VENTS MICRA 60
Contents
1. The temperature sensor downstream of the heat exchanger in the exhaust Control unit air duct provides the heat exchanger freezing protection If the exhaust air Extract fan temperature drops down below 3 C 37 4 F the heat exchanger freezing danger is registered In this case the supply fan is turned off and the unit operates in the extract mode only After the heat exchanger is warmed up and the freezing danger is no longer imminent the unit reverts to the standard operation mode Unit operation logic Warm stale extract air from the room flows through the air ducts to the unit is purified in the extract filter then it is moved to the heat exchanger and exhausted outside by the extract fan Clean cold air from outside is moved by supply fans to the unit where itis Extract air purified through the supply filter Then clean air flows through the heat exchanger and is supplied to the room eS Heat energy contained in the warm extract air is transferred to the fresh intake inside of the heat exchanger Heat recovery minimizes heat energy losses and operating heating costs Supply air 3 LLL GLA Intake air Aann 1 P d Exhaust air gt Micra 60 MOUNTING AND SET UP The unit mounting is carried out with the master plate from the delivery set and two air ducts of required length or any of the mounting kits MK1 Micra 60 or MK2 Micra 60 special accessorie2. The manufacturer s warranty does not apply to the following cases User s failure to provide the unit with the entire delivery package as stated in the user s manual or with missing component parts previously dismounted by the user e Mismatch of the unit model and make with the respective details stated on the unit packing and in the user s manual User s failure to ensure timely technical maintenance of the unit External damage to the casing excluding external modifications of the unit as required for its installation and the internal components of the unit e Alteration of the unit design or engineering changes of the unit Replacement and use of the unit assemblies parts and components not approved by the manufacturer Unit misuse User s violation of the unit installation regulations User s violation of the unit control regulations Unit connection to the power pains with a voltage different from the one stated in the user s manual Unit breakdown due to voltage surges in the power mains User s discretionary repair of the unit e Unit repair performed by any persons without the manufacturer s authorization Expiry of the unit warranty period e User s violation of the established regulations specific to the unit transportation e User s violation of the unit storage regulations Wrongful acts against the unit committed by third persons Unit breakdown due to circumstances of insuperable for
3. Micra 60 FAULT HANDLING FAULTS AND FAULT HANDLING No bowersupnl Make sure that the unit is properly connected to the power mains i se and make any corrections if required Tira matar te anitned the impaler edesare Turn the unit off Troubleshoot the motor jam pleaded Clean the blades Restart the unit Overcurrent resulted from short circuit in the Turn the unit off electric circuit Contact the service centre The extract filter is clogged Clean or replace the extract filter eCheck the heat exchanger for icing The h xchanger is frozen h gt poe dag une a Turn the unit off and let ice melt Low set fan speed Set higher speed The filters the fans or the heat exchanger is Clean or replace the filters are soiled Clean the fan and the heat exchanger The impeller is soiled Clean the impeller s Loose screw connection Tighten the screws Install the anti vibration connectors not included into the delivery No anti vibration connectors are installed set STORAGE AND TRANSPORTATION RULES Store the unit in the manufacturer s original packing box in a dry ventilated premise at the temperatures from 5 C 5 F up to 40 C 104 F Storage environment must not contain aggressive vapours and chemical mixtures provoking corrosion insulation and sealing deformation Use hoist machinery for handling and storage operations to prevent the unit damage in consequence of falling or excessiv
4. 121 UNIT TECHNICAL DATA Speed 1 2 3 Supply Voltage 50 60 Hz V 1 100 240 Power W 4 2 9 6 15 4 Total unit current A 0 02 0 04 0 07 Air capacity m h CFM 30 17 7 45 26 5 60 35 3 RPM min 1165 1720 2685 Noise level dB A Sones 22 0 38 25 0 42 29 1 0 Max transported air temperature C F from 20 4 up to 50 122 Ingress Protection IP22 Casing material Painted steel Insulation PE foam Bien extract G4 supply G4 Connected air duct diameter mm 125 5 Weight kg 10 3 22 7 Heat recovery efficiency 79 74 70 Heat exchanger type Counterflow Heat exchanger material Plastic amp VENTS WN Wantilatvion syvstenl Gonn DESIGN AND OPERATING LOGIC The unit casing is made of painted steel internally filled with a layer of heat and Supply fan sound insulating material Supply filter e The unit casing incorporates a plate heat exchanger a supply and an extract fan 7 e The front panel is installed on the Heat exchanger rotating sleeves to enable quick access for the unit servicing Extract filter e The casing bottom is equipped with a protecting service panel to enable service access to the automation unit The G4 supply filter is installed between the fan and the heat exchanger to provide supply of filtered air to the room The G4 extract filter is installed in the upper part of the front panel Front panel ws a Ae
