Lifebreath 1500E-ECM, Инструкция по установке, Страница: 17 / 28

17
Roof Curb Assembly Instructions
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 locking 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 complete. 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 supports under deck.
Securing the Frame
To ensure proper mating with unit, it is critical
that mounting 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 opposite 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.
side piece
slot for tab
wood nailer strip
side piece
slot for tab
locking tab
spike
wood nailer strips
tabs through slots
end piece
wood nailer strip
end piece
locking tab
Roof Curb Assembly
Figure 1
Figure 2
Figure 3