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a
key, to enter the user password menu.
key, to enter the DICN menu, also referred to as network
d
menu (optional).
i
key, has no effect on EWLD units
NOTE
Temperature readout tolerance: ±1°C.
Legibility of the alphanumeric display may decrease in
direct sunlight.
How to enter a menu
Digital built-in controller
Scroll through the main menu using the g and h keys to move
the
mark in front of the menu of your choice. Push the q key
to enter the selected menu.
Digital remote controller
Press the corresponding menu key indicated in "User interface",
paragraph
"Digital remote controller (to be ordered separately)"
on page 7
Connection to the unit
For a remote controller a cable length of up to 1000 metres
(EWLD120~260) or 300 metres (EWLD340~540) between the digital
controller and the unit is allowed. This gives the opportunity to control
the unit from a considerable distance. Refer to "Cable for digital
controller" in the installation manual for cable specifications.
For units in a DICN configuration, the digital controllers of the units
can be installed remotely at a distance of up to 50 metres by using a
6-ray telephone cable with a maximum cable resistance of 0.1 Ω/m.
Working with the unit
This chapter deals with the everyday usage of the unit. Here, you will
find how to perform routine tasks, such as:
"Setting the language" on page 8,
"Switching the unit on" on page 8 and "Switching the unit off" on
page 8,
"Consulting actual operational information" on page 9,
"Adjusting the temperature setpoint" on page 9,
"Resetting the unit" on page 10.
Setting the language
If desired, the operating language can be changed to any of the
following languages: English, German, French, Spanish or Italian.
1
Enter the usersettings menu. Refer to chapter
menu" on page 8
2
Go to the appropriate screen of the usersettings menu using the
g and h keys.
3
Press q to change the operating language until the desired
language is active.
EWLD120~540MBYNN
Condenserless water-cooled water chillers
4PW22687-1
Switching the unit on
1
Press the J key on the controller.
Depending on the setting of the remote ON/OFF control
parameter (refer to the service manual), the following conditions
may occur.
When the remote ON/OFF control parameter is set to NO, the
LED inside the J key lights up and an initialization cycle is
started. Once all the timers have reached zero, the unit starts
up.
When the remote ON/OFF control parameter is set to YES, the
following table applies:
Local key
2
If the water chiller does not start after a few minutes, refer to the
chapter
Switching the unit off
If the remote on/off control parameter is set to No:
Press the o key on the controller.
The LED inside the o key goes out.
If the remote on/off control parameter is set to Yes:
Press the o key on the controller or switch the unit off using the
remote on/off switch.
The LED inside the o key goes out in the first case and starts
blinking in the second case.
NOTE
Switching units ON/OFF in a DICN system
If the o key is pressed on a unit with status
other units with status
If the o key is pressed on a unit with status
only this unit will be ON or OFF.
NOTE
NOTE
"How to enter a
Remote switch
ON
ON
ON
OFF
OFF
ON
OFF
OFF
"Troubleshooting" on page
In case of emergency, switch off the unit by pushing the
emergency stopbutton.
Also consult
"Defining the schedule timer" on page 13
and "Customization in the service menu" chapter "Set-
ting of the changeable inputs and outputs" in the instal-
lation manual.
or
When a remote ON/OFF switch is configured, the
remote ON/OFF contact for all units with status
or
of a DICN network is the contact
connected to the master unit.
For units with status
contact is the contact connected to this unit.
If the user wants 1 unit to operate on his command
only, this unit is to be set to
It is recommended not to select the master unit for this
purpose. Even if the status of the master is set to
connected to the master which will switch ON/OFF the
other units in
therefore never be possible to only switch the master
unit OFF remotely.
Switching OFF the master unit only, should in this case
be done by the local ON/OFF key on the master unit.
Unit
o LED
ON
ON
OFF
Flashing
OFF
OFF
OFF
OFF
17.
or
, all
will be ON or OFF.
, the remote
.
, it will still be the contact
or
mode. It would
Operation manual
8
,
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