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Airwell Airflow 2020, Installation And Operating Manual

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Airwell Airflow 2020 Installation And Operating Manual Download Page 21

21  

6 - ELECTRIC CONNECTIONS

 

In case of alarm signalling from a fire surveying station, 
the unit can put the ambient: 

- 

in negative pressure 

- 

in pressure 

- 

maintains a neutral ambient 

Set parameter 91 : 
 

= 0neutral ambient 

 

= 1 depressurized ambient 

 

= 2 ambient in pressure 

Remove the jumper 

11cn1 and 3cn1 

on the 

X1

 

terminal block. 

Connect the alarm signalling to terminals 

11cn1 and 

3cn1

. 

 

Humidifier signalling (alarm UR%) 

Signalling of the winter humidification function block  

RCW19 AMBIENT THERMOSTAT 

Connect the RCW19 ambient thermostat as indicated 
in the figure

. 

Connections :  

• 

3x0,34mm

2

  shielded 

• 

max. length 80 m 

X1 

RCW15 - REMOTE CONTROL WITH TOUCH SCREEN DI-

SPLAY 

Remote user keypad, to control the unit main functions. 
To use the keyboard, you need: 

• 

12Vdc power supply unit (supplied separately) 

• 

serial communication module (supplied separately) 

For details, see instructions accessory. 

RCW15 opt. 

Pressing any button of the thermostat there is not 

control / communication check the fuses (FU 12v and 

FU NET). 

If the fuses are burnt  replace them and check the 

connections. 

Summary of Contents for Airflow 2020

Page 1: ...Installation and operating manual Décember 2017 ...

Page 2: ...es to things and injuries to people Before going ahead with operations read the GENERAL WARNINGS Pay particular attention to WARNING identifies particularly important operations or information PROHIBITIONS identifies operations that must not be carried out that compromises the operating of the unit or may cause damages to persons or things ...

Page 3: ... B mm 760 993 Anti vibration joint when used rigid pipes Size 200 300 650 A Air expulsion Ø 200 mm Ø 250 mm B Ambient air return Ø 200 mm Ø 250 mm C Ambient air distribution Ø 200 mm Ø 250 mm D Fresh air intake Ø 200 mm Ø 250 mm Filter size 200 650 RCW15 ambient thermostat C Connect the ambient thermostat to the terminal block of the customer connections Terminal block of the customer Connections ...

Page 4: ...dirt Electric connections AE fresh air intake ES air expulsion M ambient air distribution R ambient air return If there are electric heaters increase access space Trapdoor opening Sifón extraction air filter from below Insulated ducts Size A B 200 300 310 276 650 370 336 Positions thermostat The thermostat must be placed at a height of 150 cm preferably on an internal wall Positions to avoid next ...

Page 5: ...l It is possible to remove the electrical panel and make it remote to facilitate the installation 8 External exchanger It recovers energy heat cool from the exhaust air 9 Air filter It purifies the fresh air before introducing it into the rooms 10 Upper panel 11 Electronic filter option 12 Electrical panel 1 2 ACCESSORIES Electronic filter kit Kit of exhaust air filter Serial communication module ...

Page 6: ...AIRFLOWxxx N11 size 200 650 serial number xxxxxxxxxxxx year of manufacture wiring diagram number electrical data manufacturer logo and address Serial number It identifies uniquely each unit It identifies specific spare parts for the unit Intervention requests Note data from the serial number label and write them in the table sideways so you will find them easily when needed In case of intervention...

Page 7: ...materials delivered correspond with that indicated on the transport document comparing the data with the identification label A positioned on the packaging In case of damage or anomaly write down on the transport document the damage you found and quote this sentence Conditional acceptance clear evidence of deficiencies damages during transport Contest by fax and registered mail with advice of rece...

Page 8: ...nit is supplied in a single pack and is equipped with 1 installation manual 2 installation kit Ambient thermostat Installation kit A spring antivibrations n 4 B M8 nuts n 4 C plain washers n 4 D toothed washers n 4 E M8 bolts n 4 F ambient thermostat ...

