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X1 insulated ramified terminals Drawing 5 One-gear roof fans Automatic control unit for a group of 4 roof fans with three-phase motors control voltage V AC.
To switch on the selected work type, the operator must set the SQ1 switch confirming the work type in the same position that work type switch Vael.
Fuse element qL is adjusted for the motor power Safeguarded by three-field fuse element. One gear roof fans Automatic control unit for one-phase roof fan motor control voltage V AC. Q0 motor circuit breaker included in the control transformer protection and to control circuits protection. Safeguarded by three-field fuse element. Control circuit Safeguarded by one-field fuse element. The differentiated operating voltage values take into the account the power supply voltage for signal converter.
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On the specification basis, the manufacturer will select proper equipment for the self-acting control unit and specify the required protection settings with an electric diagram. The unit also connects the fan motor to 2m50 electric circuit, protects from the effects of short circuits, overloads, one phase operation.
Safeguarded by one-field fuse element. Fuse element qL is adjusted for the motor power.
Current of electromagnetic trip activation [A]. Equipment list F1 three-field fusible cut-out Q0 motor circuit breaker included in the control transformer protection and to control circuits protection T control circuits transformer QM In position 0 of the switch, the fan motor operation control is switched off.
One-gear roof fans Automatic control unit for a group of 4 roof fans with three-phase motors control voltage 24 V AC. F1 three-field fuse safeguard QM1 motor switch-off kM1 motor installation contactor H signalling light F2 motor circuit breaker, activated for protection of the control transformer and control circuits T control circuits transformer SQ work type switch cam switch SQ1 switch confirming the work type change X spring clamp strip X1 insulated ramified terminal in the power circuit X2 insulated ramified terminal in the control circuit.
Automatic control unit for one-gear fan is to carry out the time control programme and to control the fan operation according the following conditions temperature, humidity and air flow speed in the ventilation duct.
Automatic Control Unit for a group of one-gear roof fans fale manufactured to order. Selection and fasl should match chart 1. The customer must specified types of fans making the group and the type of the input signal converter.
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Equipment list F1 three-field fusible cut-out F01 one-field fusible cut-out of the control circuit QM Built-in fuse has additional capacity of safeguarding the equipment against short circuits up to 50kA.
Fuse element qL is adjusted for the motor power M motor switch-off. M25 unit is able to make evident breaks in electric circuits.
The switch-off safeguards the transformer and control. Safeguarded by M switch-off with the range 0,4A. THE switchgear transparent door allows for controlling the motor switch activation and the position n250 operation mode connector. One gear roof fans Automatic control unit for three-phase roof fan motor control voltage 24 V AC. Uniwersal Sp z o.
The below diagrams present an example of controlling a group of 4 fans.