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5.2.4 VERTICAL AIR TERMINAL INSTALLATION - MODEL GDS60
!WARNING
MAINTAIN A MINIMUM 2” SPACE BETWEEN THE AIR INLET BASE AND THE STORM COLLAR.
A. | Fasten the roof support to the roof using the screws provided. The |
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| roof support is optional. In this case the venting is to be adequately |
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| supported using either an alternate method suitable to the authority |
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| having jurisdiction or the optional roof support. | FIGURE 5.2.4a |
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B. | Stretch the inner flex pipe to the required length. Slip the |
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| inner flex pipe a minimum of 2” over the inner pipe of the air |
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| terminal connector and secure with 3 #8 screws. Seal using |
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| a heavy bead of high temperature sealant |
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| supplied). |
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C. | Repeat using the outer flex pipe, using a heavy bead of |
| ROOF SUPPORT | ||
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| high temperature sealant |
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D. | Thread the air terminal connector / vent pipe assembly down through |
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| INNER PIPE | |
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| the roof. The air terminal must be positioned vertically and plumb. |
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| FIGURE 5.2.4d | |
| Attach the air terminal connector to the roof support, ensuring that the | AIR | |||
| top of the air terminal is 16” above the highest point that it penetrates |
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| TERMINAL |
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| the roof. |
| CONNECTOR |
E.Remove nails from the shingles, above and to the sides of the air terminal connector. Place the flashing over the air terminal connector leaving a min. 3/4” of the air terminal connector showing above
the top of the flashing. Slide the flashing underneath the sides and upper edge of the shingles. Ensure that the air terminal connector is properly centred within the flashing, giving a 3/4” margin all around. Fasten to the roof. Do not nail through the lower portion of the flashing. Make
HIGH TEMPERATURE SEALANT
INNER FLEX PIPE
OUTER FLEX PIPE
F.Aligning the seams of the terminal and air terminal connector, place the terminal over the air terminal connector making sure the vent pipe goes into the hole in the terminal. Secure with the three screws provided.
G.Apply a heavy bead of weatherproof caulking 2” above the
flashing. Install the storm collar around the air terminal and slide down to the caulking. Tighten to ensure that a
2” AIR INLET BASE
CAULKING
STORM COLLAR
WEATHER SEALANT
FLASHING
H. | If more vent pipe needs to be used to reach the appliance see “HORIZONTAL | FIGURE 5.2.4e | ||
| AIR TERMINAL INSTALLATION” section. |
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| 24.1 |
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