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ELECTRICAL DIAGRAMS - AC FANS

One of the vital components for the correct functioning of the ARFIT brand air handling units are the fans, so,
make sure that they are correctly connected according to the following diagrams:

- Three-phase motors 400V (star connection – image 14) and 230V (delta connection – image 15)

- Three-phase motors 400/690V (Image 16):

Note:

For AC fans of two or more speeds consult the manufacturer's manual.

Image 14

Image 15

Image 4

Image 16

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Содержание TTP

Страница 1: ...1 Quality Management System certified under Norm ISO 9001 2015 by TÜV Rheinland Portugal Air Handling Units Instructions Manual EN ...

Страница 2: ...EM SOLVING 7 CE DECLARATION CONFORMITY 8 CONDENSATION TRAY 9 ELECTRICAL DIAGRAMS EC FANS 10 ELECTRICAL DIAGRAMS AC FANS 18 ACCESSORIES CUT OFF SWITCH 19 ACCESSORIES PRESSURE SWITCH 19 ACCESSORIES CONSTANT FLOW AC MOTORS 20 ACCESSORIES CONSTANT FLOW EC MOTORS 22 WATER COIL 24 DIRECT EXPANSION COIL 24 ELECTRIC BATTERY 24 ELECTRIC BATTERY 25 ELECTRIC BATTERY 26 HUMIDIFIER 27 HEAT EXCHANGER 27 ...

Страница 3: ...Line Double Deck or Side by Side UNIT IDENTIFICATION The units are identified by their rating label in which the serial number as well as its main technical features are stated UNIT SHIPMENT The units are sent wrapped in plastic film and with wooden supports in each corner of the many sections that belong to the unit When receiving the unit please check if it has not been damaged during shipment a...

Страница 4: ... at the time the order of the equipment was placed Electrical resistances must be connected to control devices that don t allow them to work when the fan is still that prevent them from working when safety thermostats are activated and that allow a post ventilation period after they are turned off in order to allow them to cool down The heating batteries and steam humidifiers may cause burn injuri...

Страница 5: ...aterials provided These can be found inside the unit Apply the adhesive gasket tape to the aluminium profile of the sections you wish to join Press the parts at the joining of the sections that are in the interior corners of the sections Press the parts that are along the interior of the sections if there any that need to be joined Note in some cases it may be necessary to remove some panels from ...

Страница 6: ... if the filter cloth is not cut Check the condition of filter fills replace if necessary General interior cleaning Frequency of maintenance Monthly Heat exchanger unit Operations to be carried out Check if there are no strange parts inside the module Check the tightness of all the screws to avoid undesirable vibrations Check the condition fix and clean of the heat exchanger Check condensate sewage...

Страница 7: ... Operations to be carried out Check the tightness of all the screws to avoid undesirable vibrations Check the overall performance of the humidifier Check the condition and performance of the humidifier cylinder by checking the condition of the electrodes or resistances and check if there are no strange parts inside it replace if necessary Check and retighten all electrical connections Check the co...

Страница 8: ... Parts that are subject to deterioration or breakage for example belts filters fuses etc Malfunctions caused by misuse abuse neglect negligence lightnings floods humidity falls collisions accident and transportation Malfunctions caused by the use of the equipment for not intended purposes Malfunctions caused as a result of handling modifying or repairing the equipment by unauthorized persons or te...

Страница 9: ...of unstable performance of the fan Damaged bearings damaged metal components Bearings condition of the components Replace bearings or damaged components Unbalanced moving components Strange vibrations Calibrate Replace fan Unit does not work Power failure Power supply Circuit breaker Restore power supply Rearm circuit breaker Low battery performance Reduction of working fluid flow Check flow rate ...

Страница 10: ...aia Portugal declara que el producto Unidades de Tratamiento de Aire TTP esta en conformidad con las siguientes directivas y normas en vigor aplicables Arfit Climatização S A establece que el dominio de la declaración de conformidad es extensible sólo y únicamente para el producto mencionado anteriormente sujetos al cumplimiento de las exigencias inherentes a la instalación y el uso de los bienes ...

Страница 11: ...with siphons Image 1 suitable for Ensure the correct drainage of the condensates Prevent air entrance when the section from the unit is under negative pressure Prevent air leaks when the section from the unit is under positive pressure Prevent entry of odours and insects Where P represents the maximum static pressure within the section in mm c a The siphon must be allowed to be cleaned for regular...

Страница 12: ...A1 Status input normally open A D RS485 MODBUS B D 11 Status relay normally open Closes with alarm 2A 250 VAC 14 PE Ground 230 1 EN 1 50 See characteristics on the motor plate N Power Neutral L1 Power Phase Number Connection Function 1 24V Voltage output 24 VDC 70 mA Connect to terminal 1 of the ARFIT flow regulator to enable operation 2 10V Voltage output 10 VDC Imax 10 mA Terminal 5 flow regulat...

Страница 13: ... 4 flow regulator ARFIT 6 PE Ground 7 11 Status relay normally open Closes with alarm 2A 250 VAC 8 14 9 L1 Power Phase 400 3 EN 1 50 See characteristics on the motor plate 10 L2 Power Phase 11 L3 N Power Phase Number Connection COR Description CON10 L Black Power Phase 230 1 EN 1 50 See characteristics on the motor plate CON11 N Blue Power Neutral CON12 PE Green Yellow Ground 1 GND Blue GND Connec...

Страница 14: ...SELV terminal 3 flow regulator ARFIT 13 10V Red Voltage output 10V Terminal 5 flow regulator ARFIT Number Connection COR Description 1 2 PE Green Yellow Ground 400 3 EN 1 50 See characteristics on the motor plate 3 L1 Black Power Phase 4 L2 Black Power Phase 5 L3 Black Power Phase 6 NC White 1 Status relay normally closed opens with alarm 7 COM White 2 Standard in the status relay 2A 250 VAC min 1...

