American Aldes HRV 1500 SFD - Manual (Page 9)

9
Frame Assembly
1. Take one end piece (locking tabs) and one side piece
(slots). Stand both pieces vertically on the floor or roof.
See Figure 1.
2. Raise slightly the corner of the end piece (locking tabs)
and mate with side piece (slots), ensuring that lower lock-
ing tab with leading edge is through slot opening. See
Figure 2.
3. Push down on top edge of end piece. Ensure that all 3
of the locking tabs are feeding into each corresponding
slot. Once both pieces are flush, the process is com-
plete. See Figure 3.
4. Drive one spike provided into wood nailer strips at each
corner. See Figure 3.
Frame Application and Location
This roof mounting frame provides necessary support when
the unit is installed. The frame can be installed directly on
deck having adequate structural strength or on roof sup-
ports under deck.
Securing the Frame
To ensure proper mating with unit, it is critical that mount-
ing frame be squared to the roof, as follows:
1. With frame situated level in desired location on roof
trusses, tack weld one corner of frame.
2. Measure frame diagonally from one corner to the oppo-
site corner. Repeat with the remaining two corners.
These dimensions must be equal for the frame to be
square.
3. It is extremely important to sight frame from all corners
to ensure that the frame is not twisted across top side.
Shim frame under any low sides.
4. After frame has been squared, straightened and
shimmed, weld or attach frame securely to roof.
MAX. SLOPE TOLERANCE: 1/16" per linear foot in
any direction.
Note specification of duct location on bottom of
HRV when positioning cross members (duct cavity).
See next page.
Roof Curb Assembly Instructions for Model HRV 1500 SFDE
Roof Curb Assembly