Honeywell Ex-Or MLS2401CDR Installation And Commissioning Instructions page 2

Introduction
The MLS2401CDR offers high performance presence detection and contains a photocell to monitor total light
levels, allowing the light output of dimmable luminaires to be adjusted to suit the natural light level available. It
also contains an Infrared receiver that can be used both for local control from a hand-held device, when in
service, and for initial CDW12U5/CDH4U5/CDH8U5 system commissioning. When properly installed and
connected the MLS2401CDR is an SELV device
Location
The MLS2401CDR is an extremely sensitive movement detector; it is essential therefore that it be installed on a
rigid surface that will not itself be subject to movement or vibration.
Please note that MLS2401CDR is not recommended for applications where there are large surface areas of
metal, e.g. metal ceiling or floor tiles, as unpredictable sensitivity may result
Microwaves can penetrate lightly built partitions, glass etc and thus movement in adjacent spaces may cause
spurious triggering if the orientation and sensitivity setting of the detector is not managed carefully.
The units are graded according to four variations in operating frequency. Each type can be identified by different
colour-coding on the detector label and carton. For reliable operation it is essential that units of the same colour
code do not occupy adjacent positions in open-plan areas or in adjoining rooms (see below).
Blue Yellow
Red Green
Blue Yellow
Red Green
Blue Yellow
Red Green
Note: Should you need to order additional detectors for an existing installation and need specific colour-coded
detectors, please add the following suffixes to the part number: Y = Yellow, B= Blue, G= Green, R = Red. (There
is normally no need to specify the colour codes as orders are dispatched with a suitable colour-code mix.)
Fixing
MLS2401CDR Flush Mount Version - Depth required behind ceiling: 62mm from front flange plus an
allowance for the minimum bend radius of the cable. Sinking box fits into a 89mm diameter hole in ceiling tile or
plasterboard ceiling. To avoid damage to ceiling tile, do not overtighten. No access above the ceiling is
necessary. The unit fits into the housing with a simple bayonet action.
MLS2401CDRSM Surface Mount Version - The housing may be secured to a hard surface or a BESA box.
The unit fits into the housing with a simple bayonet action.
Do not position this product on a pitch narrower than 5m. Do not mount within 0.25m of a luminaire.
Connecting
The MLS2401CDR connects to the LCM via an eight core, RJ45 plug terminated, patch lead. All such patch
leads must be segregated from mains wiring to preserve the detector SELV status that is provided by
the LCM design.
Ready-made patch leads in lengths of 3m, 5m and 10m are available from Ex-Or (see back page for Part
Numbers).
Blue Yellow Blue Yellow
Red Green Red Green
Blue Yellow Blue Yellow
Red Green Red Green
Blue Yellow Blue Yellow
Red Green Red Green
.
Blue Yellow Blue
Red Green Red
Blue Yellow Blue
Red Green Red
Blue Yellow Blue
Red Green Red
Yellow Blue Yellow
Green Red Green
Yellow Blue Yellow
Green Red Green
Yellow Blue Yellow
Green Red Green