User manual - Humi.in.ua
Contents
1. The table below summarises the electrical data power supply voltages of the various models as well as their functional characteristics Note that some models can be powered at different voltages obviously with different current and humidity production values power supply model humidity production kg h power code voltage current A cable wiring diagram Fig w V type mm UUOIFD 0 5 40 D 230 1 0 5 L 10 a UUO1F1 0 45 40 1 115 1 0 4 1 5 10 a UU01GD 1 70 D 230 1 1 15 10 a UVO1G1 0 8 70 1 115 1 0 8 15 10 a Tab 11 a 1 tolerance allowed on rated mains voltage 15 10 2 tolerance on rated values 5 10 EN 60335 1 3 recommended values referring to PVC or rubber cable in a closed conduit 20 m 65 6 ft long compliance with standards in force is always required 4 max instant rated water vapour production average water vapour production may depend on external factors such as room temperature water quality water vapour distribution system A Important to avoid interference keep power cables separate from probe cables 11 2 Technical specifications Technical specifications UU models UU01 humidity outlet connection dia mm 40 ensure an outlet area of 1100 mm2 e g 22 x 8 mm holes supply water connection G 1 8 F temperature limits C F 1 to 40 33 8 to 104 pressure limits MPa2. Trasduttore Transducer ON Portata 10 OFF Periodo kb t Fig 13 b Trasduttore Transducer A ON Portata 50 OFF x lt Periodo b7 gt l t Fig 13 c Trasduttore Transducer Portata 75 ON OFF lt Periodo b7 gt t Fig 13 d If the flow rate is 100 the transducers are always on CAREL 13 4 Series flow rate modulation 4 transducer ver only dipswitch 8 On Atomised water flow rate can be modulated as a percentage of rated production from 10 to 100 Each pair of transducers generates 50 of total production If humidity demand from the external signal when using the optional card and proportional control and parameter PO are both 100 all four transducers will be activated For lower demand production will be split between the two pairs of transducers as follows 51 99 one pair of transducers is always activated to generate 50 of required production while the other pair modulates as described in the previous paragraph to generate the remaining percentage of production e g 75 demand one pair of transducers is always activated the other modulates at 50 as shown in Fig 13 d 10 50 one pair of transducers is always off the other modulates as described in the previous paragraph to generate the required percentage of production e g 25 demand one pair of transducers is always off the other modulates at 50 as shown in Fig 13 d Distribution of production
3. power instant water vapour production kg h Ib h see Tab 11 a power consumption at rated voltage W see Tab 11 a Tab 11 b M j En R 093 in general C 0 65 GE Rigo 20 93 Op 20 C average water vapour production is affected by factors such as room temperature water quality water vapour distribution system 21 Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 CAREL 12 HUMIDIFIER CONTROL VIA NETWORK The variables shown in the list are a set of all the internal variables DO NOT CONFIGURE ANY VARIABLES THAT ARE NOT SHOWN IN THE TABLE OTHERWISE HUMIDIFIER OPERATION MAY BE AFFECTED The serial connection M11 is configured by default with the following parameters Address 1 Baud rate 19200 bps Frame 8 N 2 12 1 Supervisor variable list CAREL Weu analogue variables Modbus REGISTERS R W 1 param d0 Th probe temperature reading R 2 param d1 Th probe humidity reading R 3 param d2 Probe reading R 4 param d5 Set point trimmer reading R CAREL a integer variables Modbus REGISTERS R W 1 129 Level access password R W 2 130 Firmware release R 15 143 Alarms see Cap 8 ALARMS R W bitO EO Alarm bit1 Et Alarm bit2 EF Alarm bit3 Ed Alarm bit4 EP Al
4. 0300056EN rel 1 2 15 01 2013 CAREL 4 4 Auxiliary card connections optional o 29 GND 21Vdc 1 2 3 4 5 il 1 2 A ii al B 6 MAZA HE 111 0000000 0000000 Fig 3 a J8 LAN terminal connection optional with 30 Vdc power supply 24 Vac rectified M9 LAN AUX serial connector M10 10 1 Analogue proportional controller probe humid 10 2 GND analogue proportional controller probe humid 10 3 21Vdc for active probe supply 10 4 NU 10 5 N U J17 AUX input The auxiliary card features the following connections ON OFF CONTROLLER humidostat or remote switch jumper inputs M14 1 and M14 2 enable on the main board connect terminals M10 1 and M10 2 to a humidostat or a remote switch voltage free contact set parameter A0 0 to enable On Off operation see Chap 7 EXTERNAL PROPORTIONAL CONTROLLER modulating jumper inputs M14 1 and M14 2 enable on the main board connect terminals M10 1 and M10 2 production request to an external controller set parameter A0 1 to enable modulating control see Chap 7 and parameter A2 depending on the chosen signal 0 to 10V 2 to 10V O to 20 4to 20 mA see Chap 7 CONTROL WITH CAREL HUMIDITY PROBE jumper inputs M
5. 15 01 2013 13 1 Ultrasound atomisation Ultrasound humidifiers atomise water through propagation of a wave generated by a piezoelectric element to the surface of the water Droplets of water thus form on the surface with the smaller ones being carried air by the forced air flow The quantity of atomised water depends on water level water temperature and distribution in the air Water level is kept constant using fill and drain valves and a level sensor Demineralised water is recommended if using mains water the scale that accumulates over time will foul the piezoelectric transducer affecting atomisation To avoid excessive scaling humidifier periodically drains and automatically refills the water see par 12 5 13 2 Control principles The humidifier can be controlled using the following signals remote ON OFF e TAM set by dipswitch e Humidity probe set by dipswitch Serial ON OFF control The action is all or nothing activated by an external contact that consequently determines the control set point and differential The external contact may be a humidistat whose status determines the operation of the humidifier contact closed the humidifier produces water vapour if the remote ON OFF contact is also closed contact open water vapour production ends Proportional control only with optional card Water vapour production is proportional to the value of a signal Y from an external d
