5
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Operation
User reference guide
26
EWAA004~008D2 + EWYA004~008D2
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688016-1 – 2022.04
In menu…
You can read out…
[8.9]
Running hours
Running hours of specific system
components
5.6 Space heating/cooling control
5.6.1 About space heating/cooling control
Controlling space heating/cooling typically consists of the following stages:
1
Setting the space operation mode
2
Controlling the temperature
Depending on the system layout and installer configuration, you use a different
temperature control:
▪
Room thermostat control
▪
Leaving water temperature control
▪
External room thermostat control
5.6.2 Setting the space operation mode
About space operation modes
Your unit can be a cooling or a heating/cooling model:
▪
If your unit is a cooling model, it can cool down a space.
▪
If your unit is a heating/cooling model, it can both heat up and cool down a
space. You have to tell the system which operation mode to use.
To determine if a heating/cooling heat pump model is installed
1
Go to [4]:
Space heating/cooling
.
2
Check if [4.1]
Operation mode
is listed and editable. If so, a
heating/cooling heat pump model is installed.
To tell the system which space operation to use, you can:
You can…
Location
Check which space operation mode is currently used. Home screen
Set the space operation mode permanently.
Main menu
Restrict automatic changeover according to a monthly
schedule.
To check which space operation mode is currently used
The space operation mode is displayed on the home screen:
▪
When the unit is in heating mode, the icon is shown.
▪
When the unit is in cooling mode, the icon is shown.
The status indicator shows if the unit is currently in operation:
▪
When the unit is not in operation, the status indicator will show a blue pulsation
with an interval of approximately 5 seconds.
▪
While the unit is in operation, the status indicator will light up blue constantly.