5. o USER S MANUAL i Micra 60 Single room heat recovery air handling unit O WEIMTS Safety requirements Introduction Use Delivery set Designation key Main technical parameters Design and operating logic Mounting and set up Connection to power mains Unit control Maintenance Troubleshooting Storage and transportation rules Manufacturer s warranty Acceptance certificate Seller s information Mounting Certificate Warranty Card NOU WM NO Ww 13 13 14 14 15 16 16 16 17 amp VENTS WN Wantilatvion syvstenl Gonn SAFETY REQUIREMENTS Read the user s manual carefully prior to the operation and installation of the single room heat recovery unit hereinafter the unit Installation and operation of the unit shall be performed in accordance with the present user s manual as well as the provisions of all the applicable local and national construction electrical and technical codes and standards The warnings contained in the present user s manual must be considered most seriously since they contain vital personal safety information e Failure to follow the safety regulations may result in an injury or unit damage e Read the manual carefully and keep it as long as you use the unit While transferring the unit control the user s manual must be turned over to the receiving operator A Symbol legend used in the manual DO NOT UNIT MOUNTING SAFETY PRECAUTIONS The un
6. THE UNIT IS NOT INTENDED TO BE USED BY CHILDREN PHYSICALLY OR MENTALLY DISABLED PERSONS PERSONS WITH SENSORY DISORDER PERSONS WITH NO APPROPRIATE QUALIFICATION INSTALLATION AND CONNECTION OPERATIONS MUST BE PERFORMED ONLY BY PROPERLY QUALIFIED PERSONNEL AFTER THE APPROPRIATE SAFETY BRIEFING THE UNIT INSTALLATION PLACE MUST PREVENT ACCESS BY UNATTENDED CHILDREN DELIVERY SET Micra 60 unit 1 item Fastening set 1 item User s manual 1 item Master plate 1 item Packing box 1 item Sensor or mechanical speed switch 1 item DESIGNATION KEY Micra 60 AX Unit name Air capacity m h Speed swith system 3 mechanical speed switch P3 1 300 4 sensor speed switch SP3 1 Micra 60 MAIN TECHNICAL PARAMETERS The unit is designed for indoor application with the ambient temperature ranging from 1 C 34 F up to 40 C 104 F and relative humidity up to 80 The transported air temperature must be from 20 C 4 F up to 50 C 122 F The unit is classified as a class electric appliance Ingress Protection IP rating from solid objects and liquids IP 44 for the unit motors IP 22 for the assembled unit integrated into air ductworks The unit design is regularly improved so some models may slightly differ from those ones described in this manual 187 7 3 8 UNIT OVERALL DIMENSIONS MM 526 20 11 16 393 15 1 2 124 Eoi
7. the unit from power supply prior to maintenance Do not damage the power cable while operating the unit Do not put any objects on the power cable Do not open the operating unit In case of long lasting operation of the unit check the mounting reliability periodically Do not let air flow from the unit be directed to the open flame devices or candles G2 VENTS WA WaNntilavion s 7stehn Conn boz 1 INTRODUCTION This user s manual includes technical description operation installation and mounting guidelines technical data for the single room heat recovery air handling unit VENTS Micra 60 hereinafter the unit USE The single room heat recovery air handling unit is an energy saving appliance based on heat recovery technology It is one of the energy saving components used in buildings and premises The unit is a component part of a ventilation system and is not designed for stand alone operation The unit is designed to arrange permanent controllable air exchange in flats cottages hotels cafes and other domestic and public premises The filtered air is warmed up by means of the recovered extract air heat energy The unit is designed for wall surface mounting The unit is rated for continuous operation Transported air must not contain any flammable or explosive mixtures evaporation of chemicals coarse dust soot and oil particles sticky substances fibrous materials pathogens or any other harmful substances