6. A9 Minimum evaporation time for reduced production alarm min 0 200 1 bO Operating options see Tab 7 c 0 63 7 b1 Time between two washing cycles min 0 120 30 b2 __ Inactivity time for washing h 0 255 24 b3 Washing time fill drain min 0 10 2 b4 _ Start delay time S 0 240 10 bp Operating hours for CL alarm h 0 3000 1500 b6 _ Time to display new CL alarm after reset from keypad without resetting hour counter m 0 240 60 b7 Transducer modulating control period S 0 10 2 b8 Probe disconnected delay S 0 200 10 b9 TAM reading delay S 0 60 2 bA Maximum fill time min 0 30 15 bb Water refill time in production S 0 120 10 bC__ Maximum drain time S 0 240 60 bd __ Drain opening time to completely empty tank S 0 240 30 bE _ Delay time after measuring low level for refilling S 0 240 20 P1 Humidity control hysteresis rH 2 20 2 P2 Low humidity alarm threshold rH 0 100 20 P3 High humidity alarm threshold rH 0 100 80 Tab 7 b 1 To change the value from the terminal it is necessary set all related dipswitch to Off To again use the value given by the dipswitch it is necessary set one of the dipswitch to On and power off At the next reboot the control will use again the values set by the dipswitch Parameter bO bO Drain SV in Alarm relay Alarm re
7. b via network on integer variable 81 Format e g 12 release 1 2 6 6 Accessing and setting parameters The configuration parameters can be used to set and control humidifier functions and status From the main screen press ENTER for 2 seconds enter the password 77 using UP or DOWN ENTER to confirm and access the list of parameters e UP or DOWN to scroll the list ENTER to select a parameter display zer UP to modify increase the value of the parameter To scroll faster press DOWN together DOWN to modify decrease the value of the parameter To scroll faster press UP together ENTER to save the new value and return to the list of parameters or ESC to return to the list without saving the value Press ESC to return to the main screen 6 7 Parameters Recall default values The default values of the parameters can be recalled at any time from the main screen From the main screen press ENTER for 2 seconds e enter the password 50 using UP or DOWN and press ENTER The message dEF flashes to recall the default values press ENTER or ESC to exit If no button is pressed for 30 seconds the display returns to the main screen without recalling the default values 6 8 Reset hour counter from display Access parameter d3 see Chap 7 press UP and DOWN for 5 seconds When reset is complete res is shown on the display 15 Ultrasound
8. delivered directly into the air stream 1 2 Dimensions and weights 4 transducer version UU01G 2 transducer version UU01F d Ich 221 Fig 1 a UUOIF UU01G dim mm A 121 4 76 185 7 28 B 125 4 92 125 4 92 C 221 8 70 216 8 50 weights kg lb packaged 3 9 8 60 5 5 12 13 empty 2 8 6 17 4 4 9 7 Tab 1 a 1 3 Opening the packaging o Make sure the humidifier is intact upon delivery and immediately notify the transporter in writing of any damage that may be due to careless or improper transport a move the humidifier to the site of installation before removing from the packaging grasping the neck from underneath o open the cardboard box remove the protective material and remove the humidifier o The following are contained inside the packaging fig 1 A fastening bracket B tank e C fill solenoid valve D drain solenoid valve E transformer make sure voltage is correct e F cable kit 1 4 Positioning The humidifier may only be accessed by specialist personnel make sure the humidifier is level horizontally observing the minimum clearance of 20 mm on the sides to leave room for maintenance position the humidifier so as to allow the atomised water to be freely delivered position the transformer in a place that s protected against possible water leaks and in any case not undernea
9. humidity production not yet at the set point Flashing humidity production at the set point ED Alarm red LED On activation of an alarm LED flashing and buzzer active When an alarm is active pressing ESC mutes the buzzer and the LED comes on steady pressing ESC again resets the alarms see Chap 8 sec Time in seconds h Hour counter Humidity production as a percentage of rated capacity set Parameter setup aintenance request active alarm DS On steady humidifier fan operating Flashing fan on during deactivation phase amp 3 digits after 999 the display shows to indicated the 1000s the hree digits are displayed with a dot at the top between the first and second digit 588 Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 14 CAREL 6 LCDTERMINAL OPTIONAL Humidity production in progress Tank filling Water in the tank Water draining from the tank Tab 6 a 6 3 Keypad button function Esc return to the previous display rom the main screen display the humidification values see he following paragraph ah Un rom the list of parameters scroll the parameters and set the values rom the main screen display the humidification values 4 DOWN rom the list of parameters scroll the parameters and set the values or 2 seconds access the list of parameters ENTER PR
10. M15 3 M15 4 x N auxiliary card connection 5 ab 4 3 Main board connections Tab 4 Depending on the type of signal used atomized water production can be enabled and or managed in different ways ON OFF or modulating Dipswitch configuration configuration must be performed HUMIDOSTAT OR REMOTE CONTACT ON OFF action before fitting the tank Production is enabled by closing terminal M14 ON 14 can be connected to a switch a humidistat or a controller voltage ree contact max 5 Vdc open max 7 mA closed mm m mM AN TH HUMIDITY PROBE Optional fthe TH humidity probe is connected to the G terminal fig 4 a atomized water production starts ifi Fig Ah The terminal M14 is closed The humidity value measured by the probe is below the setpoint 1 Communication preset at 50 rH and modified via dipswitches 5 6 see Tab 4 a FF Serial 485 Carel Modbus The setpoint can be changed by connecting the trimmer optional to tLAN F terminal fig 4 a AN address if 1 is ON poooon _ ooooog0 FIO Oo FF OFF FF ON address 1 OFF address 2 VON _ address 3 rial 485 tLAN baud rate F 19200 9600 midity Setpoint F OFF 50 rH F ON 20 rH OFF A0 rH JON o0 rH M FF disabled O enabled 8 Production transducer management only for 4 transducer version Fig 4 d OFF gt parallel management modulation of all 4 ON gt if demand is less t
