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Operation manual
19
EWAQ080~260DAYN
Packaged air-cooled water chillers
4PW35556-1E
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:
1
Enter the
USERPASSWORD MENU.
(Refer to the chapter
"How
to enter a menu" on page 8
).
The controller will request the password.
2
Enter the actual correct password using the
fi
,
Ì
and
‡
keys.
For each of the 4 digits:
-
Use the
fi
and
Ì
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.
3
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
NO
.
4
When the setting for logout must change to
YES
.
-
Press the
‡
key to position the cursor behind
LOGOUT?
-
Press the
fi
or
Ì
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.
5
When the setting for logout stays
NO
, press the
Ì
key to enter
the second login/logout screen.
The controller requests for a new password.
6
Press the
‡
key to position the cursor behind
NEW PASSWORD
.
7
Enter the new password using the
fi
,
Ì
and
‡
keys.
For each of the 4 digits:
-
Use the
fi
and
Ì
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.
8
Enter the new password again using the
fi
,
Ì
and
‡
keys.
For each of the 4 digits:
-
Use the
fi
and
Ì
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.
T
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
5.1
0A9:EEV PCB COMM ERR
5.5
0A9:EEV PCB ERR
5.5
0C9:INL SENSOR ERR
7
0CA:OUT SENSOR ERR
7
0H9:AMB T SENSOR ERR
7
0U4:EXTPCB COMM.ERR
9
0U4:MAINPCB COMM.ERR
10
0U5:PCB COMM.PROBLEM
11
CIRCUIT 1
SAFETY
153:FAN OVERC. ST1
5.4
153:FAN OVERC. ST2
5.4
153:FAN OVERC. ST3
5.4
1A9:EEV ERR
5.5
1A9:SUPERHEAT ERR
5.6
1E3:HIGH PRESSURE SW
5.7
1E4:LOW PRESSURE
5.8
1E6:COMPR 1 SAFETY
5.9b/5.10
1E6:COMPR 2 SAFETY
5.9b/5.10
1F3:HIGH DISCH TEMP1
5.11
1F3:HIGH DISCH TEMP2
5.11
1J3:DISCHSENSOR ERR1
7
1J3:DISCHSENSOR ERR2
7
1J5:REFR SENSOR ERR
7
1J5:SUCTSENSOR ERR
7
1JA:HP SENSOR ERR
7
1JC:LP SENSOR ERR
7
1U1:REV PHASE PROT
5.12
CIRCUIT 2
SAFETY
253:FAN OVERC. ST1
5.4
253:FAN OVERC. ST2
5.4
253:FAN OVERC. ST3
5.4
2A9:EEV ERR
5.5
2A9:SUPERHEAT ERR
5.6
2E3:HIGH PRESSURE SW
5.7
2E4:LOW PRESSURE
5.8
2E6:COMPR 1 SAFETY
5.9b/5.10
2E6:COMPR 2 SAFETY
5.9b/5.10
2F3:HIGH DISCH TEMP1
5.11
2F3:HIGH DISCH TEMP2
5.11
2J3:DISCHSENSOR ERR1
7
2J3:DISCHSENSOR ERR2
7
2J5:REFR SENSOR ERR
7
2J5:SUCTSENSOR ERR
7
2JA:HP SENSOR ERR
7
2JC:LP SENSOR ERR
7
2U1:REV PHASE PROT
5.12