User Parameters - Compit SOLARCOMP 911 Installation And Operating Instructions Manual

VARIANT no. 4 - tank loaded from the solar panel plus extra heat
discharge.
Fig. 6 Controller display for Variant no.4
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 discharge
If temperature T3 exceeds
the excess heat (pump symbol displayed). Heat discharge stops if T3 drops below
1°C. This function maintains DHW temperature within safe limits.
NOTE: If HOLIDAY MODE is selected in this variant, heat discharge works as usual.
When the LEGIONELLA function is selected, heat discharge is off.
Basic settings
Set temperature of DHW tank. If the tank temperature (T2 or T3)
exceeds this value, the loading stops.
T1-T2 difference; when exceeded, the tank loading pump is switched
on.
If T1-T2 difference drops below this value, the tank loading pump will
switch off.
If this temperature is exceeded by the tank (T3), heat discharge is
started.
Enabling of a sound alarm.
0 – sound alarm disabled, 1 – sound alarm enabled.
12
.
- even if the
+ 1°C, the controller starts P2 pump to discharge
SOLARCOMP 911 model u6.x, Rev. 2

User Parameters

Set temperature of DHW tank. If the tank temperature (T2 or T3) exceeds
this value, the loading will stop (Setting range 0 to 90°C, step 1°C, default
setting: 50°C).
T1-T2 difference; when exceeded, the tank loading pump will switch on.
(Setting range 0 to 50°C, step 0.2°C, default setting: 10°C).
Note: ZΔ1 must be at least 1°C higher than ZΔ2.
If T1-T2 difference drops below this value, the tank loading pump will
switch off. (Setting range 0 to 50°C, step 0.2°C, default setting: 2°C).
Note: Minimum ZΔ2 value should not be lower than 2°C.
Variant no. 1 not available
Variant no. 2 not available
Variant no. 3 tank temperature T3 below which the coil is activated
Variant no. 4
tank temperature T3 exceeding of which activates heat discharge
Variant no. 5
tank no. 2 temperature T4 exceeding of which activates heat transfer
(Setting range 0 to 90°C, step 1°C, default setting: 45°C)
Only in variant no. 5: T3-T4 difference exceeding of which activates P2
pump (Setting range 0 to 50°C, step 0.2°C, default setting 4°C).
Note: 2Δ1 must be at least 1°C higher than 2Δ2.
Only in variant no. 5: if T3-T4 difference drops below this value, P2 pump
will switch off (Setting range 0 to 50°C, step 0.2°C, default setting: 2°C).
Enabling of a sound alarm.
0 – sound alarm disabled, 1 – sound alarm enabled (default setting: 0)
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SOLARCOMP 911Operating Instructions model u6.x, Rev. 2 17