8. IT MOUNTING WITH THE MK1 MICRA 60 MOUNTING SET The MK1 Micra 60 mounting set is designed to prepare a mounting site for installation of the Micra 60 unit at general construction stage The set is not included into the delivery and is available on separate order The MK1 Micra 60 mounting set includes plastic air duct 125 mm 5 500 mm 19 11 16 long 2 items paper master plate 2 items Mounting sequence of the MK1 Micra 60 set 1 Fix the first master plate on the inner wall side with a sealing tape at a required height 2 Use the master plate to mark two 130 5 1 8 mm holes for the air ducts and two 8 mm 5 16 holes for the fixing dowels of the unit 3 Remove the master plate and drill through holes for the air ducts and the holes 60 mm 2 3 8 deep for the dowels 4 Re install the first master plate with a sealing tape back Fix the second master plate on the outer wall side to align the air ducts with respect to each other Fix the second master plate somewhat lower to ensure the minimum slope 3 for the air ducts Before installation of the master plate press the marked perforated opening on the master plate and remove the master plate cut outs 5 Install the air ducts into the master plate holes and seal those with a mounting foam through the openings in the master plate Install the air ducts sloped down by 2 3 to enable the condensate drainage 6 After the mounting foam gets hard see the s
9. LE TIGHTENING THE SCREWS TO AVOID THE SPEED SWITCH CASING DEFORMATION Route all the required cables and wires to the speed switch installation place Insert the junction box from the delivery set inside the wall P3 1 300 mechanical speed switch mounting Connect the executive element according to the wiring diagram in page 12 and insert it into the junction box Fasten the executive element with two screws from the delivery set Cover the executive element of the speed switch with a decorative panel and press the latches to fix the panel SP3 1 sensor speed switch mounting Undo gently the switch front panel latches Remove the back panel Fix the back panel to the wall through the fastening openings Connect the control cable to the sensor speed switch following the wiring diagram page 12 Install the front panel of the speed switch on the latches CONNECTION TO POWER MAINS Micra 60 DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY ELECTRIC INSTALLATION OPERATIONS CONNECT THE UNIT TO A CORRECT INSTALLED SOCKET WITH A GROUNDED TERMINAL ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WARRANTY LOSS e Each wire cross section is min 0 25 mm2 The maximum length of the cable from the unit to the control unit is 30 m RT1 Stick Circ Cont Cire 4 12V 5 GND 4 iD inrtow_oin 3 tick i
10. P inrow_pwm 2 oP putrtow_pwh 1 Stick PE PE 5 GND Cont Circ 4 12V N L 1 a 3 Stick CONTROLLER e The unit is rated for connection to single phase ac 1 100 240 V 50 60 Hz power mains The control unit is installed under the unit protecting panel The unit is connected to the control unit via a 3 m long four wire cable from the delivery set WIRING DIAGRAM FOR THE UNIT WITH P3 1 300 MECHANICAL SPEED SWITCH yellow green supply D 2 white 2 PWI extract 3 PE PE PE 2 LIL L 1 NIN N 5 N N ATENE brown speed High ellow 3 set Middle green 7 me LI Low white gt O O o o 3 2 1 C B o o O O S WIRING DIAGRAM FOR THE UNIT WITH SP3 1 SENSOR SPEED SWITCH brown yellow green white OUT OUT OUT OUT IN L4 L13 L2 ui L Input Voltage 110 240 V Output current 1A G MENTS WA WaNntilavion s 7stehn Conn XE ind UNIT CONTROL P3 1 300 MECHANICAL SPEED SWITCH e To activate a required unit speed rotate the speed knob clockwise and select one 1 2 of three speed settings 1 low speed OFF 3 2 middle speed 3 high speed To turn the unit off rotate the speed knob counter clockwise and set it to OFF position Jo A 3 4 Z SP3 1 SENSOR SPEED SWITCH To act
11. ae amp VENTS 2 Use a master plate to mark two 130 mm 5 1 8 holes for the air ducts and two 8 mm 5 16 holes for the dowels 3 Remove the master plate and drill through holes for the air ducts and the 60 mm 2 3 8 deep holes for the dowels Drill the holes for the air ducts sloped down by 2 3 Then insert the dowels included into delivery set into respective holes 8mm 5 16 60 mm 2 3 8 2 holes ai 130mm 5 1 8 L 2 holes N slope 3 a een ery X T zI I slope 3 i o Di o L 10 mm 3 8 4 Re install the master plate with a sealing tape back Fix the master plate from the MK1 Micra 60 or MK2 Micra 60 mounting kit on outer wall side to align the air ducts with respect to each other Fix the master plate from the mounting kit somewhat lower to ensure the minimum required slope 3 Before mounting the master plate press the perforated holes to remove the master plate fragments and prepare holes for the air ducts 5 Insert the air ducts inside the holes in the master plate designed for the air ducts and se
12. al those with a mounting foam through the holes in the master plate Install the air ducts sloped down by 2 3 to ensure the condensate drainage from the unit 6 After the mounting foam gets hard see the solidification time in the product specification remove the master plate and cut off the protruding parts of the air ducts to be flush with the inner wall On outer wall side the air ducts must protrude for 10 mm 3 8 to prevent condensate dropping on the wall 7 Unit installation sequence Open the front panel and remove the heat exchanger Connect the unit spigots to the plastic air ducts Fix the unit to the wall with the screws 5 0x50 from the delivery set by inserting those to the 8 mm 5 16 holes Install the heat exchanger and close the front panel Install the NB Micra 60 outer ventilation hood on outer side of the building to prevent ingress of large foreign objects into the air ducts Attention The round plastic air ducts and the outer ventilation hood are not included into the delivery set and are available on separate order You may use other ventilation grilles and hoods of the matching size Micra 60 UN
