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www.ventilation-system.com
CONNECTION TO POWER MAINS
POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE UNIT MUST BE CONNECTED TO POWER SUPPLY 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.
EXTERNAL WIRING DIAGRAM FOR THE VUTR 250/350/650 P/P2/PE/P2E EC A17/A18 UNIT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Gnd R+ R- Gnd ~24V 0-10V Gnd ~24V NO NO
N
N
PE
L
L
N
L1
N
L1
NO
NO
NO
NO
2
2
2
1
1
1
PK1*
SM1*
2
1
1
2
2
1
Gnd
P1**
th-Tune
Rx+/T
x+
Rx
-/T
x-
Gnd
~
24V
~
{
{ {
N
L
2 1
SM1*
KN1*
TS1
HL1
CCU*
G
re
y
Black
Yello
w/g
reen
Blue
Br
own
Gr
een
Yello
w
Br
own
G
re
y
Whit
e
Po
wer input
230 V
AC
0-10
V indoor humidit
y
sensor c
onnec
tion
Normally opened c
on
tac
t
from r
ela
y sensor or swit
ch
— ELECTRIC SHOCK HAZARD!
Designation
Name
Model
Wire**
SM1*
Supply air damper actuator
LF230
2x0.75 mm
2
SM2*
Exhaust air damper actuator
LF230
2x0.75 mm
2
PK1*
Contact from fire alarm panel
NC
2x0.75 mm
2
CCU*
CCU control
NO
2x0.75 mm
2
P1**
Control panel
th-Tune
2x0.75 mm
2
KH1*
Contact from kitchen hood
* Devices are not supplied with the unit, are available on separate order.
** The unit can be equipped with a th-Tune control panel
*** Wire cross-section at a cable length of maximum 100 m.
• The unit is rated for connection to 230 V/50 (60) Hz power mains according to the wiring diagram.
• The connection must be made using insulated conductors (cables, wires). The actual wire cross section selection must be based
on the maximum load current, maximum conductor temperature depending on the wire type, insulation, length and installation
method.
• The external power input must be equipped with a QF 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 automatic circuit breaker must ensure free access for quick power-off
of the unit. The trip current of the automatic circuit breaker must exceed the maximum current consumption of the unit (refer to the
“Technical data” section or on the unit label). The recommended trip current of the circuit breaker is the next current in the standard trip
current row following the maximum current of the connected unit. The automatic circuit breaker is not included in the delivery set and
can be ordered separately.
