5 Operation
Operation manual
12
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688015-1C – 2022.09
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 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.
5.6.2
To change the desired room temperature
During room temperature control, you can use the room temperature
setpoint screen to read out and adjust the desired room temperature.
1
Go to [1]:
Room
.
Room
1
2
Adjust the desired room temperature.
+
–
21
°C
1
a
b
Room
a
Actual room temperature
b
Desired room temperature
If scheduling is on after changing the desired room temperature
▪ The temperature will stay the same as long as there is no
scheduled action.
▪ The desired room temperature will return to its scheduled value
whenever a scheduled action occurs.
You can avoid scheduled behaviour by (temporarily) turning off
scheduling.
To turn off room temperature scheduling
1
Go to [1.1]:
Room
>
Schedule
.
2
Select
No
.
5.6.3
To change the desired leaving water
temperature
INFORMATION
The leaving water is the water that is sent to the heat
emitters. The desired leaving water temperature is set by
your installer in accordance with the heat emitter type.
Only adjust the leaving water temperature settings in case
of problems.
You can use the leaving water temperature setpoint screen to read
out and adjust the desired leaving water temperature.
1
Go to [2]:
Main zone
or [3]:
Additional zone
.
Main zone
2
Additional zone
3
2
Adjust the desired leaving water temperature.
+
–
20
°C
2
a
b
Main zone
+
–
12
°C
3
a
b
Additional zone
a
Actual leaving water temperature
b
Desired leaving water temperature
5.7
Schedule screen: Example
This example shows how to set a room temperature schedule in
cooling mode for the main zone.
INFORMATION
The procedures to program other schedules are similar.
To program the schedule: overview
Example:
You want to program the following schedule:
Summary of Contents for EWAA004D2V3P-H
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