4
EN-XXX_ECOplus-Solar-Storage_MA-201026-1WA10603
Figure 4 Drinking water connections (example):
9
Air vent;
10
Magnesium protection anode with cable;
11
Cold water;
12
Hot water;
13
Safety
unit;
14
Circulation pump;
15
Thermostatic mixer;
16
Check valve;
17
Filling and emptying tap
3.3 Connecting the Domestic Water
Circuit
●
(Fig 4) Connect a safety unit (13) to the cold water sup-
ply and ideally position above the storage This allows
for easy maintenance of the safety group without having
to
empty
the
tank
The storage tank might be damaged without safety
group or when the safety group is closed off!
The water expands when heated and thus high over-
pressure can build up in the system Ensure that there
is no shut-off valve between cylinder and safety valve
●
Installation of a filling and emptying tap at the lowest
storage connection (17)
●
Fit a thermostatic mixer (15) This assures that even
when the storage tank is heated to its maximum tem-
perature the DHW temperature set at the thermostatic
mixing valve will not be exceeded If no thermostatic
mixer is fitted, maximum vessel temperature must
be limited to 65 °C at the solar controller
Serious danger of scalding!
The solar installation may heat the storage water to tem-
peratures of up to 95 °C.
.
The installation of a thermostatic mixing valve limits the
tap temperatures to a safe temperature level
●
Installation of a circulation pump if required (14) The
return should be taken from close to the tapping point
The circulation pump should govern circulation ac-
cording to water temperature (temperature sensor)
and with a timer
●
The circulation control should be implemented in the
most energy saving fashion according to the state of
the art
●
Installation of an air vent (9) Part of the ECOplus con-
nection kit, part no 139 002 07
13
15
14
17
11
12
16
9
10
8 Cold water connection
3 Circulation connection
CONVECTROL
part of the ECOplus
connection kit,
part no 139 002 07
1 Hot water connection
16
9
10
8 Cold water connection
3 Circulation connection
1 Hot water connection
11
