Chapter 4: Testing and troubleshooting
54
SIGA-REL Technical Reference Manual
Connecting the releasing solenoids
Caution:
Do not connect the releasing solenoids until the system has been
programmed and tested, and the Signature loop controller and SIGA-REL have
reached their normal state. Failure to follow the instructions given below can
result in unexpected release of the fire suppression agent.
Follow these steps before you connect the releasing solenoids.
Before you connect the releasing solenoids:
1. After connecting all devices to the Signature data line (including the SIGA-
REL), verify that you have downloaded the database to the correct panel and
Signature loop controller.
2. Using your SDU or CU, browse to the Signature Series status tool. Verify that
the loop is in its normal, inactive state.
In the 2-SDU choose Tools > Signature Series > Status, then select the
Current Status tab. All LEDs should be off.
In the 3-SDU choose Tools > Signature Series > Status / Diagnostics, then
select the Current Status tab. All LEDs should be off. Note that the Device
Supervision LED may take up to 20 minutes to extinguish, depending on the
number of devices connected to the Signature loop.
In the QS-CU choose Configure > Cabinet, then select the Cards tab. Select
the Signature loop controller card, then choose Configure to open the
Signature Series Configuration Form. Select the Status tab. In the Mapping
Progress group, the Expected and Actual numbers should match.
3. Check the DS1, DS3, and DS7 LEDs on the SIGA-REL to make sure that it is
not active. There should be no red or yellow LEDs. Check the output
terminals with a voltmeter prior to connecting the releasing solenoids. The
voltage should be 10 VDC or less.
When all yellow and red LEDs are off and all output voltages are 10 VDC or
less, it is safe to connect the releasing solenoids to the RELA-EOL relays.
Note:
When testing the system, make sure that it is safe to do so and that testing
will not result in the release of agent.
