6
en
2.2
Electrical connection
WARNING!
Electric shock!
Upon opening the housing, live parts are exposed!
Î
Always disconnect the device from power supply
before opening the housing!
ATTENTION!
ESD damage!
Electrostatic discharge can lead to damage to electronic com-
ponents!
Î
Take care to discharge properly before touching the
inside of the device! To do so, touch a grounded sur-
face such as a radiator or tap!
Note
Connecting the device to the power supply must always be the last step
of the installation!
The controller is supplied with power via a mains cable. The power supply of the
device must be 100 … 240 V~ (50 … 60 Hz).
The controller is equipped with 1 electromechanical relay to which a load such as a
pump, a valve, etc. can be connected
• Relay 1
7 = normally open contact
8 = normally closed contact
9 = neutral conductor (N)
Grounding terminal
⌯
(common terminal block)
• Speed control of a HE pump is possible via a PWM signal. The pump has to be
connected to the relay (power supply) as well as to the PWM output of the
controller.
For connection, use the terminals marked PWM and GND.
• Connect the temperature sensors (S1 and S2) to the corresponding termi-
nals with either polarity:
S1 / GND
S2 / GND
• The mains connection is at the terminals:
10 = neutral conductor (N)
11 = conductor (L)
Grounding terminal
⌯
(common terminal block)
3
Operation and function
3.1
Flashing codes
The operating control lamp indicates the current status of the controller.
Colour
Permanent
Flashing
Fast flashing
Green
Device operational, loading
inactive
Loading active
Antifreeze function
active
Red
Maximum temperature
limitation
Sensor defective
Red/green
Relay in manual mode
Off
No mains supply
3.2
DIP switches and potentiometres
A
ON
OFF
1
2
3
4
ON
OFF
1
2
3
4
C
B
D
E
ON
OFF
1
2
3
4