Страница 15: ...e input 0 10V 100kΩ impedance Terminal 4 flow regulator ARFIT 10V Power for external devices max 10mA terminal 5 flow regulator ARFIT Ain1 I Analogue input 4 20mA 100kΩ impedance Terminal 4 flow regulator ARFIT Din1 Digital input 1 Connect to terminal 2 of the ARFIT flow regulator to enable operation Din2 Digital input 2 Din3 Digital input 3 Ain2 U Analogue input 0 10V 100kΩ impedance Terminal 4 f...

Страница 16: ...ulator to enable operation 10V Power for external devices max 10mA terminal 5 flow regulator ARFIT Ain1 U Analogue input 0 10V 100kΩ impedance Terminal 4 flow regulator ARFIT Connection COR Description L Black Power Phase 230 1 EN 1 50 See characteristics on the motor plate N Blue Power Neutral PE Green Yellow Ground NC White 1 Status relay normally closed opens with alarm COM White 2 Standard in ...

Страница 17: ...alogue input 0 10V 100kΩ impedance Terminal 4 flow regulator ARFIT 10V Power for external devices max 10mA terminal 5 flow regulator ARFIT Ain1 I Analogue input 4 20mA 100kΩ impedance Terminal 4 flow regulator ARFIT Din1 Digital input 1 Connect to terminal 2 of the ARFIT flow regulator to enable operation Din2 Digital input 2 Din3 Digital input 3 Ain2 U Analogue input 0 10V 100kΩ impedance Termina...

Страница 18: ... relay NC Status relay normally closed opens with alarm KL3 RSA RS485 MODBUS RTU RSB GND Reference for interface terminal 3 flow regulator ARFIT 0 10V PWM Control input 0 10V or PWM Terminal 4 flow regulator ARFIT 4 20mA Control input 4 20mA 20V Power for external devices max 20mA Connect to terminal 1 of the ARFIT flow regulator to enable operation 10V Power for external devices max 10mA terminal...

Страница 19: ...NC Status relay normally closed opens with alarm KL3 RSA RS485 MODBUS RTU RSB GND Reference for interface terminal 3 flow regulator ARFIT 0 10V PWM Control input 0 10V or PWM Terminal 4 flow regulator ARFIT 4 20mA Control input 4 20mA 20V Power for external devices max 20mA Connect to terminal 1 of the ARFIT flow regulator to enable operation 10V Power for external devices max 10mA terminal 5 flow...

Страница 20: ... are the fans so make sure that they are correctly connected according to the following diagrams Three phase motors 400V star connection image 14 and 230V delta connection image 15 Three phase motors 400 690V Image 16 Note For AC fans of two or more speeds consult the manufacturer s manual Image 14 Image 15 Image 4 Image 16 ...

Страница 21: ...le phase Image 17 and three phase Image 18 fans Single phase Cut off switch Three phase Cut off switch ACCESSORIES PRESSURE SWITCH The differential air pressure switch allows the differential pressure to be monitored between two different points It is applied to the equipment to collect information about the condition of the filters and also the condition of the fans of the equipment The regulatio...

Страница 22: ...hown in the image below for three phase fans Image 21 Three phase Motors AC The system uses a differential pressure sensor and a variable frequency drive fans with three phase motor The differential pressure sensor has different operating ranges the chosen range image 22 depending on the setting to be made A Differential Pressure Sensor B Variable frequency Drive C Fan Image 21 Range of differenti...

Страница 23: ...e frequency drive fans with three phase motor being a percentage value of the selected operating range on the differential pressure sensor The regulation is performed as follows Access to MENU FUn SUBMENU PI CATEGORY rPI Enter the value of the desired setting Image 23 ...

Страница 24: ...ntroller The differential pressure sensor has different operating ranges the chosen range Image 25 depending on the setting to be made The regulation of the constant flow is performed in the flow controller establishing a percentage value of the selected operating range on the differential pressure sensor For a proper regulation you must follow the following steps image 26 A Differential Pressure ...

Страница 25: ...ect the setting menu using the or keys Press the P key to enter the selected menu Use the or arrows to select the setpoint that you want to change there is a possibility of setting 2 setpoints and only setpoint 1 is used by default Press the P key to enter the selected setpoint With the arrows or select the value of the intended setpoint Press the P key to memorize the selected value Press simulta...

Страница 26: ...ese batteries use the flow of a refrigerant fluid to transfer heat to the air For a correct performance and to avoid damages in the coil the following warnings must be observed The batteries are designed to only use the selected refrigerant The installation of these batteries must be performed by a proper qualified technician for the service Make sure that the working fluid pressure is within acce...

Страница 27: ...25 ELECTRIC BATTERY Batteries of 2 steps Batteries of 3 steps Batteries of 4 steps TP Thermal Protection Safety thermostat ...

Страница 28: ...26 ELECTRIC BATTERY Batteries of 5 steps Batteries of 6 steps TP Thermal Protection Safety thermostat ...

Страница 29: ...supplied with the unit HEAT EXCHANGER The heat exchanger has the function of recovering the thermal energy from the extracted air flow transferring it to the inflated air flow The rotary type of heat exchangers has an electric motor that must be electrically connected according to the indications on the motor Version 22 04 2021 ARFIT reserves the right to modify the information contained in this d...

Страница 30: ...28 BLANK PAGE LEFT PURPOSELY ...

Страница 31: ...29 BLANK PAGE LEFT PURPOSELY ...

Страница 32: ...30 www arfit pt R Domingos Ferreira da Costa nº 280 Z I da Maia I Sector VIII 4475 297 Gemunde Maia T 223 797 631 E info arfit pt ...

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