Specifications

Installation 3
SHM80001
SAFETY HI-TECH
Quaestor-SZU Releasing Fire Control Panel - Installation and Operation Manual
Revision E03.04
35 of 155
Troubleshooting
Troubleshoot the Quaestor-SZU Releasing Fire Control Panel when conflicts exist after installing or
configuring. Monitor the lower fascia indicators of the fire control panel to determine the cause of the trouble
condition. The lower indicators of the fascia are visible after opening the cabinet-door of the Quaestor-SZU
Releasing Fire Control Panel.
The figure below illustrates lower fascia indicators of the Quaestor-SZU Releasing Fire Control Panel:
Figure 1-13
Troubleshooting with Lower Fascia Indicators
Indicator Description
Mains Fail The 230V AC supply is not present and the system is running on standby batteries.
If there is not a power cut, check the fuse of the main terminal block if there has not been
a loss of source power.
Batt Fail The standby battery has become disconnected or that the charging circuit of the fire
control panel has failed. Check that both batteries are connected and linked together.
Test battery. Disconnect battery and ensure that 28 Volts can be measured on battery
charger leads.
CPU Trbl The central processor unit has failed to execute code and has been re-started by the
system watchdog. The watchdog reset switch must be pressed to clear the CPU trouble
condition. Press watchdog reset. If system does not return to normal then the panel is
probably damaged and needs the circuit board replaced.
Aux 24V Trbl The Aux 24V and R0V terminals provide a 500 milliamp, 24V DC power supply for power
fire alarm ancillary equipment. This LED indicates that fuse protecting the R0V output
has operated and the rating of this output has been exceeded. The fuse is a self
resetting type and the supply will resume when the trouble condition is removed.
Batt Low Illuminates when the system is running on batteries and the battery voltage is between
21.5 V and 20.5 V (the minimum battery voltage).
Comms Trbl Communication has been lost with a remote annunciator or Ancillary board. Check for
comms trouble at all remote annunciators and ancillary boards to identify the source of
the problem. The comms trouble LED will be accompanied by the front panel Flooding
zone trouble LED to indicate a common trouble condition within the releasing agent
section of the fire control panel.
Earth Trbl Part of the system wiring is connected to earth. Remove all system wiring and re-connect
cables one at a time until the earth trouble returns. This will indicate which cable the
earth trouble is present on.
Low
Pres. Ta
TeExting. ReleaseModeMan.Rel.Abort
Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.
NAC3NAC1 NAC2Sys.FuseEarth
Trbl.Trbl.Trbl.Trbl.Trbl.
Comms
Fail
Batt.
Trbl.
Aux.24V
Trbl.
CPU
Mains
Fail