Installation & Operation Manual
2 Venting
Vent system options: (Note: Installations shown below are representative, actual installations may vary from those shown.)
A | This option uses a vertical rooftop flue termination | D | This option uses a powered vent assembly to |
with air supplied from the equipment room - see | exhaust the flue products out a sidewall with air | ||
page 16. | supplied by a pipe from the sidewall - see page 25. | ||
CONVENTIONAL NEGATIVE | HORIZONTAL DIRECTAIRE | ||
VENTING |
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DRAFT VENTING |
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| NOTE: CAT I |
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| POWERED VENT IS CONNECTED DIRECTLY TO THE OUTSIDE |
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| VENT CAP. IF THE POWERED VENT IS NOT CONNECTED |
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| DIRECTLY TO THE OUTSIDE VENT CAP, THEN CAT IV - |
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| VENT MATERIALS MUST BE USED FROM THE POWERED VENT |
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| TO THE OUTSIDE VENT CAP. |
3'
MIN
12"
MIN
B | This option uses a vertical conventional vent for | E | This option uses a sealed |
flue products with air supplied by a pipe from the | separate combustion air pipe to the outdoors. | ||
sidewall or rooftop - see page 19. | This system terminates both the flue and | ||
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| combustion air inlet in the same pressure zone |
VERTICAL DIRECTAIRE VENTING | DIRECT VENT - see page 26. | ||
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| 3' |
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| MIN |
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| 12" |
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| MIN |
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C | This | option uses a powered vent | assembly | F | This option uses the installation of a special air |
to exhaust the flue products out a sidewall | inlet / vent cap on top of the unit - see page 30. | ||||
vent | termination with air supplied | from the |
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| equipment room - see page 22. |
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SIDEWALL VENTING |
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| OUTDOOR VENTING | ||
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NOTE: CAT I
POWERED VENT IS CONNECTED DIRECTLY TO THE OUTSIDE
VENT CAP. IF THE POWERED VENT IS NOT CONNECTED
DIRECTLY TO THE OUTSIDE VENT CAP, THEN CAT IV -
VENT MATERIALS MUST BE USED FROM THE POWERED VENT
TO THE OUTSIDE VENT CAP.
14 
