Collector Choice; Maximum Temperature Of Collector; Overheat Protection; Cooling - Immergas DOMESTIC SOL 750 V2 Instructions Pour L'installation Et L'utilisation

- Extra 4 used with "System 1";
T1
P1
T2

3.3 COLLECTOR CHOICE.

"TubE" parameter (Default value "off ").
Once the parameter "TubE" selected, press on
the navigation key right (
of the collector installed.
- Now select "on" if your installation uses a
vacuum pipes collector. (This Function could
also be used with flat collector when the sensor
is mounted on the external parts of the collec-
tor). This function works in the following way.
Each 30 minutes the pump will be activated 40
seconds to measure the correct value on the
collector to avoid short charge cycle.
- Select "off " if your installation works with a
flat collector in normal condition of uses.
3.4 MAXIMUM TEMPERATURE OF
COLLECTOR.
"ColM" parameter (Default value "120").
- Setting level to start the overheat protection
for the collector. (Adjustable 110 to 150°C with
factory value 120°C).

3.5 OVERHEAT PROTECTION.

"OvrH" parameter (Default value "On").
This function will stop all collector circulations
(P1 and P2) when the collector temperature in-
crease above "ColM" plus an offset value (+10°C
default value, can be changed). This function is
used to protect the elements of the installation
(Pipe, fitting, ring rubber..)..
▶
+) to choose the type
- To activate the function, press (
the "on".
- Now you will have the possibility to adjust the
offset level.
"Ovrt" parameter (Default value "20°C").
This offset is generally used to avoid a too quick
reaction of the overheat function (particularly
interesting with the vacuum pipes collector).
(Adjustable +10°C to +30°C with factory value
+10°C).
N.B.: For safety reasons the overheat protection
should always be on ("on").

3.6 COOLING.

"Cool" parameter (Default value "On").
This option is used to protect the collector liquid
and works in the following way. It activates the
solar pump P1 or P2 if temperature on the col-
lector arrays T1 or T4 exceeds the "Max temp"
value even if the set maximum temperature in
the tank is exceeded. The circulation stops when
temperature has dropped 10°C. (The pumps will
be stopped if the water temperature in the tank
reaches 90°C).
"Rcoo" parameter (Default value "On").
When the water temperature inside the tank is
above the setting level "Maxtemp tank1" and
the collector temperature is 10°C under the
pump is activated to cool the tank through the
collector. The pump will be turned off when the
water temperature inside the tank is down to
the setting level "tkM1" or when the difference
between the tank and collector array temperature
is below 2°C.

3.7 FREEZE PROTECTION.

"FrEZ" parameter (Default value "off ").
This option will keep the solar panel temperature
T1 or T4 above the Freeze setting level "Frzt" by
activating the pump P1 or P2.
31
▶
+) to select