Daikin EWAQ016CAW - Other Operation Modes; Schedule Timer

12 Operation
Installation and operation manual
30
EWAQ016~064CAW + EWYQ016~064CAW
Packaged air-cooled water chiller
4P489435-1B – 2017.10
INFORMATION
▪ flashes during setback operation.
▪ While room temperature setback function is active,
leaving water setback operation is also performed (see
"To switch space cooling on/off using leaving water
temperature control"on page29).
▪ Do not to set the setback value too low, especially
during colder periods (e.g. winter time). It is possible
that the room temperature cannot be reached (or it will
take much longer) because of the big temperature
difference.
The setback function provides the possibility to lower the room
temperature. It can be activated e.g. during the night, because
temperature demands during night and day are not the same.
To switch space heating on/off using leaving water
temperature control
In this mode, heating will be activated as required by the water
temperature setpoint. The setpoint can be set manually or through
the schedule timer.
1 Press to switch space heating ( ) on/off.
Result: and the corresponding actual room temperature
setpoint appear on the display. The operation LED lights up.
2 Set the desired leaving water temperature using and
. In order to avoid overheating, space heating cannot
be used when the outdoor ambient temperature rises above a
certain temperature (see "12.1Operation range"on page27).
INFORMATION
Temperature range for heating: 25°C~50°C (leaving water
temperature)
For setup of the schedule timer function, see "12.3.6 Schedule
timer"on page30.
INFORMATION
▪ When an external room thermostat is installed, the
thermo ON/OFF is determined by the external room
thermostat. The remote controller is then operated in
the leaving water control mode and is not functioning
as a room thermostat.
▪ The remote controller ON/OFF status always has
priority over the external room thermostat!
Weather dependent setpoint operation
For the automatic setback function settings, see field setting [2] in
"6.2.9Field settings on the remote controller"on page16.
3 Press 1 time to select weather dependent setpoint
operation (or 2 times when the remote controller room
thermostat function is used).
Result: appears on the display as well as the shift value. The
shift value is not shown if it is 0.
4 Set the shift value using and .
Result: will be displayed as long as the weather dependent
setpoint operation is enabled.
INFORMATION
Range for shift value: –5°C~+5°C
5 Press to deactivate weather dependent setpoint operation.
6 Set the leaving water temperature using and .
INFORMATION
During this operation, instead of showing the water
temperature setpoint, the controller shows the shift value
which can be set by the user.
Automatic setback function
For the automatic setback function settings, see field setting [2] in
"6.2.9Field settings on the remote controller"on page16.
12.3.5 Other operation modes
Start up operation
During start up, on the display means that the heat pump is
still starting up.
Defrost operation ( )
INFORMATION
This function is available for heat pump units ONLY.
In space heating operation, freezing of the outdoor heat exchanger
may occur due to low outdoor temperature. If this risk occurs, the
system goes into defrost operation. It reverses the cycle and takes
heat from the water system to prevent freezing of the outdoor
system. After a maximum of 15 minutes of defrost operation, the
system returns to space heating operation. Space heating operation
is not possible during defrost operation.
Quiet mode operation ( )
Quiet mode operation means that the unit works at reduced
compressor speed so that the noise produced by the unit drops. This
implies that it will take longer until the required temperature setpoint
is reached. Beware of this when a certain level of heating is required
indoors.
There are 3 different levels of quiet mode operation. The desired
quiet mode is set through a field setting.
1 Press to activate quiet mode operation.
Result: appears on the display. If the controller is set to
permission level 2 or 3 (see "6.2 Making field settings" on
page13), the button cannot be used.
2 Press again to deactivate quiet mode operation.
Result: disappears from the display.
The actual temperatures can be displayed on the remote controller.
3 Press for 5 seconds.
Result: The leaving water temperature is displayed ( , / ,
and blink).
4 Press and to display:
▪ The entering water temperature ( and / blink, and
flashes slowly).
▪ The indoor temperature ( and / blink).
▪ The outdoor temperature ( and blink).
5 Press again to leave this mode. If no button is pressed, the
remote controller leaves the display mode after 10 seconds.
12.3.6 Schedule timer
Press to enable or disable the schedule timer ( ).
Four actions per day can be programmed, making a total of 28
actions per week.
The schedule timer can be programmed in 2 different ways:
▪ based on the temperature setpoint (leaving water temperature and
room temperature)
▪ based on the ON/OFF instruction.
The programming method is set in the field settings. See
"6.2Making field settings"on page13. Before programming, fill out
the form at the very end of this document. This form can help you
define the required actions for each day.