Door Holder Power; Constant Power; Resettable Power; Sounder Sync Power - Honeywell 6820EVS Installation And Optimization Manual

LS10144-001SK-E
1. Wire the circuit(s) that will be used for auxiliary power.
2. Configure the auxiliary power output through programming (see section 9.5).

4.16.3.1 Door Holder Power

Door holder power is intended for fire door applications. When there are no fire system alarms in the system and
the panel has AC power, door holder circuits have 24 volt power present at their terminals. Any fire system alarm
will cause power to disconnect. Power will be re-applied when the fire system is reset. If AC power is not
present, the auxiliary door holder power will be disconnected to conserve the battery backup. When AC power is
restored, power is immediately restored to the door holder circuits.

4.16.3.2 Constant Power

Use constant power for applications that require a constant auxiliary power source. Power is always present at
Constant circuits.

4.16.3.3 Resettable Power

Resettable power is typically used to power beam detectors, flame detectors and conventional 4-wire smoke
detectors. For circuits selected as Resettable, 24-volt power is always present at the terminals unless a system
reset occurs. If a system reset occurs, power is disconnected from the terminals for 30 seconds, then re-applied.

4.16.3.4 Sounder Sync Power

Sounder Sync Power continuously outputs the System Sensor synchronization pattern and is intended for use
with B200S sounder bases.

4.17 On-Board Relays (Conventional)

The control panel has two built-in programmable relays and a built-in trouble relay. All relays are Form C rated
at 2.5 A @ 24 VDC.
4.17.1

Trouble Relay

The control panel has a dedicated Form C trouble relay built into terminals labeled TROUBLE. The relay
provides a normally open and a normally closed contact. The trouble relay will deactivate under any trouble
condition.
Note: The NC contact is relay contact that is closed when the panel has power and there are no trouble condi-
tions.
Figure 4-53 Location of Conventional Relay Circuits
4-40
Control Panel Installation