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VUT 300/550/900 PBE EC
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.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
The unit is rated for connection to single-phase AC 230 V/50 (60) Hz power mains. For electric installations use insulated durable heat-
resistant conductors (cables, wires) with the minimum wire cross section 2.5 mm
2
.
The above conductor cross section value is tentative and in practice must be based on the wire type, maximum permissible heating
temperature, insulation, length and installation method.
Connect the unit to power mains through the external automatic circuit breaker with magnetic trip integrated into the fixed wiring
system with the rated current not below the rated current consumption.
The terminal block with the prewired control unit is located inside the control unit compartment.
To connect the power and the ground cable route the cables through the airtight electric lead-in in the unit casing and connect these to
the terminal block. The wiring diagram for connection of the air handling unit to power supply is on back side of the lid.
CONNECTION TO POWER MAINS
A21 EXTERNAL WIRING DIAGRAM
1
NC
2
C
3
NO
4
C
5
6
Gnd 0-10V
7
+24V
8
GND
9
A
10
B
11
+24V
12
NO
13
C
14
NO
15
16
17
C
NO
C
P1*
1
2
PK1*
CC
U*
L1
N
PE
1
2
3
X1
SM1*
SM2
**U
Boost*
X2
CO2*
1
2
Gnd
0-10V +24V
Gnd
+24V
A
B
1
2
**U
1
2
P1*
1
2
PK1*
CC
U*
X1
SM1*
*
SM2
**U
Boost*
X2
CO2*
1
2
Gnd
0-10V +24V
Gnd
+24V
A
B
1
2
**U
1
2
Brown
Yello
w
Gr
een
W
hit
e
Power input
230 VAC
Design
Name
Type
Wire***
Note
SМ1
*
Supply air damper actuator
NO
2 x 0.75 mm
2
3 A, 30VDC/~250 AC
SМ2
*
Extract air damper actuator
NO
2 x 0.75 mm
2
3 A, 30VDC/~250 AC
РК1
*
Contact from fire alarm panel
NC
2 x 0.75 mm
2
CCU
*
Cooler control
NO
2 x 0.75 mm
2
3 A, 30VDC/~250 AC
Р1
*
External control panel
4 x 0.25 mm
2
Boost
*
Boost mode On/Off contacts
NO
2 x 0.75 mm
2
CO2
*
External CO
2
sensor
3 x 0.75 mm
2
*Is not included in the delivery set.
**The supply voltage U of the SM1, SM2 external dampers is selected depending on the type of dampers.
*** Maximum connecting cable length is 20 m.
Output parameters: terminals 12-17 – 3 A, 30VDC/~250VAC (“dry contact”).
— ELECTRIC SHOCK HAZARD!
