Specifications

MR-2320 Series Installation and Operation Manual

Mode 6: Pre-action/Deluge, Single Hazard, Not Cross-zoned, Combined Release

Zone Configuration

• Detection Zone -1: Alarm (Hazard Area 1, not cross-zoned)

• Detection Zone -2: Alarm (Hazard Area 1, not cross-zoned)

• Detection Zone -3: Alarm (Hazard Area 1, not cross-zoned)

• Detection Zone -4: Alarm (Hazard Area 1, not cross-zoned)

• Detection Zone -5: Supervisory

• Detection Zone -6: Water-flow.

• NAC -1: Signal, steady on any alarm.

• NAC -2: Supervisory optional.

• RAC -1: Releasing Circuit (Hazard Area 1)

• RAC -2: Releasing Circuit (Hazard Area 1)

Hazard Configuration

• Default Release Timer Value: 0 seconds

• Default Manual Release Delay: 0 seconds (not used)

• Default Abort Delay Type: Standard UL (not used)

• Default Soak Timer Value: 0 seconds (continuous)

NAC Configuration

• Default Escalating NAC code of Hazard Area State:

• Hazard Idle: Off

• Hazard Alert: Temporal

• Hazard Alarm: Temporal

• Hazard Release: Steady

• Default NAC code of Supervisory is 20 BPM.

How the Panel Works in Mode 6

• Activation of any one among Z-1, Z-2, Z-3 and Z-4 changes Hazard Area 1 state into Alarm. Release Timer-1 is

started. NAC-1 turns on at Temporal. Upon the expiration of Release Timer-1, NAC-1 turns on steady. RAC-1

and RAC-2 are activated.

• Activation of Z-5 can be indicated on NAC-2 at 20 BPM, if configured.

• Activation of Z-6 turns NAC-1 steady.

Detection Zones Phantom Zones

Z1 Z2 Z3 Z4 Z5 Z6 Zp1 RT1 Exp

Alm Alm Alm Alm Supv WF Z1+Z2+Z3+Z4

Out1 Signal Steady XXXX X

Out2 Signal Escalating (X)

Out3 Rel. Releasing X

Out4 Rel. Releasing X

RLS TMR 1 Started XXXX

RLS Tmr 1 Interrupted

RLS Tmr 1 Cancelled