User Manual

30
n1%, n2%:
Current pump speed
Display range 30 to 100%
Indicates the current pump speed of the corresponding pump:
- n1%: current pump speed pump 1 – primary loop
- n2%: current pump speed pump 2 – secondary loop
h P1, h P2
Operating hours counter
Display channel
The operating hours counter adds up the solar operating hours
of the respective relay (h P1, h P2). Full hours are shown on
the display.
The total operating hours can be reset. When the operating
hours channel is selected the symbol is permanently
shown in the display. The set button (3) must be pressed for
approximately 2 seconds in order to go into the reset mode
for the counter. The display symbol will be ashing
and the operating hours will be set to 0. In order to nish the
reset procedure the set button (3) must be pressed in order to
conrm.
In order to interrupt the reset procedure no button should be
pressed for about 5 seconds. The controller will automatically
return to the indication mode with the previous total.
kWh/MWh:
Heat quantity value shown
in the kWh and MWh display
channels. The sum of both
channels form the total heat
output.
The total heat quantity value can be reset. When one of the
heat quantity display channels is selected the symbol is
permanently shown in the display. The set button (3) must be
pressed for approximately 2 seconds in order to go into the
reset mode for the counter. The display symbol will be
ashing and the value for heat quantity will be set to 0. In order
to nish the reset procedure the set button (3) must be pressed
in order to conrm.
In order to interrupt the reset procedure no button should be
pressed for about 5 seconds. The controller will automatically
return to the indication mode with the previous total.
TIME:
Current time based on 24
hour clock, e.g. 15:00 = 3 pm
To set the current time:
Press button 3 for two seconds to adjust the hours
Set the hours by pressing buttons 1 and 2
Press button 3 again to set the minutes
Set the minutes by pressing buttons 1 and 2
Press button 3 in order to save the adjustments
Once the nal display channel is reached the remaining system setting channels may only be accessed by holding the
forward (2) button down for approximately 2 seconds. The following setting channels will then be shown:
Adjustment channels:
DT1O / DT20:
Switch-on temperature diff.
Adjustment range
2.0 to 40.0 °F
Recommended setting: 10.0
The controller works as a standard differential controller. It
calculates the temperature difference between the collector
sensor S1 and the tank temperature sensor S3. If this
temperature difference reaches the switch-on temperature
difference DT1O, the primary loop pump is switched on. If
the temperature difference falls below the switch-off difference
DTF, the pump is switched off.
DT F:
Switch-off temperature diff.
Adjustment range
1.0 to 39.0 °F
Recommended setting: 4.0
If the switch-on temperature difference between the upper heat
exchanger sensor S4 and the tank temperature sensor S3 is
reached (DT2O), the secondary loop pump will be switched on.