System 3; System 4; System 5 - Immergas DOMESTIC SOL 750 V2 Instructions Pour L'installation Et L'utilisation

You can choose different possibilities for the
priority of the tank loading. See the parameters
priority tank "PR Tk" for more information.

3.2.3 System 3.

System with 2 tanks, 2 pumps, 1 collectors array
and 3 sensors.
With this system you can add an extra function
with 1 sensor T4 (PT1000) (Thermostat, Coo-
ling, Antistagnation).
T1
P2 P1
T2
The loading of the tanks is authorized if the tem-
perature difference "dt" between the collector
(T1) and the tanks (T2, T3) is sufficient.
You can choose different possibilities for the
priority of the tank loading. See the parameters
priority tank "PR Tk" for more information.

3.2.4 System 4.

System with 1 tank, 1 pump, 1 valve, 2 collector
arrays with 2 different cardinal direction (ie. East
/ West) and 3 sensors. With this system you can
add an extra function with 1 sensor T3 (NTC)
(Thermostat, Cooling, Antistagnation).
P2
P1
T3
The loading of the tank1 is authorized if the tem-
perature difference "dt" between collector (T1,
T4) and the tank1 (T2) is sufficient. The valve
direction (P2) is done by the warmer collector.

3.2.5 System 5.

System with 1 collector array, 1 solar tank, 2
pump. With this system you can not add an
extra function.
P1
This system allows warming the hot water by
solar tank 1 or by two additional boilers. The
P2 and P3 contacts are used to do this function.
You will have the possibility to adjust different
levels for loading priority.
See the parameters "DHW" for domestic hot
water hot water temperature, "LEGI" for le-
gionellisis.
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T1 T4
T2
T1
T3
P3
P2
T2