Home

Maintenance and operation manual

Contents

1. More detailed information about the parameters of the VERSO air han dling units can be found in the AHU s printout technical specifications AN Do not switch on an ungrounded air handling unit AN Before switching on the unit all doors must be closed and locked the safety covers should be bolted AN Before switching on the unit its compartments have to be fixed fast among them There is pressure inside the air handling units this is why it is forbidden to open any doors before switching off the unit AN Before performing any inspection work inside the unit be sure the unit s electric power supply is disconnected and there are no rotating parts AN Before opening the doors switch off the unit and it s main switch and wait for 1 2 minutes till the fans will stop rotating Before switching on the air handling unit activate all the safety functions The air handling unit can be switched on or off only by the means specified in the control system AN Be careful when doing water air heater assemblage works heat exchan ger can get as hot as 130 C Warning If the air handling unit does not have the manufacturer s control system then the company that installed automation is responsible for the unit s functioning and safety reliability Risk areas with rotating parts Moving parts are the fan impeller drive pulleys of the rotary heat exchan ger if fitted and by pass shut off damper of the plate he
2. Min temperature con Min temperature Cull Off Off The minimum temperature control function forcibly reduces the supply and extract air flow set by the user when the heater capacity available in the unit is insufficient and or heat recovery does not ensure minimally possible temperature supply to the room The user can set a separate supply air temperature value so that when that value is not achieved the intensity of the ventilation unit starts to be reduced automatically The air flow may be reduced to the minimally possible ventilation intensity of 20 96 AN In ventilation intensity control this function has top priority over the func tions Ventilation compensation according to the external temperature and VAV 6 7 4 Override function Functions Override function Outdoor compensated Override OFF All time Min temperature control Off Override function OFF Override OVR control of the unit can be performed by the external contact see Picture 5 3 b or device timer switch thermostat etc The received signal from the outside activates the OVR function which ignores the cur rent operation modes of the unit and performs one of the selected actions listed below 40 UAB AMALVA we reserve the right to make changes without prior notice komfovent e Switches off the air handling unit e Switches over the unit to operation according to the mode Comfort1 e Switches over the unit to operat
3. CEND Ventilation in tensity F1 user selected air flow actual F2 minimum air flow 20 W1 winter compensation start point W2 winter compensation end point S1 summer compensation start point S2 summer compensation end point 100 F1 4 Outdoor The ventilation compensation temperature function does not operate when E summer night cooling function is active Outdoor compensated Air quality control i Winter compensation On Stop E ENS Outdoor compensated Start 5 C OFF Adjust Summer compensation j CITDC Ure U 1 Min temperature control 2 Start 25 C Off Off Stop 35 C The ventilation compensation function adjusts the air volume depending on the existing outdoor temperature It is possible to enter four temperature points with two of them defining winter conditions and the other two defining summer conditions When compensation start and end points for both winter and summer seasons are entered it is also possible to enter only one of them example only winter compensation in this case the start and the end points of summer compensation should be the same the current ventilation intensity will be decreased in proportion according to the outdoor temperature until it reaches the minimum possible ventilation level of 20 6 7 3 Minimum temperature control Functions Functions Min temperature con Air quality control ity control On Outdoor compensated Off
4. parameters value change 6 2 Start up of the unit The unit is started up shut down by pressing and holding down for 4 seconds the ono button After switching on unit will start operating after short delay about 45 seconds until air dampers open up and fans start running The operation of the unit is indicated on the display of the panel and by a light diode signal 6 3 Control panel indication Information is presented to the user on the LCD display of the panel as well as by means of luminous signals of the light diode UAB AMALVA we reserve the right to make changes without prior notice EJ Main window of the panel Time Days of week Date 2 Air handling unit picture bi o PAL g dale rimi 21 ec l O Symbol bar 6 3 Picture Light Diode Indication 1 Constant green light the unit is on 2 Flashing red and green light fault alarm however the unit operation is not shut down 3 Flashing red light only fault message the unit operation is shut down Explanation of the symbols Ba sien Holliday schedule operation Pal Air damper operation symbol Pn abet D tein Fan operation symbol i f Fault symbol 8 Energy recovery operation af Summer night cooling function ge symbol He Operation symbol dh AA Heating operation symbol Suh Humidifier operation symbol Soe nr t Cooling operation symbol 1 Air volume down symbol S Recirculation operation zl Air volume up symb
5. www rekuvent cz WESCO AG www wesco ch CH SUDCLIMATAIR SA www sudclimatair ch KAPAG Kalte Warme AG www kapag ch Rokaflex Zahn GmbH www rokaflex de Ventilair group www ventilairgroup de UNIQ COMFORT ApS www uniqcomfort dk AIR2TRUST www air2trust com EE BVT Partners www bvtpartners ee Fl MKM Trade Oy www komfovent fi FR AERIA www aeria france fr Supply Air Ltd www supplyair co uk Ds ELTA FANS www eltafans com IR Fantech Ventiliation Ltd www fantech ie Isloft ehf en isloft is IS Hitataekni ehf www hitataekni is Ventilair group www ventilairgroup com i Vortvent B V www vortvent nl Ventistal AS www ventistal no NO Thermo Control AS www thermocontrol no PL Ventia Sp z 0 0 www ventia pl SE Caverion Sverige AB www caverion se Sl Agregat doo www agregat si SK TZB produkt s r o www tzbprodukt sk TR Agon Mekanik www agonmekanik com 03 2015
6. 50 Note It is recommended to download the latest version of your web browser before use 5 If the connection is successful a window prompting to enter your user name and password appears User user Password eeee Note the user name is user The initial password is also user after logging in the user can later change the password to any other of his her choice see user interface settings AN In case you forget your new password you can restore the initial password user at any time through control panel settings 6 12 Additional control options 6 12 1 Combined water coil control For the air handling unit with the combined water coil Combi coil heater and cooler in one the control of the mixing valve actuator is provided both under the air heating and cooling modes The actuator is connected to the control terminals of the heating circuit and operates only under the heating mode by default However upon trans fer of the feedback signal confirming that there is cold water within the circulation system to the control terminals IN4 of the external control e g by connecting additional device thermostat switch etc the air cooling function will be activated and the mixing valve actuator TG1 will be controlled under the air cooling mode 46 UAB AMALVA we reserve the right to make changes without prior notice komfovent AN Combi coil control function must be ordered in advance
