38
InfraSuite RowCool Precision Cooling –
Chilled Water
When you try to enter
Setting
or
Administrator
screen, a password prompt will occur. If no
operation is performed for a long time after login, the login status will become invalid after
the system becomes idle. If you want to re-enter the above menu, you must re-enter the
password.
In the password prompt screen, entering
the admin password
means the entry of admin-
istrator and entering
the user password
represents the entry of general users. If you only
enter
Power ON/ OFF
or
Status
screen, no password is required.
The user’s default password is
0000
.
NOTE:
To avoid unauthorized change of and access to important settings, do not
disclose the admin password. To get the admin password, contact service personnel.
5.5 Operation
Modes
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Operation
mode
Description
Automatic
mode
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To get the cooling unit to automatically control its cooling capacity, please
select the automatic mode and the system will automatically micro-adjust
the fan speed and the opening of the three-way ball valve in accordance
with the set points.
You may also simultaneously press
Ÿź
for three seconds in any screen
to quickly switch between the automatic mode and the standby mode.
NOTE:
In the manual mode, the simultaneous pressing of
Ÿź
for 3 sec will not make the unit automatically enter the
automatic mode or standby mode.
Standby
mode
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In the standby mode, the fans run at the minimum speed, the three-way
ball valve is fully closed and the chilled water goes through bypass without
passing the coil.
Manual
mode
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The manual mode is used to test if the components work normally or
make the system operate in accordance with the manual setting. In this
mode, you may manually set: fan speed, ball valve opening, indicator on-
off, backlight on-off, buzzer on-off, alarm dry contact on-off and chiller’s
water pump dry contact on-off.
In the manual mode, press
ESC
to automatically return to the standby
mode.
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