Delta HCH1850, User Manual

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Chapter 5 Operation
Operation
mode
Description
Installation
mode
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This mode is used to de-humidify and adjust the water balance. When it is
started, the three-way ball valve will fully open and the fans will rotate at
the minimum speed. When the system humidity falls within the operation
scope, the
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short beeps continuously until you leave the installation mode.
For the operating temperature and humidity, refer to
4.3 Operating
Temperature and Humidity.
Force
mode
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The three-way ball valve is fully open and the fans run at the highest
speed. This mode is generally used for unit testing or emergency cooling
request.
5.6 Shutdown
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System Mode
ON Standby
Sure? Y/ N
WARNING:
In the standby mode, the unit is still in power-on status! In the standby mode, you
must disconnect the input power to get the unit to fully power-off.
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standby mode, select Y and press WRFRQ¿UP,IWKH STANDBY indicator lights, the unit is
in the standby mode. Now, the cooling unit is still in power-on status and the fans run at the
minimum speed.
Next, disconnect the external power and make sure that the fans stop and the LCD display is
off.