E3
Temp.hysteresis
1
～
20
℃
4
℃
E4
Comp.start delay time
0
～
10Min
0Min
E5
Offset on room Temp.
－
10
～
10
℃
－
1
℃
6. The factory default resumption: press“
▼
” button and “
▲
”button simultaneously for 6 seconds, the display
flashes , all parameters will be resumed as same as factory defaults. After 6 seconds, it returns to the normal
operation.
7. Lock parameters:
In normal operating, press “
▼
” button and hold for 6 seconds to lock the parameters if "OFF" is displayed, or
to unlock if "ON" is displayed. Parameter can be displayed only and can not be modified if locked. (the factory
default is "ON" )
Function details
1. Temperature Control
After turning on for the delay time ,the compressor starts operating and evap.fan starts operation after 3
seconds delay time when cold-room temperature
≥
(set temp hysteresis), and will be off when cold-room
temperature
≤
set temperature.
To protect the compressor,it can re-start unless the time when the compressor stops every time is longer than the
delay time(Parameter E4).
2. Timing defrosting by turning off the compressor
After operating for a defrost interval time (parameter F2), it enters turning-off state automatically, the
compressor stops and evaporation fan operates;it enters automatic temperature control state after certain time
(Parameter F1).
When parameter F4=1,the cold-room temperature is locked durimg defrosting, the temperature in defrosting
state is displayed. After defrosting, the cold-room display will be resumed normal after displaying delay parameter
F6 (or reach control temperature).
When the defrost interval time is set to "00" , the function of automatic defrost will be cancelled.
press
“SET” and “
▼
” button simultaneously and hold for 6 seconds to enter the parameter setup mode while F1
flashes. Press again
“SET” button to select F2,F4,F6,F1. Press “
▲
”or “
▼
” button, the value of parameter will
be displayed and can be modified and stored.
If no more button is pressed within 6 seconds, it will return to normal operation mode.
Parameter
Function
Set range
Default
F1
Max.Defrost duration
1
～
90Min
18Min
F2
Defrost interval time
0
～
24Hr
6Hr
F4
Display during defrost
0=Normal display
1=Last value before defrost
1
F6
The temp.display delay
time after defrost
1
～
30Min
10Min
3. Abnormal work mode
When room sensor is short-circuited or overheated (more than 150
℃
) "HH" is displayed ; When room sensor is
open-circuited or temperature is too low ( less than
－
45
℃
) "LL" is displayed. At that time the compressor enters
timing operation mode automatically by the cycle of 45 minutes on and 15 minutes off.
4.Circuit Diagram