7. 6 12 2 Multi level control of direct evaporation cooler For air cooling in the air handling unit there is provided 3 control contacts connection is shown in Picture 5 3 b Depending on how much will be cooling steps and how it will be divided on steps automatically will be selected optimal control method If the capacity of all steps is the same then only three control steps are possible If cooling capacities of steps are close to ratio 1 2 4 the capacity of each of the following steps is double the previous then cooler control will be realized with seven cooling steps Example To the terminals DX1 is connected 1kW cooler to DX2 2kW and to terminals DX3 connected cooler with 4kW capacity Control will be in steps 1 1kW 2 2kW 3 1KW 2kW 4 4kW 5 1kKW 4kW 6 2KW FAKW 7 1KW 2kW AKW The function of step rotation is provided when capacities of coolers are the same The number of direct evaporation cooling units must be provided in ad vance 6 12 3 Reversal of direct evaporation coolers There is a reverse option of direct evaporation coolers i e when the cooler is switched to the heating mode In such case there must be only max 3 cooling control steps There are control terminals for connection of the cooler reversing signal Heating Pic 5 3 b The option of reversal of direct evaporation cooling units must be provided in advance 6 12 4 Inverter direct evaporation cooler control There is an invert
8. Inspect and clean the fan impellers to remove possible dirt deposits Check the impeller to make sure that it is not out of balance Clean or brush off the fan motor It can also be cleaned by carefully wiping it with a damp cloth that has been dipped in a solution of water and dishwashing detergent Clean the fan space if needed 2 2 Plate Heat Exchanger in VERSO P PCF Air Handling Units When operating the air handling unit equipped with the plate heat exchanger unit control automation should have function of protection from frost Condensate can accumulate in a plate heat exchanger therefore it is essential to install siphons on the con densate drainpipes Depending on the unit construction plate heat exchanger section may have 1 or 2 siphones It is important to maintain cleanliness of the plate heat exchanger to change filters installed in the air handling unit on time if the heat exchan ger gets dirty to perform heat exchanger periodical cleaning The temper ature effectiveness of a dirty heat exchanger can diminish considerably Hd UAB AMALVA we reserve the right to make changes without prior notice komfovent Plate heat exchanger Support frame Frame Bottom shields Place of sections connection Bypass damper with actuator Drop eliminator if needed Condensate bath with drainage ONANKRWN 4 8 1 7 Plate heat exchanger can be easily removed for inspection Removing p
9. air blast from exhaust air side If it is very dirty wash with tepid water which will not make corrosion of aluminium Check if position of return water temperature sensor is right Check if electric air heater is properly fixed wires connections are not damaged and heating elements are not bent They can be damaged or bent due to uneven heat or uneven and turbulent air direction Check if electric air heater is clear of unnecessary things and heating elements are not clogged because this can cause unpleasant smell or in the worst case dust can start burning Air flow through the air heater should be greater than 1 5 m s Heating elements can be cleaned with hoover or wet textile UAB AMALVA we reserve the right to make changes without prior notice EJ CEND 2 9 VERSO Series Air Handling Units Designed for the Outdoor Use VERSO air handling units which are designed for outdoor use can be additionally assembled with roofs with water drain tray to opposite viewing side Every section has separate roof which must only be connected together mm ID soo d SS Mu gt D l eC t fi Roof Roof plate Roof plate fixer Air intake hood Exhaust hood External grills Valve actuator cap Roof screw Front roof support 10 Middle roof support 11 Side roof support OO Joo E Gobh Installation process if the roof is delivered separately On the edge of the unit place and fi
10. at least twice per year before and after heating season or more Clogged filters unbalance ventilation system air han dling unit uses more power If air handling unit is working in small speed the filters must be checked on unit maximum speed Filters are one time used We do not recommend cleaning them Stop the air handling unit before changing filters AN Before changing air filters check whether the unit is switched off from the electric power supply 2 6 Water Air Heaters Air Coolers Direct Evaporation Air Coolers Mostly used with aluminum plates 2 5 3 or 4 mm fin pitch and copper pipes Upon additional order can be assembled with plugged connection for frost sensor 1 Water air heater 3 Direct evaporation air cooler 2 Water air cooler 4 Two step direct evaporation air cooler Water Air Heaters Air Coolers Direct Evaporation Air Coolers in VERSO S Units Possible VERSO S composition options with the air heater and air cooler and additional heater mounted outside the unit Ed UAB AMALVA we reserve the right to make changes without prior notice komfovent Water Air Heaters Air Coolers Direct Evaporation Air Coolers Mounted at the Bottom of VERSO P PCF VERSO R RHP Units The section of air heater air cooler or direct evaporation air cooler insulated in mineral wool is mounted on the outside of the unit Therefore air hand
11. console cover do not bend the springs inside the con sole otherwise the console buttons may fail to operate Prior to connect ing the control console supply voltage must be disconnected Control panel connection and other cable thicknesses are specified in the wiring diagram E UAB AMALVA we reserve the right to make changes without prior notice komfovent 6 OPERATION MANUAL 6 1 Unit control Air handling units control system ensures control of the physical processes that are taking place inside the air handling unit Control system consists of e main controller module Several extension modules e circuit breakers and main switch control console which may be installed in a place convenient for the user e air dampers actuators e temperature sensors The control panel Picture 6 1 is designed for the remote control of the air handling unit setting of the controller parameters and their indication Control panel LCD display allows monitoring various parameters and text mes sages The light diode of the panel indicates the operation mode and fault of the unit Air temperature ventilation intensity operation modes and other parameters are set by the touch sensitive buttons Control panel komfovent 6 1 Picture Touch sensitive buttons located on the panel mean on off and return to previous menu window E entry to parameters change menu set parameters confirmation M A navigation in the menu
