13
CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
CONNECTION OF THE UNIT TO POWER MAINS IS ALLOWED BY A QUALIFIED ELECTRICIAN
WITH A WORK PERMIT FOR THE ELECTRIC UNITS UP TO 1000 V AFTER CAREFUL READING OF THE
PRESENT USER’S MANUAL.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER’S LA-
BEL. ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID THE
WARRANTY.
Connect the unit to single-phase AC 230 V / 50-60 Hz power mains by using the pre-wired power cord with the Euro Plug, pre-wired at the
factory.
Connect the unit to power mains through the external automatic circuit breaker with a magnetic trip integrated into the fixed wiring sys-
tem with the rated current not below the rated current consumption (refer to the table on p. 6).
The terminal block with the pre-wired 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 the back side of the lid.
Design.
Name
Model
Wire
Cooler DX cooler
NO
2 х 0,75 mm
2
DD1
Pump dry run protection relay
NC
2 х 0,75 mm
2
M4
Circulation pump of the heater
max 0.3 kW
2 х 0,75 mm
2
SM1
Supply air damper actuator
LF230
2 х 0,75 mm
2
SM2
Exhaust air damper actuator
LF230
2 х 0,75 mm
2
SM4
3-way valve actuator
LR24 SR
2 х 0,75 mm
2
PK1
Contact from fire alarm panel
NO
2 х 0,75 mm
2
P1**
Control panel
2 х 0,75 mm
2
TE1
Intake air temperature sensor
2 х 0,75 mm
2
1. The unit delivery set includes P1 and TE1 only.
2. ** - Max. connecting cable length is 20 m!
L
— ELECTRIC SHOCK HAZARD!
X1
N PE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 2223
L N PE
L
M4
N PE
1 2 3 c nc N L N L
c no c no
Gnd
Gnd Out
+12V
B A
Gnd
+12V
B A
E+
Gnd Out
E+
TE1
P1
1
SM4
2 3
-
+
Y
1
SM1
2
N
L
1
SM2
2
N
L
1
DD1
2
1
PK1
Cooler
(no
-c
on
tac
ts)
Po
w
er input
230 V
AC
2
