Venting the Boiler 29
5 4
s
.
Terminating the Vent
CAUTION
●
In cold climate, freezing air can enter into the vent and
cause freeze damage to unit. See Freeze Protection page in
manual for appropriate precautions.
Typical Venting Design
●
VC : 3" Schedule 40 PVC
●
Maximum Three 90 Elbows.(one elbow is equal to 5ft length)
˚
●
Maximum Vent Length : See table below.
●
Sloping 1" in 10" - 1" in 12"
PVC pipe extension is
recommended to prevent
cross contamination.
Min 18"
Must be sealed
with PVC glue &
high temp silicon
Vent Termination Installation Procedure(3" PVC)
1. Drill 2 holes.(Air intake hole and flue gas outlet hole)
2. The length, Z, is as following
Model
VC
Z
115mm (4.53 inch)
3. Insert the air intake and flue gas outlet PVC pipe.
The lenght of PVC pipe from the wall is as following
Model
VC
X
50 ~ 60mm
(1.97 ~ 2.36 inch)
Y
120 ~ 130mm
(4.72 ~ 5.12 inch)