12. is equipped with several heaters coolers of the same type or when the standard configuration of the control system does not provide the required demand AN Additional zone control is ordered in advance 6 13 Troubleshooting If the unit fails to operate e Make sure that the unit is connected to the power supply network e Check whether the main switch if designed is turned on e Check all fuses of the automatics If necessary replace blown out fuses with new ones having the same elec trical parameters the sizes of the fuses are indicated on the schematic electrical diagram e Check whether there is any failure message on the control panel If there is indication it needs to be elimi nated first In order to eliminate the failure follow the table e If nothing is indicated on the control panel check whether cable connecting control panel with the unit is not damaged 6 13 Table Alarms indicated on the control panel their possible causes and elimination methods After disconnecting the unit from power supply it is necessary to carry out periodic inspection of the unit i e to check the condition of the heat exchan ger the heater and fans If unit continuous operation without Service time breaks was 12 months then periodic in spection message appears Check pressure pipes air dampers air filters and make sure that the ventilation system is not blocked Too high resistance of the ventilation sys Low suppl
13. menu is designed to set the language date time measurement units and addresses and to reset the password and factory parameters Date 25 10 2012 10 22 Flow units m h 25 10 2012 Modbus ID default m h IP 192 168 0 50 default Login password reset 192 168 0 50 Factory settings reset UAB AMALVA we reserve the right to make changes without prior notice 45 CEND 6 11 Control of air handling units through a web browser You may not only monitor the operation of VERSO air handling units and the functionality of their individual components change settings and activate extra functions by means of control panel but also by your computer All you need is to connect the unit to the computer local area network or the Internet using a network cable Standard CAT 5 network cable How to connect the unit directly to your computer 1 Plug one end of the network cable into the controller port on the unit see Picture 5 3 a and the other end to the computer 2 Go to the properties of your network card and enter IP address e g 192 168 0 200 and subnet mask 255 255 0 0 3 Open the web browser on your computer and disable all proxy servers in the settings 4 In the address bar of your web browser enter the IP address associated with the air handling unit the default IP address is 192 168 0 50 You can change it at any time on the control panel or from web browser see con nection settings C5 Komfovent gt 1921680
14. of any changes occurring in the ventilation system e VAV variable air volume control mode The unit will supply and extract an air flow with regard to the ventila tion needs in different rooms In case of frequently changing ventilation demands this air volumes mainte nance mode signally reduces unit exploitation costs It is possible to use a simplified VAV control function single flow VAV control It means that the performance of this function requires only a single air flow pressure sensor which is installed in a variable air duct system e g in supply air This variable system is called the master ventilation system according to which control is performed while the other air flow in this case discharged air operates as the slave ventilation system and always follows the master one If the supply air requirement in the ventilation system which is assigned as the master system decreases the intensity of discharged air in the slave system is reduced correspondingly by the same percentage N If the variable air volume control function is mode is selected the initial calibration of the control mode must be performed see Paragraph 6 9 6 otherwise the unit will not operate if the VAV mode is selected e DCV direct controlled volume The air handling unit will operate similarly as in the CAV mode but air volumes will be maintained directly in accordance with the values of the B6 and B7 analog input signals of controller Af
15. t cse aa ERREDM EIL aE Ugo M ddl em OIL liss s E HEP EENEE 40 6 7 3 Minimum temperature COMMON E 40 6 7 4 Override function E 40 6 7 5 S mmer night eee MEE TTE ES 41 6 7 6 Operation on En 41 6 7 7 Recirculation ONO EEN 42 Loa sisse nilo PETS EE 42 6 8 Unit operation scheduling E 43 6 8 1 Operation ONOOM ANN exxccccce t6checscannssdssezccadiassddsdetsadecnniceeceasessdesseancaleuuec coiseeneusabesseatsetanencnceseaessnicoues 43 6 8 2 le le DENM 43 ee Een TR 43 REENEN 44 6 9 1 Actual IDEE EES 44 EELER EE 44 6 9 3 EENEG 44 6 9 4 EID ce EUIS Oo oL TS 44 6 9 5 Filter StatUS NE E Tc 45 6 9 6 Inspection Re due cop neaaatenacocaatennstaaceeannatiainenspuagnennecaddaanpoonmuauanspalesaamanacccantacnhddenantiactonses uaataaniance 45 RW Uus C 45 CTOS SENINGS ERR ERR ERE e c EE 45 6 11 Control of air handling units through a web DFOWSOE ooce iain natn tenerte cont eae daga cc Eekeeg 46 6 12 AOCINOMal Eege e aide E 46 6 12 1 Combined water coil control EE 46 6 12 2 Multi level control of direct evaporation cooler 47 6 12 3 Reversal of direct evaporation coolers cccccccccsssssssssseeeeeeeeecceeceeeeeeuesseseeeeeeceeeseeeeaauaaasseeeesees 47 6 12 4 Inverter direct evaporation cooler control cesiiicccctctscssecvorssssranzessdecaueiiesdncessseasncsisesssanenresscdnceeunsands 47 6 12 5 Additional zone de E 47 6 13 ee SOONG ET 48 This symbol indicates that this product is not to be disposed o
16. the heater introductory main switch 3 Unit electric power supply is connected The cable is put through the sealant 1 EI UAB AMALVA we reserve the right to make changes without prior notice komfovent 1 Sealant 2 Unit main switch 3 Heater main switch 4 Linkage connecting the heater and the unit Electric Air Heaters Protection from Overheating Three safety measures protect electric air heaters from overheating 1 70 C heater overheating protection When airflow velocity is too low it does not allow the heater elements to get hotter more than 200 C Protection system works automatically overheat is indicated on the remote control device 2 100 C heater overheating protection After disconnecting electric power supply from the heater protection is restored manually the reset switch on the heater is pressed overheating is indicated on the remote control device 3 60 C triac overheating protection Heater control is terminated protection resumed automatically message is displayed on the remote control device There is a possibility to resume overheat danger safety by pressing RE SET button only if before reasons for the heater overheating are clarified and eliminated Cleaning and Inspection of Electric Air Heaters Recommended to perform periodical inspection and cleaning of heater Check the plates of water air heater The air heater is cleaned with hoover from supply air side or with
