Daikin HXY080A7V1B Installation And Operation Manual page 21

Operation example: Schedule timer based on temperature set
points.
When setback function (refer to
page 19) is enabled, the setback operation will have priority over the
scheduled action in the schedule timer.
T
22C 22C
45C 45C
1
19C 19C
42C 42C
0:30
16:00
T
2
40C 40C
23:00 23:00
T
22C 22C
45C 45C
3
19C 19C
42C 42C
40C 40C
23:00 0:30
16:00
1 Schedule timer
2 Setback function
3 When both setback function and schedule timer are enabled
A Setback function
t Time
T Temperature set point
Room temperature
Leaving water temperature
Method 2 Space heating based on ON/OFF instruction
During operation When the schedule timer switches space heating OFF,
the controller will be switched off (operation LED will stop
working).
When pushing The schedule timer for space heating will stop (when
the y button
active at that moment) and will start again at the next
scheduled ON function.
The "last" programmed command overrules the
"preceding" programmed command and will remain
active until the "next" programmed command occurs.
Example: imagine the actual time is 17:30 and
actions are programmed at 13:00, 16:00 and
19:00. The "last" programmed command
(16:00) overruled the "previous" programmed
command (13:00) and will remain active until
the "next" programmed command (19:00)
occurs.
So in order to know the actual setting, one should consult
the last programmed command. It is clear that the "last"
programmed command may date from the day before.
Refer to the operation manual.
The controller will be switched off (operation LED will
stop working).
However the schedule timer icon will stay displayed.
When pushing The schedule timer for space heating will be stopped and
the pr button
will not start again.
The schedule timer icon will not be displayed anymore.
HXY080+125A7V1B
VRV IV System indoor unit
4P325971-1B – 2012.07
"[2] Automatic setback function" on
21C 21C
44C 44C
19C 19C 19C 19C
42C 42C 42C 42C
t
6:30 9:00
18C 18C
37C 37C t
5:00 5:00
A
21C 21C
44C 44C
19C 19C 19C 19C 19C 19C 19C 19C
18C 18C
42C 42C 42C 42C
37C 37C t
5:00 6:30 9:00
Operation example: Schedule timer based on ON/OFF instruction.
When setback function (refer to
page 19) is enabled, the setback operation will have priority over the
scheduled action in the schedule timer if ON instruction is active. If
OFF instruction is active this will have priority over the setback
function. At any time the OFF instruction will have the highest priority.
ON
B
22C 22C
45C 45C
1
19C 19C
42C 42C
16:00 0:30
2
23:00 23:00
ON
B
22C 22C
45C 45C
19C 19C
18C 18C
42C 42C
3
40C 40C
23:00
16:00
1 Schedule timer
2 Setback function
3 When both setback function and schedule timer are enabled
A Setback function
B ON/OFF instruction
t Time
T Temperature set point
Room temperature
Leaving water temperature
[0-04] Status: defines whether the ON/OFF instruction can be

used in the schedule timer for cooling.
Same as for [0-03] but for cooling schedule timer.
For cooling, no setback function is available.
[1] Settings are not applicable
[2] Automatic setback function
Setback function provides the possibility to lower the room
temperature. The setback function can for instance be activated
during the night because the temperature demands during night and
day are not the same.
INFORMATION
By default the setback function is enabled.

The setback function can be combined with the

automatic weather dependent set point operation.
Setback function is an automatic daily scheduled

function.
[2-00] Status: defines whether the setback function is turned ON

(1) or OFF (0)
[2-01] Start time: time at which setback is started

[2-02] Stop time: time at which setback is stopped

Setback can be configured for both room temperature control and
leaving water temperature control.
"[2] Automatic setback function" on
OFF ON
21C 21C
44C 44C
19C 19C
42C 42C
t
6:30 9:00
18C 18C
40C 40C
t
5:00 5:00
A
OFF ON
21C 21C
44C 44C
19C 19C
42C 42C
t
6:30 9:00
Installation and operation manual
19