Daikin EWAQ016CAW, Installation And Operation Manual

Page: 18 / 40

6 Configuration
Installation and operation manual
18
EWAQ016~ EWYQ016~064CAW
Packaged air-cooled water chiller
4P489435-1B – 2017.10
Space heating based on temperature setpoint
(a)
Press The schedule timer for space heating and the
quiet mode stops and will not start again.
The schedule timer icon is not displayed any
more.
(a) For leaving water temperature and/or room temperature
▪ Operation example: Schedule timer based on temperature
setpoint
When the setback function (see field setting [2]) is enabled, the
setback operation will have priority over the scheduled action in the
schedule timer.
T
t
6:30 9:00
16:00
0:30
19°C 19°C 19°C
22°C
21°C
42°C 42°C 42°C
45°C
44°C
42°C
19°C 19°C 19°C
22°C
21°C
42°C 42°C
45°C
44°C
0:30
1
T
t
18°C
37°C 37°C
18°C
A
5:00 23:00 5:00 23:00
2
T
t
5:00 9:00
16:00
23:00
19°C
18°C
22°C
21°C
42°C
40°C
42°C
45°C
44°C
40°C
19°C
18°C
22°C
21°C
42°C
19°C 19°C
42°C
42°C
19°C 19°C
42°C
45°C
44°C
6:30
3
37°C 37°C
40°C 40°C
1 Schedule timer
2 Setback function
3 Both setback function and schedule timer are enabled
A Setback function
t Time
T Temperature setpoint
Room temperature
Leaving water temperature
[0‑04] Status
Defines whether the ON/OFF instruction can be used in the
schedule timer for cooling.
This is the same as for space heating [0‑03], but the setback
function is not available.
[1] Settings are not applicable
[2] Automatic setback function
INFORMATION
This function is available for heat pump units operating in
heating mode ONLY. It does NOT exist for cooling.
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.
INFORMATION
▪ The setback function is enabled by default.
▪ The setback function can be combined with the
automatic weather dependent setpoint operation.
▪ Setback function is an automatic daily scheduled
function.
Setback configured for room temperature control
[2-01] [2-02]
A
B
T
t
21°C
18°C
A Normal room temperature setpoint
B Room setback temperature [5-03]
t Time
T Temperature
Setback configured for leaving water temperature control
[2-01] [2-02]
B
A
T
t
45°C
40°C
5°C [5-02]
A Normal leaving water temperature setpoint
B Leaving water setback temperature [5-02]
t Time
T Temperature
See field setting [5] in this chapter for temperature setpoints.
[2‑00] Status
[2‑00] Description
0 The setback function is disabled.
1 The setback function is enabled.
[2‑01] Start time
Time at which setback is started.
[2‑02] Stop time
Time at which setback is stopped.
[3] Weather dependent setpoint
INFORMATION
This function is available for heat pump units operating in
heating mode ONLY. It does NOT exist for cooling.
When weather dependent operation is active, the leaving water
temperature is determined automatically depending on the outdoor
temperature: colder outdoor temperatures will result in warmer water
and vice versa. The unit has a floating setpoint. Activating this
operation will result in a lower power consumption than use with a
manually fixed leaving water setpoint.
During weather dependent operation, the user has the possibility to
shift up or down the target water temperature by a maximum of 5°C.
This "Shift value" is the temperature difference between the
temperature setpoint calculated by the controller and the real
setpoint. E.g. a positive shift value means that the real temperature
setpoint will be higher than the calculated setpoint.