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The unit also connects the fan motor to the electric circuit, protects from the effects of short circuits, overloads, one phase operation.
Q0 motor circuit breaker included in the control transformer protection and to control circuits protection.
One-gear roof fans Automatic control unit for a group of 4 roof fans with three-phase motors control voltage 24 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 SQ.
Fuse element qL is adjusted for fasl motor power. One gear roof fans Automatic control unit for faek roof fan motor control voltage V AC. The unit is able to make evident breaks in electric circuits. Control circuit Safeguarded by one-field fuse element.
Safeguarded by M switch-off with the range 0,4A. Safeguarded by three-field fuse element.
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One gear roof fans Automatic control unit for three-phase roof fan motor control voltage 24 V AC. Fuse element qL is adjusted for the motor power M motor switch-off.
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. 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 Fuse element qL is adjusted for the motor power Safeguarded by three-field fuse element. Safeguarded by one-field fuse element.
THE switchgear transparent door allows for controlling the motor switch activation and the position of operation mode connector. Equipment list F1 three-field fusible cut-out F01 one-field fusible cut-out of the control circuit QM Current of electromagnetic trip activation [A]. In position 0 of the switch, the fan motor operation control is switched off.
Uniwersal Sp z o. The customer must specified types of fans making the group and the type of the input signal converter. Automatic Faeel Unit for a group of one-gear roof fans is manufactured to order. The switch-off safeguards the transformer and control. 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 Gael 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.
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.
The differentiated operating voltage values take into the account the power supply voltage for signal converter. 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.
The below diagrams present an example of controlling a group of 4 fans. Selection and value should match chart 1. Built-in fuse has additional capacity of safeguarding the equipment against short circuits up to 50kA.