Technical data
Chapter 5 Microprocessor Control 11
DataMate 3000 Series Air Conditioner Technical Manual
5.4 Control Screen
5.4.1 Off Screen
The LCD displays this screen after the system is powered on. In addition, it will be displayed by pressing the ON/OFF
button during system operation, as shown in Figure 5-3. You can press the Left/Right button and the Enter button to
select the display language.
EMERSON
En g l i s h
中 文
Figure 5-3 Off screen
5.4.2 On Screen
When the system is in automatic turn-on status after powered on, the LCD displays the On screen. Press the ON/OFF
button from the Off screen, and the On screen will also be displayed, as shown in Figure 5-4.
S t a r t i ng
1 0 s
Figure 5-4 On screen
5.4.3 Normal Screen
After the system is powered on, the Normal screen will be displayed after 10 seconds (default) for heat startup delay or
after Enter button is pressed. The Normal screen displays the current temperature and relative humidity readings,
operating mode (cool, heat, dehumidify, humidify), alarm information, current date and time, as shown in Figure 5-5.
28
℃
Coo l
50 % r h Hum
H i gh Temp 1 / 4
2 0 04 / 01 / 0 1 0 0 : 0 0
Figure 5-5 Normal screen
5.4.4 Password Screen
There are three levels of password in the microprocessor control.
Level one password (0001) is intended for the ordinary user. Users can view all menus by entering this password, but
has no authority to change the parameters except for those of temperature and humidity.
Level two password is intended for trained service personnel. Users can change all parameters by entering this
password.
Level three password is intended for the manufacturer’s personnel only.
Press Enter button from the Normal screen, Password screen is displayed, as shown in Figure 5-6.
P a s sw o r d : 1 * * *
Figure 5-6 Password screen
Method of entering password:
Press Left/Right button to move the cursor to the digit to be changed, and then Up/Down button to change the value.
Press Enter button to validate the password and enter the main menu. Press Esc button to return to the Normal
screen.