13. ce fire flood earthquake war hostilities of any kind or blockade Missing seals if provided by the user s manual e Failure to provide the user s manual with the sale date stamp e Missing payment document certifying the unit purchase FOLLOWING THE REGULATIONS STIPULATED HEREIN WILL ENSURE A LONG AND TROUBLE FREE OPERATION OF THE UNIT USERS CLAIMS SHALL BE SUBJECT TO REVIEW ONLY UPON PRESENTATION OF THE UNIT THE PAYMENT DOCUMENT AND THE USER S MANUAL WITH THE SALE DATE STAMP G2 VENTS ied Mira Go ACCEPTANCE CERTIFICATE Product Type The single room heat recovery air handling unit The unit is recognized as serviceable We hereby declare that the product complies with the essential protection requirements of Electromagnetic Council Directive 2004 108 EC 89 336 EEC and Low Voltage Directive 2006 95 EC 73 23 EEC and CE marking Directive 93 68 EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility This certificate is issued following test carried out on samples of the product referred to above Quality Inspector s Stamp SELLER S INFORMATION This is to certify delivery of the complete unit with the user s manual The warranty terms are hice a caudk ee acknowledged and accepted Seller s seal MOUNTING CERTIFICATE Company name Telephone Installation technician s full name Installation technician s company seal This is t
14. e oscillation Fulfil the handling requirements applicable for the applicable freight type Transportation with any vehicle type is allowed provided that the unit is protected against mechanical and weather damage Avoid any mechanical shocks and strokes during handling operations amp VENTS WN Wantilatvion syvstenl Gonn MANUFACTURER S WARRANTY The manufacturer hereby warrants normal operation of the unit over the period of 24 months from the retail sale date provided the user s observance of the transportation storage installation and operation regulations Should any malfunctions occur during the unit operation through the manufacturer s fault during the warranty period the user is entitled to elimination of faults by means of warranty repair performed by the manufacturer The warranty repair includes work specific to elimination of faults in the unit operation to ensure its intended use by the user within the warranty period The faults are eliminated by means of replacement or repair of the complete unit or the faulty part thereof The warranty repair does not include Routine maintenance unit installation dismantling unit setup To benefit from warranty repair the user must provide the unit the user s manual with stamped sale date and the payment document certifying the purchase The unit model must comply with the one stated in the user s manual Contact your Seller for warranty service of the unit
15. ening on the master plate and remove the master plate cut out 5 Install the air ducts into the master plate holes and seal those with a mounting foam through the openings in the master plate Install the air ducts sloped down by 2 3 to enable the condensate drainage 6 After the mounting foam gets hard see the solidification time in the product specification remove the master plate and cut off the protruding parts of the air ducts to be flush with the inner wall On the outer wall side the air ducts must protrude by 10 mm 3 8 to prevent condensate dropping on the wall 7 Install the outer ventilation hood NB Micra 60 on the outer wall side to prevent ingress of large foreign objects into the air ducts Installation of the NB Micra 60 outer hood is carried out with four 8x40 screws and dowels and is carries out as follows J lean the NB Micra 60 outer ventilation hood against the wall J mark fastening holes drill four 8 mm 5 16 holes 40 mm 1 9 16 deep install 8x40 dowels install the NB Micra 60 ventilation outer hood fix the NB Micra 60 outer hood with screws amp VENTS WN Wantilation syvstenl Gon SPEED SWITCH MOUNTING MAKE SURE THAT THE SPEED SWITCH IS NOT DAMAGED DO NOT OPERATE A DAMAGED SPEED SWITCH DO NOT INSTALL THE SPEED SWITCH ON AN UNEVEN SURFACE DO NOT APPLY EXCESSIVE FORCES WHI
16. it must be disconnected from the power supply prior to every installation or repair operation The unit must be grounded The unit must not be operated outside the temperature range stated in the user s manual Do not use damaged equipment or conductors to connect the unit to power or in aggressive or explosive environments mains While installing the unit follow the safety regulations specific to the use of electric tools Do not change the power cord length at your own discretion Do not bend the power cord Avoid damaging the power cord Unpack the unit with care Do not position any heating devices or other equipment in close proximity to the unit power cord Do not touch the controller or the remote control with wet hands Do not carry out the unit maintenance with wet hands Use the unit only as intended by the manufacturer Do not connect clothes dryers or similar equipment to the unit or the ventilation system Do not sit on the unit and do not put any objects on it Do not let children operate the unit Keep explosive and inflammable products away of the unit In case of unusual sounds smoke disconnect the unit from power supply and contact the service centre Do not block the air duct when the unit is on Micra 60 Do not wash the unit with water Protect the unit electric parts from water ingress Do not put any containers with water for example vases on the unit Disconnect
