Guardian PowerVent Training Manual SVC900; Rev 1
Page 27
VENTING THE GUARDIAN POWERVENT
This unit can be vented using only the following recommended pipe material. Use only 2- or 3-
inch diameter pipe. The mixing of 2" and 3" vent pipe is not recommended. If 3" pipe is used, a
2" to 3" bell coupling is recommended at the rubber coupling.
Installation up to 7,700 feet is possible with all models. You will not need to make any changes
if you use 3” venting. If you use 2” venting, you will need to decrement the maximum vent
length by 10 feet.
• PVC (Schedule 40, ASTM D-1785)
• CPVC (Schedule 40, ASTM F-441)
• ABS (Schedule 40, ASTM D-2661)
Using 2 inch PVC
For the 2” vent, one 90° elbow is
approximately equal to 6 feet of pipe. One
45° elbow is approximately equal to 3 feet
of pipe.
Minimum vent length for 2”vent pipe is
1.00 foot of vertical pipe, one (1)
90°elbow, and 3.00 feet of horizontal pipe.
Using 3 inch PVC
For the 3” vent, one 90° elbow is
approximately equal to 5 feet of pipe. One
45° elbow is approximately equal to 2.5
feet of pipe.
Minimum vent length for 3” vent pipe is
1.00 foot of vertical pipe, one (1)
90°elbow, and 4.00 feet of horizontal pipe.
Table 6 – Venting the Guardian PowerVent
Number of 2
inch 90
0
elbows
with vent
terminal
Number of 2
inch 45
0
elbows
Maximum 2
inch pipe
length in feet
One (1) None 44.00
One (1) One (1) 41.00
Two (2) None 38.00
Two (2) One (1) 25.00
Three (3) None 32.00
Number of 3
inch 90
0
elbows
with vent
terminal
Number of 3
inch 45
0
elbows
Maximum 3
inch pipe
length in feet
One (1) None 95.00
One (1) One (1) 92.50
Two (2) None 90.00
Two (2) One (1) 87.50
Three (3) None 85.00
Three (3) One (1) 82.50
Four (4) None 89.00
Four (4) One (1) 77.50
Five (5) None 75.00
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