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EWYQ080~250DAYN
Packaged air-cooled water chillers
4PW35558-1B

Operation manual

Tasks of the login/logout menu

Changing the user password

Access to the usersettings menu and the setpoints menu is protected
by the user password (a 4-digit number between

0000

and

9999

After the password is entered, other protected screens do no longer
require the entering of the password.

To log out, go to the login/logout menu and alter the login status and
the logout setting.

To change the user password, proceed as follows:

Enter the

USERPASSWORD MENU.

(Refer to the chapter

"How

to enter a menu" on page 8

The controller will request the password.

Enter the actual correct password using the

ﬁ

and

‡

keys.

For each of the 4 digits:
-

Use the

ﬁ

and

keys to select the correct number.

Press the

‡

key to enter and select the next number.

When pressing the

‡

key on the last number, the complete

password is entered.

After the

‡

key has been pressed to confirm the password, the

controller shows the first login/logout screen.

The login status is shown.
The logout is set to

When the setting for logout must change to

YES

Press the

‡

key to position the cursor behind

LOGOUT?

Press the

ﬁ

keys to change the setting to

YES

Press the

‡

key to confirm the setting.

The controller leaves the login/logout screen and shows the first
screen of the read out menu.

When the setting for logout stays

, press the

key to enter

the second login/logout screen.

The controller requests for a new password.

Press the

‡

key to position the cursor behind

NEW PASSWORD

Enter the new password using the

ﬁ

and

‡

keys.

For each of the 4 digits:
-

Use the

ﬁ

and

keys to select the correct number.

Press the

‡

key to enter and select the next number.

When pressing the

‡

key on the last number, the complete

new password is entered and the cursor is positioned behind

CONFIRM

The controller requests to confirm the new password.

Enter the new password again using the

ﬁ

and

‡

keys.

For each of the 4 digits:
-

Use the

ﬁ

and

keys to select the correct number.

Press the

‡

key to enter and select the next number.

When pressing the

‡

key on the last number, the

confirmation of the new password is completed.

ROUBLESHOOTING

This section provides useful information for diagnosing and
correcting certain troubles which may occur in the unit.

Before starting the trouble shooting procedure, carry out a thorough
visual inspection of the unit and look for obvious defects such as
loose connections or defective wiring.

Before contacting your local dealer, read this chapter carefully, it will
save you time and money.

Overview of safety messages

NOTE

The default user password is

1234

NOTE

The actual password will only be changed when the
new password and the confirmed password have the
same value.

If changed on one of the units in a DICN configuration,
this setting is automatically transferred to all the other
units in the network.

When carrying out an inspection on the supply panel or on
the switch box of the unit, always make sure that the circuit
breaker of the unit is switched off.

Message safety menu

Symptom

UNIT SAFETY

0AE:FLOW HAS STOPPED

5.2

0AE:PUMPINTERLOCK

5.3

0A4:FREEZE UP

5.1

0A4:FREEZE UP C1

5.1

0A4:FREEZE UP C2