43
10
FREEZER COMPONENTS
Control panel
1. Buzzer stop key (BUZZER):
To silence the audible alarm under alarm condition, press this key.
The buzzer during alarm test cannot be silenced by this key.
2. Set key (SET):
Temperature setting mode is led by pressing this key and the changeable digit is
flashed. By pressing this key again, the setting is memorized. The set mode returns to the
temperature display mode automatically when 90 seconds has passed without any key operation. Refer
to page 14 for details.
3. Digit shift key ( ):
Pressing this key in the setting mode causes the changeable digit to shift. Key
lock is available by pressing this key for more than 5 seconds in the temperature display mode. Refer to
page 14 for details.
4. Numerical value shift key ( ):
Pressing this key in the setting mode causes the numerical value to
shift. ON-OFF of key lock can be selected by pressing this key in the key lock mode. By pressing this
key for more than 5 seconds in the temperature display mode leads setting mode for alarm temperature
and alarm resume time. Refer to page 14 and
15 for details respectively.
5. Digital temperature indicator:
This indicator shows the present chamber temperature or set
temperature.
6. Alarm lamp (ALARM):
This lamp is flashed during alarm condition.
7. Alarm test key (ALARM TEST):
To check the alarm system during freezer operation. Pressing this
key with the battery switch ON gets the alarm lamp to flash, the remote alarm to operate, and the buzzer
to sound.
8. Door check lamp (DOOR):
This lamp lights when the door is open.
9. Filter check lamp (FILTER):
This lamp lights when the excessive dust is accumulated on the
condenser filter. When this lamp lights, clean the condenser filter following the procedure on page 22.
10. Battery check lamp (BATTERY):
This lamp lights to recommend the battery replacement. This
lamp blinks when a fan motor is maintained. For the replacement, consult Sanyo sales representative or
agent.
11. Status monitor lamp (STATUS):
This lamp lights when environmental condition or status gets
worse or the unit is out of normal operation.
12. Status key (STATUS):
By pressing this key in the event of the status monitor lamp ON, the status
code is displayed on the temperature indicator. This key is not effective when the freezer is running
normally. See page 19 for details.
1
ULTRA LOW
BATTERY
STATUS
FILTER
ALARM
DOOR
TEMPERATURE
BUZZER
ALARM
TEST
STATUS
SET
7
12
2
3
4
5
10
11
9
6
8
Summary of Contents for MDF-U53V
Page 8: ...5 Dimensions ...
Page 12: ...9 Components on PCB ...
Page 16: ...13 㩷 Wiring Diagram 㩷 ...
Page 17: ...14 ...
Page 18: ...15 㩷 Circuit Diagram 㩷 ...
Page 44: ...41 8 FREEZER COMPONENTS 8 1 6 2 4 12 15 inside 14 5 3 11 9 10 7 5 inside 17 18 16 13 19 ...
