Nibe FIGHTER 1127, Installation And Maintenance Instructions Manual

Page: 13 / 36

Control (also with accessories)
General
Hold the ”Channel” button down for about 7 seconds to
access the following menus.
Then press ”Channel” again until you reach the desired dis-
play mode. To change the value of a displayed variable, first
press the ”Increase” button once. A cursor will appear under
the value. The value can now be changed by pressing the
”Increase” or ”Reduce” buttons. Pressing the ”Channel”
button again moves the cursor to the value below, which in
some cases can now be changed.
Control of the electrical output for best comfort is managed
by the system. It calculates the flow temperature deficit in
the form of degree-minutes.
If, for example, the flow temperature has been 3 degrees
lower than the calculated flow temperature for 60 minutes,
3 x 60 = 180 degree minutes is registered by the control
system. Using the standard setting the number of degree
minutes should amount to 360 (60 + 300) before the external
additional heat is connected. After which the following steps
are connected with a further 100 degree minutes difference.
The output step remains actuated until the degree minute
deficit for each step has been compensated, which means
that the flow temperature must be as many degree minutes
above the calculated flow level as it was previously under.
This way the average flow temperature calculated by the
system is obtained.
Settings
10a
GM
GM (Degree-min)
[P] Current value for number of degree-minutes.
For example, this value can be changed to accelerate the
start of heating/cooling production.
Setting range: -3050 – +100.
10b
HP-°min 60
Add-°min 300
This menu is a submenu to menu 10 and is activated by using
the ”Increase” button, set the cursor under the value for
”GM” and press ”Channel”.
The first stage of additional heat (if used) is not switched on
until the sum of them in this menu
HP-°min and Add-°min
is reached. Any other steps are connected between 360 de-
gree minutes and 560 degree minutes at even intervals.
HP-°min
[P] Degree minute deficit before the heat pump can start.
Basic setting: 60.
Setting range: 5 – 250.
Add-°min
[P] Additional degree-minute deficit before the first stage
of additional heat (SH) is allowed to be switched on.
Basic setting: 300.
Setting range: 50 – 2500.
11
WW diff HP 13 °C
Diff AC 4 °C
WW diff HP
[P] The greatest temperature variation from the nominal
value for the heating medium (HM) before positive opera-
tion of the heat pump takes place.
Basic setting: 13.
Setting range: 3 – 25.
Diff AC
Temperature deviation before forced control of active
cooling
Basic setting: 4.
Setting range: 1 – 9.
12
HP-int 15 m
HWT-stop 50 °C
HP-int
[P] Min interval in minutes between heat pump starts.
Default setting: 15.
Setting range: 10 – 60.
HWT-stop:
[P] Stop temperature for water heater charging when
operating with additional heat only.
Basic setting: 50.
Setting range: 10 – 70.
11 FIGHTER 1127
For the Installer
Control (also with accessories)