Vents NK 100-0,6-1, Руководство пользователя

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Duct heater
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
LABEL.
ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN
WARRANTY LOSS.
The heaters have to be connected to the single-phase AC mains with voltage of 230 V/ 50 Hz or three-phase AC mains with voltage of 400 V/ 50 Hz
dependent on the heater model.
The electric connections must be performed with insulated, durable and heat-resistant conductors (cables, wires) with a matching cross section.
The external lead-in (230 V/50 Hz or 400 V/50 Hz) must be equipped with an automatic circuit breaker built into the stationary wiring to interrupt all the
network phases in case of a short circuit or an overload.
The location of the QF external switch must ensure free access for quick shutdown of the unit. The protection trip current must be consistent with the
maximum current consumption of the unit (see the tables of main technical parameters).
The cross section selection must account for the maximum permissible wire heating which depends on the wire type, its insulation, length and
installation method (i.e. overhead, in pipes or inside walls).
Wiring diagram types are determined by quantity of the heating elements, supply voltage characteristics, number of phases.
Wiring diagram designation key:
S1, S2
– thermal switches
En
– electrical heating elements
X1
– terminal block
X2
– ground clamp
WIRING DIAGRAM OF THE HEATER WITH ONE ELECTRICAL HEATING ELEMENT AND SINGLE-PHASE POWER SUPPLY
1
X1
S1 T°
S2
E1
X2
N
L
PE
RESET
T°
2
3
4
5
6