Crown Boiler BWC070 BWC090 Installation Supplement Manual
Bwc series direct vent condensing boilers
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Also See for BWC070 BWC090:
- Installation instructions manual (92 pages) ,
- Installation manual supplement (27 pages) ,
- Service supplement manual (17 pages)
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D
BWC Series
Direct Vent Condensing Boilers
InStallatIon SUPPlEMEnt FoR BoIlERS
VEntED WItH CPVC/PVC PIPE
These instructions must be affixed on or adjacent to the boiler.
Models:
BWC070
•
BWC090
•
BWC120
•
BWC151
•
BWC150
•
BWC225
•
Tel: (215) 535-8900 • Fax: (215) 535-9736 • www.crownboiler.com
E S I G N E D
Manufacturer of Hydronic Heating Products
P.O. Box 14818 3633 I. Street
Philadelphia, PA 19134
L
T O
E A D
WaRnIng: Improper installation, adjustment, alteration,
service or maintenance can cause property damage, injury,
or loss of life. For assistance or additional information, con-
sult a qualified installer, service agency or the gas supplier.
This boiler requires a special venting system. Read these
instructions carefully before installing.
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Summary of Contents for Crown Boiler BWC070 BWC090
- Page 1 E S I G N E D E A D BWC Series Direct Vent Condensing Boilers InStallatIon SUPPlEMEnt FoR BoIlERS VEntED WItH CPVC/PVC PIPE These instructions must be affixed on or adjacent to the boiler. Models: WaRnIng: Improper installation, adjustment, alteration, BWC070 •...
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Page 3: Table Of Contents
Table of Contents A. Vent System Design B. Assembly of CPVC/PVC Concentric Venting C. Condensate Trap and Drain D. Removing An Existing Boiler From Common Chimney E. Special Requirements For Side-Wall Vented Appliances In The Commonwealth of Massachusetts... -
Page 4: Vent System Design
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 of the BWC boiler with CPVC/PVC venting requires a special vent kit available from Crown Boiler Company. - Page 5 TABLE 1.1: SUMMARY OF HORIZONTAL VENTING OPTIONS VENT OPTION # CLASSIFICATION USED IN THIS HORIZONTAL HORIZONTAL HORIZONTAL HORIZONTAL MANUAL TWIN PIPE TWIN PIPE TWIN PIPE TWIN PIPE ILLUSTRATED IN FIGURE VENT PIPE PENETRATION WALL WALL WALL WALL THROUGH STRUCTURE AIR INTAKE PIPE PENETRATION WALL WALL WALL...
- Page 6 Approved vent components and materials - The adaptor kits listed in Table 1.5 are required to connect the venting to the boiler. Starting at the boiler, the first 30 inches of the vent system, and the first elbow, must be CPVC. In addition, use only pipe that meets the following standards: •...
- Page 7 FIGURE 1.2: HORIZONTAL CPVC/PVC VENTING, BWC070/090/120/151 (Vent Option #1) FIGURE 1.3: HORIZONTAL CPVC/PVC VENTING, BWC070/090/120/151 (Vent Option #2)
- Page 8 Horizontal Vent and Air Intake Terminal Location - 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”. • Vent terminal must be at least 1 foot from any door, window, or gravity inlet into the building. •...
- Page 9 FIGURE 1.4: HORIZONTAL CPVC/PVC VENTING, BWC150/225 (Vent Option #3, 4) TABLE 1.5: CROWN CPVC/PVC VENTING COMPONENTS USED ON CROWN PN DESCRIPTION VENT COMMENTS OPTION # 230595 CPVC/PVC VENT KIT, BWC070/090/120/151 1,2,5,6 230596 CPVC/PVC VENT KIT, BWC150 230597 CPVC/PVC VENT KIT, BWC225 230873 PVC CONCENTRIC TERMINAL Use with BWC070/090/120/151 Only...
- Page 10 TABLE 1.6: CROWN CPVC/PVC VENT KIT CONTENTS QTY PER VENT KIT CROWN PN DESCRIPTION SIZE PN 230595 PN 230596 PN 230597 (BWC070/090/120/151) (BWC150) (BWC225) 230840 CPVC/PVC VENT/INTAKE ADAPTOR 3” 230843 CPVC VENT ADAPTOR 3” 230844 CPVC VENT ADAPTOR 4” 230854 INTAKE ADAPTOR 4”...
