MARVEL Scientific 6CARFM - Manual (Page 8)

USING YOUR MICROSENTRY™ REFRIGERATOR CONTROL
• Temperature Sensor Fault: If the controller
detects that the temperature sensor is
not properly functioning, a temperature
sensor alarm will sound. “E1” will flash on the display, and an
alarm will sound. Please call AGA MARVEL Customer Service or
your dealer if this error code is displayed.
• Condenser Needs Cleaning: When the refrig-
erator has reached the recommended amount
of run time for a condenser cleaning, “cL”
will flash on the display as a reminder to clean the condenser.
To clear the alarm:
1) Press and quickly release the SET key 7 times.
“cnd” will be displayed on the screen.
2) While “cnd” is displayed, press and hold the SET key.
The display will show the number of weeks the con-
denser has been operating.
3) Continue to hold the SET key, then press and release the
ON/OFF key. The number shown on the display will be
reset to 00.
4) Release the SET key.
5) The display will return to normal operation after a few
seconds with no key presses.
See the “care and cleaning” section for cleaning instructions.
Alarm Mute
Press any key to mute the audible portion of an alarm.
NOTE-This action will only mute the alarm. If the condition that
caused the alarm continues, the alarm code will continue to flash
and will sound for 20 seconds every 60 minutes.
Turning Refrigerator Off
To turn refrigerator off, press and hold “ON/OFF” button for
three (3) seconds. “OFF” will appear on the display.
Additional MicroSentry™ Features
Refer to Appendix A for details on additional features available.
Orange Wire / NC
Blue Wire / COM
Yellow Wire / NO
Remote Alarm Connections
Maximum Contact Rating: 125-250V 5A
Remote Alarm Relay
Remote Alarm Interface
The auxiliary output of the control is programmed to monitor
alarm conditions. An outboard relay connected to the auxiliary
output provides a set of dry contacts which are designed to be
used as a remote alarm monitoring interface. Alarm functions
monitored are Door Ajar, High/Low Temperature, and Power Fail-
ure. NOTE: Intentionally turning the unit off is not an alarm con-
dition. It is recommended the remote monitoring device(s) have
an uninterruptable power source. (See Figure 9 and 10 below).
NOTE
However it must be noted the alarm will continue to sound until
the alarm condition has been rectified.
Figure 9
8
Blue
Yellow
DC Power
Supply
+ -
Buzzer
Figure 10