10
C 2. 1 Wiring instructions:
1. Select the necessary hydraulic variant
(D.1 - Hydraulic variants).
2. Open the controller as described in C.1.
3. Strip the cable by 55 mm max., insert
and fit the cable strain relief. Strip the last
8-9 mm of all the wires (Fig. C.2.1).
4. Open the terminals using a flat
screwdriver (Fig. C.2.1.) and wire the leads
following the diagram.
5. Refit the upper housing part and fasten
with screw.
6. Switch on mains voltage and place cont-
roller in operation.
C.2.1
Installation
C.3 Installing the temperature sensors
The temperature sensor cables must be routed separately from mains voltage cables!
The controller operates with Pt1000 temperature sensors.
Max. sensor lead length for S1 and S5 is 30 m and its cross section at least
0.75 mm
2
. Max. sensor lead length for S2 to S4 is 10 m and its cross section at least
0.75 mm
2
. Make sure there is no contact resistance in the wiring!
Select the proper location for the sensor where it feels the right temperature.
Use only immersion sensors. Pipe-mounted sensors only in exceptional cases.
Make sure that the terminals of extension cables and sensors are properly tightened.
Instructions for clamps:
1. Insert screwdriver into the upper hole. Push the lock
clamp inside down. Keep the screwdriver in this position.
2. Insert the stripped cable into the lower opening.
3. Remove screwdriver. The clamp will lock the cable.
C.2.2
Caution
Warning
When connecting high efficiency pumps with PWM, it is necessary to respect the
right wiring (i.e. the terminal “PWM out” on the controller with “PWM in” on the
pump, and “GND” on the controller with “GND” on the pump).
Warning
