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| MODEL 804701 |
ROOF MOUNT INSTALLATION |
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For use with Models CTWH30, CTWH36, IH4227, | ||||
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| WIRE THE VENTILATOR | ||
PREPARE THE ROOF |
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| 5 Remove 10 |
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| COVER SCREWS |
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18" |
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| and lift off |
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| ventilator cover. |
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| 6 Feed the electric |
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| power cable | GROUND |
1¼" dia. hole |
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| through the 1¼" | TO |
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| GROUNDING | ||
REMOVE SHINGLES |
| DIAMETER HOLE | SCREW | |
| and connect cable |
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1211/16" | 1" |
| to ventilator with a | WHITE |
RafterRoof | RafterRoof |
| proper connector | TO |
| for the type of | |||
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| BLUE | |
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| cable being used. |
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| 20½" | 7 Connect BLACK |
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| TO BLACK, | 120 |
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| WHITE TO BLUE, | |
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| VAC | |
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| and GROUND | |
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| LINE | |
Pilot Hole |
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| TO GROUNDING | IN |
(centered | 11" dia. |
| SCREW. |
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between rafters) | hole |
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| BLACK TO BLACK |
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125/ 8" |
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| INSTALL THE VENTILATOR | |
21" |
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| Drill 6 | |
| 10 Cover | Mounting | ||
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| Holes | |
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| Screws | |
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From inside the attic space: |
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1 Drill a PILOT HOLE up through the roof, centered between |
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ROOF RAFTERS. |
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| Remove |
From outside - on the roof: |
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| roofing |
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| nails from | |
2 Measure and mark the 21" x 20½" rectangle. Cut and remove |
| top 2/3 of | ||
only the shingles inside this rectangle. |
| Flashing | shingles. | |
3 Measure and mark the 11" DIAMETER HOLE and the 1¼" |
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DIAMETER HOLE. Cut these holes all the way through the | Sheet |
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roof. |
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| Damper |
| 2" |
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" |
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| Bird Screen | |
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29½ |
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| OUTSIDE - ROOF VIEW | |
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| 7" | ||
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| 8 Remove roofing nails from top 2/3 of shingles around | |
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| area. |
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2 |
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| 9 Slide the ventilator's FLASHING SHEET up and under the | |
5" |
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| loosened shingles until ventilator's discharge collar fits into | |
| 2" |
| 11" diameter hole. |
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| 10 Use the 6 screws (provided) to attach the ventilator to the | ||
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For flat roof installations: |
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| roof. DRILL 6 MOUNTING HOLES inside the ventilator, | |
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| as necessary. |
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4 Build a curb that will mount the blower at a minimum pitch of |
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11 Seal the screw heads, loosened shingles, and edges of | ||||
2/12. Discharge end of the blower should be pointed away | the flashing sheet, with a good grade of roofing cement. | |||
from prevailing winds. |
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| 12 Check for free movement of the | |
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| and | |
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| operation. |
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