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Operation
User reference guide
25
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620246-1A – 2021.02
▪
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.
To set the space operation mode
1
Go to [4.1]:
Space heating/cooling
>
Operation mode
2
Select one of the following options:
▪
Heating
: Only heating mode
▪
Cooling
: Only cooling mode
▪
Automatic
: The operation mode changes automatically
between heating and cooling based on the outdoor
temperature. Restricted per month according to the
Operation mode schedule
[4.2].
To restrict automatic changeover according to a schedule
Conditions:
You set the space operation mode to
Automatic
.
1
Go to [4.2]:
Space heating/cooling
>
Operation mode
schedule
.
2
Select a month.
3
For each month, select an option:
▪
Reversible
: Not restricted
▪
Heating only
: Restricted
▪
Cooling only
: Restricted
4
Confirm the changes.
