14
Operation, Installation, and Maintenance Manual
LW-401
1. To select the proper Retard/Reset time,
begin with the Alarm Verification time
required by the system owner or local
authority.
2. Subtract the built-in 6 second system
delay. Make sure that the result is equal
to, or greater than the Detector Start-up
Delay from the Table below. If not, the
Alarm Verification Time must be length-
ened, or a new detector must be selected
for the installation.
3. Select the Retard/Reset time from the
programming instructions on page 18
which is closest to your result.
Example:
1. Alarm Verification Time required
by building owner =
30 seconds
2. Subtract the built-in, 6 second
system delay
-6 seconds
3. Result =
24 seconds
Select a Retard/Reset Time of 25 seconds from the
table on page 18 of the programming instructions.
NOTE: All detectors in the table below, except the
8854/8843, can be used for this application.
The 8854/8843 Delay Startup is longer than
the Retard/Reset time and therefore would
cause the Alarm Verification time to exceed
30 seconds.
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5
Set System Password (Program Level 7)
The System Password consists of four digits
using the four system keys: ACK, RESET,
DRILL, SILENCE. The password can be any
4-digit sequence of these keys.
Set AC Fail Signal Delay (Program
Level 8)
Underwriters Laboratories, Inc. requires all
fire protection systems which communicate
to a Central Station to delay the transmission
of AC Fail Trouble Signals by a predeter-
mined length of time. The system default is a
6 hour delay. The other option, no delay, is
used when the system does not report to a
Central Station.
Enable System Option Cards (Program
Level 9)
The LW-401 system has the capacity to
support the following option cards:
• Either the LWZR-8 Relay module or the
LWCT-1 Municipal Tie module
plus
• Either the LWZE-4A or the LWZE-8A
Zone/Output Expander module
plus
• 1 or 2 Model LWRA-8B/W Remote
Annunicators
The optional modules must be enabled in
the LW-401 program or they will not function.
One Person System Test (Test Level 1)
This feature allows one person to test the
system by disabling it, activating initiating
devices, and listening for the building
audibles to sound. After the notification
appliances sound, the system will reset and
wait for the next device to be activated.
The system can also be tested without the
notification appliances. A second person
must watch the system display for indication
of activated zones. If the system is left inac-
tive during the test, the system will reset to its
normal operating mode after 20 minutes.
NOTE: Supervisory zones will appear as alarm
zones during this test and the zone
alarm LED will turn on.
