Immergas 3.022648 Instructions For Installation And Use Manual page 30

- Extra 1 used with "System 2";
T1
T4
P1
P2
T2
3.2.10 Extra 2: Cooling function.
Te cooling function is generally used for cooling down
the primary solar tank at high solar irradiation. With this
function you could store excess energy on another heat
storage unit (swimming pool or other basin for example).
(See Extra Function part).
- Extra 2 used with "System 1";
T1
T3
P3
P1
T2
P3
T3
- Extra 2 used with "System 2";
T1
P1
P2
3.2.11 Extra 3: Diff. control function.
The Diffcontrol function can be used to transfer heat
energy of one tank to another tank separately to the solar
loading function.
With this extra function you could control the temper-
ature on both tanks and you can choose the different
setting levels to adapt this function according to your
needs. (See Diff. control function part).
- Extra 3 used with "System 1";
T1
P1
30
T4
T3
P3
T2
T4
P3
T3
T2