Lampoassa ELI 60-90, User Manual

Page: 16 / 62

16
USER MANUAL
100% GEOTHERMAL HEAT
Use the button in the bottom left corner to return to the home screen. Use the arrow button in the bottom right corner to return to previous screen. For
instructions screen, press the ‘i’ button in the top right corner. In case of operation faults, an alarm button is displayed on the top bar.
4. Active cooling
The ground source heat pump uses the compressor to cool the
cooling circuit by transferring heat to the accumulator tank
5. Unloading the extra heat
If the temperature in the accumulator rises to high, the extra
heat is unloaded via an exchanger to the ground loop or air.
6. Switched off
The control of cooling is based on the machine’s control modes, and
control of magnetic valves and the circulating pumps. The position of the
magnetic valves in different modes are determined in the service menu.
In the service menu there is available control mode Control of the room
temperature and External, which acts as free cooling.
3.5.3.11. Linkin several ground source heat pumps
Determing the master device
If the system contains more than one geothermal heat pump, one has to
be chosen as master device. All the sensors are connected to the master
device. Program settings are defined in the factory and the master device
is marked with the MASTER-marking and other devices with SLAVE-
marking. All heat pumps can be monitored and controlled from each
heat pumps control screen.
The compressors rotation extra accessory can be enabled when the sys-
tem contains more than one geothermal heat pump. However, all the
linked ground source heat pumps have to be equipped with ÄssäControl
Compressor rotation
If multiple ground source heat pumps are used in the building, they can
be connected to each other with compressor rotation (optional equip-
ment). In such cases should be noted that all connected ground source
heat pumps are equipped with ÄssäControl control system. Compressor
rotation evens the operating hours of compressors. In the Compressor
rotation menu can the start and shutdown intervals be modified. Possible
values are for start interval values between 1...240 min (factory setting
1 min) and shutdown interval 1...240 s (factory setting 10 s).
3.5.4. Measurements
Ground source heat pump operation can be monitored using various dif-
ferent measurement data. Use the screen numbering in the bottom bar
for navigating between the
Measurements screens.
Measurements screen values describe heat pump operation under vari-
ous conditions and the values shown cannot be modified. The left-hand
column indicates current measurement values and the right-hand col-
umn the respective set values. Measurement results from all sensors,
compressor running times, and electric heating element operation times
can be browsed.