Daikin Hydrocube EWWQ049KAW1M Manuel D'utilisation page 12

Tasks of the user settings menu
Entering the user settings menu
The user settings menu is protected by the user password, a 4-digit
number between 0000 and 9999.
1 Enter the USERSETTINGS MENU through the main menu. (Refer to
the chapter "Main menu" on page
The controller will request the password.
2 Enter the correct password using the g and h keys.
3 Press q to confirm the password and to enter the user settings
menu.
The controller automatically enters the first screen of the user
settings menu.
To define settings of a certain function:
1 Go to the appropriate screen of the usersettings menu using the
g and h keys.
2 Position the cursor behind the parameter to be modified using
the q key.
3 Select the appropriate setting using the g and h keys.
4 Press q to confirm the selection.
When the selection has been confirmed, the cursor switches to
the next parameter which can now be modified.
5 Repeat from instruction 2 onwards to modify the other
parameters.
Defining and activating the control mode
The unit is equipped with a thermostat which controls the cooling
capacity of the unit. Two different control modes exist:
manual control mode: the operator controls the capacity himself
- MANUAL CONTROL
inlet control mode: uses the evaporator and/or condenser
entering water temperature to control the capacity of the unit -
INLET WATER
When the operator wants to control the capacity himself, he can
activate manual control mode using the CONTROL SETTINGS screen of
the user settings menu. In this case, he has to define the following
parameters:
MODE (present mode): manual control.
C11, C12, C21, C22, C31, C32 (compressor status of module 1, 2
and 3 in manual mode or capacity limitation value in case the
"capacity limitation remote contact" is enabled): ON or OFF.
NOTE To activate manual control mode, select MANUAL as
present mode. To deactivate the manual control mode,
select INLET WATER as present mode.
Operation manual
11
9).
Defining the thermostat settings
When automatic control mode is selected, the unit uses a thermostat
to control the cooling or heating capacity. The maximum number of
thermostat steps are as listed:
98
113
128
However, the thermostat parameters are not fixed and can be
modified via the THERMOST. SETTINGS screen of the user settings menu.
The default, limit and step values for the thermostat parameters are:
Lower limit
STPL (°C) 0.4
STEPDIFFERENCE (°C) 0.2
LOADUP (sec) 15
LOADDOWN (sec) 15
A functional diagram showing the thermostat parame-
NOTE
ters can be found in
Defining the lead-lag mode
The lead/lag mode determines which module starts up first in case of
a capacity demand.
The lead-lag parameters are:
LEAD-LAG MODE
Automatic: the controller decides whether module 1, module 2,
or module 3 starts up first.
The modules follow the entered order of starting up (see table
below).
3 modules
first > next > last
1 2 3
2 3 1
3 1 2
NOTE If a module is de-activated due to a failure, the next
module will start up instead.
LEAD-LAG HOURS: In the automatic mode, the number of hours
indicated on the display is the maximum difference between the
running hours of the modules. This value is important for main-
tenance purposes. It should be set high enough so that the
modules do not require maintenance at the same time and that
at least one module can remain constantly active.
The lower and upper limits are 100 and 1000 hours respectively.
The default value is 1000 hours.
Defining the pump control settings
The PUMPCONTROL screen of the user settings menu allows the user to
define the pump-leadtime and pump-lagtime.
PUMPLEADTIME: used to define the time that the pump must run
before the unit can start up.
PUMPLAGTIME: used to define the time that the pump keeps
running after the unit has been stopped.
Defining the display settings
The DISPLAY SETTINGS screen of the user settings menu allows the
user to define the choice of language, time and date.
LANGUAGE: used to define the language of the displayed
information of the controller.
TIME: used to define the present time.
DATE: used to define the present date.
4 147
4 162
4 177
192
Upper limit Step Default
2.0 0.1 1.5
0.8 0.1 0.5
300 1 180
300 1 20
"Annex I" on page 16.
2 modules
first > last
1 2
2 1
EWWQ049~064KAW1M + ECB2+3MUCW
Packaged water-cooled water chillers
D-EOMHP01008-17EU_01
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6
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