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5. Configurations
5.1. Code and Function Menu
Hold the + keys at the same time for 10s to enter the Admin Interface;
The codes SET and HY (F1 and F2) are user menu; others are admin menu, ref 4.1 A & C
Temp.
SET
SP (Temperature Set-Point)
HY
Temperature Hysteresis / Return Difference
US
LS
AC
F5
Delay Time for Compressor
Delay Time for Defrosting (only for hot gas
TDF/F10
0
50
3
Min
Defr.
IDF
Defrost
MDF
DTE
FDT
TDF
F10
EL/0
HTG/1
EL/1
N/A
Hot Gas from the compressor.
DCT
F11
Count mode of defrost cycle:
RT/0
COH/1
RT/0
N/A
Cumulative time from the controller power on;
Cumulative time of the compressor working.
DFD
F12
Display mode when defrosting:
RT/0
IT/1
RT/1
N/A
Shows the room sensor temperature display;
IT/1
Shows the evaporator sensor temp. (continue
showing 10 minutes once defrosting over)
Fan
FNC
F13
FOD
CTR/0
C-N/2
CTR/0
N/A
Fan Starts by F14/FOT, Stop by F16/FST;
continuous working except defrosting begins;
C-N/2
FOD
is when the fan starts later than the
compressor; the fan stops if defrosting begins.
FOT
F14
Defrost sensor Temperature for Fan Starts
FOD
F15
Time delay seconds for fan
-255
255
60
S
< 0
FOD
is the period for the fan to start earlier than
the compressor starts; the fan stops if defrosting
≥ 0
The fan was controller by F13/FNC
F5T
F16
Defrost sensor Temperature for Fan Stops
/F14
Alarm
ALU
F17
Room sensor Temperature
to Trigger Alarm
ALL
F18
ALD
F19
0
Cali. OT
F20
Temperature Calibration = Real Temperature - Measured
The EN code menu and the F code menu are same, just for satisfy different clients.
5.2. When will the Defrosting Starts / Stops?
A. Defrost relay will close/on when reaching all the below conditions
The time should later than: the compressor last stops moment + AC/F5 if the defrosting
Mode was thermal air / Hot Gas (TDF/F10 = HTG).
The defrost sensor temperature < Defrost stop temperature (in DTE/F8)
Time passed the defrosting cycle time (IDF/F6) or forced defrosting beginning
B. Defrost relay will open/off when reaching any one of the below conditions
The defrost sensor temperature ≥ Defrost stop temperature (in DTE/F8)
Passed the defrosting Lasting Time (MDF/F7)
5.3. When will the Compressor Starts / Stop?
The room temperature was supposed to keep at the range from "F1(SET)" to "F1+F2 (SET+HY)."
First, Time Conditions
A. When FOD/F15 > 0s, the time should be later than:
• The moment of the compressor recent stops + AC/F5
B. When FOD/F15 < 0s (the fan startup earlier than the compressor), the time later than:
• The moment of the compressor recent stops + AC/F5, and
• The fan starts moment + FOD/F15
And Temperature Conditions
A. If TDF/F10 = EL/0 (like an electric heating wire wound around the evaporator)
Manual turn on the forced cooling
Room Temp ≥ SET/F1
SET/F1
or defrost beginning
or forced refrigeration is over.
SET/F1
HY/F2
B. If TDF/f10 = HTG/1 (Hot Gas from the compressor Reverse Rotary), exist an extra
option than A
Manual turn on the forced cooling
Room Temp ≥ SET/F1
SET/F1
or defrosting is over
or forced refrigeration over
and won't defrost at once.
SET/F1
HY/F2
In defrosting Evaporation Temp > DTE/F8
5.4. When will the Alarming Starts / Stop?
Once alarming, the readout flashing and buzzer screaming press any key to stop the buzzer ticktack, but the
error code in the display will not disappear until all errors have been fixed.
Code Troublesome From Reason
E02
HHH
Readout flash
buzzer screams
ALU/F17
5.5. When will the Fan Works/Stops?
Please check the conditions from FOD/F15 & FNC/F13 from the menu list.
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