Installation
Instructions
(cont'd)
VENTING
SYSTEM
EXAMPLE
INSTALLATIONS
FOR ALL MODELS
The vent piping cannot under any circumstances be run down-
hill.
The vent piping can be inst_led as follows:
1. No more than 3 elbows can be used.
MAX.
MIN. RISE I/4"
PER FOOT
2. Horizontal
runs require a minimum
V,,"rise per foot.
13" MIN.
35' MAX.
16" MIN,
I1" MIN.
MIN.
RISE ¼"
PERFOOT
3. The total vertical and horizontal
run cannot exceed 35'
for 3" vent piping (20' maximum if 2" vent piping is
_:se_ on 40,000 BTU/Hr. models) with a maximum of
three 90 ° elbows.
MIN. RISE¼"
PERFOOT
ONE ELBOW
MAX. 3
MIN.
RISE }/4"
PER FOOT
MIN. RISE 1/4"
PERFOOT
I
MIN. RISE¼"
PERFOOT
MIN. RISE¼"
PERFOOT
18