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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.
CONTROL
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
The unit is rated for connection to single-phase AC 220-230 V/50 Hz power mains.
The unit must be connected to power mains using durable, insulated and heat-resistant conductors (cables and wires) with minimum
cross section not less than 0.5 mm
2
.
The given wire cross sections are for reference only.
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).
The unit connections shall be made on the terminal block mounted inside the terminal box in strict accordance with the wiring diagram
and terminal designations.
The external lead-in must be equipped with a circuit breaker with a thermal-magnetic trip built into the stationary wiring to disconnect
all the mains phases.
The QF external circuit breaker location must ensure free access for quick shutdown of the unit.
The circuit breaker tripping is selected based on the electrical characteristics of the unit, listed in the "Technical data" section.
The unit is equipped with asynchronous motors with an external rotor, with integrated thermal protection with automatic restart.
L
N
X1
1
2
3
N
L
QF
PE
~230 V
50 Hz
4
РЕ
РЕ
РЕ
РЕ
WIRING DIAGRAM
Smooth or step fan speed control is performed by means of a thyristor or transformer speed controller.
Reducing the fan speed enables reducing air flow and heating or cooling heat exchange.
The air heating (cooling) unit is operated via the UWT-1E control unit (special accessory).
The control unit has three operation modes and three fan speed stages for the AOW unit.
The control unit is equipped with an on/off switch with a control lamp, cable glands for cable connections and a thermal fuse for short
circuit protection. The control unit is designed for joint operation with the TST-1-300 digital thermostats with a sensor display (TSTD-1-300
is available with a remote control) or RTS-1-400 with an LCD display (RTSD-1-400 is available with a remote control). The thermostats are
available as special accessories. The thermostat must be installed in a premise that is heated or cooled by the AOW unit. The thermostat
is used for air temperature monitoring and operation mode control.
The thermostat installation place must not be subjected to temperature fluctuations induced by open windows, door and heating
devices. Several air heating (cooling) units installed in the same premise may share one thermostat.
Summary of Contents for AOW 25
Page 1: ...AOW AIR HEATING COOLING UNIT USER S MANUAL...
Page 16: ...V52EN 05...