Crown Boiler BWF Series Installation Instructions Manual page 63

Appendix A (continued)
Classification Used in this
Manual
Vent Option #
Illustrated in Figure
Vent
Structure
Penetration
Intake
Material Vent
Intake
Nominal Vent
Diameter
Intake
BWF063 - 105
BWF126 - 175
Maximum Vent
Length
BWF189, 210
BWF220, 245
BWF063 - 105
Maximum
BWF126 - 175
Intake
BWF189, 210
Length
BWF220, 245
Vent
Terminal
Option A
Intake
Vent
Terminal
Option B
Intake
1. Tee or Cap terminal is supplied by the installer and is compatible with special gas vent system. See Table 6.7 in this manual for
details.
2. Disk Terminal is included with direct vent kit.
3. Suitable for use on BWF063 - BWF175 only. Miter terminal is part #8110701 and is purchased separately. 45° Elbow is by
special gas vent manufacturer.
109836-01 - 04/20
Table A.2: Summary Of Direct Vent Options
(See Section 6 for Additional Details on Vent System Installation)
Horizontal Direct Vent
5
A.3, A.4
Wall
Wall
Listed AL29-4C Stainless Special Gas Vent System (See Boiler Manual)
3"
3"
50 ft Not Permitted Not Permitted
Not Permitted
Not Permitted
Not Permitted Not Permitted
60 ft Not Permitted Not Permitted
Not Permitted
Not Permitted
Not Permitted Not Permitted
3" Tee
1
3" Disk
2
Miter + 45 Miter + 45
Elbow
3
3" Disk
2
Figure A.3: Horizontal Installation of Air Intake Terminal
6 7
A.3, A.4 A.3, A.4
Wall Wall
Wall Wall
26 Gauge Galvanized Pipe or PVC
3" 4"
4" 4"
50 ft Not Permitted Not Permitted
15 ft
50 ft
40 ft
50 ft Not Permitted Not Permitted
25 ft 50 ft
40 ft
3" Tee 4" Tee
1 1
4" Disk 4" Disk
2 2
Not Permitted
Elbow
3
4" Disk 4" Disk
2 2
Vertical Direct Vent
8 9
A.6, A.7 A.6, A.7
Roof Roof
Roof Roof
3" 3"
3" 4"
50 ft Not Permitted Not Permitted
50 ft
Not Permitted 15 ft
Not Permitted Not Permitted
60 ft Not Permitted Not Permitted
50 ft
Not Permitted 25 ft
Not Permitted Not Permitted
3" Cap 3" Cap
1 1
3" 180° El 4" 180° El
3" Cap 3" Cap
1 1
3" Disk 4" Disk
2 2
10
A.6, A.7
Roof
Roof
4"
4"
Not Permitted
50 ft
40 ft
Not Permitted
50 ft
40 ft
4" Cap
1
4" 180° El
4" Cap
1
4" Disk
2
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