Page 9: ...und of the unit and of the functional clearances to allow the access with ladders or other means Floor positioning install the unit raised from the ground Limit vibration transmission use antivibration devices on unit bearing supporting points install flexible joints on the hydraulic aeraulic con nections The functional clearances have to guarantee the unit good operating allow the maintenance ope...

Page 10: ... for routine maintenance access to electrical panel and optional electronic filter E Access to conduct extraordinary maintenance to replace the fan compressor etc F Access to fan removal G Access to clean the filter exhaust air filter option Heat el If there are heating elements increase the W1 value A B C G D A F G F Heat el L1A ceiling installation filter access from below non remote electrical ...

Page 11: ...e support base Match the upper hole of the antivibration device with the hole of the support bracket The antibration device must be positioned with the interior threaded upward Insert the flat and notched washer in the bolt Screw the bolt in the top of the antivibration device letting it pass through the hole on the bracket Do not over tighten the nuts the springs because if too much crushed they ...

Page 12: ...s M6 and remove the panel from the unit side Fix the panel using screws and screw anchors suitable for the characteristics of the used support If later it is supposed the installation of the electric elements optional consider that the cable to connect to the electrical panel has a max length of 1 5 metres In this case the filter removal for cleaning can be performed either from the side or from b...

Page 13: ...a room with medium temperature and humidity conditions representative of the other rooms at a height of 150 cm preferably on an internal wall Positions to avoid next to heat sources points exposed to direct sunlight in a position with air rejected from outlets or diffusers behind curtains or pieces of furniture near windows and doors to the outside on walls crossed by fireplaces or heating ducts o...

Page 14: ...white water or drainage networks to avoid the aspiration of odours in the case of evaporation of water contained in the siphon The connection must not be hermetic so as to allow the venting and avoid possible liquid returns Check at the end of the work the regular condensate runoff pouring some water in the tray Prevent the risk of freeze if the unit drain or plumbing connections of the humidifier...

Page 15: ...the system silence RETURN AIR in the kitchens bathrooms rooms with vapours unpleasant odours SUPPLY AIR in the living room bedrooms studies etc If the duct outlets for the outdoor air inlet and exhaust are outside of coverage must end with a 90 bend downward to prevent entry of water from the air inlet To perform the ductings Connect the ductings fixing them to the connections with the special hoo...

Page 16: ...to avoid soiling the coil size 200 650 5 AERAULIC CONNECTIONS The ducts should not be tilted towards unit to avoid the condensate and water return A Thermically insulate the supply ducts to avoid heat losses and condensate B Avoid tight bends pressure drops Avoid recirculation of exhaust return air Insulated ducts 2 Exhaust return grille GR150X GR200X GR250X Size A B 200 300 310 276 650 370 336 1 ...

Page 17: ...e panel screws 2 Identify the control 3 Make a hole in the cable sleeve 4 Remove the jumper P on the terminal block if the control is used 5 The control connect XC REMOTE CONTROLS CUMLATIVE BLOCK CONDENSATE DISCHARGE RCW15 BLACK GRAY BROWN BLUE Refer to the unit electrical diagram ...

Page 18: ...surveying station the unit can put the ambient in negative pressure in pressure maintains a neutral ambient Set parameter 91 0neutral ambient 1 depressurized ambient 2 ambient in pressure Remove the jumper 11cn1 and 3cn1 on the XC terminal block Connect the alarm signalling to terminals 11cn1 and 3cn1 Cumlative block Unit blocked signal RCW15 AMBIENT THERMOSTAT Connect the RCW15 ambient thermostat...

Page 19: ...etric panel AP1 Main control module KAC Compressor control relay AP exp Expansion module KAfiltr Relay DGS Manual reset button Compressor protection T1 Aux circuit transformer FU1 Compressor fuse RS485 Serial communication module FUX 230v auxiliary circuit protection fuse XCR Connection of the service keypad FU 12v Protection fuse 12v AP1 5x20 T 160mA XRS Connection of the preheating resistances F...

