Detailed Description - Daikin EKHBX008BB3V3S Installation Manual

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 enable/
pr
disable button
<
Programming button
pfi
Time adjust buttons
pfj
Inspection/test
z
operation button
Installation manual
27
Permission level
1 2 3
operable — —
operable — —
operable operable —
operable — —
operable — —
operable — —
[1] Weather dependent set point
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: low 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 5°C. See the
operation manual for more details on weather dependent operation.
■
Field settings for heating 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
low 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.
■
Field settings for cooling operation
■ [1-05] Weather dependent for cooling function enable (1)/
disable (0)
■ [1-06] Low ambient temperature (Lo2_A): low outdoor
temperature.
■ [1-07] High ambient temperature (Hi2_A): high outdoor
temperature.
■ [1-08] Set point at low ambient temperature (Lo2_Ti): the
target outgoing water temperature when the outdoor
temperature equals or drops below the low ambient
temperature (Lo2_A).
Note that the Lo2_Ti value should be higher than Hi2_Ti, as
for low outdoor temperatures (i.e. Lo2_A) less cold water
suffices.
■ [1-09] Set point at high ambient temperature (Hi2_Ti): the
target outgoing water temperature when the outdoor
temperature equals or rises above the high ambient
temperature (Hi2_A).
Note that the Hi2_Ti value should be lower than Lo2_Ti, as
for warmer outdoor temperatures (i.e. Hi2_A) colder water is
required.
T t
Lo_Ti
Lo2_Ti
Hi_Ti
Hi2_Ti
Lo_A
Lo2_A
T Target water temperature
t
T Ambient (outdoor) temperature
A
Shift value Shift value
+ 05
00 Shift value
– 05
Hi_A T A
Hi2_A
EKHBX008BB3V3S
Indoor unit for air to water heat pump system
4PW62597-1 – 10.2010