11. O 19 Open SP O Of On On 20 Open SP O On O O 21 Open SP O On O On 22 Open SP O On On O 23 Open SP O On On On 24 Open SP C Ofi O O 25 Open SP C Ofi O On 26 Open SP C Ofi On Q 27 Open SP C Ofi On On 28 Open SP E On O O 29 Open SP G On O On 30 Open SP C On On O 31 Open SP C On On On 32 Closed AL O Of O O 33 Closed AL O Of O On 34 Closed AL O Of On O 35 Closed AL O Of On On 36 Closed AL O On O O 37 Closed AL O On O On 38 Closed AL O On On O 39 Closed AL O On On On 40 Closed AL C Of O O 41 Closed AL C Ofi O On 42 Closed AL C Of On O 43 Closed AL C Ofi On On 44 Closed AL C On O O 45 Closed AL C On O On 46 Closed AL C On On Q 47 Closed AL C On On On 48 Closed SP O Of O O 49 Closed SP O Of O On 50 Closed SP O Of On O 51 Closed SP O Of On On 52 Closed SP O On O O 53 Closed SP O On O On 54 Closed SP O On On O 55 Closed SP O On On On 56 Closed SP C Ofi O Q 57 Closed SP C Ofi O On 58 Closed SP C Ofi On O 59 Closed SP C Of On On 60 Closed SP C On O O 61 Closed SP C On O On 62 Closed SP E On On Off 63 Closed SP C On On On Tab 7 c 7 3 Serial connection parameters Parameter UOM range def note CO Default display Terminal 0 5 0 C1 Baud rate 0 3 2 0 4800 bps 1 9600 bps 2 19200 bps 3 38400 bps C2 LAN address if O master C3 Serial address 1 207 1 C4 Timeout for master offline alarm S 0 240 30 The alarm is only generated if online production control is active see chap 12 2 Tab 7 d 7 4 Read only parameters Par
12. between the two pairs of transducers is rotated every hour of operation to avoid uneven ageing of the transducers 25 Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 CAREL CAREL INDUSTRIES HOs Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 e mail carel carel com www carel com Agenzia Agency Ultrasound humidifi er for fan coils 0300056EN rel 1 2 15 01 2013
13. by the ISO 9001 certified design and production system as well as by the C mark Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 CAREL Content 1 INTRODUCTION AND ASSEMBLY 7 1 1 Ultrasound humidifier 4 transducelS eesscsssssssessssssssssssssssssssssssssssssnssssnsesene 7 1 2 Dimensions and weights 13 Opening the packaging 14 Positioning 15 Fastening s s 1 6 Humidifier assembly 2 WATER CONNECTIONS 9 211 SUPpiVvWweterina ella 9 E E eeng 9 3 ATOMISED WATER DISTRIBUTION 10 3 1 Atomised water distributor 10 ST EE 0 4 ELECTRICAL CONNECTIONS 11 4 1 Electrical installation Lui 1 4 2 Power cable connection 1 4 3 Main board connections 1 4 4 Auxiliary card connections optional 2 5 STARTING USER INTERFACE AND BASIC FUNCTIONS 13 A indent id iii ae 3 5 2 Shutdown Standby 5 3 Autotest 54 LED signals 5 5 Disabling 5 6 Reset tank hour counter 5 7 Automatic washing 5 8 Washing due to inactivity 5 9 Automatic insufficient supply water management 3 6 LCD TERMINAL OPTIONAL 14 6 1 Remote display terminal 14 6 2 Meaning of the symbols 6 3 Keypad 64 Main display 6 5 Display software release 6 6 Accessing and setting parameters 6 7 Parameters Recall default values 6 8 Reset hour counter from display 7 CONFIGURATION PARAMETERS 16 Jl Basic parameters 1
14. centre 7 slow flashes OFL Master Offline Loss of connection from Check state of the yes humidification AUTO he serial master Master Cable interrupted If D37 1 To reset the alarms press ESC once to mute the buzzer press ESC a second time to completely reset the alarm Fast flash 0 2 seconds ON and 0 2 seconds OFF Slow flash 1 second ON and 1 second OFF Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 18 CAREL 9 MAINTENANCE AND SPARE PARTS 9 1 Spare parts 9 2 Tank cleaning and maintenance Table of water circuit electrical and electronic spare part numbers part number pos fig Water circuit Fill solenoid valve kit UUKFVO0000 F 9a Drain solenoid valve kit UUKDVO0000 E 9a Water circuit 2 transducers UU01F Tank complete with transducers UUKC200000 B 9a Cover with fan and level sensor UUKCO00000 L 9a Water circuit 4 transducers UU01G Tank complete with transducers UUKC400000 B 9a Cover with fan and level sensor UUKCDO0000 L 9a Electrical and electronic parts Main electronic board UUFO250000 D 9a Main board auxiliary card UUFO2M0000 D H 9a Pair of transducers with fastening UUKPZ00000 plate Electrical and electronic parts 2 transducers UU01F Power transformer UUKTFDO000 A 2a 230 24 36V Power transformer UUKTF10000 A 2a 115 24 30V Cable kit UU
15. supply water management The humidifier detects if the water supply is interrupted or insufficient by monitoring the status of the level sensor after opening the fill solenoid valve If the sensor is not activated humidification is interrupted drain is activated and the appliance waits 10 minutes before attempting to fill with water again If this attempt succeeds production will resume otherwise the appliance waits a further 10 minutes The process is repeated until the water supply returns as measured by the sensor Ultrasound humidifier for fan coils 0300056E N rel 1 2 15 01 2013 6 1 Remote display terminal The LCD terminal is an option and can only be used if the auxiliary card is fitted this too an option Fig 6 a The terminal displays humidifier status and can be used to customise operation by setting the parameters CONNECTION O FEB ceo El E Fig 6 b 1 6 wire telephone cable P N SIOCONNO00 or equivalent maximum length 2 m 6 6 ft 2 remote display terminal 3 optional card 1 For lengths exceeding 2 m 6 6 ft use shielded cable with the shield connected to the PE both at the terminal and controller end 6 2 Meaning of the symbols Power supply Green LED yo Humidifier operating yellow LED Steady
16. valve minute only per 10 see Chap 5 8 e blockage of filteron waiting minutes fill solenoid valve period 4 fast flashes Ed CN Nodrain Drain solenoid valve Check drain valve and yes humidification ESC Digital 29 L J circuit malfunction drain connection interrupted ry 5 slow flashes CL Tank maintenance 1500 operating hours for Carry out maintenance no signal only Reset hour N request signal recommended mainte on tank and transducers counter See L J nance exceeded cap 9 Chap 5 6 or 6 8 6 fast flashes PU External control Cable interrupted Check the reference yes humidification AUTO signal not connected disconnected not con signal 4 to 20 mA or 2 interrupted correctly nected correctly to 10V 2 slow flashes HA High humidity The signal from the Check humidity probe yes humidification AUTO probe indicates humidity signal cable interrupted above 80 rH 3 slow flashes H_ Low humidity The signal from the Check humidity probe yes humidification AUTO probe indicates humidity signal cable interrupted ess than 20 rH 4 slow flashes EE EEPROM alarm Problems in the EEPROM If the problem persists yes humidification If this persists contact the CAREL interrupted contact service service centre 1 fast flash EO Functional test not Functional test not If the problem persists yes humidification If this persists performed performed by manufac contact the CAREL interrupted contact service urer EEPROM problems service
