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Option
9
10
Illustrated in Figure
7.19
7.20
Pipe Penetration
Through Structure
Vent
Roof
Roof
Intake
Roof
Roof
Material
Vent
DuraVent
PolyPro
(Rigid/Flex)
Centrotherm
InnoFlue
SW/Flex
Intake
B Vent/PVC
B Vent/PVC
Nominal Diameter
Vent
3”
3”
Intake
3”
3”
Min B Vent ID
6”
6”
Min Equivalent Vent Length:
Models
135
36”
36”
150
52”
52”
180
52”
52”
Max Equivalent Vent Length (Note 1):
Models
135
135ft
135ft
150
135ft
135ft
180
135ft
135ft
Vent Manufacturer’s PN for Flex
Termination/Components Required
3PPS-VFT
3PPS-BV*
3PPS-FLEX**
IFBK03****
IAWP03B
* Specify size of B vent (e.g. 3PPS-BV6 is for use with 6” B vent)
** Specify length in feet.
**** Specify Flex length and B-vent diameter (e.g. IFBK032506 includes 25ft of flex and used with 6” B
vent)
Note 1: Max vent lengths shown also apply to the intake. Flex vent reduces the maximum allowable
vent length. See equivalent lengths for flex vent shown in Table 7.14 and sizing example on next
page.
VII. Venting
C. Design Requirements Unique to Vertical Venting Systems (continued)
Table 7.13b: Summary of Vertical “B-Vent Air Chase” Vent Options
(B-Vent Chase MUST Be Sealed)
NOTICE
Vertical venting and combustion air roof penetrations (where applicable) require the use of roof
flashing and storm collar, which are not supplied with the boiler, to prevent moisture from entering the
structure.
Summary of Contents for K2WTC-135
Page 81: ...81 107774 02 4 18 X Domestic Hot Water Piping continued Figure 10 1 Domestic Hot Water Piping...
Page 89: ...89 107774 02 4 18 XI Wiring continued...
Page 90: ...90 107774 02 4 18 Figure 11 8 Internal Wiring Connections Diagram XI Wiring continued...
Page 101: ...101 107774 02 4 18 Lighting and Operating Instructions XII Start Up and Checkout continued...
Page 142: ...142 107774 02 4 18 XVI Repair Parts continued...
Page 145: ...145 107774 02 4 18 XVI Repair Parts continued...
Page 148: ...148 107774 02 4 18 XVI Repair Parts continued...
Page 150: ...150 107774 02 4 18 XVI Repair Parts continued...
Page 152: ...152 107774 02 4 18 XVI Repair Parts continued 120 121 122 123 124 125 126 127...
Page 159: ...159 107774 02 4 18 SERVICE RECORD DATE SERVICE PERFORMED...