Installation & Operation Manual
2 Venting
E |
Direct venting - see page 14.
NOTICE | Before installing a venting system, follow all requirements found in the General Venting section. |
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3'
MIN
12"
MIN
This option uses sealed
To use the optional Direct Vent system, you must install specific vent kits and venting materials. The following is a detailed explanation of Direct Vent installation requirements, including the components used and vent kit part numbers (reference Table 2E on page 27 for kit numbers).
Flue outlet piping
Venting Guidelines
If using this venting option, a sealed
This vent system has specific vent material and installation requirements. Only use listed sealed
Seal all vent joints and seams
Drain tee installation
A drain tee must be installed in the vent pipe to collect and dispose of any condensate that may occur in the vent system. The drain tee must be installed as the first fitting after the horizontal ell on the top of the unit (see FIG.
WARNING
Do not combine the flue from this unit with the vent from any other appliance. Do not combine flues from multiple appliances into a common vent. The flue from this unit must be a dedicated stack.
Connect the flue vent directly to the flue outlet opening on the top of the unit. Make the connections from the unit vent to the outside stack as direct as possible with no reduction in diameter. Provide adequate clearance to combustibles for the vent connector and firestop. Follow the vent manufacturer’s instructions when installing sealed
Provide adequate clearance to combustibles for the vent connector and firestop.
When planning the venting system, avoid possible contact with plumbing or electrical wiring inside walls, ceilings, and floors. Locate the unit as close as possible to chimney or gas vent.
When a vent system is disconnected for any reason, the flue must be reassembled and resealed according to the vent manufacturer’s instructions.
The installed length of flue from the unit to the outside point of termination must not exceed 50 equivalent feet (15.2 m). Subtract 5 feet (1.5 m) of equivalent length for each 90° elbow. Subtract 2.5 feet (0.7 m) of equivalent length for each 45° elbow.
Vertical DV venting termination
Vertical venting uses the unit’s internal combustion air blower to force the flue products out of the
You must use the vent termination recommended by the vent manufacturer for vertical direct vent terminations. Follow all vertical venting termination information for clearances and location under the Vertical Vent Termination Clearances and Location section on pages 17 - 18.
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