17. 0 1 to 0 6 1 to 6 bar specific conductivity at 20 C 0 to 50 uS cm total hardness 0 to 25 mg l CaCO3 temporary hardness 0 to 15 mg l CaCO3 total quantity of dissolved solids cR depending on specific conductivity 1 dry residue at 180 C depending on specific conductivity iron manganese 0 mg l Fe Mn chlorides 0 to 10 ppm Cl silicon dioxide 0 to 1 mg l SiO2 chlorine ions 0 mg l Cl calcium sulphate mg l CaSO4 instant flow rate l min 0 6 drain water connection dia mm 10mm typical temperature C F instant flow rate l min 7 environmental conditions ambient operating temperature C F 1 to 50 33 8 to 122 ambient operating humidity rH 10to 60 storage temperature C F 10 to 60 14 to 158 storage humidity rH 5 to 95 41 to 203 index of protection IP20 electronic controller auxiliary voltage frequency V Hz 24 V 50 60 Hz maximum auxiliary power VA 3 control signal inputs general features can be selected for the following signals 0 to 10 Vdc 2 to 10 Vdc 0 to 20 mA 4 to 20 mA input impedance 20 kQ with signals 0 to 10 Vdc 2 to 10 Vdc 100 Q with signals 0 to 20 mA 4 to 20 mA alarm relay outputs general features 24 V max 3 W remote enabling signal input general features voltage free contact max resistance 100 O Vmax 5 Vdc Imax 5 mA
18. 14 1 and M14 2 enable on the main board connect the probe to terminals M10 1 M10 2 The power line M10 3 can be connected with cable of maximum lenght of 2 m 6 6 ft for greater lenghts use an external power supply with the signal earth electrically connected to the signal earth of the controller set parameter A0 2 to enable probe control see Chap 7 and parameter A2 depending on the chosen signal 0 to 10V 2 to 10V O to 20 4to 20 mA see Chap 7 Final checks The following conditions represent correct electrical connection mer O mains power to the humidifier corresponds to the voltage shown on the rating plate o a mains disconnect switch has been installed so as to be able to disconnect power to the humidifier o terminals M14 1 M14 2 are jumpered or connected to a contact to enable operation o if the humidifier is controlled by an external controller with auxiliary card the signal earth is electrically connected to the controller earth CAREL 5 STARTING USER INTERFACE AND BASIC FUNCTIONS Before starting the humidifier check o water connections chap 2 in the event of water leaks do not start the humidifier before having restored the connections D water vapour distribution chap 3 and electrical connections chap 4 5 1 Starting 1 The humidifier once powered and enabled for production remote on off humidistat terminal M14 Fig 4 e is ready for operation 2 Ifthere are no
19. 6 7 2 Advanced parameters 16 73 Serial connection parameters 17 N 74 Read only parameters 8 ALARMS 19 9 MAINTENANCE AND SPARE PARTS 20 91 Spare PA nia Leali AE 9 2 Tank cleaning and maintenance 9 3 Cleaning and maintenance of other components 10 WIRING DIAGRAMS 21 IO Piga ali 21 Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 CAREL 11 GENERAL FEATURES AND MODELS 22 1 1 Ultrasound humidifier models for fan coils and electrical specifications 1 2 Technical specifications 2 HUMIDIFIER CONTROL VIA NETWORK 23 2 1 Supervisor variable list 2 2 Production control via network 13 OPERATING PRINCIPLES 25 3 1 Ultrasound atomisation 3 2 Control principles 33 Fowt ratemoglarlon esst na 3 4 Modulazione della portata in serie solo ver 4 trasduttori Dipswitch 8 a ON 26 2 transducers version UU01F 4 transducers version UU01G Fig 1 Packaging Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 6 CAREL 1 INTRODUCTION AND ASSEMBLY 1 1 Ultrasound humidifier Ultrasound humidifiers can be used for vast variety of applications e g data centers climate rooms close control units and food preservation for the RH control The 2 transducer version UU01F has been specifically developed for integration into fan coils Atomised water production is 0 5 1 h UU01F and 1 1 h UU01G
20. CAREL NUMISONIC Ultrasound humidifier Ens User manual LEGGI E CONSERVA QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS gt Integrated Control Solutions Energy Savings CAREL WARNINGS CAREL humidifiers are advanced products whose operation is specified in the technical documentation supplied with the product or can be downloaded even priorto purchase from the website www carel com Each CAREL product in relation to its advanced level of technology requires setup configuration programming commissioning to be able to operate in the best possible way for the specific application The failure to complete such operations which are required indicated in the user manual may cause the final product to malfunction CAREL accepts no liability in such cases The customer manufacturer developer or installer of the final equipment accepts all liability and risk relating to the configuration of the product in order to reach the expected results in relation to the specific final installation and or equipment CAREL may based on specific agreements act as a consultant for the installation commissioning use of the unit however in no case does it accept liability for the correct operation of the humidifier and the final installation if the warnings or suggestions provided in this manual or in other product technical documents are not heeded In addition to observing the above war
21. G inside the list of parameters select and confirm like Enter on a computer keyboard Tab 6 b 6 4 Main display The humidifier display normally shows control signal status For ON OFF or proportional input signal A0 0 AO 1 AO 3 and Th probe disconnected e display input signal tank hour counter h maximum water vapour production control parameter PO control hysteresis parameter P1 For humidity probe input signal A0 2 A0 3 and Th probe connected e display humidity probe reading e display temperature Th only tank hour counter h maximum water vapour production control parameter PO control hysteresis parameter P1 e Humidity Setpoint parameter St To return to the main display press ESC Parameter CO see Chap 7 can be used to change the value shown on the main display default display input signal To modify the parameter displayed press ENTER display Set UP or DOWN to set the value ENTER to confirm the new value Press ESC to return to the main screen The parameters can also be accessed from the list of parameters see Chap 7 CAREL 6 5 Display software release 1 on power up the display shows rel x y e g rel 1 2 2 during operation a on the display from the main screen press ESC and UP together the following are shown in sequence humidifier size supply number of phases and software release