Page 20: ...thermostat 1 control only from remote control Silent It reduces the fan speed Set parameter 224 0 disabled 1 from digital input 2 digital supervisor input Ventilation fan Only the fans are actives and no check on the temperature and humidity is performed compressor humidifier and resistances are disabled Fire signalling alarm AI REMOTE CONTROLS HUMIDIFIER OPTION Refer to the unit electrical diagra...

Page 21: ...e winter humidification function block RCW19 AMBIENT THERMOSTAT Connect the RCW19 ambient thermostat as indicated in the figure Connections 3x0 34mm2 shielded max length 80 m X1 RCW15 REMOTE CONTROL WITH TOUCH SCREEN DI SPLAY Remote user keypad to control the unit main functions To use the keyboard you need 12Vdc power supply unit supplied separately serial communication module supplied separately...

Page 22: ...the presence of oil stains can mean leakage caused for example by transport handling or other Use the pressure taps only if you need to load or unload the refrigerant circuit Hydraulic circuit If the humidifier is present Before realizing the unit connection make sure that the hydraulic system has been cleaned up and the clearing water has been drained Check that the water circuit has been charged...

Page 23: ...option 8 Air flow correct return and supply no bypass 9 Completed aeraulic system 10 Insulation of supply conduits to room and air exhaust conduits 11 Presence of anti vibration joints between the conduit and unit e g canvas conduits 12 Condensate drain with trap sloping 13 Presence of electric heater option installed correctly 14 Presence of humidifier option sizes 200 650 only installed correctl...

Page 24: ...6 Set the unit to winter mode ventilation only 7 Start the unit when it reaches full power with the compressor on verify that the evaporation pressure status 51 exceeds 7 bar values 200 600 and 1 8 bar values 70 120 and that the temperature difference between the external air status 4 and the supply air status 50 is at least 10 C in summer mode and at least 15 C in winter mode 8 Fans operation che...

Page 25: ... the compressor s fuse holder HUMIDIFIER OPERATION CHECK option sizes 200 650 only 1 set the unit to heating mode 2 through the ambient thermostat parameter P05 or service keypad parameter 30 set the humidity set point to 90 3 check that the cylinder fills with water and starts boiling 4 a full cylinder combined with a very low current absorption value with respect to the nominal value indicated o...

Page 26: ...mple of conduits square tube L x H airflow m3 h speed medium m s 140 140 200 2 83 180 180 200 1 71 220 220 200 1 15 140 140 300 4 25 170 170 300 2 88 220 220 300 1 72 180 180 650 5 57 220 220 650 3 73 260 260 650 2 67 rectangular tube LxH airflow m3 h speed medium m s 250 80 200 2 78 300 100 200 1 85 400 120 200 1 16 250 80 300 4 17 300 100 300 2 78 400 120 300 1 74 300 100 650 6 02 450 120 650 3 ...

Page 27: ...button C the unit is started up in the ventilation only mode check that the air flows correspond to the nominal ones of the unit see the Technical Information section If necessary change the outlet and exhaust fan parameters as described above Hold the Ventilation button C to exit from the Ventilation only mode 7 3 CHECK OF THE AIR FLOW AIRFLOW 2020 C ventilation I On Off On your keyboard P01 SetU...

Page 28: ...TO Automatic operating Visible if active 8 CONTROL KEYS COMBINATION KEYS FUNCTIONS Ambient setpoint control up down Ventilation Alarm Eco used in combination with other keys Cooling Heating Clean ON OFF DISPLAY It displays the temperature detected in ambient Long press It scrolls down the alarm list of one code at a time Single press Alarm reset in progress Long press Button lock Button unlock Lon...

