4
ESL 1500 Series Fire Alarm Control Panel
Optional Zone Expansion and
Communicator Module Installation
Panel Controls
Control Switches
System Reset
Resets control unit, provided the alarm condition has been cleared. Also interrupts power to the alarm initiating circuits of all
zones and to the auxiliary power output. The integral sounder will activate when the System Reset switch is activated.
Sounder Silence
Activating the switch during a trouble condition will silence the integral sounder. When all system faults are cleared, a “ringback”
feature will resound the integral sounder to indicate that the switch is in the silence position. Fault LEDs will remain active until
all faults have been corrected.
Zone Disconnect/Walktest
A three position switch provides for normal, test, and disable functions for each zone. Under standard conditions, no LEDs will
light when the switch is in the “normal” position.
Note:
For maintenance use only! Notify your local fire department and receiving station before operating switch.
Zone Disconnect disables the alarm indicating devices so that service may be performed without sounding an alarm. When a
zone is disabled, zone and system trouble LEDs will light and the integral trouble sounder will activate. An alarm received from
any zone that has not been disabled will activate the indicating devices as normal. The zone disconnect switch is defeated when a
zone has been programmed for waterflow service. See BMB Programming.
Walktest makes it possible for one service person to functionally test initiating devices without having to constantly return to
reset the control panel. When activiated, the walktest feature sounds the indicating devices for approximately two seconds and
then resets the system. Only an alarm from the zone with the walktest activated will reset the system; all other zones will
function normally. To silence the indicating devices during the walktest mode, see BMB Programming.
24 VAC
AC IN
24 VDC
BATTERY IN
ZONE
1
TROUBLE
SUPERVISORY
LOW/ NO AC POWER
LOW/ NO BATTERY
GROUND FAULT
INDICATING 1 TROUBLE
INDICATING 2 TROUBLE
SYSTEM
POWER LIMITED
NORMAL
NORMAL
RESET
SOUNDER
SILENCE
SYSTEM
TROUBLE
ZONE
ALARM
WALKTEST
NORMAL
DISCONNECT
ZONE
1
AC
POWER
NOT USED–8
NOT USED–7
NOT USED–6
ZONE 2 SUP.–5
ZONE 1 RA–4
SILENT WALKTEST–3
ZONE 1 WATERFLOW–2
ALARM VERIFICATION–1
INDICATING
1
INDICATING
2
Z1RA– COM NO NC COM NC NO
TROUBLE RELAY ALARM RELAY
CASE
GROUND
Z1B+ Z1A+ Z1A– Z1B–
AUX
24VFWR
SYS
GND
FIRE
DRILL
ZONE 1
1
SENTROL, INC.
10831 SW Cascade Boulevard
Portland, Oregon 97223
SYSTEM
+15VDC
B–
B+
A+
A–
B–
B+
A+
A–
12345 SW Leveton Dr.
Tualatin, OR 97062
Figure 2. ZEM or LEM Installation
LEM
ZEM
ZEM
Figure 3. Window Label Installation
1505 window label shown
The window label must be
changed when expanding
zones.
Summary of Contents for 1501
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