3
Functional Description
LK 160 SmartBio is an electronic differential temperature controller for
energy efficiency in heating systems with storage tanks. It has seven
preset hydraulic systems for different installations. The selected hydrau-
lic system and operating status is shown on the backlit colour display.
Controls and settings are easily carried out using the rotary encoder and
the esc-button. SmartBio can control an additional heat source such as
immersion heaters or other heat sources. This control function has an
adjustable start delay which additionally increases the efficiency of the
heating system.
Wiring
Temperature sensors type Pt1000 must be used. Each temperature
sensor has two connectors which are equivalent, i.e. interchangeable.
Thus, polarity reversal is not an issue. The sensor cables can be
extended up to 100 meters. To this effect, a cable cross section of 2 x
1,5 mm² is recommended.
SmartBio must not be used alone as a thermostat for immersion
heaters or burners. It must be connected through existing boiler and
o verheating thermostats.
GB
ENGLISH
Max. cross sections to be connected
Cable with end sleeve 0,25 to 0,75 mm²
Solid wire
0,50 to 1,50 mm²
Multi stranded
0,75 to 1,50 mm²
Terminal block Power
Design
3 spring-type terminals PE, N and L
Voltage
230 VAC ± 10%
Frequency
50 Hz ± 1%
Power consumption
3,5 W
Fuse
T 2A/250 V 5 x 20 mm
Terminal block RO1 / RO2: Triac outputs
Design
3 spring-type terminals each PE, N
and
L
Output voltage
230 VAC ± 10%
Output power
200 VA max.
Output current
1 A max.
Load
1
W
min.
Terminal block TS1 / TS2 / TS3
Design
2 spring-type terminals each
Inputs intended for
Pt1000 temperature sensors
Terminal block TS4
Design
2 spring-type terminals
Intended for
PWM-signal 100 Hz … 2 kHz or
analog
output 0 … 10 V max. 10 mA
Terminal block REL: Floating change-over contact
Design
3
spring-type
terminals
Switching voltage
253 VAC max.
Switching capacity
230 VA max.
Switching current
1 A max.
If outputs on the controller are not assigned, these can be used
as thermostats. Please, see Thermostat Functions page 45
.
Accessories
• LK 970 ThermoBac DB double-acting check valve (System 1.1)
• LK 824 ThermoVar thermic double-acting check valve
(System 1.2)
• LK 820 ThermoVar thermic valve (System 2.2)
• LK 810 ThermoMat loading unit (System3.2)
• LK 525 MultiZone zone valve (System 4)
• Sensor pocket 150 mm Ø 15 mm
Further information about accessories in the LK Product
Catalogue.
Technical Data
Software version
3.02
Mounting
Wall mounting
Width x Height x Depth
115 x 173 x 46 mm
Weight 370
g
Type of protection
IP 20
Operating temperature
0 - 40°C, non-condensa-
tion
Handling
via rotary encoder and ESC
push-button
Display
TFT backlit colour dis-
play 47 x 35 mm
Standby power consumption
1,74 W
Annual auxiliary electricity consump-
tion Q aux in terms of fi nal energy
15 kWh
Danger!
Only qualifi ed electricians should
carry out electrical work! Whenever work is per-
formed on the open terminal cover, all poles of the
power supply must be reliably disconnected.
Items included
• LK 160 SmartBio differential temperature controller
• Pt1000 temperature sensor max 105°C with 4 m cable, 3 pcs