Page 29: ...itch of the installation on On The display is switched on in Off Hold the On Off button I for 5 seconds until the unit start up The ambient setpoint is displayed Select the desired operating mode between heating and cooling 8 1 FIRST START UP Hold the On Off button I for 5 seconds until the unit shutdown Off is displayed At the next starting the unit is started up in the last set mode 8 2 SHUTDOWN...

Page 30: ...scheduling mode By the ambient thermostat is possible to set the unit changing some parameters 8 3 PARAMETER MODIFICATION To adapt the unit operating to the installation needs it is possible to set the operating modifying some parameters by the ambient thermostat Par Description P02 manual or auto setpoint enabling onsetman P03 manual or automatic mode change enabling onmodeman P04 humidity setpoi...

Page 31: ...ns A and B previous page The two set are connected to avoid their overlapping If the cooling set is decreased also the heating set is automatically decreased If the heating set is increased also the cooling set is automatically decreased Automatic Set Point The setpoint change according to the outside temperature depending on a curve set by parameters The heating setpoint is below the curve the co...

Page 32: ...ir flow and disabling the compressor C The ambient inlet air temperature is equal to the outdoor temperature III REDUCED FLOW FOR DEHUMIDIFICATION In order to effect more effectively the fresh air dehumidification Airflow 2020 reduces the flow modulating the fan speed D so it is possible to cool the rooms by using the radiant panels and to effectively dehumidify OUTDOOR AIR temp SUPPLY temp AIR fl...

Page 33: ...button D To scroll down the alarm list press repeatedly the Alarm button D The display will return to normal visualization after 5 seconds from the last pressure on Alarms 8 7 ALARMS Whenever the unit is in alarm on the thermostat display is visualized the code of the alarm in progress The code will alternate at intervals of about 3 seconds with the display of the ambient temperature In case of mu...

Page 34: ... air filter Dirty heaters no filter No airflow control the fan Heater reset M E13 Compressor low pressure SUMMER insufficient supply air flow rate in ambient filters air dirty obstacles air distribution system supply fan fault Cooling circuit anomaly Contact a qualified technician WINTER insufficient exhaust air flow rate filters air dirty return installation obstacles from ambient exhaust fan fau...

Page 35: ...emperature and then turn on the unit A E28 Ventilation block due to ambient high temperature The air inside the house is not compatible with the unit s operating limits This might mean that there is no main air conditioning system or that it is not running This is an air renewal unit with heat recovery and not an air conditioning device wait for the room to reach the right temperature and then tur...

Page 36: ...n the cause that set it off ends and a keypad reset is executed Alarm Description Possible cause C38 Modulating resi stance On with recovery circuit Off Air preheating no anomaly A C39 Control of the supply title not satisfied The unit operates regularly High supply air humidity open windows lots of people etc A E40 Inconsistency of the temperature differential The temperature difference at the ai...

Page 37: ...e supply title Automatic mode Off Non blocking signal press to display the problem On Alarm on progress Scheduling Operation correct of the unit Unit in ventilation only mode Access settings From 1 to 40 From 61 to 80 From 41 to 60 From 81 to 100 Compressor operating Display 8 8 RCW15 REMOTE CONTROL WITH TOUCH SCREEN DISPLAY Temperature probe Reset Signal led Humidity probe Restart of the device D...

Page 38: ...control off on Programmed the unit follows the programmed schedule Ventilation only the unit acts like a fan it does not heat cool the air introduced into the environment Press spento off Press Ventilation only OFF Programmed ON Ventilation only OFF Programmed ON ON Programmed OFF Ventilation only Statuts 1 2 3 4 Press Press heating Cooling Automatic Season heating heating Automatic Season heating...

Page 39: ... allows the setting of the current date and time 5 Press 6 Confirm Cooling Setpoint Setpoint Setpoint Setpoint Setpoint Heating 17 0 C Cooling Heating 17 0 C Cooling Heating 21 0 C Cooling Heating 21 0 C Cooling Heating 21 0 C It allows the setting of the desired room temperature the current mode SETPOINT AMBIENT DATE AND HOUR 1 2 Press Alarms 11 30 05 03 16 09 Scroll down to view warnings Visuali...