17. 3 Shaft 7 Control module of electronic expansion valve and heat pump 4 Actuator with a reducer Cleaning and Inspection of Rotary Heat Exchanger Inspection of the rotary heat exchanger is performed once per year Free rotation of the rotary heat exchanger con tinuity of the rotating belt absence of damages of the rotor drums and the seal gasket are checked It is necessary to check the stretch of belt Free belt will slide and the efficiency of rotary heat exchanger will fall down To reach maximal efficiency rotor must turn at least 8 times per minute Polluted heat exchanger will decrease efficiency Clean heat exchanger with an air blast or wash with tepid water Check out water falling on the electric motor If the fabric drive belt is worn or substantially fouled it should be replaced Do not lubricate it Contact service personal VERSO RHP air handling units with integrated heat pump e Air handling unit with integrated heat pump operation range is from 15 to 35 C At lower temperatures from 15 to 30 degrees heat pump system is switched off The unit performs air ventilation with regeneration func tion and air is heated with additional heater if provided e Carefully high pressure inside up to 42 bar Emergency pressure on which the heat pump is stopped low pressure 1 5 bar high pressure 42 bar e For stable operation of the device set the device controlling mode under the outdoor temperature duct or room e Insi
18. Check the compressor motor and replace it if nec Compressor motor failure essary Check the operation of the compressor drive and Compressor drive failure Si replace it if necessary Supply fan drive failure Re reum Signal Has Desh received Imoni Ie Check the supply fan drive and its messages supply fan drive Supply fan drive overload The supply fan drive is overloaded aa PONO Ot Me SUP eege Supply fan motor failure The supply fan is broken Check the supply fan and replace it if necessary Check the condition of the supply fan and make sure Supply fan motor overload The supply fan is overloaded that the resistance of the ventilation system is not exceeded Exhaust fan drive failure A taul signal has been received Iont EX Check the exhaust fan drive and its messages haust fan drive Exhaust fan drive overload The exhaust fan drive is overloaded neo Ine COndHHon HEES Tant drivecana its cooling Exhaust fan motor failure The exhaust fan is broken Check ine exhaust fan and replace necessary Check the condition of the exhaust fan and make Exhaust fan motor overload The exhaust fan is overloaded sure that the resistance of the ventilation system is not exceeded Rotor drive failure raul Signal EE Man iie Check the rotor drive and its messages rotor drive Rotor drive overload The rotor drive is overloaded Geen the condition of the rotor drive and its cool Rotor motor failure motor failure The rotor motor is bro
19. SOA outdoor intake SA supply air RCA recirculated air Using Verso RHP devices with recirculation section the supply air temperature sometimes can t be supported For this it is recommended to choose an additional heater cooler to ensure the supply air temperature Otherwise the supply air temperature will not reach set point Heat pump defrosts control HP operation at low outdoor air temperatures and high indoor humidity potential evaporator freezing in exhaust air flow At the time on the heat exchanger forms white frost snow ice As a result e Increases air pressure drop through the heat exchanger e Decreases heat exchanger efficiency To manage the freezing and defrosting process the controller C5 sets the defrost function This function is activated when The device operates in HP mode e Air temperature after the evaporator is negative Additional to the standard controller C5 elements this function has extra elements Pressure transducer for air flow pressure drop through the evaporation heat exchanger e Air temperature sensor after the evaporator e Refrigerant by pass line and valve The pressure transducer measures the pressure drop through evaporation heat exchanger The initial differential pressure values clean heat exchanger controller will be set automatically These values depends on the ventila tion rate and evaporator construction When differential pressure reaches a critical level tw
20. Units Designed for the Outdoor Use ccccccceseeeeeeeeeeeeeeeeeeeeeeseaaeeeeeees 26 3 VERSO AIR HANDLING UNITS TRANSGPORTATION nnne nnn nnne rrr nnns 27 4 VERSO AIR HANDLING UNITS INSTALLATION esee nennen nennen nnne rrr nnns 28 4 1 VERSO Air Handling Units Maintenance Gpace eene 28 4 2 Setting and Installing VERSO Air Handling Units i rera aa SEENEN 29 4 3 Sre ig r eiredig i Wolle NT TT eT 30 4 4 VERSO Air Handling Units Sloping Drain RE 30 4 5 Check up before turning on VERSO Air Handling Unit ENEE 31 5 ELECTRICAL INSTALLATION MANUALE 32 5 1 Air Handling Units Sections Connection EE 32 5 2 Electric Power Supply Rare tt ntr ab DDR RD PECKG aU ERN UHR Rn pd rrene 32 5 3 External Elements Connection E 32 5 4 Temperature Sensors Installation E 34 5 5 Requirements for the installation of the control panel ENNEN 34 5 6 Control panel connection ense Ate EE 34 6 OPERATION WERT E 35 ig MPR OMI OM RE UU UU c 35 6 2 Start p of the EE 35 6 3 Control panel indication ME 35 6 4 Parameters E 36 6 5 Unit Programmable Sel EE 37 6 6 Settings of unit modes MEN ET Tm 38 6 6 1 Operation MOdES PELO 38 Do FOW CODO Bereet 38 6 6 3 TEMPeSralure COMM Ol MOGES Seege EENEG 39 E F nctions Of Ie TT M U U O 39 E NI uo Flu geenige PE RN UU um 39 UAB AMALVA we reserve the right to make changes without prior notice E CEND 6 7 2 Outdoor compensated VEMUI ALON ss ap en i22 u0505530RM SanE cta
21. ake changes without prior notice EJ CEND 5 4 Temperature Sensors Installation The supply air temperature sensor B1 5 4 a Picture is mounted in the air duct in a projected place for it after electric heater or cooler section if provided The minimal distance from the air vent of the unit up to the sensor should be not less than a diagonal of rectangular connection The water temperature sensor B5 5 4 b Picture is mounted on the water pipe by screwing it into the provided hole The sensor must be thermo insulated Supply air temperature sensor B1 Water temperature sensor B5 5 4 a Picture 5 4 b Picture 5 5 Requirements for the installation of the control panel 1 The control console should be installed in a room where the following conditions are ensured 1 1 Ambient temperature 0 C 40 C 1 2 Relative humidity range 20 96 80 96 1 3 Protection against vertical dripping of water IP X2 2 Installation height at least 0 6m from the floor 3 Control panel connection designed through the hole in its back side 4 The panel is fixed by drilling two holes on the fixation surface 5 6 Control panel connection The control panel is connected to the controller box see Picture 5 3 The length of the cable for connecting the panel with the unit may not exceed 150 m The cable type is indicated on the electrical diagram of the unit View of the control console 5 6 Picture When closing the
