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Crown Boiler BWC225 - page 1
BWC Series Direct V ent Condensing Boilers INST ALLA TION SUPPLEMENT FOR BOILERS VENTED WITH CPVC/PVC PIPE These instructions must be afxed on or adjacent to the boiler . Models: • BWC070 • BWC090 • BWC120 • BWC151 • BWC150 • BWC225 W ARNING : Improper installation, adjustment, alteration, service or maintenance can cause property da ...
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Crown Boiler BWC225 - page 2
1 ...
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Crown Boiler BWC225 - page 3
1 T able of Contents A. V ent System Design 2 B. Assembly of CPVC/PVC Concentric V enting 14 C. Condensate T rap and Drain 20 D. Removing An Existing Boiler From Common Chimney 22 E. Special Requirements For Side-W all V ented Appliances In The Commonwealth of Massachusetts 23 ...
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Crown Boiler BWC225 - page 4
2 3 W ARNING Failure to vent this boiler in accordance with these instructions could cause ue gas to enter the building resulting in sever e property damage, personal injury , or death: Use of the BWC boiler with CPVC/PVC venting r equires a special vent kit available from Cr own • Boiler Company . Do not attempt to vent the boiler using eithe ...
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Crown Boiler BWC225 - page 5
2 3 T ABLE 1.1: SUMMAR Y OF HORIZONT AL VENTING OPTIONS VENT OPTION # 1 2 3 4 CLASSIFICA TION USED IN THIS MANUAL HORIZONT AL TWIN PIPE HORIZONT AL TWIN PIPE HORIZONT AL TWIN PIPE HORIZONT AL TWIN PIPE ILLUSTRA TED IN FIGURE 1.2 1.3 1.4 1.4 VENT PIPE PENETRA TION THROUGH STRUCTURE W ALL W ALL W ALL W ALL AIR INT AKE PIPE PENETRA TION THROUGH STRUCT ...
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Crown Boiler BWC225 - page 6
4 5 Approved vent components and materials - The adaptor kits listed in T able 1.5 are required to connect the venting 2. to the boiler . Starting at the boiler, the rst 30 inches of the vent system, and the rst elbow , must be CPVC . In addition, use only pipe that meets the following standards: CPVC - ASTM F441 • PVC - ASTM D2665 • The ...
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Crown Boiler BWC225 - page 7
4 5 FIGURE 1.2: HORIZONT AL CPVC/PVC VENTING, BWC070/090/120/151 (V ent Option #1) FIGURE 1.3: HORIZONT AL CPVC/PVC VENTING, BWC070/090/120/151 (V ent Option #2) ...
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Crown Boiler BWC225 - page 8
6 7 Horizontal V ent and Air Intake T erminal Location 6. - Observe the following limitations on the vent terminal location (also see Figure 1.9). When locating a concentric terminal, observe the limitations outlined below for “vent terminals”. V ent terminal must be at least 1 foot from any door , window , or gravity inlet into the building. ? ...
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Crown Boiler BWC225 - page 9
6 7 T ABLE 1.5: CROWN CPVC/PVC VENTING COMPONENTS CROWN PN DESCRIPTION USED ON VENT OPTION # COMMENTS 230595 CPVC/PVC VENT KIT , BWC070/090/120/151 1,2,5,6 230596 CPVC/PVC VENT KIT , BWC150 3,7 230597 CPVC/PVC VENT KIT , BWC225 4,8 230873 PVC CONCENTRIC TERMINAL 2,6 Use with BWC070/090/120/151 Only Note: BWC070/090/120/151 may be ordered with compo ...
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Crown Boiler BWC225 - page 10
8 9 T ABLE 1.6: CROWN CPVC/PVC VENT KIT CONTENTS CROWN PN DESCRIPTION SIZE QTY PER VENT KIT PN 230595 (BWC070/090/120/151) PN 230596 (BWC150) PN 230597 (BWC225) 230840 CPVC/PVC VENT/INT AKE ADAPTOR 3” 1 0 0 230843 CPVC VENT ADAPT OR 3” 0 1 0 230844 CPVC VENT ADAPT OR 4” 0 0 1 230854 INT AKE ADAPTOR 4” 0 1 1 230841 VENT/INT AKE ADAPT OR GASK ...
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Crown Boiler BWC225 - page 11
8 9 FIGURE 1.9a: LOCA TION OF VENT TERMINAL RELA TIVE TO WINDOWS, DOORS, GRADE FIGURE 1.9b: LOCA TION OF VENT TERMINAL RELA TIVE TO METERS AND FORCED AIR INLETS FIGURE 1.9c: POSITIONING VENT TERMINAL UNDER OVERHANGS ...
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Crown Boiler BWC225 - page 12
10 11 FIGURE 1.10: SNORKEL TERMINAL CONFIGURA TION FIGURE 1.1 1: EXP ANSION LOOPS FIGURE 1.1 1.b FIGURE 1.1 1.a FIGURE 1.1 1.c ...
