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107774-01- 9/17
NOTICE
Do not exceed maximum vent/combustion air system length. Refer to Tables 7.1B, 7.5, 7.13, and 7.21
in this section for maximum vent/combustion air system length.
Use only vent and combustion air terminals and terminal locations shown in Tables 7.5, 7.13 and
7.21.
5. Minimum Vent and Air Intake Lengths - Observe the minimum vent lengths shown in Tables 7.5, 7.13 and 7.21.
6. Clearances to Combustibles - Maintain the following clearances from the vent system to combustible construction:
• Vent - 1/4” (also observe clearances through both combustible and non-combustible walls - see 9)
• Air Intake - 0”
• Concentric Portion of Concentric
Terminals - 0”
7. Pitch of Horizontal Vent Piping - Pitch all horizontal vent piping so that any condensate which forms in the piping will run
towards the boiler.
• Pitch CPVC/PVC vent piping 1/4” per foot.
• Pitch Polypropylene vent piping 5/8” per foot.
VII. Venting
A. Vent System Design (continued)
Table 7.1B: Vent/ Air Intake Fitting Equivalent Length
CPVC/PVC Fitting
Equivalent
Length (ft)
PolyPro, Polyflue
or InnoFlue
Vent Fitting
Equivalent
Length (ft) FasNSeal Vent Fitting
Equivalent
Length (ft)
3” 90° Elbow (“Sanitary Bend”)
4.0
3” 90° Elbow
8.7
3” 90° Elbow
4.0
3” 45° Elbow
2.0
3” 45° Elbow
4.6
3” 45° Elbow
2.0
3” 90° Elbow (“Short Bend”)
10.0
3” Straight Tee
18.0
3” Coupling
0.0
3” Boot Tee
8.0
Figure 7.2: CPVC and PVC Elbows
Содержание K2WTC
Страница 10: ...10 107774 01 9 17 Figure 4 1 Minimum Clearances To Combustible Construction IV Locating the Boiler continued ...
Страница 12: ...12 107774 01 9 17 Figure 5 1 Wall Layout Mounting Hole Location V Mounting The Boiler continued ...
Страница 81: ...81 107774 01 9 17 X Domestic Hot Water Piping continued Figure 10 1 Domestic Hot Water Piping ...
Страница 88: ...88 107774 01 9 17 XI Wiring continued XI Wiring continued ...
Страница 89: ...89 107774 01 9 17 Figure 11 7 Internal Wiring Connections Diagram XI Wiring continued ...
Страница 100: ...100 107774 01 9 17 Lighting and Operating Instructions XII Start Up and Checkout continued ...
Страница 141: ...141 107774 01 9 17 XVI Repair Parts continued ...
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Страница 147: ...147 107774 01 9 17 XVI Repair Parts continued ...
Страница 149: ...149 107774 01 9 17 XVI Repair Parts continued ...
Страница 151: ...151 107774 01 9 17 XVI Repair Parts continued 120 121 122 123 124 125 126 127 ...
Страница 158: ...158 107774 01 9 17 SERVICE RECORD DATE SERVICE PERFORMED ...
Страница 159: ...159 107774 01 9 17 SERVICE RECORD DATE SERVICE PERFORMED ...
Страница 160: ...160 107774 01 9 17 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net ...