22. RWR00000 G 2a Electrical and electronic parts 4 transducers UU01G Power transformer UUKTF20000 A 2a 230 24 36V Power transformer UUKTF30000 A 2a 115 24 30V Cable kit UUKWRO00000 G 2a 115V 230V UUKWR10000 G 9a Transducer cable extension UUKPP00000 9a Tab 9 a Replacement Important replacement must only be carried out by qualified personnel with the humidifier disconnected from the power supply In normal conditions the tank requires maintenance after one year or 1500 operating hours if cleaned periodically or if not used for an extended period Replacement is required immediately even before the scheduled period should problems occur For example when scale inside the tank prevents correct operation of the piezoelectric transducers Replacement procedure 1 switch the humidifier off switch 0 and open the mains disconnect switch safety procedure 2 disconnect the transducer power cable 3 release the tank the two tabs at the rear and lift it vertically to remove it 4 clean or replace the transducers by removing the screws see Fig Ob after replacement test water tightness by filling the tank manually 5 reconnect the transducer power cables 6 reposition the tank 7 switch the humidifier on Periodical checks Each year or after no more than 1500 operating hours clean the piezoelectric transducers make sure the level sensor slides freely Important i
23. ach of children and animals Do not install and use the product near objects that may be damaged when in contact with water or condensate CAREL declines all liability for direct or indirect damage following water leaks from the humidifier Do not use corrosive chemicals solvents or aggressive detergents to clean the inside and outside parts of the humidifier unless specifically indicated in the user manual Do not drop hit or shake the humidifier as the inside parts and the linings may be irreparably damaged LEGGI E CONSERVA gt QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS CAREL adopts a policy of continual development Consequently CAREL reserves the right to make changes and improvements to any produc described in this document without prior warning The technical specifications shown in the manual may be changed without prior warning The liability of CAREL in relation to its products is specified in the CAREL genera contract conditions available on the website www carel com and or by specific agreements with customers specifically to the extent where allowed by applicable legislation in no case will CAREL its employees or subsidiaries be liable for any lost earnings or sales losses of data and information costs replacement goods or services damage to things or people downtime or any direct indirect incidental actual punitive exemplary special or consequentia damage of any kind whatsoev
24. ameter UOM range def note do Th probe temperature reading CT 0 1000 0 d Th probe humidity reading rH 0 1000 0 d2 Configurable input reading optional card rH 0 100 0 d3 Tank operating hour counter resettable see 6 10 and 12 8 h 0 9999 0 d4 Unit hour counter read only h 0 9999 0 d5 Set point trimmer reading rH 0 80 100 0 Tab 7 e after 999 the display shows 100 to indicate the 1000s the three digits are displayed with a dot at the top between the first and second digit 17 Ultrasound humidifier for fan coils 0300056E N rel 1 2 15 01 2013 CAREL 8 ALARMS red LED signal code and symbol meaning cause solution alarm relay action reset on display activation flashing 2 fast flashes Et Autotest failed Fill not connected or Check yes humidification ESC Digital 29 insufficient water supply and fill interrupted drain open valve faulty float e blockage of filter on fill solenoid valve e check drain solenoid valve and drain connection 5 fast flashes EP CD No production Malfunction of piezoe Carry out maintenance yes humidification ESC Digital 29 CN lectric transducers on tank interrupted 3 fast flashes EF CS No water Interruption to water Check yes humidification automatic after supply or fill solenoid e water supply and fill inthe 10 interrupted 10 minute wait L J valve malfunction
25. ansducers depend on to what extent the supply water mineral content exceeds the values recommended in Table 11 b pg 21 Operating conditions demineralised water with the characteristics indicated in Table 11 b supply water p 21 pressure between 0 1 and 0 6 MPa 14 5 and 116 PSI temperature between 1 and 40 C 33 8 and 104 F G1 8 F connection see par 11 2 Technical specifications no organic compounds IN Important do not add disinfectants or anticorrosive compounds to the water as these are potential irritants the use of well water industrial water or water from cooling circuits and in general any potentially chemically or bacteriologically contaminated water is prohibited 2 2 Drainwater This is not toxic and can be drained into the sewerage system Council Directive 91 271 EEC on Urban Waste Treatmen Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 CAREL 3 ATOMISEDWATER DISTRIBUTION 3 1 Atomised water distributor A Important the atomised water delivery hose the distributor the fan conveyor the elbow connection and the diffuser are not supplied with the humidifier Requirements humidifier delivery hose OD 40 mm make sure the atomised water outlet area is 1100 mm2 e g 22 holes 8 mm in diameter the hose running to the distributor should have a minimum upward gradient of 2 so that any condensate flows back into the humidif
26. arm bit5 PU Alarm bit6 H Alarm bit7 H_ Alarm bit8 EE Alarm bit9 CL Alarm 20 148 Parameter A0 Operating mode RAN 21 149 Parameter A2 Type of external sensor R W 22 150 Parameter A3 Probe minimum R W 23 151 Parameter A4 Probe maximum R W 24 152 Parameter A5 Probe offset R W 25 153 Parameter A6 Fan off delay time R W 26 154 Parameter A7 Fan speed R W 27 155 Parameter A8 Maximum evaporation time for no production alarm R W 28 156 Parameter A9 Minimum evaporation time for no production alarm R W 29 157 Parameter b0 Operating options R W 30 158 Parameter b1 Time between two washing cycles R W 31 159 Parameter b2 Inactivity time for washing on next start R W 32 160 Parameter b3 Washing time fill drain R W 33 161 Parameter b4 Start delay time R W 34 162 Parameter b5 Operating hours for CL alarm R W 35 163 Parameter b6 Time to display new CL alarm in minutes R W 36 164 Parameter b7 Transducer On Off control interval R W 37 165 Parameter b8 Probe delay disconnected R W 38 166 Parameter b9 TAM OFF delay R W 39 167 Parameter bA Maximum fill time R W 40 168 Parameter bb Refill time in evaporation R W 41 169 Parameter bC Maximum drain time R W 42 170 Parameter bd Drain opening time to completely empty tank R W 43 171 Parameter bE Delay time after measuring low level for refilling R W 44 172 Parameter CO Default display Terminal R W 45 173 Parameter C1 Parameter AO Baud rate R W 46 174 Parameter C2 tLAN address If 0 Ma
