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Heater controller | AC motor 5 A

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Article code TA-W-000005
Current stock 1 U.
Factory lead time 4 Week(s)
Next arrival 05/04/2024 - 5 U.

Solution description

5-speed controller for fan heaters with single phase motor. The maximum motor current is 5 A. AC fan speed is regulated manually or automatically. When the temperature drops below the set point, the hot water valve is opened via the unregulated output. This unregulated output can control a water valve or an electric heating element. Ambient temperature is measured. The higher the difference between the measured temperature value and the temperature setpoint, the higher AC fan speed. The fan speed is controlled in 5-steps.

Additional specifications and description


Heating for warehouses and production facilities Drawing with red and blue line
Industrial fan heaters are a good way to heat large halls such as warehouses or manufacturing plants. Air is drawn in, heated up and blown back into the room. Thanks to the mechanical supply of warm air into the space, it can be heated up more quickly. Higher efficiency is achieved thanks to the mechanical supply of the warm air. The use of industrial fan heaters is particularly recommended in industrial environments or logistics centers. It is the ideal solution for blowing warm air through a space with many obstacles such as machines and warehouse racks.
 
Fan speed can be set manually or automatically
To avoid overheating, heater and fan are always enabled simultaneously. The included PT500 temperature sensor measures the ambient temperature. The desired temperature can be selected via the rotary button on the front panel or via Modbus RTU communication. When the ambient temperature is lower than the desired temperature, the heating is activated via the unregulated output (ON/OFF). At the same time, the fan is also activated. Fan speed can be controlled automatically (AUTO) or it can be fixed at a constant speed (positions 1 - 2 - 3 - 4 or 5). In position 0, the device is disabled. AC fan speed is regulated by reducing the motor voltage via autotransformer technology. The fan must be voltage controllable. When the ambient temperature is higher than the setpoint temperature, heater and fan are disabled.
 
Autotransformer technology
Autotransformer technology is used to reduce the motor voltage and the fan speed in 5 steps. This controller is therefore only suitable for voltage controllable motors. If you are not sure whether your motor is voltage controllable, it is best to contact the motor manufacturer. Autotransformer technology is very reliable and robust. It generates a motor voltage with perfect sinusoidal shape. This results in exceptionally quiet motor operation and extended service life. A special impregnated coating reduces the electrical noise from the autotransformers.

Solid enclosure
Make sure that the fan speed controller can cool sufficiently. Preferably install it in a dry, cool place, best not in direct sunlight. The enclosure is designed and manufactured in-house. We use high-quality r-ABS VO (UL94) plastic. This material is flame extinguishing, very tough and offers good protection against impacts. It offers an IP54 protection against ingress dust and water. This fan speed controller can be installed on a wall or panel indoors.


Components of this solution

Article code
Quantity
Description

GTH-1-50L22

1 U.

A 5-step fan speed controller that allows the fan speed to be adjusted according to the ambient temperature. The maximum (combined) motor current is 5A. The supply voltage is 230 V AC. Designed for warm air heaters with single phase voltage controlled motors. The controllers requires an external PT500 temperature probe. The unregulated output can control external valves for hot water heating. In heating mode, the fan and unregulated output are activated when the ambient temperature drops below the selected temperature. The fan speed can be set manually or automatically. In automatic mode, the fan speed increases when the ambient temperature becomes lower than the selected temperature. If the ambient temperature is above the set temperature, the fan and uncontrolled outputs are switched off. In cooling mode, operation is reversed. The fan speed is controlled in steps by varying the motor voltage using autotransformer technology. This technology guarantees quiet operation of the motor. The plastic enclosure can be surface mounted in enclosed spaces (IP54).

FLTSN-P500-040

1 U.

This is a passive temperature probe. It measures temperature via a PT500. The platinum sensor element is resin encapsulated in a stainless steel tube (53 x 8 mm). This temperature probe has a positive temperature coefficient of resistance: when the temperature rises, the resistance rises. At 0 °C, the resistance is 500 Ω. The integrated cable has a length of 4 m and features a, unshielded 2 pole twisted wire (2 x 0,5 mm²).

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