Rosslare SA-64-2W Installation Manual

SA-64-2W
2-Wire Photoelectric Smoke Detector
Installation Manual

1. Introduction

The SA-64-2W is a 2-wire conventional smoke detector for fire control
panel of type Notifier SFP2404.
The smoke sensor unit can easily be plugged into or detached from the
wired base unit (AS-64B-2W) for cleaning and maintenance purposes.
The sensor chamber is engineered to sense smoke by a wide range of
combustion sources. The chamber is well protected and proofed from
insects and dust contamination. A LED indicator on the sensor unit
shows the operating status and Alarm mode.
The SA-64-2W smoke detector has a low profile and a professional and
trendy appearance.

2. Technical Specifications

2.1

Electrical Characteristics

System Voltage (Nominal) 24 VDC
Min. Operating Voltage 8.5 VDC
Max. Operating Voltage 30 VDC
Avg. Standby Current 30 µA
Sensitivity EN: xx dB/m
UL: 0.5~4% /ft (2.5% /ft normal)
Alarm Type: current, latch
Rate: 35 mA
Remote Annunciation Type: N.O.
Rate (during alarm): 12/24 V, 35/70 mA max
2.2

Environmental Characteristics

Environment Indoor
Operating Temperature Range 0°C to 37.8°C (32°F to 100°F)
Storage Temperature Range -20°C to 70°C (-4°F to 158°F)
Operating Humidity Range 0 to 95% RH (non-condensing)
2.3

Physical Characteristics

Weight 120 g (4.23 oz)
Dimensions (L x W x H) 121.9 x 121.9 x 34 mm (4.8 x 4.8 x 1.34 in.)
Compliance with Standards EN54-7: 2001 +A1+A2, UL268
EC certificate number: 0843-CPD-XXXX

3. Installation

3.1

Choosing a Mounting Location

A smoke detector should be installed according to NFPA (National Fire
Protection Association) Standard 72. For complete coverage in
residential units, smoke detectors should be installed in all rooms, halls,
storage areas, and basements. At the least, one detector should be
placed on each floor and in each sleeping area.
Install smoke detectors as close to the center of the ceiling as possible
or at least 10 cm (4 inches) away from any wall or corner.
Do NOT locate smoke detectors at the top of peaked or gabled
ceilings; the dead air space in these locations may prevent the unit
from detecting smoke. Avoid areas with turbulent air flow such as near
doors, fans or windows. Rapid air movement around the detector may
prevent smoke from entering the unit and affected the accuracy.
Figure 1: SA-64-2W
2.4

Modes of Operation

Operation Mode Red LED flash indication every 10 seconds
Alarm Mode The detector sends an alarm signal to the Fire
Control Panel. The LED remains on.
Trouble Mode Trouble is detected by Fire Control Panel (if the EOL
resistor is removed)
2.5

Signaling and Events

Tamper Event When the sensor is disconnected from the base or
the base unit from the ceiling.
Signaling Type Red LED on detector
Report Types Alarm, Tamper, Remote Annunciation
Alarm Report:
•
•
•
3.2

Smoke Detector Limitations

 Smoke detectors will not sense a fire if the smoke does not reach
the sensor.
 Some smoke detectors cannot easily be seen from every location.
Connect a remote announcement light that can be seen more
easily from other parts of the house.
Smoke from a slow fire rises slowly and may not reach the smoke

detector until the fire gets bigger.
 To keep your smoke detectors working properly, be sure to
maintain the unit according manufacturer's recommendations and
UL and NFPA standards
1
Alarm Report – The detector announces an
alarm via the alarm annunciation terminal. The
event ends only by cutting power from the
panel momentarily.
Tamper Report – If detector is removed or line
was cut. Use EOL (depending on panel request)
according to Figure 4 in Section 3.5.
Remote Annunciation Report – GND on output
during event. The event ends only by cutting
power from the panel momentarily.