FROM AREAS CONTAINING CONTAMINATES SUCH AS SWIMMING POOLS AND LAUNDRY ROOM EXHAUST VENTS. CONTAMINATED COMBUSTION AIR WILL DAMAGE THE BOILER AND MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. Air for combustion must always be obtained directly from outdoors, however sufficient air for ventilation must still be provided in the boiler room. Air for ventilation is
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VII Venting 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 only vent systems and materials explicitly permitted by Crown for use with this boiler. * Do not attempt to mix components from different approved vent systems. * Do not obtain combustion air from within the building. * Do not install a barometric damper or drafthood on this boiler. CAUTION Moist
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2) Maximum Vent and Air Intake Lengths - The maximum length of the vent air intake piping depends upon the vent option selected and the boiler size. See Table 7.1 or 7.9 for the maximum vent length. In horizontal vent systems, the lengths shown in Table 7.1 are in addition to the first standard elbow on top of the boiler. For vertical vent systems, the maximum vertical vent lengths shown in Table 7.9 are in addition to two standard radius elbows. If more elbows are desired, the maximum allo
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Horizontal Terminal Clearance Requirements (continued): • Vent terminal must be at least 6 feet from an inside corner. • Under certain conditions, water in the flue gas may condense, and possibly freeze, on objects around the vent terminal including on the structure itself. If these objects are subject to damage by flue gas condensate, they should be moved or protected. • If possible, install the vent and air intake terminals on a wall away from the prevailing wind. Reliable operation of this
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TABLE 7.4a: CROWN CONCENTRIC 60/100 VENT COMPONENTS (VENT OPTION 1) USED ON CROWN PN DESCRIPTION SIZE VENT COMMENTS OPTION # 80/125 x 60/100mm REDUCING 80/125 x INCLUDED WITH STANDARD 230521 1 ELBOW 60/100mm BWC070/090/120 INCLUDED WITH STANDARD 230520 TERMINAL SECTION 60/100mm 1 BWC070/090/120 INCLUDED WITH STANDARD 230522 WALL GROMMET 60/100mm 1 BWC070/090/120 230505 39” STRAIGHT 60/100mm 1 OPTIONAL - MAY NOT BE CUT 230504 78” STRAIGHT 60/100mm 1 OPTIONAL - MAY NOT BE CUT 230506 19 1/2” S
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6) Permitted Terminals for Vertical Venting - • Vent Option 5 - A straight termination is installed in the end of the vent pipe. Vent manufacturer part numbers for these screens are shown in Table 7.5. The air inlet terminal consists of a 180 degree elbow (or two 90 degree elbows) with a rodent screen as shown in Figure 7.10. • Vent Option 6 - Use Crown PN 230532 with the appropriate flashing (Table 7.4b) 7) Vertical Vent Terminal Locations (Vent Options 5,6) - Observe the following li
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9) Pitch of Horizontal Piping - Pitch all horizontal piping so that any condensate which forms in the piping will run towards the boiler: • Pitch Crown horizontal concentric venting 5/8” per foot • Pitch Stainless steel venting 1/4” per foot. 10) Supporting Pipe - Vertical and horizontal sections of pipe must be properly supported: • Support Crown concentric venting near the female end of each straight section of pipe. Exception: Vertical runs of concentric pipe in an unused chinmey