22. at exchanger if fitted The lockable inspection doors serve as protection from contact with the fans and the heat exchanger If the fan outlets aren t connected to any duct they must be fitted with a protective screen wire mesh Attention After initial unit start up also every time after replacing of the filters it s necessary to perform clean filters calibration procedure see 6 9 5 Chap ter UAB AMALVA we reserve the right to make changes without prior notice 5 CEND 1 1 VERSO Air Handling Units marking VERSO Air Handling Units marking warning Note Important information in the instruction manual Place for siphon VERSO Air Handling Units marking informative Air filter Rotary heat exchanger Plate heat exchanger Water air heater Electrical air heater Caution Rotating parts Note Before performing any inspection work inside the unit be sure the unit s electric power supply is disconnected El i fa i aJ Noise attenuator B O UAB AMALVA we reserve the right to make changes without prior notice komfovent 1 2 VERSO S Air Supply Units 1 Air damper closing 7 Base frame 2 Supply air filters 8 Sections connection 3 Fan with electric motor 9 Sealing gasket 4 Air heater water or electric 10 Connection bolt 5 Air cooler water or direct evaporation 11 Extension module 6 Frequency inverter 12 Main module 1 Ai
23. atus Operation counters Air heater operation Supply fan operation Exhaust fan operation Alarm history 20 12 2012 10 24 2B Low supply air flow 19 12 2012 12 24 Electric heater off 3A Operation counters Air heater operation Stil Reset selected Reset all Exhaust fan operation 495h 5624h 500h 495h This menu shows the operation time or energy consumption of the heater and fans 6 9 4 Efficiency status Alarms Status Actual alarms Alarm history Operation counters Efficiency status Filters status VAV status Efficiency status Heat exchanger therm 80 Heat exchanger recov 500W Thermal energy saving 80 The menu is designed to monitor the efficiency of the heat exchanger and fans UAB AMALVA we reserve the right to make changes without prior notice komfovent 6 9 5 Filter status Alarms Status Actual alarms Alarm history Filters status Clean filters calibratio Filters status Clean filters calibratio Operation counters Efficiency status Filters status Outdoor air filter Extract air filter It is possible to monitor the pollution level of filters and to calibrate clean filters AN It is recommended to perform the initial calibration of filters after the first start of the unit When filters are replaced during operation it is recom mended to perform the clean filter calibration 6 9 6 Inspection lightning Alarms Status Actua
24. ction mounted on the pressure side Since the fans in most air handling units are not last in the chain of functions and generate over atmospheric pressure inside the cooling section In such case the consisted condensate can be easily removed from AHU and there will be no strict requirements for siphon s installation A drainage siphon is enough with a minimum rake RECOMMENDATION The drainage siphon must be installed in connection with not less size pipe diameter 4 5 Check up before turning on VERSO Air Handling Unit e Before turning on air handling unit clean installment dust and waste Check whether cable and wires are connected firmly e Take off the unit all supporting shields and covers and other things left after installment of the unit e Before turning on the unit it is necessary to close all the doors and bolt all protection shields e Check whether air dampers open and close properly e Check whether heat exchangers are connected tightly e The air handling unit can be turned on only according to projected control system order if the air handling unit has the manufacturer s automation see control system instruction e lf the air handling does not have manufacturer s control system the company installing control system is responsible for the unit s functioning and safety reliability e Before operating the unit air handling system tune up works must be performed VERSO Air Handling Units Warranty Conditions Warranty is no
25. de the unit is refrigerant R410A friendly to environment e Before commissioning make sure that the air handling unit is filled with refrigerant This can be done by look ing through the moisture indicator The unit is equipped with moisture indicator At high moisture content of the system it must be cleaned changed the filter and re filled with refrigerant The unit washing cleaning maintenance is carried out as well as any other type of device described in this manual e Device information sticker of the used refrigerants is applied near to the high and low pressure filling valve Sticker is seen when doors are opened n heating mode supply air temperature can range due to frozen evaporator Therefore this unit is not rec ommended for use as a basic unit for heating at low outdoor air temperatures use with a secondary heater m UAB AMALVA we reserve the right to make changes without prior notice komfovent VERSO RHP functional schemes One circuit system A 5 14 1 T S 10 t Ed 4 7 9 8 kir m 6 1 SC M 7 15 13 1 Compressor 9 Solenoid valve 2 4 way valve 10 LP tranducer 3 Check valve 11 HP tranducer 4 Liquid receiver 12 Temperature tranducer 5 Rotalock valve 13 Supply air coil 6 Filter drier 14 Exhaust air coil 7 Moisture indicator 15 LP service port 8 Electronic expansion valve 16 HP service port VERSO RHP 10 20 30 VERSO RHP 40 50 UAB AMALVA we reserve the rig
26. e if necessary not work properly Liquid receiver rotalock Check and open valve is closed Increase supply air flow Increase extracted air flow Frosted evaporator See item D1 S Check pressure in heat pump system with manometers If pressure reading does not match check cable connection or replace transmit ter if necessary Evaporator obstructed Clean evaporator surface Expansion valve does l Low pressure on not work properly Check and replace if necessary compressor R emgarank iier Check and replace if necessary clogged Moisture in heat pump hydraulic circuit Replace filter and dry out system Check circuit with leak detector Repair evacuate and refill circuit Low level of refrigerant with refrigerant Refrigerant filter clogged Low pressure trans ducer failure Replace filter Check solenoid valve coil Check solenoid valve and replace if necessary Defrost solenoid valve does not open Check air pressure measure ment tubes Replace air pres sure transducer if necessary EE ay heating Check and replace if necessary element failure Evaporator is icing Air pressure transducer failure Heat pump will start operating Too low outdoor tem when the outside air temperature Heat pump does not perature will be above 15 C approxi mately Low supply or and Set the air flow more than 40 exhaust air volume percent of the nominal air flow HU UAB AMALVA we reserve the rig
