Pella 812W0100 installation instructions Points around the window

2 SETTING AND FASTENING THE WINDOW (continued)

G.Check the interior reveal. Make sure the measurement from the interior face of the window to the interior face of the wall is equal at several

points around the window. 2G

Note: If the dimensions are not equal, check to make sure the fins are folded out to 90° at all points.

H.Check window operation (vent units only). Unlock the window by lifting the lock handle up. Open the window by rotating the crank handle. Remove the shipping spacers. Open and close the window a few

times to check for proper operation. Close and lock the window.

Note: If there are any problems with the operation of the window, recheck shim locations and adjust for plumb and square.

I.Fasten the window to opening by driving 2" galvanized roofing nails into each pre-punched hole in the nailing fin.

Note: Make sure the fin corner is lying as flat as possible.

J.For units with flexible non-structural curved fin on which clips were

added: Fasten the clips to the opening by driving two #6 x 1-1/2" or longer corrosion resistant into the pre-punched holes in the clips. If clips are bent and fastened to the interior stud, install the screws as close to the bend as possible.

Note: DO NOT shim above the window.

mm	1	INCHES		2
20		30	40			3
				50	60
						70

2I

2J

K.For large units with frame height or frame width > 73”; additional frame support screws must be installed at the head and jambs. On the roomside of the unit, drill 13/64” diameter clearance holes through the head and jambs at the 1/3 points of the frame.

L.On the roomside of the unit, drill 13/64” diameter clearance holes through the head and jambs at the 1/3 points of the frame.

1/3

1/3

>73" 1/3

1/3

>73"

1/3

1/3

1/3

1/3

1/3

2L

3/16"

Max.

Drill 13/64"

clearance hole

through frame

Screws not required at the sill.