Suzhou Lily Tech. Co., Ltd.
● When in non-defrosting stage, press and hole【▲】 for 7 seconds, the system starts forced
defrosting. When in defrosting stage, press and hole 【▲】 for 7 seconds, the defrosting stops.
5.4.3Dropping Water Function
● System can be set” Dropping water time (U33)”. After defrosting, within “Dropping water time”,
system will not start cooling.
● This function will not work when:
◆ manual forced defrosting
◆ during defrosting, while defrosting sensor fails
5.4.4 Check Defrosting Data
● Check defrosting sensor temperature: When the digit show the room temperature, depress 【▲】,
the digits will show defrost sensor’s temperature. Do not keep depressing for 7 seconds, else the
device will launch forced defrosting.
● Check the left time of defrosting or dropping: During automatic defrosting or dropping proces,
depress 【▼】, the digits show the left time.
5.5 High-temperature and Low-temperature warning
● When the test temperature ≥ “MAX TEMP”+ “U50”,and the time reachs to “U52 or U53”,high
temperature warning starts.
● When the test temperature ≦ “MIN TEMP”+ “U51”,and the time reachs to “U52 or U53”,low
temperature warning starts.
5.6 External input warning
●There are several ways for the external warning input to this device:
On: Close, warning starts. When ok, input opens.
Off: Open, warning starts. When ok, input closes.
Lock: when the external warning input signal disappears, system keep warning, Only press the key,
can warn stop.
Unlock: when the external warning input signal disappears, warning stops.
6. Temperature Calibration Function
When there is tolerance between the measured temperature and real temperature, set parameter U20 and
u21 to calibrate. The calibration range is ±9.9 . while set the parameter, the step is ℃0.1 for every key ℃
press. Keep pressing, the set data will increase/decrease quickly.
7. Restore the default password
When password forgotten, the following way can restore it:
Press and hold“▲”and “▼”key, turn on the power supply, the device displays “UnL”, after three seconds,
buzzer sounds, system auto restores the default password“11”.
8. Controller Installation
8.1 Warning
Avoid installing the device in the following environment:
● Relative humidity is greater than 90%, or possibly dewing.
● Strong vibration.
● Possibility be dropped, or within fog.
● Exposed to eroding and polluting gases (such as: air containing sulfur and ammonia, salty fog, smoky
mist) to prevent erosion and oxidation.
