Daikin EWWQ-G - 5.2 Unit;Circuit Start-up

EWWQ090G ÷ EWWQ720L - R410A - Water-cooled scroll chillers
EWLQ090G ÷ EWLQ720L - R410A - Condenser less
EWHQ100G ÷ EWHQ400G - R410A - Heat pump scroll chillers
EWAQ- - 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
EWWQ - EWLQ - EWHQ
EWAQ - EWYQ
Air or Water cooled scroll chiller &
heat pump
D-EOMHW00107-15EN
Operation Manual
17
2. External HMI (POL871.72) (W/C units)
This External HMI is provided of six buttons.
1
i
Back to Main Page
2

Alarm status (from any page it links with the page with alarm list, alarm log and
alarm snapshot if available)
3
Back to the previous level (it can be the Main Page)
4
▲
Go above
5
▼
Go below
6

Confirm
3.1 General Recommendation
Before switching on the unit read the following recommendations:
 When all the operations and all the settings have been carried out, close all the switchbox
panels
 The switchbox panels can only be opened by trained personnel
 When the UC requires to be accessed frequently the installation of a remote interface is
strongly recommended
 Compressor are protected from freezing by electrical heaters. These heaters are supplied
through unit main supply and temperature controlled by thermostat.
 the LCD display of the unit controller may be damaged by extremely low temperatures. For
this reason, it is strongly recommended to never power off the unit during winter, especially
in cold climates.
3.2 Browsing
When power is applied to the control circuit, the HMI screen will be active and display the Home
screen.
An example of the HMI screens is shown in the following picture.
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