Daikin EKHBX030BA Installation Manual page 28

Before shipping, the set values have been set as
shown under "Field settings table" on page 35.
When exiting FIELD SET MODE, "88" may be
displayed on the user interface LCD while the unit
initialises itself.
Detailed description
[0] User permission level
If required, certain user interface buttons can be made unavailable for
the user.
Three permission levels are defined (see the table below). Switching
between level 1 and level 2/3 is done by simultaneously pressing
buttons pfi and pfj immediately followed by
simultaneously pressing buttons s and ba, and keeping all 4
buttons pressed for at least 5 seconds (in normal mode). Note that no
indication on the user interface is given. When level 2/3 is selected,
the actual permission level – either level 2 or level 3 – is determined
by the field setting [0-00].
Button
s
Quiet mode button
Weather dependent
ba
set point button
Schedule timer
pr
enable/disable button
<
Programming button
Time adjust buttons pf
i
pf
j
Inspection/test
z
operation button
[1] Weather dependent set point (heating operation only)
The weather dependent set point field settings define the parameters
for the weather dependent operation of the unit. When weather
dependent operation is active the water temperature is determined
automatically depending on the outdoor temperature: colder outdoor
temperatures will result in warmer water and vice versa. During
weather dependent operation, the user has the possibility to shift up
or down the target water temperature by a maximum of 9°F (5°C).
See the operation manual for more details on weather dependent
operation.
[1-00] Low ambient temperature (Lo_A): low outdoor
temperature.
[1-01] High ambient temperature (Hi_A): high outdoor
temperature.
[1-02] Set point at low ambient temperature (Lo_Ti): the
target outgoing water temperature when the outdoor
temperature equals or drops below the low ambient
temperature (Lo_A).
Note that the Lo_Ti value should be higher than Hi_Ti, as for
colder outdoor temperatures (i.e. Lo_A) warmer water is
required.
[1-03] Set point at high ambient temperature (Hi_Ti): the
target outgoing water temperature when the outdoor
temperature equals or rises above the high ambient
temperature (Hi_A).
Note that the Hi_Ti value should be lower than Lo_Ti, as for
warmer outdoor temperatures (i.e. Hi_A) less warm water
suffices.
Installation manual
26
Permission level
1 2 3
operable — —
operable — —
operable operable —
operable — —
operable — —
operable — —
T
t
Lo_Ti
Hi_Ti
Lo_A Hi_A
T Target water temperature
t
T Ambient (outdoor) temperature
A
Shift value = Shift value
Following table shows relation between displayed shift value and
actual used shift value.
Display °C °F
5 9
5 5 5 5
4 7.2
4 4 4 4
3 5.4
3 3 3 3
2 3.6
2 2 2 2
1 1.8
1 1 1 1
empty 0 0
– – – – 1 1 1 1 –1 –1.8
– – – – 2 2 2 2 –2 –3.6
– – – – 3 3 3 3 –3 –5.4
–4 –7.2
– – – – 4 4 4 4
–5 –9
– – – – 5 5 5 5
[2] Disinfection function
Applies only to installations with a domestic hot water tank.
The disinfection function disinfects the domestic hot water tank by
periodically heating the domestic hot water to a specific temperature.
CAUTION
The disinfection function field settings must be configured
by the installer according to local laws and regulations.
[2-00] Operation interval: day(s) of the week at which the
domestic hot water should be heated.
[2-01] Status: defines whether the disinfection function is
turned on (1) or off (0).
[2-02] Start time: time of the day at which the domestic hot
water should be heated.
[2-03] Set point: high water temperature to be reached.
[2-04] Interval: time period defining how long the set point
temperature should be maintained.
T
DHW
[2-03]
T
H
T
U
00.00 01.00
T Domestic hot water temperature
DHW
T User set point temperature (as set on the user interface)
U
T High set point temperature [2-03]
H
t Time
Indoor unit for air to water heat pump system
+9.0°F (+5°C)
0 Shift value
–9.0°F(–5°C)
T
A
[2-04]
22.00 23.00 24.00 t
[2-02]
EKHBH/X030BA
4PW62568-1 – 07.2010