TFP480
Page 7 of 12
KEYS
•
ACCEPT SIGNAL KEY
The system LEDs (ALARM, SUPER-
VISORY, TROUBLE) flash to indi-
cate the presence of an unaccepted
alarm, supervisory, or trouble condi-
tion somewhere in the system. The
ACCEPT SIGNAL KEY acknowledg-
es the presence of an alarm, super-
visory, or trouble condition.
By momentarily pressing the AC-
CEPT SIGNAL KEY, the flashing LED
turns steady. The ACCEPT SIGNAL
KEY is used to acknowledge every
abnormal status present in the sys-
tem. For example, if there are two
red alarms and three yellow troubles,
the ACCEPT SIGNAL KEY must be
pressed five times.
The Panel’s tone-alert turns off when
all abnormal conditions are accepted.
•
SIGNAL SILENCE KEY
Pressing the SIGNAL SILENCE KEY
silences the audible notification de-
vices (horns). The Yellow ALARM SI-
LENCED LED lights to indicate that
an alarm is still active even if the au-
dible alarms have been silenced.
•
SYSTEM RESET KEY
Pressing the SYSTEM RESET KEY
directs the Panel to reset all at-
tached devices and clear all accept-
ed alarms, troubles, and supervisory
conditions. All alarms must first be
accepted via the ACCEPT SIGNAL
KEY and all devices must be reset
(that is, normal system air pressure
is re-established).
Note:
After pressing the SYSTEM
RESET KEY, the panel requires ap-
proximately fifteen seconds to clear.
In Case of
Supervisory/
Trouble
Condition
Step 1.
Verify that a fire condition does
not exist.
Step 2.
Close the Main Control Valve
to prevent inadvertent water flow into
the system.
Step 3.
Acknowledge the superviso-
ry/trouble notification by momentarily
pressing the ACCEPT SIGNAL KEY.
Doing so silences the tone-alert.
Step 4.
Determine and correct cause
of supervisory/trouble notification, for
example:
•
Loss of primary 120 VAC power
•
Low battery condition
•
High air pressure
•
System or main control valve closure
Step 5.
Reset the system as soon as
possible.
In Case of
Alarm Condition
Step 1.
Verify that a fire condition ex-
ists and take appropriate action (that
is, evacuate the building and call fire
department).
Step 2.
After the fire is extinguished,
reset the system.
If a fire condition does not exist and pri-
or to resetting the system, silence the
alarms as follows:
•
First, momentarily press the ACCEPT
SIGNAL KEY a sufficient number of
times to stop the tone-alert.
•
Second, momentarily press the SIG-
NAL SILENCE KEY.
System
Resetting
Step 1.
Use the ACCEPT SIGNAL KEY
to accept every abnormal status pres-
ent in the system.
For example, when two red ALARM
and three yellow TROUBLE conditions
are present, the ACCEPT SIGNAL KEY
must be pressed five times. The Panel’s
tone-alert turns off when all abnormal
conditions are accepted.
Step 2.
Silence the alarms by pressing
the SIGNAL SILENCE KEY.
Step 3.
Close the Main Control Valve.
Step 4.
Place the Air Compressor Dis-
connect Switch to the OFF position.
Step 5.
Open the Drain and Flow Test
Valves.
Step 6.
Replace operated sprinklers.
Step 7.
After the system drains com-
pletely, close the Drain and Flow Test
Valves.
Step 8.
Place the Air Compressor Dis-
connect Switch to the ON position and
allow the system to automatically rees-
tablish its normal air pressure of 10 to
14 psi.
Step 9.
Reset the Electronic Control by
pressing the SYSTEM RESET KEY.
Wait approximately fifteen seconds for
the Electronic Control to clear.
A supervisory signal will remain be-
cause the Main Control Valve is still
closed.
Press the ACCEPT SIGNAL KEY to ac-
cept the supervisory signal and silence
the tone-alert.
Step 10.
Slowly open the Main Control
Valve. (Opening the Control Valve too
quickly may result in activation of the
pressure switch.)
The supervisory signal should clear and
the system is now set for service.
NOTICE
After pressing the SYSTEM RESET
KEY, the panel requires approximately
fifteen seconds to clear.
