Advanced Parameter Settings - Compit SOLARCOMP 911 Installation And Operating Instructions Manual

Advanced Parameter Settings

Service parameters can be modified after entering the service code given on the last
page of these Instructions. If necessary, the installer can remove the last page to protect
important settings from unauthorized access.
Depending on the operation variant selected, the controller will display relevant
temperatures. All temperature readings are explained below.
solar panel temperature T1, the sensor symbol near the solar
panel is flashing
tank bottom zone temperature T2, relevant sensor symbol
near the tank is flashing
tank top zone temperature T3, relevant sensor symbol near
the tank is flashing; if the controller works in variant no. 1, T3
is not displayed.
T1 - T2 temperature difference (between the panel and tank
bottom zone)
temperature T4 (auxiliary tank). Displayed only in variant no.
5.
T3 - T4 temperature difference (between the tank top and the
tank to which the heat is transferred), displayed only in variant
no. 5.
MOC – current power obtained from the solar panel.
Value without a comma is expressed in watts [W]. Value with
a comma is expressed in kilowatts [kW].
L0 – current day energy meter in kilowatt-hour [kWh]
L1 – previous day energy meter in kilowatt-hour [kWh]
kWh – kilowatt-hour meter
MWh – megawatt-hour meter
Parameter access code. To edit user parameters select code
99. To go to manual mode select code 105.
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Total energy obtained equals
the sum of MWh and kWh
meters.
SOLARCOMP 911 model u6.x, Rev. 2
VARIANT no. 5 - tank loaded from the solar panel with heat transfer to
auxiliary tank (based on temperature difference).
Fig. 7 Controller display for Variant no.5
Tank loading
If the temperature difference between the solar panel and the tank (T1-T2) exceeds
, the controller will switch on the tank loading pump (pump symbol displayed) at full
speed. If the temperature difference drops below the set parameter, the controller will
reduce the pump's speed. If, despite the reduced speed, T1-T2 temperature difference
drops below , the pump will be switched off. It can be switched on again only after
the temperature difference (T1-T2) exceeds
The loading of the tank stops when tank temperature T3 exceeds
temperature difference between the panel and the tank (T1-T2) is big enough for the pump
to run.
Heat transfer to tank no. 2 (buffer tank). P2 pump on.
Heat transfer with P2 pump is started when the temperature difference T3-T4 is lower
than and temperature T4 in tank no. 2 is lower than
switched off when the temperature difference drops below
in tank no. 2 exceeds + 1°C.
NOTE! If HOLIDAY MODE is selected in this variant, heat transfer works as usual.
SOLARCOMP 911Operating Instructions model u6.x, Rev. 2
.
- even if the
- 1°C. P2 pump is
or when temperature T4
13