Specifications

Programming and Operating 4
SHM80001
SAFETY HI-TECH
Quaestor-SZU Releasing Fire Control Panel - Installation and Operation Manual
Revision E03.04
53 of 155
Relay Operation
The Quaestor-SZU Releasing Fire Control Panel provides volt free changeover relay contacts for local control and
signalling. The relay contacts are rated for switching signalling circuits only and the maximum ratings should not be
exceeded under any circumstances.
Reference Appendix A, Specifications for relay ratings and operating characteristics.
Relays of the Quaestor-SZU Releasing Fire Control Panel are common, not programmable and include:
Trouble Relay The trouble relay is normally energized and will de-energise during trouble conditions,
including the total loss of power.
The Trouble Relay can be activated or de-activated during the reset command. Reference
Reset of this section for setting the operating condition of the Trouble Relay during
Reset activation.
Local Fire Relay The local fire relay energizes during activation of a fire condition on any zone or by pressing
the sound alarm button in level 2 on the fascia. The relay remains activated until the alarm is
silenced or the fire control panel is reset.
Fire Relay The fire relay energizes during activation of a fire condition on any zone or by pressing the
sound alarm button in level 2 on the fascia. The relay remains activated until the fire control
panel is reset.
1st Stage Alarm The first stage alarm operates during activation of a zone that has been configured to
contribute to the releasing decision and de-activates when the fire control panel has been
reset. This relay also operates during activation of the manual release switch.
2nd Stage Alarm The second stage alarm relay operates when the fire control panel enters the activated
condition and de-activates when the fire control panel has been reset from the released
condition. The fire control panel can enter the activated condition and operate the second
stage relay when the releasing countdown timer has started.
Extract Relay The extract relay operates when the Ac option is selected at access level 2. This process
vents releasing gases from a room and prevents gases from being vented during discharge.