Specifications

MR-2320 Series Installation and Operation Manual
25
System Checkout
Before turning the power “ON”
To prevent sparking, do not connect the batteries. Connect the batteries after powering the system from the main
AC supply.
1. Check that all modules are installed in the proper location with the proper connections.
2. Check all field (external) wiring for opens, shorts, and ground.
3. Check that all interconnection cables are secure, and that all connectors are plugged in properly.
4. Check all jumpers and switches for proper setting.
5. Check the AC power wiring for proper connection.
6. Check that the chassis is connected to EARTH GROUND (cold water pipe).
7. Make sure to close the front cover plate before powering the system from main AC supply.
The best way to check out a panel first is to not connect any field wiring. Power up the panel with an end of line. The
panel should be free of trouble. Then connect one circuit at one time. If a trouble occurs, correct the fault then
continue the field wiring.
Power-up procedure
After completing the System Checkout procedures outlined above,
8. Power up the panel. The "AC ON" green LED and the “Common Trouble” LED should illuminate, and the
buzzer should sound. Press the “System Reset” button. Since the batteries are not connected, the trouble
buzzer should sound intermittently and the common trouble LED should flash.
9. Connect the batteries while observing correct polarity: the red wire is positive (+) and black wire is negative (-).
All indicators should be OFF except for normal power "AC ON" green LED and green LED I4 (below the
TROUBLE relay at left bottom of board).
10.Configure the Fire Alarm Control Panel as described in the Configuration section.
Troubleshooting
Note: Green LED I4 is illuminated when the system is normal. This LED indicates that the trouble relay is in
normal standby condition.
Symptoms Possible Cause
Circuit
Trouble
To correct the fault, check for open wiring on that particular circuit loop or if the Circuit
Disconnect Button is active. Notes: (1) Bypassing a detection circuit or signal circuit will
cause a system trouble (off-normal status); (2) Bypassing a releasing circuit will cause a
supervisory signal.
Remote
Trouble
Remote Trouble will be indicated on the main panel display for any failure reported by,
or failure to communicate with a remote annunciator or other remote device.
Ground Fault
This panel has a common ground fault detector. To correct the fault, check for any
external wiring touching the chassis or other Earth Ground connection.
Battery
Trouble
Check for the presence of batteries and their conditions. Low voltage (below 20.4V) will
cause a battery trouble. If battery trouble condition persists, replace batteries as soon
as possible.
Common
Trouble
If only a common trouble is indicated on the main panel and none of the above
confirming trouble indicators are on, check the following for possible fault:
• Check for any missing interconnection wiring.
• Check for any Module missing that was part of the Configuration.
• Check for improperly secured cabling.