FireClass J400REP - Maintenance; Testing the Extinguishment Module

Maintenance
The following operations must carried out regularly.
A Using a damp cloth (DO NOT USE SOLVENTS OF
ANY KIND), remove dust from the Control panel case.
B Using the Test key, check that the LEDs and buzzer
are functioning properly.
C Ensure that the batteries are sufficiently charged and
functioning properly. If not, replace them immediately.
D Ensure that all cables and connections are intact.
E Ensure that there are no unrelated objects inside the
Control panel case.
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Points A and B may be carried out by users.
Points C, D and E must be carried out by qualified
persons only.
Testing the Extinguishment Module
The Extinguishment Module may be tested as descri
-
bed below.
1. With the Control panel set to Access Level 1, acti
-
vate the Extinguishment Module.
2. Check that the Extinguishment Module is working
correctly.
3. Type in the Extinguishment Termination Code
(refer to “Control panel” in the “PROGRAMMING
FROM A PC” section) then press the Disable
Extinguish. button to stop the Extinguishment
Time.
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When the Extinguishment Termination Code has
been entered, 5 beeps in rapid succession will be he
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ard. The Extinguishment Termination Code may only
be entered at Access Level 1. After 20 seconds, the
Extinguishment Termination Code will no longer work
(double beep).
4. Check that the EV Output has been disactivated.
36 Conventional Fire Panels J424/J408
TEMPERATURE (°C) -10 -5 0 5 10 15 20 25 30 35 40 45 50
VOLTAGE (V) 29.0 28.8 28.6 28.2 28.0 27.8 27.4 27.2 27.0 26.8 26.6 26.4 26.2
Table 3 Switching Power Supply Output Voltage chart. To find the Output Voltage using the chart: — select the nea
-
rest value to the Probe temperature on the TEMPERATURE (°C) row; read the respective value on the VOLTAGE (V)
row; adjust the Output Voltage of the Switching Power Supply to the indicated value. For example, if the Probe tempe
-
rature is 22 °C, the Output Voltage of the Switching Power Supply must be set at 27.4 V.
-10-5 0 5 101520253035404550
26,0
27,0
28,0
29,0
VOLTAGE (V)
TEMPERATURE (°C)
a)
27,4
22
Figure 23 Switching Power Supply Output Voltage graph. To find the Output Voltage using the graph: — indicate the
Probe temperature on the TEMPERATURE (°C) axis; draw a line from the temperature value point up to the curve a);
draw a line from the intersection point across to the VOLTAGE (V) axis; adjust the Output Voltage of the Switching Po
-
wer Supply to the resultant value. For example, if the Probe temperature is 22 °C, the Output Voltage of the Switching
Power Supply must be set at 27.4 V.