31
Display
The function affects the window contrast and brightness. On delivery the max
setting 10 is set on both.
Alarm during start up
During start up there may be an alarm regarding Low temperature in condenser.
The cause is that the fi lled water is too cold (colder than +5ºC).
Check the sight glass inside the heat pump. Bubbles may appear in the sight
glass for a few minutes during start up. The bubbles should then stop. If it
bubbles continuously this is a fault symptom which is probably due to insuf-
fi cient refrigerant.
Commissioning the power guard
Settings for the power guard are made using a number of windows, which are
reached by selecting Advanced menu/ Additional heat settings/ Electric addi-
tional heat settings/ Power guard in service mode.
The following functions are available:
Power guard Off/On
Select Yes to activate the Power guard. Factory setting is Off. Select Off to
deactivate.
Supply voltage
Set the actual mains power supply here. The factory setting is 400V (3*400V).
Main fuse
Select the main fuse used in the house. Factory setting is 16A. Max = 55A.
Change to at least 25A at 13.5 kW 290 A/W.
NOTE! The main fuse size for the house must be given, not the fuse size for the
heat pump.
Display/Correction of current transformer
Here you can see how much current the house utilises per phase. There is also
the possibility of correcting the displayed value by 5A up or down.
Current margin
Here you state how great the margin to the set main fuse must be to allow recon-
nection of a disconnected electric element stage. Factory setting is 0.5A. Min =
0.0 and max = 1.0A.
Time from tripped power guard to possible reconnection
This is the time it takes between the power guard deploying and any stage being
permitted to reconnect. The factory setting is 60 secs. Min = 5 and max = 300
secs.
Time between possible reconnections
This time indicates the length of time between the fi rst reconnected stage and
the remaining stages, that is how quickly reconnection occurs. The factory
setting is 60 secs. Min = 5 and max = 600 secs.
Commissioning
Sight glass
To Next Page
Loading...
Need help?
General