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Crown Boiler BWC225 - page 13
10 11 FIGURE 1.1 1: EXP ANSION LOOPS T ABLE 1.12: SUMMAR Y OF VER TICAL VENTING OPTIONS VENT OPTION # 5 6 7 8 CLASSIFICA TION USED IN THIS MANUAL VER TICAL TWIN PIPE VER TICAL TWIN PIPE VER TICAL TWIN PIPE VER TICAL TWIN PIPE ILLUSTRA TED IN FIGURE 1.14 1.15 1.16 1.16 VENT PIPE PENETRA TION THROUGH STRUCTURE ROOF ROOF ROOF ROOF AIR INT AKE PIPE PEN ...
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Crown Boiler BWC225 - page 14
12 13 FIGURE 1.14: VER TICAL CPVC/PVC VENTING, BWC070/090/120/151 (VENT OPTION 5) FIGURE 1.13: W ALL PENETRA TION CLEARANCES FOR PVC VENT PIPE ...
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Crown Boiler BWC225 - page 15
12 13 FIGURE 1.15: VER TICAL CPVC/PVC VENTING, BWC070/090/120/151 (VENT OPTION 6) FIGURE 1.16: VER TICAL CPVC/PVC VENTING, BWC150/225 (VENT OPTIONS 7 & 8) ...
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Crown Boiler BWC225 - page 16
14 15 B. Assembly of CPVC/PVC V ent Systems W ARNING Failure to follow the instructions could result in ue gas leakage into the combustion air or indoor air , resulting in unsafe or unreliable operation. All CPVC vent components (supplied with the boiler) must be used for near boiler vent piping before • transitioning to Schedule 40 PVC (ASTM ...
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Crown Boiler BWC225 - page 17
14 15 FIGURE 1.17: INST ALLA TION OF VENT/INT AKE ADAPTOR (BWC070/090/120/151) FIGURE 1.18: INST ALLA TION OF VENT AND INT AKE ADAPTORS (BWC150/225) ...
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Crown Boiler BWC225 - page 18
16 17 Assemble the vent system, starting at the boiler: 2. The CPVC elbow and the 30” straight section of CPVC provided with the kit must be used before a. transitioning to PVC. If necessary , the 30” straight section of CPVC may be cut at any location and the CPVC elbow inserted between the two resulting segments. When cutting CPVC or PVC pipe ...
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Crown Boiler BWC225 - page 19
16 17 Installation of Standard T erminals: 4. Horizontal (T ee T erminals): When using T ee terminals, the inside edge of the run of the T ee must be between 6 and 24” from the wall. a. The run of the T ee must be vertical. (Figure 1.19). b. If desired, the T ees can be attached to the end of the vent and/or intake pipes with eld supplied stai ...
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Crown Boiler BWC225 - page 20
18 19 Installation of Optional Crown # 5. 230873 concentric vent terminal - This terminal may be used for either horizontal or vertical venting. Do not attempt to use this terminal on a BWC150 or BWC225. All CPVC supplied with the vent kit must be used prior to connection of the vent system to this terminal. If the vent system is too short to permi ...
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Crown Boiler BWC225 - page 21
18 19 FIGURE 1.21: INST ALLA TION OF OPTIONAL CONCENTRIC TERMINAL THROUGH SIDEW ALL FIGURE 1.22: INST ALLA TION OF OPTIONAL CONCENTRIC TERMINAL THROUGH ROOF ...
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Crown Boiler BWC225 - page 22
20 21 C. Condensate T rap and Drain Line All condensate which forms in the boiler or vent system collects in the sump under the heat exchanger and leaves the boiler through the condensate trap. This trap allows condensate to drain from the sump while retaining ue gases in the boiler . On some BWC series boilers, this trap is supplied loose and m ...
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Crown Boiler BWC225 - page 23
20 21 FIGURE 1.23 : CONDENSA TE PIPING ARRANGEMENT (BWC070/090/120/151) FIGURE 1.24: CONDENSA TE PIPING ARRANGEMENT FOR BWC150, 225 ...
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Crown Boiler BWC225 - page 24
22 23 D. Removing an Existing Boiler Fr om 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 la ...
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Crown Boiler BWC225 - page 25
22 23 E: Special Requir ements For Side-W all V ented Appliances In The Commonwealth of Massachusetts IMPOR T ANT The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for installation of side-wall vented gas appliances as follows: 1. For direct-vent appliances, mechanical-vent heating appliances or domestic ho ...
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Crown Boiler BWC225 - page 26
PN: 980034 Rev . 2 10/10 Manufacturer of Hydronic Heating Products P .O. Box 14818 3633 I. Street Philadelphia, P A 19134 T el: (215) 535-8900 • Fax: (215) 535-9736 • www .crownboiler .com ...
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