Controller Schematic; Alarm Connections - Accurex XRRS Installation, Operation And Maintenance Manual

Controller Schematic

On the controller, there are two rows of LED indicators
next to the X (inputs) and two rows of LED's on the Y
area (outputs).
LED Input
Label Function
Hose in place
Hose
X0
Switch
Hose disconnected
When switch is depressed
Reset
X1
Switch
Switch not pressed
Pressure okay
Pressure
X2
Switch
Pressure failure
Servicing unit
Service
X3
Switch
Normal operation
Both low temp thermostats
Low
below 150°F
X4 Temperature
Either thermostat at or above
Switch
150°F
Alarms are configured for
normally closed (jumper
Remote
installed)
X5 and
Local Alarms
Alarms are configured for
normally open (no jumper)
High temperature thermostat
High
below 190°F
X6 Temperature
High temperature thermostat
Switch
at or above 190°F
LED Output
Label Function
Low gas switch activates OR
hose switch activates OR high
Output for
Y0
temperature switch activates
Local Alarm
Normal operation
Loss of pressure AND high
Output for
temperature (fire suppression
Y1 Remote
discharge)
Alarm
Normal Operation
Alarm condition
Normal
Y2
Condition
Normal condition
When controller turns the fan
on
Y3 Fan
When controller is not running
the fan
When power is being set
to gas/electric disconnect
Power
(normal operation)
Y4
Disconnect
When power is lost to gas/
electric disconnect
Horn is on
Y5 Horn
Horn is off
* The LED's state depends on whether the alarm contacts are
set up for normally open or normally closed. These contacts
are set up for normally open from the factory (LED's illuminate
during alarm). To configure the fire contacts for normally
closed state (LED's illuminate on no alarm), a jumper must
be placed between two terminals. Please see page 14 for
additional information.
LED
Scenario
State
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
LED
Scenario
State
On*
Off*
On*
Off*
On
Off
On
Off
On
Off
On
Off
RUN
Status display
X
Input/output
display
Y
The controller's operating system is designed to
enhance the functionality of the unit and the safety of
the cooking environment.

Alarm Connections

Alarm Outputs: The other function of the controller
is to report alarms from the system either for a system
fault or as a result of a system discharge. Refer to
Fire Alarm System Connections on page 14 in this
installation manual for information on how to connect
the alarm outputs.
Output Y1 and common C1 are configured to close with
the discharge of the extinguisher tank. This condition is
determined by the controller with the low pressure input
from the switch and a high temperature condition from
the 190°F rated thermostat. Both conditions must be
present in order for this output to trigger.
Note that the microswitch outputs are dry contact type,
rated for low voltage, and can be normally open (NO) or
normally closed (NC), with a common. Therefore do not
produce any current or voltage output.
NOTE
Pressing the reset button will not turn off alarm. Unit
needs to be recharged to reset alarm.
Service Switch: The black switch next to the controller
and internal audible alarm is the service switch. It can
be switched on or off. When it is switched to on, the
remote alarm and local
alarm are deactivated. Its
purpose is to allow service
to be conducted and
components tested without
setting off the alarm. Once
testing or service is done,
turn the service switch to
off for normal operation.
NOTE: LED will flash orange
and green.
PROG. ERR.
0 3
4 7
0 3
COM X1 X3 X5 X7
4 5
L N X0 X2 X4 X6
RUN PROG. ERR.
0 3
X
4 7
0 3
Y
4 5
Panasonic
RUN
FP-X C14
PROG.
min. max.
V0 V1
0V Y0 Y1 Y2 Y3 Y5
24V C0 C1 C2 C3 Y4
Service Switch
in the OFF position
Fire Ready Hood 21