Page 40: ...ct 2 Repeat starting from point 7 for the other programs 8 Press to increase or decrease the value 17 0 Tuesday 17 0 20 0 17 0 07 00 6 2 1 23 59 10 00 23 59 3 Press 20 0 setpoint 17 0 Tuesday 17 20 3 6 2 1 23 59 10 00 23 59 07 00 20 10 3 4 Heating Schedulatore Cooling 5 Confirm Cooling Schedule Heating Press 17 0 Monday 17 0 20 0 3 6 2 1 23 59 21 00 23 59 17 0 12 13 14 06 00 07 00 07 00 Example pr...

Page 41: ... 2 Press settings Settings Press 3 Press Unità Settings Registro Leggi Scrivi 4 Enter password installer and confirm Indicate valors UNIT STATUS only consultation C C C ACCESS PARAMETERS installer use unit Unit address entry filed on Modbus network through the numeric keypad screen Register Entry field of the unit Modbus register to be questioned on the Modbus network through the numeric keypad sc...

Page 42: ...URHeat HR SetPoint in winter operating 2 97 SetURCool HR SetPoint in summer operating 2 224 SilentMode Enabling of the silence mode Accessible parameters without password Press the set button to enter in the scheduling mode Select the parameter using the M and O arrows Modify the value by the and buttons To store go to another parameter Set to esc L Pressing the set button L before passing to anot...

Page 43: ...ized assistance centre The full parameters list is available in the following pages Automatic setpoint The setpoint change depending on the outside temperature according to a curve set by parameters OPERATING STATA Press Status button E Select the status to display using the M and O arrows Press Status to esc E The full parameter list is available in the in the following pages 1 2 3 4 0 Parametres...

Page 44: ... 027 Electrostatic filter control signal 028 Antifreeze Probe C 030 External damper status 0 1 031 Unit clock Hour 032 C1 operating hours Hour 033 Not used 034 C1 starts Int 035 Not used Int 036 Keypad software 037 keypad homologation year 2008 038 keypad homologation month 4 039 keypad homologation day 3 040 Base software 041 base homologation year 2008 042 base homologation month 4 043 base homo...

Page 45: ... 2 1 30 SetURHeat UR SetPoint in heating 55 0 31 BandURHeat UR humidity control band in winter ambient 10 1 32 SetUROut Outlet limit humidity in heating 90 1 33 BandUROut Outlet limit humidity control band 10 1 34 MaxOut Humidifier control signal max value 100 1 35 LimTextCool Compressor external temperature limit in cooling C 40 1 36 BandCoolRec Proportional band VCoolExt C 5 1 37 DeltaCoolRec De...

Page 46: ...1 128 MinApValvH2O Min opening of the handling water coil valve phisical threshold to have the flow 2 1 129 RiduzDeltaBattH2O Reduction coefficient to the coil delta in the valve modulation of initial opening 70 1 131 OffSetTin Inlet probe offset C 0 1 132 OffSetTout Outlet probe offset C 0 1 133 OffSetText External temperature probe offset C 0 1 135 OffSetTfreeze Antifreeze probe offset C 0 1 137...

Page 47: ...in Cool with SetUpFanRip 1 55 1 240 NomHeatMan_1 Nominal value of the supply fan control signal in Heat with SetUpFanMan 1 48 1 241 NomCoolMan_1 Nominal value of the supply fan control signal in Cool with SetUpFanMan 1 48 1 242 MaxRip_2 Max signal of the return fan control signal with SetUpFanRip 2 60 1 243 MinRip_2 Min signal of the return fan control signal with SetUpFanRip 2 45 1 244 MaxMan_2 M...

Page 48: ...condition of the structure parts Paint so as to eliminate or reduce oxidation where needed Check that the paneling is correctly fastened Poor fastening may give rise to malfunctions and abnormal noise and vibration 9 6 COIL The accidental contact with the fins of the exchanger may cause small cuts use protective gloves The finned surfaces of the coils and especially the drain pans are the places w...