27. echnical data sheet The cable types are indicated in Table 5 2 5 2 Table Electric power supply cable types 5 x 6 0 mm Cu 5 100m Cu 5 160 mi Cu 5 250m Cu Before connecting unit to the electrical power supply it is necessary to check whether earthing has been installed properly 5 3 External Elements Connection The air handling unit is designed with external connection terminals which are located on the controller box in the middle heat exchanger section All external control elements are connected to the terminals 32 UAB AMALVA we reserve the right to make changes without prior notice komfovent Controller with connection terminals ege e Kmec E a bd t EXCEL E 2 e CU 5 3 a Picture 1 Control panel connection 2 Ethernet computer network or internet connection 3 Fuse 1A External control elements connection MODBUS RS485 connection External control External stop Fire system OVR control Common Return water temperature sensor Supply air temperature sensor mixing valve actuator mixing valve actuator Cooling water pump 230V AC 1A Heating water pump 230V AC 1A External control N Is zz Indication Cooling control a6 5 E t E o gt E He m e gz O Humidity sensor Exhaust air pressure sensor DX2 signal DX1 signal Common Air quality sensor DX3 signal 230V AC 0 5A LU GA CO LI X 5 3 b Picture UAB AMALVA we reserve the right to m
28. ed with a gasket 12x6 supplied to the device Cleaning and Inspection of Coil Heat Exchanger Always clean against the regular direction of airflow Make sure that the coils are purged of air If a droplet elimina tor is fitted remove it and fush it clean with water Also check that the condensate drain is not clogged UAB AMALVA we reserve the right to make changes without prior notice E CEND 2 7 Electric Air Heaters in VERSO S Series Air Handling Units Three interconnected unit parts are bolted together When heating capacity exceeds 45 kW additional electric heater section may be used also up to 45 kW In such a case additional heater is con nected to the supply air vent after the ventilation section AN Each electric heater section has separate main switch to which electric power supply is connected 1 Electric heater 2 Heater main switch 3 Unit main switch 2 8 Electric Air Heaters in VERSO P PCF and VERSO R RHP Series Air Handling Units Electric heater is mounted to the unit supply air vent and screwed to a side panel with pins ite Hd i ij 4 N D N Lin 1 Pin by which electric heater is mounted to the unit supply air vent 2 Frame 3 Gasket Electric Air Heater Connection to VERSO P PCF and VERSO R RHP Series Air Handling Units a After opening doors of the air handling unit linkage 4 connecting the heater and the unit is connected b Unit electric power supply is connected to
29. enu window returns you to the previous menu or main window Parameters menu of the panel 16 21 Mon 25 09 2012 16 21 Mon 25 09 2012 Alarms Status Settings 6 5 Picture Note If touch buttons are inactive for 1 minute the main panel window appears automatically UAB AMALVA we reserve the right to make changes without prior notice CEND 6 6 Settings of unit modes RR 6 6 1 Operation modes Modes Operation mode tion mod Comfort1 Comfort1 Flow control In Comfort2 CAV lt FH Economy1 Temperature control Economy2 Supply Comfort1 Opepaldan Supply flow Comfort1 11000m h Activate Extract flow Adjust 10000m h OTIOMY Temperature 22 0 C Six operation modes of the unit are possible 1 There is two Comfort and two Economy modes for each of them the user can set air flow and temperature 2 Program in this mode the unit operates according to the preset schedule 3 The Special mode allows the user not only to set air flow and temperature but also to select blocking or using cooling recirculation and humidification functions 6 6 2 Flow control modes Operation mode Comfort1 Operation mode Comfort1 Flow control Temperature control Supply The following supply and extract air flow control modes are designed e CAV constant air volume control mode The unit will supply and extract a constant air flow which is preset by the user irrespective
30. equired recirculation The recirculation schedule is set with the scheduling menu e External contact If a device switch relay timer etc is connected to the external control terminals NA see Picture 5 3 b recirculation will be activated when the contacts are short circuited and will operate at the recirculated fresh air ratio set by the user 6 7 8 Humidity control Functions Functions Humidity control Operation on demand Operation on demand Setpoint1 55 RH OFF on Mode Comfort1 Recirculation control Setpoint2 30 RH OFF Mode2 Economy2 Humidity control i ERWISEN OFF Off Humidity control function is designed for maintenance of air humidity determined by the user For proper operation of the function one or two additional humidity sensors shall be connected depending on where humidity will be maintained There are two modes for maintenance of humidity e Supply air The determined humidity of supply air is maintained using the supply air duct humidity sensor B9 Default setting 42 UAB AMALVA we reserve the right to make changes without prior notice komfovent e Room air The determined humidity of indoor air is maintained using the room air or exhaust air duct humidity sensor B8 The supply air humidity limit is set using the duct humidity sensor or hydrostat B9 One of the below methods can be chosen for maintenance of the determined humidity e Humidification of air There is a control si
31. er trap installation for a unit section mounted on the suction side Since the fans in most air handling units are last in the chain of functions and generate sub atmospheric pressure inside the unit it is very important to correctly install the water trap Because of that reason condensate can be hardly eliminated from the air handling unit and the technical premise may get covered with condensate Height H must be at least equivalent in mm to half of the negative pressure inside the unit in mm water gauge Height H must be at least equivalent in mm to the negative pressure inside the unit in mm water gauge Siphon with the spherical valve Siphon without the valve Condensate Condensate 7 EE EEN BSS ZI BN Liewes 4 D CETTE 140 310 Ey UAB AMALVA we reserve the right to make changes without prior notice komfovent Precaution The drainage siphon should be mounted on the outlet fitting pipe of every drip tray for complete condensate drainage from the air han dling unit and prevention of penetration of offensive odours from an efflu ent into the ventilation system In case of the outdoor operation of the air handling unit the siphon and the bleeders should be heated with an electric thermal cable if ambient air temperature t m lt 0 C The siphon and the bleeders should be heat insulated with an insulating material Water trap installation for a unit se
32. er unit control which power can be managed smoothly For the inverter unit power control there is a modulated signal TG2 as well as signals cooler start DX1 cooling demand DX2 heating demand DX3 see Pic 5 3 b There are three different control methods 1 Universal control suitable for most cooler units 2 Control adapted to Panasonic cooler units 3 Control adapted to Daikin cooler units AN The inverter cooling unit controls should be provided in advance 6 12 5 Additional zone control By connecting the additional extension module to the air handling unit the supply air temperature is maintained in a separate ventilated area room i e the module has the option to independently control additional heaters and coolers In this case the user can have a separate temperature setting for the particular area Functions Functions 1st additional zone Humidity control control Setpoint Off on 25 C 1st additional zone control Off E Off Adjust d orid 2nd additional zone control Off There is a possibility to control up to 2 additional areas two additional extension modules N Detailed information is presented in the additional zone installation manual UAB AMALVA we reserve the right to make changes without prior notice CEND The purpose of additional zone heater cooler could be changed from independent to additional control In such case this control mode can be used when the air handling unit
