System 6; System 7; Extra Function; Extra 1: Thermostat Function - Immergas SOL 750 V2 Instructions For Installation And Use Manual

3.2.6 System 6.

System with 1 collector array, 1 solar tank, 2
pumps, 1 external heat exchanger. With this
system you can add an extra function with 1
sensor T3 (NTC) (Thermostat, Cooling and
Antistagnation).
T1
P1
P2
The loading of the tank1 is authorized if the
temperature difference "dt" between collector
(T1) and the tank1 (T2) is sufficient.
You can choose a time delay for the start up of
the pump between the heat exchanger and the
tank1. Default value is 1 minute to give the heat
exchanger time to heat up. See parameter "P2dy"
delay on P2.

3.2.7 System 7.

System with 1 collector array, 1 solar tank, 1
pump. With this system you can not add an

extra function.

T1
P1
The loading of the tank1 is authorized if the
temperature difference "dt" between collector
(T1) and the tank1 (T2) is sufficient.
T2
T3
P3
T2
This system allows warming the hot water, value
set by the probe T3, by the solar tank 1 or by an
additional boiler. The P3 contact is 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, "SIP" the solar inte-
gration priority and "BIP" the boiler integration
priority to correctly set the P3 contact working.
3.2.8 Extra Function.
According to the system chosen the choice
and the schematic representation of the Extra
function will be not the same for all systems.

3.2.9 Extra 1: Thermostat function.

This function is generally used to associate with
your system, an additional heat to warm up your
primary solar tank in case of the solar energy is
lacking. (See the part Extra Function).
Suggestions:
Control for gas boiler or for other heating
elements such as electrical resistor inside the
solar tank.
N.B.: In this case you must connect a relay for
switching the output.
- Extra 1" used with "System 1";
T1
P1
T2
29
T3
P3