Installation Instructions

2. DRILLING THE GUIDE HOLE: Measure the distance

to the ridgeline and to one end of the roof. Transfer

these exterior dimensions to inside the attic. Next,

locate a center position between two rafters (inside

the attic) as near as possible to the outside measure-

ments. Drill a guide hole through the roof from inside

that is equal distance from the two rafters. Place a

marker through the roof for quick identification while

on the roof.

3. CUTTING THE HOLE: Draw a circle 14

2" in diameter

using the guidehole as the center. A template is provided

on the back of the carton for drawing the circle.

4. CUTTING THE HOLE IN THE ROOF: Using a sabre

saw, cut and remove all roof shingles (and deck) inside

the 14

2"-diameter circle. Next, cut an extra 1" off the

top half of the hole (shingles only) to allow room for

placing and positioning the flange. Do not cut through

any rafters. Cutting a rafter may cause your roof to sag.

5. SECURING THE BASE: Make sure the base flange

parallels the ridgeline of the roof. The embossed arrow

and word UP should be pointing toward the ridgeline.

Slip the upper half of the flange under the shingles.

Center unit over the hole (as shown above). Attach

flange securely to roof using roofing nails around the

perimeter of the unit (underneath shingles at the top).

A nonhardening caulk can be used as a seal between

the flange and shingles.

6. INSTALLING THE THERMOSTAT: Inside the attic,

separate the thermostat cover from the mounting plate.

Secure the plate to a rafter. See Step 7 to connect the

thermostat.

7. WIRING THE THERMOSTAT: Wire the thermostat

as shown below. Attach your ground wire to the

thermostat box.

POWERCOOL PLUS 15 / POWERCOOL PLUS 12 POWER ATTIC VENTILATORS INSTALLATION INSTRUCTIONS / WARRANTY

WIRING THE THERMOSTAT

YOUR POWER SUPPLY

GROUND SCREW

BLACK

WHITE

CONNECTED AT THE FACTORY–

DO NOT DISCONNECT

inches