DARAY SL730 Series, Operating & Installation Manual

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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 plates be removed and the new ones 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 loading the plate onto the ceiling, below are various example
methods that can be used.
4.3.1 Attachment methods and void suspension
The ceiling mount is split into 2 parts, the fixing plate and the ceiling plate. Please note, the
recommended room height allowed for fixing requires the bottom of the ceiling plate to be no
lower than 2.4m.

Bolted Directly into a structural slab and secured with chemical bonding
This 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.

Welded to structure
The fixing plate is the component that would be welded to the structure; any welding must be
assessed to be capable of handling a 500Kg load.

System anchored to composite deck
A customised composite deck could be used either in conjunction with or as a replacement to
the fixing plate. Any substitute parts must meet safety standards and be assessed by a
competent structural assessor. The composite deck is designed to spread the weight of the light
over an enlarged area.

System bolted to structure
This system requires prior planning during the base construction phase of the ceiling above,
bolts should be fed through the metal ceiling prior to the concrete base being poured. These
bolts should be based on the fixing plate layout in section 3.5.1
4.3.2 Lighting configuration
Dependant on the choice of attachment method, and whether the light is being attached in a
void or directly onto an open surface ceiling; custom mounting aspects may be required.
Daray’s standard mounting recommendation is to have the fixing plate directly bolted into the
structure of an open surface ceiling when possible.
Ultimately the mounting method used is the responsibility of the project engineer or fitter. This
includes the specification of attachment hardware, lateral bracing and the suitability of the
surface to be fixed to.