DARAY EXCEL, Installation Manual, Page: 15 / 40

Page 14 of 35
These instructions are based on the assumption of a fresh fit into a room with no
previous lighting structures. With installations onto sites with equipment already in
place, we recommend that the previous lights’ mounting plate be removed and the
new one fitted as if into a fresh fitting.
After concluding the structural stability of the ceiling structure it will be necessary
to assess the construct and decide on the best course of action for installing the
ceiling plate. There are various different methods for fixing the plate onto the
ceiling, below are a few example methods that can be used.
4.1.2 Attachment methods and void suspension
Please note, the minimum room height allowed for fixing requires the bottom of the
ceiling plate to be no lower than 2290mm.

Bolted Directly into the structure and secured with chemical bonding
The is our primary choice for mounting our lights to the ceiling structure,
appropriate rawl bolts and chemical bonding should be used to secure the fitting.

Bolted to a Uni-strut Construct
When using a uni-strut construct for mounting the ceiling plate, you should ensure
that the uni-strut is cross braced to ensure it is secure and does not move.

Weight dispersed over several timber frames
Timber framing can be used for attaching ceiling mounted units. The framing should
be assessed by a competent structural engineer to ensure suitability; appropriate
fixings should also be used.
Another option available would be attaching the ceiling plate to uni-strut that has
been used to sandwich multiple timber rafters there-by spreading the weight of the
unit across an enlarged area.