- Page 11 FIGURE 1.9a: LOCATION OF VENT TERMINAL RELATIVE TO WINDOWS, DOORS, GRADE FIGURE 1.9b: LOCATION OF VENT TERMINAL RELATIVE TO METERS AND FORCED AIR INLETS FIGURE 1.9c: POSITIONING VENT TERMINAL UNDER OVERHANGS...
- Page 12 FIGURE 1.10: SNORKEL TERMINAL CONFIGURATION FIGURE 1.11.a FIGURE 1.11.b FIGURE 1.11.c FIGURE 1.11: EXPANSION LOOPS...
- Page 13 TABLE 1.12: SUMMARY OF VERTICAL VENTING OPTIONS VENT OPTION # CLASSIFICATION USED IN THIS VERTICAL VERTICAL VERTICAL VERTICAL MANUAL TWIN PIPE TWIN PIPE TWIN PIPE TWIN PIPE ILLUSTRATED IN FIGURE 1.14 1.15 1.16 1.16 VENT PIPE PENETRATION ROOF ROOF ROOF ROOF THROUGH STRUCTURE AIR INTAKE PIPE PENETRATION...
- Page 14 FIGURE 1.13: WALL PENETRATION CLEARANCES FOR PVC VENT PIPE FIGURE 1.14: VERTICAL CPVC/PVC VENTING, BWC070/090/120/151 (VENT OPTION 5)
- Page 15 FIGURE 1.15: VERTICAL CPVC/PVC VENTING, BWC070/090/120/151 (VENT OPTION 6) FIGURE 1.16: VERTICAL CPVC/PVC VENTING, BWC150/225 (VENT OPTIONS 7 & 8)
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Page 16: Assembly Of Cpvc/Pvc Concentric Venting
B. Assembly of CPVC/PVC Vent Systems WARNING Failure to follow the instructions could result in flue 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 2665) components for the remainder of the system. - Page 17 FIGURE 1.17: INSTALLATION OF VENT/INTAKE ADAPTOR (BWC070/090/120/151) FIGURE 1.18: INSTALLATION OF VENT AND INTAKE ADAPTORS (BWC150/225)
- Page 18 FIGURE 1.19: INSTALLATION OF STANDARD HORIZONTAL TERMINALS Assemble the vent system, starting at the boiler: The CPVC elbow and the 30” straight section of CPVC provided with the kit must be used before 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.
- Page 19 FIGURE 1.20: INSTALLATION OF STANDARD VERTICAL TERMINALS Installation of Standard Terminals: Horizontal (Tee Terminals): When using Tee terminals, the inside edge of the run of the Tee must be between 6 and 24” from the wall. The run of the Tee must be vertical. (Figure 1.19). If desired, the Tees can be attached to the end of the vent and/or intake pipes with field supplied stainless steel screws so that they can be later removed for cleaning and inspection.
- Page 20 Installation of Optional Crown # 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 permit this, do not use this terminal: Horizontal Installations- Cement the 4”...
- Page 21 FIGURE 1.21: INSTALLATION OF OPTIONAL CONCENTRIC TERMINAL THROUGH SIDEWALL FIGURE 1.22: INSTALLATION OF OPTIONAL CONCENTRIC TERMINAL THROUGH ROOF...
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Page 22: Condensate Trap And Drain
C. Condensate Trap 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 flue gases in the boiler. - Page 23 FIGURE 1.23: CONDENSATE PIPING ARRANGEMENT (BWC070/090/120/151) FIGURE 1.24: CONDENSATE PIPING ARRANGEMENT FOR BWC150, 225...
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Page 24: Removing An Existing Boiler From Common Chimney
D. Removing an Existing Boiler From 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 large for the remaining appliances. -
Page 25: In The Commonwealth Of Massachusetts
E: Special Requirements For Side-Wall Vented Appliances In The Commonwealth of Massachusetts IMPORTANT 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 hot water equipment, where the bottom of the vent terminal and the air intake is installed below four feet above grade the following requirements must be satisfied: If there is not already one present, on each floor level where there are bedroom(s), a carbon... - Page 26 Manufacturer of Hydronic Heating Products P.O. Box 14818 3633 I. Street Philadelphia, PA 19134 Tel: (215) 535-8900 • Fax: (215) 535-9736 • www.crownboiler.com PN: 980034 Rev. 2 10/10...