Page 49: ...t is advisable to start with frequent checks and to adjust the frequency based on how much dirt is discovered Old filters washing residuals and residual parts must be disposed of according to the law in force 9 MAINTENANCE A B C Access to the filters The access to the filters is possible in two positions AIRFLOW 2020 A Lateral access floor units B Lower access ceiling units To access to the filter...

Page 50: ...gnalled by the green led F on the higher part of the filter on Correct operating flashing Stopped filter off Check the electrical connections Switch off the unit Access to the filters The access to the filters is possible in two positions AIRFLOW 2020 A Lateral access floor units B Lower access ceiling units To access to the filters Remove the closing panels Carefully extract the filter To reposit...

Page 51: ...ectrostatic cells to dry in a hot room or directly in the sun for a few hours Keep the cells lifted from the ground using two metal or wooden laths 8 Check the ionisation wires before remounting the filter The cleaner can be used to clean about 20 filters Can be recovered and placed in plastic containers closed the air oxidizes the cleaner and reduces its effectiveness IONISATION WIRES The impurit...

Page 52: ...units A B C To clean the filter Unscrew the 2 screws of the locking filter Clean the filter in tepid water with common deter gent Rinse thoroughly in running water to avoid spillage into the served area Dry the filter 9 12 FANS The fans can be removed from above and from below Remove the roof or the lower panel Unscrew the 4 front screws Disconnect the quick connector Extract the fan ...

Page 53: ...ction air flow rate measurement channelling anti vibration devices and fastenings check power supply cable isolation and fastening check earth cable check electric control board cleaning power remote controls state clamps closure cables isolation integrity phases unbalancing and power supply voltage vacuum and loaded absorption of the individual electric loads compressors carter heaters test leaks...

Page 54: ... d floor installation lateral filter access non remote electrical control board at a distance of at least 700 mm 1 REMOVABLE PANEL FOR ACCESS TO THE COMPONENTS OF HANDLING SECTION 2 REMOVABLE PANEL FOR ACCESS TO THE COMPONENTS OF THE RECOVERY SECTION 3 REMOVABLE PANEL FOR LOWER ACCESS TO THE AIR FILTER 4 ELECTRICAL PANEL 5 FIXING POINTS 6 POWER INPUT 7 CONDENSATE DISCHARGE DUCT 8 REMOVABLE PANEL F...

Page 55: ...400 mm d floor installation lateral filter access non remote electrical control board at a distance of at least 700 mm 1 REMOVABLE PANEL FOR ACCESS TO THE COMPONENTS OF HANDLING SECTION 2 REMOVABLE PANEL FOR ACCESS TO THE COMPONENTS OF THE RECOVERY SECTION 3 REMOVABLE PANEL FOR LOWER ACCESS TO THE AIR FILTER 4 ELECTRICAL PANEL 5 FIXING POINTS 6 POWER INPUT 7 CONDENSATE DISCHARGE DUCT 8 REMOVABLE P...

Page 56: ...following conditions Outdoor air temperature 30 C BS 22 0 C BU Internal air temperature 27 C BS 19 C BU nominal air flow 2 AE 35 C data referred to the following conditions Outdoor air temperature 35 C BS 24 0 C BU Internal air temperature 27 C BS 19 C BU nominal air flow 3 AE 7 C data referred to the following conditions Outdoor air temperature 7 C BS 6 C BU Internal air temperature 20 C BS 15 C ...

Page 57: ... or obstacles in generally the sound levels may undergo substantial variations The limits are meant as an indication Please note that they have been calculated by considering general and not specific sises clean batteries and filters non critical positioning of the unit and correct operating and maintenance of the unit 1 Operating field with external RH 40 2 Zone of possible operation in Free Cool...