27. ed by IEC EN 60335 1 Before performing the electrical connections make sure that the unit is disconnected from the mains power supply Check that the power supply voltage of the appliance corresponds to the value indicated on the rating plate affixed to the side of the product Connect the transformer output cable to the electronic board terminal block A in Fig 4 a Connect the transformer input cable to the mains The humidifier power line must be fitted with a disconnect switch Board connections Ome avoid unwanted interference the power cables should be kept separate from the probe signal cables Main Supply Key to Fig 4 a A board power supply input from transformer 24 36V for 230V transfor mer or 24 30V for 115V transformer B transducer power cable C valve power cables L drain R fill D configuration dipswitch E TAM current transformer input for measuring current on fan neutral o 136 30V 0 24V trimmer connection to adjust set point optional Fig 4 c G e IC digital serial part no Once the electrical and water connections have been completed the M14 remote ON OFF MIA 1 M142 humidifier is ready for operation M11 RS4845 serial M11 M15 NO alarm relay M15 1 M15 2 30 Vdc output 24 Vac rectified max 3W
28. er whether contractual extra contractual or due to negligence or any other liabilities deriving from the installation use or impossibility to use the product even if CAREL or its subsidiaries are warned of the possibility of such damage DISPOSAL The humidifier is made up of metal parts and plastic parts In reference to European Union directive 2002 96 EC issued on 27 January 2003 and the related national legislation please note that 1 WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately 2 thepublicorprivatewastecollectionsystemsdefinedbylocallegislationmust be used In addition the equipment can be returned to the distributor at he end of its working life when buying new equipment 3 the equipment may contain hazardous substances the improper use or incorrect disposal of such may have negative effects on human health and on the environment 4 the symbol crossed out wheeled bin shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately 5 intheeventofillegal disposal ofelectrical and electronic waste the penalties are specified by local waste disposal legislation Warranty on materials 2 years from the date of production excluding consumables Approval the quality and safety of CAREL products are guaranteed
29. evice The type of signal can be selected between the following standards 0 to 10 Vdc 2 to 10 Vdc 0 to 20 mA 4 to 20 mA Maximum humidifier production corresponding to the maximum value of the external signal can be set from 10 to 100 of the rated value of the humidifier parameter PO Minimum production has an activation hysteresis equal to the value of P1 default 5 of the proportional band of external signal Y Produzione di vapore Steam production N PO Je aa ee ee ee le elena PA ZER OFF ON Va Fig 13 a Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 24 CAREL 13 OPERATING PRINCIPLES Automatic control with humidity probe Humidity production is controlled based on the reading of the relative humidity probe TH or connection via optional card The humidifier will produce until reaching the set point St default 50 rH with a settable activation hysteresis P1 default 5 see the figure to maintain the set point Produzione di vapore Steam production A PO St rH Fig 12 b 13 3 Flow rate modulation Atomised water flow rate can be varied by alternating on off cycles of the transducers over a set period default 2 seconds The minimum flow rate is fixed at 10 of rated production Flow rate is set based on parameter PO default 100 and the request from the external signal with optional card and proportional control
30. han 50 only one pair of transducers opera tes alternately D 5 6 O C 00002000000 N gt Tab 4 c 11 Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 485 SERIAL CONNECTION Carel Modbus protocol Fig 4 e Important for RS485 connections in household IEC EN 55014 1 and residential IEC EN 61000 6 3 environments use shielded cable with shield connected to PE both on the terminal and controller ends maximum length specified by the EIA RS485 protocol equivalent to European standard CCITT V11 using AWG26 twisted pair cable the input impedance of the 485 stage is 1 8 unit load 96 kOhm This configuration allows a maximum of 256 devices to be connected with cables in separate conduits from the power cable ALARM RELAY This is used to signal one or more alarms via a remote connection A SE EEEEEELE Fig 4 f ALARM RELAY POWER SUPPLY The connections shown in Fig 4 g can be used to directly control a light or an auxiliary relay coil 30 Vdc 24 Vac rectified 3 W max Alarm signal max 3W GND Fig 4 9 Note in industrial environments IEC EN61000 6 2 the signal cables leaving the unit must not exceed 10 m 33 ft in length remote on off digital input terminals M14 1 M14 2 and shielded cable for RS485 communication Ultrasound humidifier for fan coils
31. humidifier for fan coils 0300056EN rel 1 2 15 01 2013 CAREL 7 CONFIGURATION PARAMETERS To access and set the following parameters see chapters 6 and 12 7 1 Basic parameters Parameter UOM range def note AO Operating mode 0 3 3 0 On Off mode from auxiliary card probe input 1 Proportional mode from auxiliary probe input 2 Humidity probe mode from auxiliary card probe input 3 Auto mode if fitted humidity probe TH reading is used otherwise On Off mode from contact on main board Parameter A2 is not used A1 Unit of measure 0 Celsius 1 Fahrenheit 0 1 0 A2 Type of external sensor optional card 0 On Off 1 0 10V 2 2 10V 3 0 20 mA 4 4 20 mA 0 4 1 PO Maximum production 10 100 100 only if terminal connected otherwise values set by dipswitch P1 Humidity control hysteresis rH 2 20 2 1 St Humidity set point rH 20 80 50 only if terminal connected otherwise values set by dipswitch CO _ _ Default display Terminal 0 5 0 Tab 7 a 7 2 Advanced parameters Parameter UOM range def note A3 Probe minimum RH 0 100 0 Ad Probe maximum RH 0 100 100 A5__ Probe offset RH 99 100 0 Ap Fan off delay time min 0 240 5 A7 Fan speed 40 100 100 A8 aximum evaporation time for reduced production alarm min 0 200 30
