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CONNECTION TO POWER MAINS
ELECTRICIAN WITH A WORK PERMIT FOR THE ELECTRIC UNITS UP TO 1000 V AFTER
The connection must be made using durable, insulated and heat-resistant conductors (cables, wires).
The external power input must be equipped with an automatic circuit breaker built into the stationary wiring to open the circuit in the
event of overload or short-circuit.
The position of the external circuit breaker must ensure free access for quick unit power-off.
The trip current of the automatic circuit breaker must exceed the maximum current consumption of the unit (refer to the "Technical
data" section or to the unit label). It is recommended to select the rated current of the circuit breaker from the standard series, following
the maximum current of the connected unit.
The circuit breaker is not included in the delivery set.
The units are designed to be powered from a single-phase 230 V AC, 50 Hz network.
The conductors' cross section value is indicative. The actual wire cross section selection must be based on the type of wire, its maximum
allowable heating, insulation, length and installation method.
To connect the power supply and external devices, unscrew the two screws on the cover of the control unit and remove the cover, as
shown in the figure in the "Mounting and set-up" section.
Route the power supply cable and the cables for connecting the remote controller and the external temperature sensor through the
cable glands to the control unit and connect them according to the wiring diagram.
Attention! In order to ensure correct operation of the unit's control automation, the external temperature sensor must be
installed in the supply air duct before the unit in the airflow path.
The sensor is included in the delivery set.
Wiring diagrams for power supply and external devices are shown in the figures below.
MPA 700 W EC A30/31/32, MPA 1000 W EC A30/31/32, MPA 1500 W EC A30/31/32, MPA 2000 W EC A30/31/32
Electric shock hazard!
X2
X2
+24V GND Rx- Rx+ GND
1
2
3
A3**
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DISCONNECT THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
CONNECTION OF THE UNIT TO POWER MAINS IS ALLOWED BY A QUALIFIED
CAREFUL READING OF THE PRESENT USER'S MANUAL.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
X1
2,5А
P
E
N
F1
N
L1 F2 F3 F4
Power input
~220V, 50Hz
out
X2
X2
A1
+24V
GND
0-10V
4
5
1
6
Y2 Y3
C CU *
SМ 3*
MANUFACTURER'S LABEL.
SM_L SM_L1 SM_N
L
0,5А
5А
2,5А
2,5А
1
2
М 2*
SM 1*/SM 2*
out
X2
A1
GND GND
D_in
0-10V
8
9
DI3
20
PK1*
X1
X1
L
N PE
K2:A2 K2:A1
3
4
5
6
K2*
М 3*
or
SM 1*/SM 2*
A1
X2
A1
D_in
+24V GND
DI4
1
2
21
DD 1*
B1*
7
8
in
X2
A1
GND
NTC
0-10V
B1
10
B4
RT1*
17
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