ATM AGB02 Installation And Maintenance Instructions

INSTALLATION AND MAINTENANCE INSTRUCTIONS
AGB02
Fire Strobe Light

Specifications

Voltage Range:
Power Consumption:
Flash Frequency:
Operating Temperature:
Brightness:
IP Rating:
Standard:

General Description

AGB02 Fire Strobe Light utilizes super bright LEDs which generates a
high-intensity light, visible from all sides of the lens to provide a visible
notification signal for the purpose of life safety and property protection.
It is ideal to be installed at hotels, apartments, hospitals, commercial
buildings, residential buildings, shopping malls or wherever visible
alarms are required.
Having considered power saving for the fire alarm system, we adopted
the best quality LEDs, which consume less current while maintaining
the brightness comparable to the traditional Xenon strobe does.
Besides, customers can also save on material costs by slashing the
battery and the battery charger size. For facilitating the wiring work,
our strobes can achieve self synchronization through power cables
and no additional signal cables or equipment are required.
NOTICE: This manual shall be left with the owner/user of this equipment.

Fire Alarm System Considerations

Power Supply Considerations

Panels typically supply DC filtered voltage or FWR (full-wave
rectified) voltage. The system design engineer must calculate the
number of units used in a zone based on the type of panel supply. Be
certain the sum of all the device currents do not exceed the current
capability of the panel. Calculations are based on using the device
current found in the subsequent charts and must be the current
specified for the type of panel power supply used.

System Wiring: Self-Synchronized Devices

Figure 1. Strobes powered in tandem by a 2-wire circuit:
(+)
(+)
S
FACP
T
or R
O
MODULE
B
E
(–) (–)
(+)
To next
device
(–)
or EOL
DC or Full-Wave Rectified 24-volt models – 18 to 28 volts
35mA 1.5W Max
1-2.5 Hz self-Synchronized
-10° C to 65° C
2
120 cd/m
IP54
Clause 9.7 of BS5839, EN54-23: 2010, HKFSD circular 4/2001, UL1638
(+) (+)
S S
T T
R R
O O
B B
E E
(–) (–)
sticker
jumpers
+24V GND
From:
(+)
FACP, module
(–)
or previous
device

Wire Sizes

The designer must be sure that the last device on the circuit has sufficient
voltage to operate the device within its rated voltage. When calculating the
voltage available to the last device, it is necessary to consider the voltage
drop due to the resistance of the wire. The thicker the wire, the less the
voltage drop. Generally, for purposes of determining the wire size necessary for
the system, it is best to consider all of the devices as "lumped" on the end
of the supply circuit (simulates "worst case").
Typical wire size resistance:
18 AWG solid: Approximately 8 ohms/1,000 ft.
16 AWG solid: Approximately 5 ohms/1,000 ft.
14 AWG solid: Approximately 3 ohms/1,000 ft.
12 AWG solid: Approximately 2 ohms/1,000 ft.
Example: Assume you have 10 devices on a zone and each requires 50
mA average and 2000 Ft. of 14 AWG wiring (total length=outgoing +
return). The voltage at the end of the loop is 0.050 amps per device x
10 devices x 3 ohms/1,000 ft. x 2000 ft =3 volts drop.
The same number of devices using 12 AWG wire will produce only 2 volts
drop. The same devices using 18 AWG wire will produce 8 volts drop.
Consult your panel manufacturer's specifications, as well as the operating
voltage range to determine acceptable voltage drop.
Note: If class "A" wiring is installed, the wire length may be up to 4 times
the single wire length in this calculation.

Flash Rate Selections

Strobes are factory set for 1.5Hz (90 flashes per minute). Four frequencies
may be selected using the jumper plugs located on the printed circuit board.
You can discover the sticker to find the jumpers.
Figure 2. Jumper Setting
E
The right jumper is plugged: 1Hz (60 flashes per minute)
O
L
No jumper is plugged: 1.5Hz (90 flashes per minute)
The left jumper is plugged: 2Hz (120 flashes per minute)
Both jumpers are plugged: 2.5Hz (150 flashes per minute)
NOTE: Always power down devices before setting jumpers.
1 AGB02-25-00