Page 58: ...C lateral floor units Unscrew the front screws Remove the existing collar Install the filter holder Lateral ceiling installation not allowed Minimum space for filter extraction Min 350 mm Installation not permitted 11 5 KIT OF EXHAUST AIR FILTER A B C Insert the filter Close the filter Screw the 2 screws of the locking filter 1 2 3 ...

Page 59: ... Absolutely to avoid metal dusts also fine fumes produced by combustion of organic and not materials wood coal gasoline etc Filter installation The filter installation is possible in 2 positions AIRFLOW 2020 A lateral floor units B from the bottom ceiling units A B To install the filter Remove the closing panels Extract the pleated filter Connect the quick connector G Insert the electronic filter ...

Page 60: ...olarised inside network 485 S2 OFF polarised NO Termination The last component of the network must be terminated S1 ON termination YES Position the RS 485 A module in the Airflow 2020 electrical panel For a correct connection use the GND blue as reference ELECTRIC PANEL RS485 MODULE J 3 S3 S4 ON S5 ON S1 S2 J1 ON RS485 1 LR LV The unit can be connected to remote keypad RCW15 or an external supervi...

Page 61: ...uses bitmaps bitmap 2031 rd 2 operating statuses bitmaps bitmap 2032 rd Operating return temperature C 10 2033 rd Supply temperature mean value C 10 2034 rd Fresh air temperature C 10 2035 rd Supply humidity 2036 rd Operating return humidity 2044 rd wr Compressor1 hours of operation no 2046 rd wr Compressor1 start ups no 2050 rd Statuses1 bitmaps compressor and assoc circ mix bitmap 2052 rd Alarms...

Page 62: ...0x0200 bit10 High supply temperature alarm 1 0x0400 bit11 High supply temperature alarm 2 0x0800 bit12 Low supply temperature alarm 1 0x1000 bit13 Low supply temperature alarm 2 0x2000 bit14 Water temperature out of limits alarm 0x4000 bit15 Temperature differential inconsistency between supply air and external air with compressor on for more than 10 min 0x8000 1 The configuration alarm is sent wh...

Page 63: ... statuses is ignored REQUIRED CONTROL from Modbus bit6 bit5 bit4 onoff eco vent loc only Current operating status that allows to acquire the required control bit2 bit6 bit5 bit4 REQU in OFF mode 0 0 0 1 x y z x y z 0 1 REQU in ON mode 1 0 0 1 0 0 0 current status off 1 0 1 0 current status eco REQU in ECO mode 0 1 0 1 1 0 0 current status normal on REQU in VENT ONLY mode on 0 1 1 1 0 1 1 0 1 0 cur...

Page 64: ...anagement etc Provided that the previous section has been checked each Modbus control is acquired only if in the Flag Register written by Modbus the flag that enables that specific control has been set to 1 If the conditions above are met and the TimeOffLine parameter is 0 the Modbus serial device experiences a communication timeout The control is no longer acquired by the Modbus until the connect...

Page 65: ...s etc please refer to the TECHNICAL INFORMATION section Use single protection devices gloves glasses etc During positioning consider these elements technical spaces requested by the unit and the system choice of the unit installation place electrical connections water connections aeraulic ducting Neglecting these aspects may decrease the unit performances and life 12 4 POSITIONING Verify unit weig...

Page 66: ...ber label Make sure that the unit supply line is selected at start Shelter the cables using adequate measure fairleads Before starting work verify that the sectioning device at the start of the unit power line is open blocked and equipped with sign warning First create the earthing connection Prior to powering the unit ensure that all the protections that were removed during the electrical connect...

Page 67: ...f Periodically check that all of the panels are correctly closed and fixed If there is a fire the temperature of the refrigerant could reach values that increase the pressure to beyond the safety valve with the consequent possible projection of the refrigerant itself or explosion of the circuit parts that remain isolated by the closure of the tap Do not remain in the vicinity of the safety valve a...

Page 68: ...pliance with CE Directive on waste electrical and electronic equipment WEEE The potential effects on the environment and on human health due to the presence of hazardous substances are shown in the use and maintenance manual in the section on residual risks Information in addition to that indicated below if required can be obtained from the manufacturer distributor importer who are responsible for...

