Rinnai RUC80i Installation And Operation Manual page 36

PVC/CPVC Equivalent Vent Length Calculation Sheet
Fitting / Termination Type
1) 90 elbow
2) 45 elbow
3) IPEX Low Profile Termination
4) IPEX 4" Concentric Termination
5) IPEX 3" Concentric Termination
6) 3" Tee Termination
7) 4" Tee Termination
8) 3" Snorkel Termination
9) 4" Snorkel Termination
10) Length of Straight Section in feet
Note: Ensure SW 1 in DIPSW 1 is in "OFF" position if vent length is greater than 21ft (6.4m).
36
Equivalent Vent Length Calculation Sheet
Number of
NA
KBD Series Manual
Equivalent Vent
x 5
x 2.5
X 5
x 20
x 20
x 5
x 5
x 15
x 15
Total (add up
lines 1 through
10)
Total Equivalent
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