9
All keys would be invalid in lock mode. Please unlock first.
ON/OFF
1. Keep pressing the key 3 seconds, power down, goes to stand-by mode.
2.Keep pressing the key again 3 seconds to return back to normal working.
Light
Press the key, turn on or turn off the LED lights inside. In stand-by mode, the key
is invalid.
Zone switch
Press the key to switch between upper zone and lower zone for choosing which
zone to set temperature. Press the key once, the LED display in chosen zone
flash regularly. Press up and down key to set temperature. Press the key again;
switch the zone to set temperature.
UP
Press the key once, LED Display in regular flash showing current set
temperature. Continue pressing to adjust set temperature, one press increase
1
℃
. Regular flash quit after 5 seconds detecting no press and new set
temperature save. LED display return to show actual temperature inside.
Down
Press the key once, LED Display in regular flash showing current set
temperature. Continue pressing to adjust set temperature, one press reduce 1
℃
.
Regular flash quit after 5 seconds detecting no press and new set temperature
save. LED display return to show actual temperature inside.
Child Lock
（
Combination key
）
1. Lock
：
Press both keys at the same time for 3 seconds to lock.
2. Unlock
：
Press both keys at the same time for 3 seconds to unlock.
Fahrenheit/Celsius display interchange
Switch temperature display between Fahrenheit and Celsius by pressing the key.
Attention
4. For both upper and lower zone, the cooling temperature could be set from
5 to
22
℃
. And temperature of lower zone could only be set equal to or higher than
that of upper zone.
5. Alarm sound: when the system malfunctionoccur and alarm sound, press any