Page 69: ...User manual ...

Page 70: ... resistances humidifier Cooling In cooling are managed the compressor and the free cooling it uses the fresh air to cool the room Mode change The change between cooling and heating can be AUTOMATIC according to the outside temperature MANUAL by the thermostat button For the automatic or manual change set the P03 ONModeMan parameter on the ambient thermostat Set Point There are two setpoint cooling...

Page 71: ...ntering inside option B C Unit D Water supply E Condensate discharge F Other control G RCW15 Remote control option H Ambient thermostat I Power supply 1 Electronic filter option 2 Kit of exhaust air filter optional recommended AIRFLOW 2020 G H I A C D E F A F 1 2 A D ...

Page 72: ...h air flow and disabling the compressor C The ambient inlet air temperature is equal to the outdoor temperature III REDUCED FLOW FOR DEHUMIDIFICATION In order to effect more effectively the fresh air dehumidification Airflow 2020 reduces the flow modulating the fan speed D so it is possible to cool the rooms by using the radiant panels and to effectively dehumidify OUTDOOR AIR temp SUPPLY temp AIR...

Page 73: ...upervisor AUTO Automatic operating Visible if active KEYS COMBINATION KEYS FUNCTIONS Ambient setpoint control up down Ventilation Alarm Eco used in combination with other keys Cooling Heating Clean ON OFF DISPLAY It displays the temperature detected in ambient Long press It scrolls down the alarm list of one code at a time Single press Alarm reset in progress Long press Button lock Button unlock L...

Page 74: ...ling symbol Use the setpoint Control buttons to set the desired setpoint HEATING Hold the Heating button for 5 seconds until is displayed the Heating symbol Use the setpoint Control buttons to set the desired setpoint In each of the two modes is possible to activate the function Ventilation only VENTILATION ONLY Hold the Ventilation button for 5 seconds until the setpoint value is replaced with To...

Page 75: ...lay will return to normal visualization after 5 seconds from the last pressure on Alarms SHUTDOWN Hold the On Off button for 5 seconds until the unit shutdown Off is displayed At the next starting the unit is started up in the last set mode SPEGNIMENTO ALARM RESET Before resetting an alarm identify and remove the cause that generated it Repeated reset can lead to irreversible damages To reset the ...

Page 76: ...NUAL STOP FOR LONG PERIODS Hold the On Off button for 5 seconds until the unit shutdown Off is displayed Position the main installation switch on Off At the next starting the unit is started up in the last set mode ...

Page 77: ...mmon detergent Rinse thoroughly in running water to avoid spillage into the served area Dry the filter The ambient filter installation is possible in 3 positions A from the top floor units B from the bottom ceiling units C lateral floor units A B C Dust and deposits could cause obstructions In addition in the pan can proliferate microorganisms and moulds It is very important to provide a periodic ...

Page 78: ... visually inspected frequently and cleaned at least every 6 months Check the filter replace if very dirty or wash it with water To clean clean in tepid water with common detergent rinse thoroughly in running water to avoid spillage into the served area dry Alternatively blowing or vacuuming Outlet Replacement of inlet filter Replacement of rectangular grille filter Square grille metal filter ...

Page 79: ...es mounted on a flexible cable vacuum cleaners etc on supply and return conduits distribution boxes grilles and aeration inlets outlets Conduits subject to dirt build up are those that extract air from the room while inlet conduits are less subject to clogging as the air is filtered if an electrostatic filter is mounted filtration improves and the air introduced CLEANING THE AERAULIC SANITISATION ...

Page 80: ...hanged by the manufacturer without prior notice All reproduction even partial is prohibited Copyright AIRWELL 3 Avenue du Centre Les Quadrants Bâtiment A 78280 GUYANCOURT France Tel 33 0 1 76 21 82 00 contact airwell res com Documentation http lh airwell res com ...

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