Friedrich ZStar operation manual Window Requirements, Installation

Installation Instructions

Window Requirements

NOTE: All supporting parts should be secured to firm wood, masonry, or metal.

1.This unit is designed for installation in standard double hung windows with actual opening widths of 22" to 36". The upper and lower sash must open sufficiently to allow a clear vertical opening of 13" from the bottom of the sash to the window stool.

2.If storm window presents interference, fasten a 2" wide wood strip to the inner window sill across the full width of the sill. The wood strip should be thick enough to raise the height of the window sill so that the unit can be installed without interference by the storm window frame.

See Fig. 5-2. The top of the wood strip should be approximately 3/4" higher than the storm window frame (STORM WINDOW FRAME) or wood strip (OUTDOORS) to help condensation to drain properly to the outside.

3.Install a second wood strip (approximately 6" long by 11/2" wide and same thickness as first strip) in the center of the outer sill flush against the back off the inner sill. This will raise the L bracket as

shown Fig. 5-2.

4.If the distance between STORM WINDOW FRAME and WOOD STRIP MOUNTED ON TOP OF INNER SILL is more than 1", two of wood strips are not necessary.

INNER	WOOD STRIP MOUNTED		1" MAX.	3/4"
SILL	ON TOP OF INNER SILL
				CLEARANCE
				STORM
		INNER		WINDOW
				FRAME
		SILL
		WOOD STRIP
		FOR L BRACKET
	OUTER			OUTER
	SILL			SILL
INDOORS	OUTDOORS	INDOORS		OUTDOORS
	Fig. 5-1		Fig. 5-2

Installation

HARDWARE

TYPE A: 11EA	TYPE B: 5EA		TYPE C: 3EA
(SHORT SCREW)	(WOOD SCREW)		(L BRACKET)
10mm	16mm
TYPE D: 1EA	TYPE E: 1EA	TYPE F: 2EA	TYPE G: 1EA
(SEAL STRIP)	(SASH SEAL)	(GUIDE PANEL)	(SUPPORT BRACKET)
(Adhesive backed)	(Not adhesive backed)

8