KT-Elektronik SOL3-3, Installation And Owner'S Manual, Page: 68 / 88

Installation and operating manual KT-Elektronik
11.3.1 Connecting the sensors
Wires with a minimum diameter of 2 by 0.5 mm² may be connected to the terminal strips
on the mounting panel.
Connecting the actuators
3-point-/2-point duty outputs: moisture proof cables with a minimum diameter of 1.5 mm²
are to be connected to the terminals of the controller output. It is recommended to check
the direction of rotation at start-up time.
Note: The motor actuators are not automatically supplied with power from the
controller. They can be connected to an external power source via terminal 28. If this is
not desired, jumper have to be set from terminal 18 to 28.
11.3.2 Connecting the pumps
All wires with a minimum diameter of 1.5 mm² are to be connected to the controller
according the wiring diagram. The relay outputs are isolated/potential-free contactors,
thus not supplied with power from the controller. Therefore, the terminals 20, 22 and 25
– and eventually 28 have to be connected to L1 (terminal 18).
11.3.3 Legend for connection diagram
CRF Collector return-flow sensor CP Collector pump
CVF Collector flow sensor SP Storage (charging) pump
SF Storage sensor CUV Collector switching valve
CF Collector sensor SUV Storage switching valve
VST-Imp. Volume flow impulses RUV Return flow switching valve
CTP Collector exchanger pump
NH Auxiliary heating
ZP Domestic water-
circulation pump
flow 0..10V output for
pump rotation speed
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