33. eration mode and a day of the week can be assigned to each program 6 8 2 Holidays Scheduling 01 program 01 program Operation program Standby Standby Holidays Recirculation schedule The holiday schedule specifies the time period during which the air handling unit will operate according to the specified mode Up to 10 holiday schedules can be set 6 8 3 Recirculation schedule Scheduling 01 schedule Operation program Level Weekdays Holidays Start time Stop time Recirculation schedule The recirculation level in terms of percentage points and operation time are set Up to 5 recirculation schedules can be set This menu item is available when recirculation control according to the weekly schedule is activated UAB AMALVA we reserve the right to make changes without prior notice 43 CEND 6 9 Alarms and status a 6 9 1 Actual alarms Alarms Status Actual alarms Alarms history Operation counters Efficiency status Filter status VAV status 127B Service mode 3B VAV calibration fail Delete This menu shows messages on existing faults Messages are deleted when Delete is selected 6 9 2 Alarm history Alarms Status Actual alarms Alarm history Operation counters Efficiency status Filters status VAV status Former messages are shown here 6 9 3 Operation counters Alarms Status Actual alarms Alarm history Operation counters Efficiency status Filters status VAV st
34. ers installed in the air handling unit on time If the air heater or cooler gets dirty to perform periodical cleaning Glycol is used in the air handling units with coil heat exchanger Never pour glycol down a drain collect it in a receptacle and leave it at a recycling centre or the like Glycol is highly dangerous to consume and can cause fatal poisoning or damage the kidneys Contact a doctor Avoid breathing glycol vapour in confined spaces If you get glycol in your eyes fush them thoroughly with water for about 5 minutes p D 1 Electric Water heater Air cooler or direct evaporation air cooler mounting pin 2 Frame 3 Gasket E UAB AMALVA we reserve the right to make changes without prior notice komfovent VERSO sections connection using clamping elements lo jo Yo o orn View A The sections clamping elements are supplied to the device They are used in the front and back of the unit in the upper part of the section Sections are tightened with screws in the frame holes image A Tightening the two equal in height single flow sections clamping elements are located on the top of section and if allows unit con struction on the sides of the section image B First the individual elements are screwed on the same height on the two different sections and then using the clamping screw and nut sections are joined view C Prior to joining all the sections must be seal
35. f with your household waste according to the WEEE Directive 2002 96 EC and your national law This product should be handed over to a designated collection point or to an authorised collection site for recycling waste electrical and electronic equipment EEE Improper handling of this type of waste could have a possible negative impact on the environment and human health due to potentially hazardous substances that are generally associated with EEE At the same time your co operation in the correct disposal of this product will contribute to the effective usage of natural resources For more information about where you can drop off your waste equipment for recycling please contact your local EE city office waste authority approved WEEE scheme or your household waste disposal service EJ UAB AMALVA we reserve the right to make changes without prior notice komfovent 1 VERSO AIR HANDLING UNITS UAB Amalva thanks you for choosing VERSO air hadling unit Because a lot of attention is given towards unit quality we will be thankful for your help expressing your comments and responses or suggestions regarding technical and running qualities of the unit To avoid misunderstandings before installing the unit carefully read this instruction Keep the instruction warranty and technical information data you may need them during exploitation AN Inspect the air handling unit carefully to make sure it was not damaged dur ing transportation
36. g day hours Summer night cooling function can start at night from 00 00 h to 06 00 h a m at any time even when the air handling unit is not working and is in standby mode User can set indoor temperature at which this function starts and stops When this function is active the current ventilation level is switched to the maximum ventilation intensity 100 and ventilation is performed only by means of fans i e at that time neither the air cooling nor the energy recovery functions operate 20 C Summer night cooling function has an operating priority over the following functions outdoor compensated ventilation the air quality function and the recirculation function 6 7 6 Operation on demand Functions Functions Operation on demand Override function de OFF 0n 1020ppm Summer night cooling Q 31 Off OFF Adjust Operation on demand Operation on demand Off Off The air handling unit start up function is designed to start the unit which currently off when one of the selected parameters has exceeded the critical limit The function provided for the start up of the unit according to e Room CO sensor Room air quality sensor VOCq e Room air pollution sensor VOCp e Room relative humidity sensor e Room temperature sensor UAB AMALVA we reserve the right to make changes without prior notice 41 Operation on demand start up shut down is performed by the same sensor which is used in
37. ght to make changes without prior notice cafftalva UAB AMALVA VILNIUS Ozo g 10 LT 08200 Tel 370 5 2779 701 Mob tel 8 685 44658 el p info amalva lt KAUNAS Taikos pr 149 LT 52119 Tel 8 37 473 153 373 587 Mob tel 8 685 63962 el p kaunas amalva lt KLAIP DA Dubysos g 25 LT 91181 Mob tel 8 685 93706 8 685 93707 el p klaipeda amalva lt SIAULIAI Metalistu g 6H LT 78107 Tel 8 41 500090 mob tel 8 699 48787 el p siauliai amalva lt PANEV YS Ber g 44 LT 36144 Mob tel 8 640 55988 el p panevezys amalva lt EXPORT amp SALES DEPARTMENT Ph 370 5 205 1579 231 6574 Fax 370 5 230 0588 export komfovent com GARANTINIO APTARNAVIMO SK SERVICE AND SUPPORT Tel Ph 370 5 200 8000 mob tel mob ph 370 652 03180 service amalva lt www komfovent It OOO AMATJIBA P Poccua MockBa KpoHlUTagTcKuN OynbBap Dom 355 ocbuc Ne 179 Ten cpakc 7 495 640 6065 info amalva ru www komfovent ru NOOO KomcboBeHT Pecny6nuka Benapycb 220125 r Munck yn Ypyuckas 21 423 Ten 375 17 266 5297 266 6327 minsk komfovent by www komfovent by Komfovent AB Sverige Ogardesvagen 12B 433 30 Partille Phone 46 314 87752 info_se komfovent com www komfovent se PARTNERS AT J PICHLER Gesellschaft m b H www pichlerluft at BE Ventilair group www ventilairgroup com CZ REKUVENT s r o
