Operation manual
13
EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22685-1
User password menu
Cooling/heating menu
Network menu
The "network" menu provides useful information regarding the network.
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
$$$$
and
,,,,
.
1
Enter the
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. Three different control modes exist:
■
manual control mode: the operator controls the capacity himself
-
•
,
(capacitystep of circuit 1, 2 in manual mode):
0%, 30%~100%.
■
inlet control mode: uses the evaporator and/or condenser
entering water temperature to control the capacity of the unit -
■
outlet control mode: uses the evaporator leaving water
temperature to control the capacity of the unit -
To check the status of the changeable
digital inputs.
Note that for a unit in a DICN system,
the inputs apply to this unit.
It will be the remote input on the master
unit however, that will be determining
for the operation of the unit.
To check the status of the power relays
of circuit 1.
To check the status of the power relays
of circuit 2 (only for EWWD360~540).
To check the capacity mode and
feedback of circuit 1.
To check the capacity mode and
feedback of circuit 2
(only for EWWD360~540).
To check the status of the pump, the
alarm and the evaporator heater voltage
free contacts.
To check the status of the changeable
relay output.
To change the user password.
To select cooling or heating mode.
To consult the temperature setpoint, the
common entering water temperature
(entering water temperature of the
master unit) and the common leaving
water temperature (only displayed when
L mode is set and the
optional common leaving water sensor
(R8T) is installed). Refer to
and activating the control mode" on
page 13
The status screen of the network menu
shows the condition of the master unit
(
) and slave units (
...
#
).
(*
#
(*
(*
(*
+
$#$$7
(*
+
$#$$7
(*
(*
%
(
$$$$
$$$$
(
()
$!
$!
(* $$+
$$+
$$+
# $$+
NOTE
To activate manual control mode, select
as
present mode. To deactivate the manual control mode,
select
or
as present
mode.
For units in a DICN configuration:
When changing the control mode on one of the
units, it is automatically transferred to all other
units.
Manual control mode however can only be
selected on units with status
.
