Installation manual

EMS 5000 FIREPOINT

INSTALLATION MANUAL, ISSUE 3.0 – 16/08/10

12.5 Combined Sounder Sensors

Ensure that all sounder sensors are sited in accordance with the survey and design

details and that, wherever practical, the red LED faces the main entrance to the room.

The sounder sensor is shown in Figure 17 and consists of two separate sections.

The mounting plate is shown in Figure 18 and can be removed by turning the mounting

plate whilst holding the sounder/sensor section.

Figure 17 Figure 18

The mounting plate will now be available for fixing to the ceiling. Ensure that the main

section is suitably stored so as to prevent the possibility of accidental damage.

Fix the ceiling mounting plate to the ceiling using suitable fixings and fasteners. A

minimum of two mounting holes must be used. It is important that fastener heads are

flush or sub-flush with the internal surface of the ceiling mount, to avoid the risk of

damaging the head unit.

Important Notice:

To all installers and commissioning engineers. The EMS Combined Sounder Detectors

are supplied with their sensitivities set to a standard sensitivity setting. The detectors

switch setting and their relevant sensitivity comparisons are shown below:

• Optical Sensor Sounder (53-5191)

The Optical Sounder Sensor is capable of 4 different sensitivity settings as shown below.

Level 1 Level 2 Level 3 Level 4

Smoke Sensitivity %

per M

High

1.6%

Std 2.3% Low 3.0% 3.0% +

AVF*

Switch Settings 1 & 2 Off

1 Off 2 On 1 On 2 Off 1 & 2 On

*AVF = Accelerated Alarm Verification to prevent false alarms due to transient smoke.

• Heat Sensor Sounder (53-5192)

Rate Of

Rise

Standard

Sensitivity

Medium

Sensitivity

Low

Sensitivity

Temperature 58ºC 58ºC 70ºC 82ºC

Switch Settings 1 &2 Off 1 Off 2 On 1 On 2 Off 1 & 2 On

*AVF = Accelerated Alarm Verification to prevent false alarms due to transient smoke.

Please Note:

The Final commissioning, system sensitivity detection settings and hand over of the

radio fire system to the end user is the responsibility of the fire installation contractor.