11
CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY OPERATIONS. THE UNIT MUST
BE CONNECTED TO POWER MAINS BY A QUALIFIED ELECTRICIAN. THE RATED ELECTRICAL
PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER’S LABEL.
The unit is rated for connection to single-phase AC 230 V / 50 Hz power mains.
The unit has a power cord with a plug to connect to a standard grounded outlet. The power cord is pre-wired to the terminal block.
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 external switch location must ensure free access for quick shutdown of the unit.
The thermal fuse protects the unit circuit against overloading. In case of an overload or a short circuit the thermal fuse blows. To replace
the thermal fuse disconnect the unit from power mains, eliminate the cause of overload or short circuit, replace the thermal fuse and check
the installation.
The wiring diagram of the unit is shown in the fi gure below.
The TS1 thermostat relay in the unit casing provides freeze protection of the heat exchanger during cold season (see the wiring diagram).
In case of a freezing danger the supply fan is turned off and the heat exchanger is warmed up with warm extract air fl ow. To set the thermostat
operation temperature turn the control knob until reaching the desired value. The threshold switching value is set individually depending on
the operating conditions of the unit. The recommended thermostat set point is +3º C (factory setting).
WIRING DIAGRAM
Low 1
Kon1
1
Kon2
2
3
4
Brown M1
5
Cap1
6
Cap2
7
Black M1
8
Black M2
9
Cap2
10
Cap2
11
Brown M2
12
Blue M1
13
Term
14
Term
15
Blue M2
16
Med 2
G0 3
High 4
~24V 5
K1
6
K2
K3
N
L
X1
X2
Adjustment of the Low Speed mode
Adjustment of the Medium Speed mode
M1
supply fan
motor
M1
extract fan
motor
SW1
W1
TS1
3
4
16
17
18
19
5
6
13
7
12
C
t°
2
14
15
8
Two-wire
control panel
~230V
TR1
Low
Stand by
Med
SW2
~24V
Thermostat
9
10
1
11
2
2
9
10
10
2
9
11
X3
X4
X6.1
X6.2
X5.2
X5.1
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID
THE WARRANTY.
Summary of Contents for VUE2 200 P
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