EFCO Special Purpose Windows Installation - Manual (Page 19)

EFCO CORPORATION 3/5/2014 PART NO. YW40 Page 2 of 10
Window Installation Instructions - Hung Window Installation Section -
4.
Double hung windows are shipped from the factory with a temporary shipping device. This device
must remain attached to the window until just prior to installation into the opening. Early removal
can cause rolling, spreading, and twisting of the jamb. This may cause disengagement of the
sash balance, disengagement of the sash from the frame, or severe personal injury.
5.
Due to the attachment and location of all balances, refer to the project shop drawings for any
through jamb anchorage method. (All fasteners at jamb locations shall be flat heads.)
Completely read the General Installation Instructions and all other sections which pertain
to your project before starting work. These recommendations are for general erection
procedures only. For actual job conditions, see the details on the shop drawings. For
perimeter anchor types and spacing, refer to the approved shop drawings or consult the
project design professional.