32. ier or a special condensate drain system make sure there are no condensate leaks from the water vapour distributor e position the distributor in such a way that the air is not directed against nearby objects minimum distance 10 cm bends or choking of the hose may cause condensate to form and decrease humidity delivery avoid loads that may cause mechanical stress on the humidifier outlet connector 06500000000660000009 Fig 3 e N The elbow connector can be installed on the cover and or the fan conveyor so as to reduce the overall height occupied by the product 3 2 Diffuser li m d n Fig 3 a 2209005050500 5005000 Fig 3 f The diffuser can be installed on the cover so as to deliver atomised water directly into the room ar 3 3 Installation example Fan coil installation example Fig 3 b 3 2 Fan conveyor Fig 3 c The air flow conveyor can be installed on the top of the fan removing the protection grill so as to take in air from a different place to where i humiSonic is installed Fig 3 9 Ultrasound humidifier for fan coils 0300056E N rel 1 2 15 01 2013 10 CAREL 4 ELECTRICAL CONNECTIONS 4 1 Electrical installation 4 2 Power cable connection Correct wiring of the ultrasound humidifier is the responsibility of the final appliance manufacturer as requir
33. lay logic Osmosis Washing on Autotest standby AL active alarms NO normally open Off washing on inactivity at next start up inactivity SP set point reached NC normally closed On washing on inactivity when disabled 0 Open AL O O O Of 1 Open AL O O Ofi On 2 Open AL O O On Of 3 Open AL O O On On 4 Open AL O On Ofi Ofi 5 Open AL O On Ofi On 6 Open AL O On On Ofi 7 Open AL O On On On 8 Open AL C O Ofi Ofi 9 Open AL C O Of On 0 Open AL C O On Of 11 Open AL C O On On 12 Open AL C On Ofi Ofi 13 Open AL C On Ofi On 4 Open AL E On On Ofi 5 Open AL C On On On 16 Open SP O off Ofi off Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 16 CAREL bO Drain SV in Alarm relay Alarm relay logic Osmosis Washing on Autotest standby AL active alarms NO normally open Off washing on inactivity at next start up inactivity SP set point reached NC normally closed On washing on inactivity when disabled 17 Open SP O Of O On 18 Open SP O Of On
34. n the event of water leaks disconnect the humidifier from the power supply and repair the leak 9 3 Cleaning and maintenance of other components e when cleaning plastic parts do not use detergents solvents descaling can be performed using a 20 acetic acid solution followed by rinsing with water Maintenance checks on other components o fill solenoid valve After having disconnected the cables and hoses remove the solenoid valve check the inlet filter and clean if necessary using water and a soft brush Important after having replaced or checked the water circuit components make sure the connections are restored correctly Fig 9 c Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 GI CAREL 10 WIRING DIAGRAMS 10 1 Diagram 5 i LL n Vi O gt SE eee gt N i z 2 gt 22 E AA QU J Es Pec U 1 E H H I g L H H i E N IW A E VU gt SS LOW LEV N E S i O A sel L TI al Z HIGH LEV Ge z 7 g y gt Ko M N o m Fig 10 a Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 20 CAREL 11 GENERAL FEATURES AND MODELS 11 1 Ultrasound humidifier models for fan coils and electrical specifications
35. nings and suggestions the following warnings must be heeded for the correct use of the product DANGER OF ELECTRIC SHOCK The humidifier contains live electrical components Disconnect the mains power supply before accessing inside parts or during maintenance and installation DANGER OF WATER LEAKS The humidifier automatically and constantly fills drains certain quantities of water Malfunctions in the connections or in the humidifier may cause leaks A Important Environmental and power supply conditions must conform to the values specified on the product rating labels e The product is designed exclusively to humidify rooms directly Only qualified personnel who are aware of the necessary precautions and able to perform the required operations correctly may install operate or carry out technical service on the product Only water with the characteristics indicated in this manual must be used for water vapour production e All operations on the product must be carried out according to the instructions provided in this manual and on the labels applied to the product Any uses or modifications that are not authorised by the manufacturer are considered improper CAREL declines all liability for any such unauthorised use Do not attempt to open the humidifier in ways other than those specified in the manual e Observe the standards in force in the place where the humidifier is installed e Keep the humidifier out of the re
36. other external connections the humidifier will start and operation will only stop ifthe enabling signal M14 is no longer present 3 If TH humidity probe optional is connected to terminal G Fig 4 a the humidifier will operate until reaching the humidity set point default 50 rH See chap 12 9 4 If terminal E Fig 4 a is connected to the current transformer TAM optional and is enabled dipswitch 7 Fig Ac the humidifier will only start if current is measured on the fan neutral wire on the prin cipal system This wire must run inside the TAM In this way atomised water will only be produced when the fan is on 5 2 Shutdown Standby 1 To switch the humidifier off disconnect power 2 The humidifer goes into standby when the remote on off contact is open TH probe is fitted and the humidity set point has been reached no current is measured by the TAM if fitted and enabled the on off contact is open and serial enabling is set to O see Chap 12 2 a modulating signal is used optional card and there is no request When the humidifier is in standby the unit is emptied automatically When in standby the fan stays on for 5 min 5 3 Autotest Whenever the humidifier is first started from off if enabled and humidity production is required a test cycle is run A complete fill and drain cycle is performed during which the level sensor is monitored if the test is successful regular water vapour
37. production will start If the test fails production is disabled see the alarm table 5 4 LED signals A light is fitted on the top of the humidifier to indicate operating status GREEN LED ORANGE LED Steady Humidity production Waiting Flashing slowly Set point reached Standby Flashing quickly Fill or Autotest Washing Flashing slowly 1s ON and 1s OFF Flashing quickly 0 2s ON and 0 2s OFF When the production alarm EP first occurs and following a fill alarm EF either during operation or autotest the controller places the humidifier in waiting mode during which production stops and the drain is opened After a waiting time of 10 minutes the controller tries to restart normal production If the EF alarm persists the controller returns to wait mode while if another EP alarm occurs the controller will be disabled The red LED means an alarm is active See chapter 8 for information on alarms 5 5 Disabling The humidifier can be disabled in three different ways e Opening contact M14 1 and M14 2 enabling signal Ifthe current transformer TAM is fitted and enabled dipswitch 7 ON and no current is measured e There are active alarms see Chap 8 5 6 Reset tank hour counter The humidifier is fitted with an hour counter that records operation After a set number of hours 1500 a signal is activated to indicate maintenance should be performed on the tank and operation of the pie
