Installation manual
27
EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
1
Press the
z
button for a minimum of 5 seconds to enter FIELD
SET MODE.
The
$
icon (3) will be displayed. The current selected field
setting code is indicated
;
(2), with the set value displayed to
the right
-
(1).
2
Press the
bgi
button to select the appropriate field
setting first code.
3
Press the
bgj
button to select the appropriate field
setting second code.
4
Press the
pfi
button and
pfj
button to change
the set value of the select field setting.
5
Save the new value by pressing the
pr
button.
6
Repeat step 2 through 4 to change other field settings as
required.
7
When finished, press the
z
button to exit FIELD SET MODE.
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].
[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
Target water temperature
T
A
Ambient (outdoor) temperature
Shift value
Shift value
NOTICE
Changes made to a specific field setting are only stored
when the
pr
button is pressed. Navigating to a new field
setting code or pressing the
z
button will discard the
change made.
INFORMATION
■
Before shipping, the set values have been set as
shown under
"8.10. Field settings table" on page 39
■
When exiting FIELD SET MODE, "
88
" may be
displayed on the user interface LCD while the unit
initialises itself.
Button
Permission level
1
2
3
Quiet mode button
s
operable
—
—
Weather dependent
set point button
ba
operable
—
—
Schedule timer enable/
disable button
pr
operable
operable
—
Programming button
<
operable
—
—
Time adjust buttons
pfi
pfj
operable
—
—
Inspection/test
operation button
z
operable
—
—
Lo_Ti
Lo2_Ti
Lo_A
Lo2_A
Hi_A
Hi2_A
TA
Tt
+ 05
00
– 05
Hi_Ti
Hi2_Ti
Shift value