LK Armatur SmartBio LK 160 Manuel D'instruction page 6

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Hydraulic system 3.1 – Heat source and storage tank
Hydraulic system 3.1 is for heating installations where the heat
is transferred from a heat source to a storage tank. When the
temperature TS2 has fallen below the set value ST, SmartBio
will activate the heat source REL. Once temperature TS1 has
reached the set value BT and TS1 is above TS2, charge pump
RO1 will start.
When TS3 has reached the set value SB, the heat source will be
deactivated and the pump will stop after the delay PO.
The pump will also stop if TS2 is above TS1 or TS1 has fallen by
hysteresis CH below BT. To reduce the amount of burner starts,
the restart delay CRD can be set.
Sensor TS1 is mounted in a sensor pocket in the upper part of
the heat source. Sensor TS2 is mounted in a sensor housing in
the upper part of the storage tank. Sensor TS3 is mounted in the
lower part of the storage tank.
N.B! The sensors must not be placed on the supply pipe as
this might disturb the function.
Hydraulic system 3.2 – Solid fuel heating boiler
with loading unit and storage tank
LK 810 ThermoMat loading unit ensures a high return tem-
perature to the solid fuel boiler which increases the effi ciency
of the system. Tarring and condensation are prevented which
prolongs boiler life. Basic functions as in hydraulic system 3.1.
Abbreviations in hydraulic system 3.1 and 3.2
In-/outputs
TS1 Sensor – Heat source
TS2 Sensor – Storage tank top
TS3 Sensor – Storage tank bottom
TS4 Control signal - HE pump (optional)
RO1 Output – Charge pump
RO2 Output – Thermostatic function (optional)
REL Relay – Burner
Parameters
BT Charge temperature
ST Storage tank, set temperature at top
SB Storage tank, set temperature at bottom
CH Charge temperature hysteresis
PO Charge pump off delay
CRD Burner restart delay
Hydraulic system 3.1
Heat Source
Hydraulic system 3.2
Heat source
6
Preset value
70°C
60°C
70°C
2 K
3 min
3 min
Storage tank
Storage tank
Hydraulic system 4 – Main storage tank and
domestic hot water tank
Hydraulic system 4 gives priority to heat in the upper part of the
main tank. This enables a fast transfer of heat to the domestic hot
water tank. SmartBio controls the charge pump to the domestic hot
water tank, the zone valve of the main tank and the circulator in
the heating loop. Charge pump RO2 will start when the tempera-
ture TS1 has exceeded temperature TS2 by the charge difference
CD and temperature TS2 has fallen by the domestic water hystere-
sis DH below the set temperature DW. Charge pump RO2 will not
be turned off until TS2 has reached DW or TS1 has fallen by charge
hysteresis CH below TS2. When TS1 has fallen by 2°C below set
temperature SP, circulator REL stops, zone valve RO1 opens. When
TS1 has reached SP, the circulator starts, the zone valve closes and
the entire water volume of the main tank is used.
Sensor TS1 is mounted in a sensor pocket in the upper part of the
main tank. Sensor TS2 is mounted in a sensor housing in the domestic
hot water tank.
Sensor TS3 is mounted in an optional place. It is only used for
temperature display.
N.B! The sensors must not be placed on the supply pipe as this
might disturb the function.
Abbreviations in hydraulic system 4
In-/outputs
TS1 Sensor – Main storage tank
TS2 Sensor – Domestic hot water tank
TS3 Sensor – Temperature display (optional)
TS4 Control signal - HE pump (optional)
RO1 Output – Zone valve
RO2 Output – Charge pump
REL Relay – Heating loop circulator (COM-NC)
Parameters
DW Domestic hot water tank, target temperature
SP Charge temperature
DH Domestic hot water hysteresis
CD Charge temperature difference, main storage tank 5 K
CH Charge temperature hysteresis, main storage tank 2 K
Pump restart delay
Hydraulic system 4
Main storage tank
Preset value
60°C
43°C
6 K
0,5 min
Domestic hot
water tank
Circulator