38. ster controller R W 47 175 Parameter C3 Serial address R W 48 176 Parameter PO Maximum flow rate R W 49 177 Parameter P1 Humidity control hysteresis R W 50 178 Parameter P2 Low humidity alarm threshold R W 51 179 Parameter P3 High humidity alarm threshold R W 52 180 Parameter SP Humidity set point R W 53 181 Parameter d3 Operating hour counter R 54 182 Parameter d4 Unit hour counter not resettable R W 60 188 Serial request If digital 37 is setted R W 65 192 Parameter C4 Timeout for offline master serial R W Tab 12 a Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 22 CAREL E digital variables Modbus COILS R W 2 Just started flag R 3 Humidifier ready to produce R 4 Humidity set point reached R 5 Green LED R 6 Red LED R 7 Yellow LED R 8 Remote On Off R 9 Low level R 10 High level R 11 Aux level R 12 Autotest completed R 14 BMS serial in tLAN mode R 15 TAM enabled R 16 TAM reading R 17 Terminal connected R 18 Production in progress R 19 Fill R 20 Drain R 21 Transducer 1 R 22 Transducer 2 R 23 Fan R 24 Alarm relay R 25 Auxiliary relay R 26 Manual drain R W 27 Disable from serial R W 28 Reset hour counter R W 29 Reset alarms R W 30 Washing due to inactivity activated R 31 Functional test performed R 33 Unit of measure RAW 37 Serial control enable RAW Tab 12 b 12 2 Prod
39. th the humidifier 1 5 Fastening Fastening instructions 1 make two holes as shown in Fig 1 b 2 fixthefastening bracket using two M4x12 screws supplied see Fig 1 0 using a spirit level to make sure installation is horizontal gt 200 mm 110 Fig 1 b Fig 1 c Ultrasound humidifier for fan coils 0300056E N rel 1 2 15 01 2013 1 6 Humidifier assembly Connect the valves as shown in Figure 1 d and 1 e A Important insert an o ring before the drain valve Fig 1 e Nice correct wiring of the ultrasound humidifier is the responsibility of the final appliance manufacturer as required by IEC EN 60335 1 e Connect the valve power cable e Connect the transformer power cable 24Vac 30 36Vac Drain Fill Piezo r p D Fig 1 f 1 Connect the piezoelectric element power cable 2 grip the tank A with two hands 3 place the tank vertically on the fastening structure first aligning the connector on the tank with the electronic board and then the fill and drain hoses with the corresponding valves 4 apply pressure vertically until the tank is in position i e the tabs are aligned Ultrasound humidifier for fan coils 0300056EN rel 1 2 15 01 2013 NG HEY 1 DI CAREL 2 WATER CONNECTIONS A Important before proceeding with the water connections make s
40. uction control via network To control production via a he connection configure the humidifier using following parameters Digital 27 Digital 37 and Integer 60 Modbus 188 When the D37 is at 1 the humidifier excludes the external command signals external regulator or probes and uses the value of Integer 60 modbus 188 as like comand signal The humidity production can be managed in two modes To manage the production level in percentual mode SetD37 1 e Set parameter AO 1 Carel 20 Modbus 148 Proportional Mode Set integer variable 60 Carel 188 Modbus to the desired level 0 1000 0 100 0 To manage the production with a humidity probe managed by the master e SetD37 1 Set parameter AO 2 Carel 20 Modbus 148 Humidity probe Mode e Set integer variable 60 Carel 188 Modbus to the desired level 0 1000 0 100 0 rH Set integer variable 52 Carel 180 Modbus to the desired humidity setpoin When the D37 is at 1 if the communication is lost for the seconds settled by parameter C4 is generated the Master Offline alarm see alarms table and the production stops Production is activated deactivated via digital parameter D27 see parameter table If D27 1 the humidifier is disabled and production stops if D27 0 the humidifier is enabled and production is activated D27 is independent from the state of D37 23 Ultrasound humidifier for fan coils 0300056E N rel 1 2
41. ure that the humidifier is not connected to the mains power supply Drain Fill 90 gt il H ka 7 T D n y Fig 2j bottom view water inlet water drain lt a lt y Fig 2 k Water connections parts not included 1 Install a manual shut off valve upstream of the installation so as to shut offthe water supply 2 use a hose to connect the humidifier to the water supply the product is supplied with a slide on elbow connector 3 install a mechanical filter 60 uS to trap any solid impurities connected downstream of the water tap 4 connect a section of drain hose minimum inside diameter 6 mm prepare a funnel to interrupt continuity in the drain line connect a drain trap to prevent bad odours Acta When installation is completed flush the supply hose for around 30 minutes by piping water directly into the drain without sending it into the humidifier This will eliminate any scale or processing residues that may block the fill valve 2 1 Supply water The ultrasound humidifier works on demineralised water Using normal water will shorten transducer life specifically maintenance intervals for cleaning or replacing tr
42. zoelectric elements checked see Chap 9 Maintenance and spare parts on p 19 and chap 8 Alarm table on p 18 To reset the hour counter at any time proceed as follows Switch the humidifier off Wait for the tank to empty completely e Close the water supply tap Remove the tank making sure to disconnect the piezoelectric element power supply Open the On Off contact Switch the humidifier on WITHOUT THE TANK The yellow LED will flash Close the On Off contact the yellow LED will remain on steady Switch the humidifier off e Reposition the piezoelectric element connector replace the tank and open the water supply tap Switch the humidifier on 5 7 Automatic washing The humidifier automatically runs a washing cycle every 30 minutes of continuous operation The washing cycle involves a complete drain cycle a phase in which fill and drain are activated together default 2 minutes to flush out of any residues in the tank a complete fill cycle and finally another complete drain cycle During this operation water vapour production is stopped 5 8 Washing due to inactivity If the humidifier remains inactive on but in standby for an extended period default 24 hours a washing cycle is performed as described in the previous paragraph This cleans the tank from any residues e g dust that may have accumulated during the period of inactivity 5 9 Automatic insufficient
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