18
There are two automatic defrosting periods controlled by the controller.
1.Periodical Defrosting
The evaporator is embedded with electric heaters. During normal cycle off , the heaters are powered
to raise the evaporator above 0
℃
to thaw out the ice. There is no impact to the refrigerator
temperature during this time.
2.Forced Defrost
When the ambient condition is severe to allow excessive moisture enter the refrigerator, the
refrigerator will automatically initiate a forced defrost cycle. Once the defrost cycle is completed, the
unit will resume normal operation. During the forced defrost time frame, it is expected to have the
refrigerator temperature rise by about 1 to 2
℃
.
Automatic Defrosting
Refrigerator temperature recorder of 6-inch standard panel is standard for our products(except HXC-
106/158) to record the temperature change in box.
•Installation and Operation
In order to operate and use the recorder in a right way, please follow the steps below:
1. Open the door of recorder. You can see the recorder;
2. Switch on the 9V DC-battery on the right corner of the recorder. The battery is the emergency
power supply for the recorder;
3. Examine the recording paper. If it needs to be changed, please change the recording paper
according to the operation steps in P20;
4. Pull off the plastic cap from recording pen and close the door of recorder
The recorder will not operate before the temperature in the box reaches the recording
scope.
Temperature recorder
Caution
23
HXC-1308/1308B
SN.
Alarm items
Initiation of Alarm
Buzzing
Light
fl ashing
Display
requirements
Note
1
Over
temperature
alarm (high
and low
temperature
alarm)
When the temperature of
upper or lower temperature
measurement box is
warmer than the high alarm
set point, the alarm starts.
When the temperature
of the upper and lower
temperature measurement
box is lower than the low
temperature alarm set point,
temperature alarm starts.
1Hz
Continuously
Buzzing
Alarm light
fl ashes
Display actual
temperature
Remote alarm contacts
reverse and audible
alarm starts. Remote
alarm can be cancelled
after pressing “Silence”
button. If the alarm
condition persists after
30 minutes, the remote
alarm and audible
alarm resume.
2
Power failure
alarm
When there is a loss of
AC power to the unit or
the power switch is in Off
position, the power outage
alarm will trigger. The
rechargeable battery will
power the display and alarm
system.
1Hz
Continuously
Buzzing
The power
indicator lights
of alarm light
fl ash at the
same time
Alternatively display
the upper and lower
temperature in the
measurement boxes
for 5 seconds. The
screen turns blank
for 30 seconds, and
resumes displaying the
temperature.
Remote alarm contacts
reverse and audible
alarm starts. Remote
alarm can be cancelled
after pressing “Silence”
button. If the alarm
condition persists after
30 minutes, the remote
alarm and audible
alarm resume.
3
Fault of sensor
Upper sensor is in short
circuit or open circuit, fault
code: E1
1Hz
Continuously
Buzzing
Alarm
light
fl ashes
Display board
alternatively shows E1
for 2 seconds and the
temperature in the lower
sensor for 6 seconds.
Remote alarm contacts
reverse and audible
alarm starts. Remote
alarm can be cancelled
after pressing “Silence”
button. If the alarm
condition persists after
30 minutes, the remote
alarm and audible
alarm resume.
Lower sensor is in short
circuitor open circuit, fault
code: E2
Display board
alternatively shows E2
for 2 seconds and the
temperature in the upper
sensor for 6 seconds.
Control sensor is in short
circuit or open circuit, fault
code: E3
Display alternates
showing E3 for 2 seconds
and both temperatures
in the upper and lower
temperature boxes for 6
seconds.
Defrosting sensor is in short
circuit or open circuit, fault
code: E4
Display alternates
showing E4 for 2 seconds
and both temperatures
in the upper and lower
temperature boxes for 6
seconds.
Alarming sensor is in short
circuit or open circuit, fault
code: E5
Display alternates
showing E5 for 2 seconds
and both temperatures
in the upper and lower
temperature boxes for 6
seconds.
Summary of Contents for HXC-106
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