17. ivate a required unit speed touch a respective speed button on the sensor panel a low speed middle speed high speed For speed changeover touch a respective speed button The active speed button glows blue e To turn the unit off touch a respective current speed button again The sensor switch panel is not lighted when the unit is off The speed switch generates a sound signal each time the sensor panel is touched MAINTENANCE DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE OPERATION WITH THE UNIT The recommended unit maintenance periodicity is 3 4 times per year Maintenance of the unit means regular cleaning of the surfaces of dust and cleaning or replacement of the filters To remove dust use a soft brush cloth or a vacuum cleaner Do not use water abrasive detergents solvents sharp objects The impeller blades must be cleaned once in year Clogged filters increase air resistance and impair the unit air capacity Clean the filters with a vacuum cleaner or flush under running water The filters must be cleaned at least 3 4 times per year Casing Supply filter Heat exchanger Extract filter Front panel Clean the heat exchanger regularly to maintain its high heat recovery efficiency Remove the heat exchanger of the unit prior to the cleaning operation Clean the heat exchanger with a vacuum cleaner or flush it under running water VENTS r ae w
18. o certify that the works specific to the unit installation have been performed in accordance with all the applicable provisions of local and national construction electrical and technical codes and standards The unit operates normally as intended by the manufacturer amp VENTS WN Wantilation svstenl conn WARRANTY CARD Product type The single room heat recovery air handling unit Pe aie iai wee wareno OOOO Seller s seal O VENTE
19. olidification time in the product specification remove the master plate and cut the protruding parts of the air ducts to be flush with the inner wall On the outer wall side the air ducts must protrude by 10 mm 3 8 to prevent condensate dropping on the wall Wall Fasteners Round air duct sloped down by 2 3 Micra 60 unit Outer ventilation hood Round air duct sloped down by 2 3 UNIT MOUNTING WITH THE MK2 MICRA 60 MOUNTING SET The MK2 Micra 60 mounting set is designed for the Micra 60 unit mounting and is available upon separate order The MK2 Micra 60 mounting set includes plastic air duct 125 mm 5 500 mm 19 11 16 long 2 items paper master plate 1 item NB Micra 60 outer ventilation hood 1 item 8x40 screw and dowel 4 items Mounting sequence of the MK2 Micra 60 set 1 Fix the master plate from the delivery set on the inner wall side with a sealing tape at the required height 2 Use a master plate to mark two 130 5 1 8 mm holes for the air ducts and two 8 mm 5 16 holes for the fixing dowels of the unit 3 Remove the master plate and drill through holes for the air ducts and the holes 60 mm 2 3 8 deep for the dowels 4 Re install the master plate with a sealing tape back Fix the master plate from the mounting set on the outer wall side to align the air ducts with respect to each other Before installation of the master plate press the marked perforated op
20. s The mounting set MK1 Micra 60 is specially designed for mounting of the unit at general construction stage It includes two plastic air ducts 500 mm 19 11 16 long and two master plates for marking holes on inner and outer wall sides The mounting set MK2 Micra 60 is specially designed for mounting of the unit in a ready built premise It includes two plastic air ducts 500 mm 19 11 16 long a master plate for marking holes and an outer ventilation hood NB Micra 60 that prevents ingress of foreign objects inside the unit If the building s wall thickness is above 500 mm 19 11 16 prepare two extra 125 mm 5 air ducts of required length PAPER MASTER PLATE FOR HOLE MARKING MM INCHES drill 2 holes in the wall 60 mm 2 3 8 239 9 7 16 deep with a 8mm 5 16 tool ei 160 6 5 16 o n S Sno a l 2 holes for the round 125 mm 5 duct Fill fan i the gaps between the wall and the air duct o E Te with a mounting foam x i H oO S amp Ne ON i a seder re i 2holes for the round 125 mm 5 O 1 C eair duct wth a mounting foam ore ten Q i a wos r i eee eee as 1 i I wn ae E ae UNIT MOUNTING The unit is mounted as follows 1 Fix the master plate from the delivery set on the wall with a sealing tape on a required level ati ee es
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