www.sentera.eu
MIW-ECH-8-DM-EN-000 - 22 / 08 / 2022
6 - 10
ECH-8-DM
CONTROLLER FOR WATER
HEATERS / COOLERS WITH EC FAN
WIRING AND CONNECTIONS
L, N, PE
Supply voltage 85 – 305 VAC / 50 – 60 Hz
PE, N, L1
Unregulated output to control an external water valve or electric
heater - Imax 10 A
TEMP
Optional temperature sensor PT500 (type FLTSN-P500-010 or
similar)
Ao, Gnd
Analogue output to control EC fan speed (0 - 6 VDC or 0 - 10 VDC)
A, /B
Modbus RTU communication
ATTENTION
Make sure you use cables with an appropriate diameter to connect the fans to
the ECH controller.
MOUNTING INSTRUCTIONS IN STEPS
Before you start mounting the unit, read carefully
“Safety and Precautions”
and follow
these steps:
1.
Unscrew the front cover and open the enclosure.
2.
Fix the unit onto the wall or panel using the provided screws and dowels. Mind
the correct position and mounting dimensions as shown in
Fig. 1
and
Fig. 2
.
Fig. 1 Mounting dimensions
Fig. 2 Mounting position
128,5
180
208
92,5
98
115
Correct
Incorrect
6
TEMP.
5°
20°
30°
35°
10°
25°
15°
6
TEMP
.
5°
20°
30°
35°
10°
25°
15°
3.
Insert the cables through the cable glands and do the wiring according to the
wiring diagram (see
Fig. 3
) while adhering to the information from section
“
Wiring and connections
” above.
3.1
Connect the power supply cables to the terminals.
3.2
Connect the cables of the load (fans and valve/heater) to the terminals.
3.3
Connect the power earth cables to the dedicated places.
3.4
Install the temperature probe in such a way it measures the temperature in
the air of the desired area.
Cables must be less than 4m.