EWWQ090G ÷ EWWQ720L - R410A - Water-cooled scroll chillers
EWLQ090G ÷ EWLQ720L - R410A - Condenser less
EWHQ100G ÷ EWHQ400G - R410A - Heat pump scroll chillers
EWAQ-G 075
- R410A - Air-cooled scroll chillers
EWAQ-
- R410A - Air-cooled scroll chillers
EWYQ-
- R410A - Air-cooled scroll heat pumps
Air and Water cooled scroll chillers & heat pump
Operation
Manual
Operation Manual
18
EWWQ - EWLQ - EWHQ
EWAQ - EWYQ
Air or Water cooled scroll chiller &
heat pump
D-EOMHW00107-15EN
In the inbuilt HMI a ringing bell in the top right corner will indicate an active alarm, If the bell
doesn’t move it means that the alarm has been acknowledged but not cleared because the alarm
condition hasn’t been removed.
Same alarm indication is performed by the LED of the button 2 of the external HMI.
M a i n M e n u
1 /
E n T e r P a s s w o r d
U n I t S t a t u s =
O F f : U n i t S W
A c T i v e S e t p t =
7 . 0 ° C
The active item is highlighted in contrast, in this example the item highlighted in Main Menu is a
link to another page. By pressing the button 6, the HMI will jump to a different page. In this case
the HMI will jump to the Enter Password page.
E n t e r P a s s w o r d
2 / 2
E n t e r P W
* * * *
3.3 Passwords
The HMI structure is based on access levels that means that each password will disclose all the
settings and parameters allowed to that password level. Basic information about the status
including the active alarm list, active setpoint and controlled water temperature can be accessed
without the need to enter the password.
The UC handles two level of passwords:
USER
5321
MAINTENANCE 2526
The following information will cover all data and settings accessible with the maintenance
password. User password will disclose a subset of the settings explained in chapter 4.
In the Enter Password screen, the line with the password field will be highlighted to indicate that
the field on the right can be changed. This represents a setpoint for the controller. Pressing the
wheel or button 6 the individual field will be highlighted to allow an easy introduction of the numeric
password. By changing all fields, the 4 digits password will be entered and, if correct, the additional
settings available with that password level will be disclosed.
E n t E r P a s s w o r d
2 / 2
E n t e R P W
5
* * *
