18-CE01D1-1F-EN
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Maximum Vent Length Table
Maximum Vent Length Table
Maximum Total Equivalent Length In Feet
for Vent and Inlet Air (See Notes)
Model
2 Inch or 2.5 Inch Pipe
3 Inch or 4 Inch Pipe
Altitude 0–2,000 Feet
S9V2B040U3PS, S9V2B040D3PS,
S9V2B060U3PS, S9V2B060D3PS,
S9V2B060U4PS
200
200
S9V2B080U3PS, S9V2B080D3PS,
S9V2B080U4PS, S9V2B080D4PS,
S9V2C080U5PS
100
200
S9V2C100U4PS, S9V2C100D4PS,
S9V2C100U5PS, S9V2C100D5PS
50
200
S9V2D120U5PS, S9V2D120D5PS
Note 1
200
Altitude 2,001–5,400 Feet
S9V2B040U3PS, S9V2B040D3PS,
S9V2B060U3PS, S9V2B060D3PS,
S9V2B060U4PS
200
200
S9V2B080U3PS, S9V2B080D3PS,
S9V2B080U4PS, S9V2B080D4PS,
S9V2C080U5PS
80
120
S9V2C100U4PS, S9V2C100D4PS,
S9V2C100U5PS, S9V2C100D5PS
50
150
S9V2D120U5PS, S9V2D120D5PS
Note 1
200
Altitude 5,401–7,800 Feet
S9V2B040U3PS, S9V2B040D3PS,
S9V2B060U3PS, S9V2B060D3PS,
S9V2B060U4PS
100
150
S9V2B080U3PS, S9V2B080D3PS,
S9V2B080U4PS, S9V2B080D4PS,
S9V2C080U5PS
50
70
S9V2C100U4PS, S9V2C100D4PS,
S9V2C100U5PS, S9V2C100D5PS
Note 1
100
S9V2D120U5PS, S9V2D120D5PS
Note 1
100
Altitude 7,801–10,100 Feet
S9V2B040U3PS, S9V2B040D3PS,
S9V2B060U3PS, S9V2B060D3PS,
S9V2B060U4PS
90
90
S9V2B080U3PS, S9V2B080D3PS,
S9V2B080U4PS, S9V2B080D4PS,
S9V2C080U5PS
Note 1
50
S9V2C100U4PS, S9V2C100D4PS,
S9V2C100U5PS, S9V2C100D5PS
Note 1
50
S9V2D120U5PS, S9V2D120D5PS
Note 1
50
Notes:
1.
Not allowed
2.
FOR DURAVENT MANUFACTURED MODULAR VENTING SYSTEMS THAT ARE IN THE APPROVED VENT PIPE MATERIAL TABLE,
EQUIVALENT VENT LENGTHS MAY BE DIFFERENT FROM WHAT IS SHOWN ABOVE. REFER TO THE VENTING SYSTEM
MANUFACTURER'S INSTALLATION INSTRUCTIONS FOR APPROPRIATE VENTING DIAMETERS AND EQUIVALENT LENGTHS.
3.
Minimum vent length for all models: 15' equivalent.
4.
DO NOT MIX PIPE DIAMETERS IN THE SAME LENGTH OF PIPE OUTSIDE THE FURNACE CABINET (Except adapters at the top of the furnace).
If different inlet and vent pipe sizes are used, the vent pipe must adhere to the maximum length limit shown in the table above (See note 7
below for exception). The inlet pipe can be of a larger diameter, but never smaller than the vent pipe.
5.
MAXIMUM PIPE LENGTHS MUST NOT BE EXCEEDED! THE LENGTH SHOWN IS NOT A COMBINED TOTAL, IT IS THE MAXIMUM LENGTH OF
EACH (Vent or Inlet air pipes).
6.
One SHORT radius 90° elbow is equivalent to 10' of 4" pipe, 10' of 3" pipe, or 8’ of 2" pipe. One LONG radius elbow is equivalent to 6' of 4"
pipe, 7’ of 3" pipe, or 5' of 2" pipe. Two 45° elbows equal one 90° LONG elbow. One MITERED elbow is equivalent to 12’ of 3” pipe or 12’ of
2” pipe.
7.
The termination tee or bend must be included in the total number of elbows. If the BAYAIR30AVENTA or BAYAIR30CNVENT termination kit
is used, the equivalent length of pipe is 5 feet. For BAYVENT200B and BAYVENTCN200B the equivalent length is 0 feet.
8.
For Canadian applications, venting systems must meet ULC-S636 requirements.
9.
The INLET AIR of one pipe systems require the installation of a minimum of one 90° elbow (to prevent dust and debris from falling straight
into the furnace).
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Summary of Contents for S9V2B040D3PSBA
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