TREND OCC-U User Manual

Installation Instructions

OCC/U

Ultrasonic Occupancy Detection System

UNPACKING THE OCC/U

All versions are supplied individually boxed with installation instructions.

INSTALLATION Mechanical

As the mechanical installation is different for each detector type, be sure to read each section carefully, and select the appropriate procedure for your installation.

OCC/UD/DC

The detectors should be mounted in the ceiling at a height of 2.4 to 3 m, in approximately the centre of the area that is to be monitored.

(1) Ensure that a standard 25 mm single gang

sinking box is fitted into the ceiling at the correct location.

(2) Insert a length of 3 core cable into the

sinking box and connect the three wires to the screw terminals on the back of the detector as shown in electrical section.

(3) Insert the detector into the sinking box, and

tighten the two screws.

OCC/U Ultrasonic Occupancy Detection System Installation Instructions TG101684 Issue 1/C 9/10/96

OCC/U ULTRASONIC OCCUPANCY DETECTION SYSTEM Installation Instructions

AAAA

INSTALLATION (continued)

OCC/UDA/DC

The detector should be mounted in the ceiling at a height of 2.4 to 3 m. If surface mounting, the detector’s ‘viewing’ angle should be carefully considered before fixing. When ‘flush mounted’ the viewing angle can be optimised after fixing. The housing can be surface mounted using the back-box provided, or ‘flush-mounted’ in a ceiling tile using the rings provided.

If flush mounted:

(1) Make a 70 mm diameter hole where the

detector is to be mounted.

(2) Push out the cable entry at the top of the

detector.

(3) Pass a 3-core cable through ring B and the

hole in the ceiling tile. Ring B should be above the ceiling.

(4) Undo the screws holding the two halves of

the detector together and separate them.

(5) Pass the cable through the cable entry in

the back-box and connect as shown in the electrical section.

Flush Mounting diagram

Ring B

Push

back-box

Ring A

(6) Re-assemble the detector with Ring A

sandwiched between the two halves.

(7) Pass the tabs of Ring A through the ceiling

hole and snap Ring B into place.

(8) To remove detector simply rotate and pull

down.

If surface mounted:

(1) Make a hole in ceiling and push a 3-core

Surface Mounting diagram

50 mm

cable through.

(2) Undo screws holding the two halves of the

detector together and separate them.

(3) Fix back-box directly to surface using

2 screws as shown in diagram right.

(4) Pass the cable through the cable entry in

the back-box and connect as shown in the electrical section.

(5) Re-assemble the detector.

OCC/U Ultrasonic Occupancy Detection System Installation Instructions TG101684 Issue 1/C 9/10/96

+ 2 hidden pages

TREND OCC-U User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual