GREE Air-ccoled Closed Control Unit Service Manual
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“ON/OFF”: As it is touched, the system will issue a command to change the ON/OFF state.
The hint information on the button will accordingly change to the current controlled running state
of entire module. If the “
ON/OFF” button shows that the current state is OFF and it is touched
afterwards, the hint information on the button will change to “ON” meanwhile the start-up
command will be issued by the system which is valid to the entire unit combined with modules.
If needed to start each module unit, ON/OFF should be set in “
User Setting→module setting”.
“Remote Monitoring”: When main module, communication module and monitoring
computer are connected with each other correctly and software for remote monitoring is
executed, “
Remote Monitoring” will emerge. When the software is closed or the
communication paused, the “
Remote Monitoring” will disappear.
“
Error”: It means there is malfunction. Related error information can be consulted on
“Event Log”→ “Current Error”
“Shield Touch Screen”: It means the touch screen has been shielded and all parameters
cannot be set up unless by the “shielding/cancel shielding” operation of remote monitoring.
“Quick Test”：It means the touch screen enters into a quick testing status. This is only
used for tests in the factory.
The above-mentioned “Remote Monitoring”, “Error”, “Shield Touch Screen” and “Quick
Test” are not command buttons, but indications of events that occur to the touch screen.
Note: Touch screen takes 1 minute to save the set data, which means the set data or
change of command will be saved to FLASH inside the touch screen after 1 minute. If power is
off right after the setting, then the set data won’t be saved because there is not enough time for
saving, in which case, touch screen will still operate and display according to the previous
parameters when it is re-energized.
2.2 User Setting Interface
（1）Humid&Temp. Setting Interface
This interface provides the customer with the setting for the unit temp., the unit humidity and
their precision. The setting parameters are effective to the entire unit with combined modules.
Prevent conflicts between temp.&humid setting and upper/lower limits of temp.&humid:
Max value of return air temperature setting=upper limit setting of return air
temperature(alarm) - 2 , minimum value of return air temperature setting=lower limit setting of
℃
return air temperature(alarm) + 2 ,℃
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