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Controller Operation Instruction
◆ Description of Basic Operation of Wired Controller
1. Once powered on, the wired controller displays a startup password input interface; and the
operation can be done only after the input of correct startup passwords. (please consult Haier’s after
sales service personnel for initial passwords).
Note: initial passwords are not set for some types of units.
2. If you want to start up the modular unit, press the [On/Off] key on the wired controller, then the
system starts up and operates in the set mode, and the startup indicator light turns on.
3. The operation mode is generally selected via the [Mode] key prior to the startup, and the mode
switch is allowed during the system operation; the system can automatically shut down, and then it
can start up and operate in the new operation mode.
4. In the main interface, directly press the [Modify] key to change the target temperature of the return
water; the modification range is 10-25℃ and 25-50℃ respectively for cooling and heating. The
optimal set temperature is 12℃ for cooling and 40℃ for heating.
5. Users can operate the system in the “Power Save” mode through pressing the [Power Save] key; in
the “Power Save” mode, the target temperature of return water is set at 15℃ for cooling and 37℃
for heating.
■ Description of Controller Display
I. Upon power on, the wired controller displays
the main interface first.
Main interface
07/01/01 23:59:59 SUN
Set Mode: Cooling ☆
Set Temperature: 25℃ [Timing]
System Fault: None
Date and time is displayed in the first line: MM/DD/YY hour/minute/second day of the week
Set status is displayed in the second line: Set mode; you may press the [Mode] key on the wired
controller to switch the cooling/heating mode;
Linked switch status; ☆ is displayed in closed status; ☆ is
not displayed in open status;
Set temperature is displayed in the third line: In heating mode, press or on the [Modify]
key to set the temperature within 25℃--50℃.
In cooling mode, press or on the [Modify] key to
set the temperature within 10℃—25℃.
[Timing] icon is displayed only the timing is valid on the
same day.
Current fault is displayed in the fourth line: The current fault codes and the address of fault unit are
displayed. If a module has several faults, the fault with a small code is reported in a priority manner; if
several modules are fault, the fault with a small module address is reported in a priority manner.
II. Press the [Set] key to enter the main item setting interface
The first three items on this interface are general items set by users,
while the fourth item is a special item set by professionals.
Main item setting interface
Set Time
Timing Mode:
Week/Cycle/Day/Timing Disabled
Set Timing
Set Parameter
Time setting interface
1. When you press the [Select] key to select the set time item, the set
time is displayed on a black background; you may press the [Ok] key to
enter the time setting interface.
MM 00/DD00/YY00
00 H/00M/00S
You may press or on the [Select] key to select the modification item: Hour/Minute/Second on
MM/DD/YY. The selected modification item is displayed on a black background. Press or on
the [Modify] key to set corresponding values; upon the modification completion, press the [Ok] key to
update and the system will return to the main interface. The timing is displayed on the main interface
based on the modified time.
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