11VEDEX 3300
For the Installer
Docking to the accumulator
EXP
AV
LV
SÄV
AV
AVT
AV
BV
SV4
CP2
SV1
SV2
T
T
T
VVB
ACCUACCU
T
ACCU
ELK
RC
AV
AVT AVT AVT
AV
AV
CP1
AV
Docking to several tanks with thermal charge control and open expansion tank
When the boiler’s temperature exceeds the set charge
temperature (for example, 75°C) the charge pump starts,
which then transfers heat from the boiler to the accumula-
tor. The thermal valve ensures that the water temperature
to the bottom of the boiler does not drop so much that
there is a risk of condensation.
Abbreviations
AV Shut-off valve
AVT Draining valve
BV Non-return valve
CP1 Charge pump
CP2 Circulation pump
ELK Immersion heater
EXP Level vessel/expansion vessel
LV Venting valve
MV Motor valve
RC Control box
SV1 Shunt valve
SV2 Mixer valve
SV4 Thermal valve
SÄV Safety valve
TG Temperature sensor
VVB Hot water heater
Docking to the accumulator
NOTE! These are outline diagrams. Actual installations must be planned according to applicable standards.
Docking to two tanks with thermal charge control and open expansion tank
EXP
AV
LV
SÄV
AV
AVT
AV
BV
SV4
CP2
SV1
SV2
T
T
T
VVB
ACCUACCU
ELK
RC
AV
AVT AVT
AV
CP1
AV
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