Operation manual
11
E(D/B)(H/L)Q011~0W1
Unit for air to water heat pump system and options
4PW51122-1
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 (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 5°C. See
"Selecting weather dependent set point operation (only in heating
mode)" on page 6
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.
[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 water to a specific temperature.
■
[2-00] Operation interval: day(s) of the week at which the
domestic 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 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.
NOTE
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.
NOTE
■
Before shipping, the set values have been set as
shown under
"Field settings table" on page 16
.
■
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
pf
i
pf
j
operable
—
—
Inspection/test
operation button
z
operable
—
—
T
t
Target water temperature
T
A
Ambient (outdoor) temperature
= Shift value
The disinfection function field settings must be configured
by the installer according to national and local regulations.
T
DHW
Domestic hot water temperature
T
U
User set point temperature (as set on the user interface)
T
H
High set point temperature [2-03]
t
Time
Lo_Ti
Lo_A
Hi_A
T
A
T
t
+ 05
00
– 05
Hi_Ti
Shift value
00.00
22.00
24.00
01.00
23.00
t
T
DHW
T
H
T
U
[2-02]
[2-03]
[2-04]