38. gnal of 0 10 V directly reflecting the capacity of the humidifier from 0 to 100 96 If humidification is required the control is transferred through the output TG3 of the controller e Dehumidification of air There is a control signal of 0 10 V directly reflecting the capacity of the dehumidi fier from O to 100 96 If dehumidification is required the control is transferred through the output TG3 of the controller e Dehumidification of air cooling heating Dehumidification is performed using the coolers and heaters available in the air handling unit If there are several coolers and heaters then it shall be pre determined which of them will be used in the dehumidification process e Humidification and dehumidification of air For humidification of air the control signal of 0 10 V is used through the output TG3 of the controller and the dehumidification of air is performed using the coolers and heaters available in the unit If the maintenance of the room air humidity is provided for then the humid ity function will prevail over the air quality and recirculation functions i e when humidification or dehumidification is required these functions will be blocked 6 8 Unit operation scheduling 6 8 1 Operation program Scheduling Operation program Mode Economy1 Weekdays 234567 Hollidays Start time 22 00 Recirculation schedule Stop time 24 00 For air handling unit up to 20 operation programs can be set An op
39. h aluminium or galvanized steel blades are used in the units Air damper is fixed to the air handling unit with screws 12 5 1 Aluminum or galvanized steel blades 2 Rubber sealing 3 Plate shaft for the actuator 4 Shaft for bypass damper closing opening 5 Fastening bend 6 Screw Installing Electrical Drives on the Air Dampers Electrical Dampers Safety The electrical actuators control air dampers of the air handling unit If air handling unit is installed outside then all the drives outside have to be protected from moisture and dust nS n ZE OO MLA lee L BRENNEN NEEN EA MITET T ITT 1 Electric drive fixed to the air handling unit installed in a building 2 Electric drive fixed under the cap to the air handling unit installed outdoors 2 5 Air Filters and Filter Change Procedure Synthetic or fiberglass bag filters are used When operating the air handling unit the unclean filters should be changed on time Pressure level drop at which it is recommended to change filters and the measurements are in the technical data pages UAB AMALVA we reserve the right to make changes without prior notice 19 N M E SSC N 1 Upper filter holder 2 Lower filter holder 3 Changeable filter Air filter clogging check The filters should be changed when the filter alarm has been activated We recommend to change filters
40. he bottom of the unit IS 3 Air handling unit inspection doors on the right supplied airflow into room is on the top of the unit IS 4 Air handling unit inspection doors on the left supplied airflow into room is on the top of the unit UAB AMALVA we reserve the right to make changes without prior notice E CEND 2 VERSO AIR HANDLING UNITS CONSTRUCTION 2 1 Fans VERSO air handling units are equipped with radial fans with direct drive AN Motors of the fans with backward curved blades must be controlled by frequency converters Frequency set by the frequency inverter cannot exceed frequency data specified in the print out Note fan type is specified in the print out Measuring device for determining air volume The differential pressure compares the static pressure in front of the inlet ring with the static pressure in the inlet ring of the narrowest point The differential pressure between the static pressures is related to the air vol ume via the energy conservation rate as follows y amp An where k takes into account the specific ring characteristics Example If differential pressure of 700 Pa is measured for size 630 the air flow rate can be calculated V k An 381 700 210080 m h Cleaning and Inspection of Fans and Fan Space Polluted fans decrease efficiency AN Before performing any inspection work check whether the unit is switched off from the electric power supply
41. ht to make changes without prior notice komfovent Possible solution Possible solution No Message Probable cause in heating mode in cooling mode Low air flow Increase supply and or extracted air flow Heat pump works regulary but with an 4 way valve failure Check 4 way valve coil Check 4 way valve and replace if necessary insufficient capacity Defrost solenoid valve Check solenoid valve coil Check solenoid valve and replace if is open necessary Fxpansion Valve dogs Check and replace if necessary not work properly Frost in compressor Refrigerant filter l ution Ie clogged Check and replace if necessary Evaporator obstructed Clean evaporator surface f Components vibrate Fasten properly Abnormal noises in heat pump system The compressor is Replace the compressor noisy C the cause must be eliminated only by qualified person Air handling unit with built in heat pump operation description Heat pump built in air handling unit are controlled by air set point temperature Heating or cooling function are activated automatically by set point and demand Temperature control order 1 Rotary heat exchanger 2 Heat pump 3 Additional cooler or heater if installed If the unit operation point are close to critical conditions the required air temperature may not be reached Unit automatically activate safe operation conditions maintenance function In the heating mode evaporator defrosting cyc
42. ht to make changes without prior notice 13 CEND Two circuit system s s M MM oo JO Om P 1 2 3 Liquid receiver Rotalock valve Filter drier Moisture indicator Electronic expansion valve Thermostatic expansion valve 10 LP tranducer HP tranducer 13 LP cut off HP cut off 16 Exhaust air coil LP service port HP service port Inverter for compressor Compressor 4 way valve Check valve Solenoid valve Temperature tranducer Supply air coil 14 UAB AMALVA we reserve the right to make changes without prior notice komfovent VERSO RHp unit data 9 e we 9 Informative sticker inside the unit Dr and TII Ee EL a komfovent Air handling unit model Vedinimo jrenginio modelis Verso 30RHp Maximum operating pressure Maksimalus darbinis sl gis P max bar iis Refrigerant Saltnesis R410A Number of separate circuits Atskiry kontury skaicius 1 Quantity of refrigerant in first circuit D kg 56 Saltnesio kiekis pirmajame kont re IR410A Quantity of refrigerant in second circuit D ka 8 Saltnesio kiekis antrajame kont re araroa S9 Total quantity of refrigerant in unit Bendras altne io kiekis sistemoje os Kg K Hermetically sealed system Hermetiska sistema Contains fluorinated greenhouse gases covered by Kyoto Protocol S
43. ion according to the mode Comfort2 e Switches over the unit to operation according to the mode Economy1 e Switches over the unit to operation according to the mode Economy2 e Switches over the unit to operation according to the mode Special e Switches over the unit to operation according to the weekly schedule The OVR function provides for three operation modes selectable depending on the needs of the user 1 The mode When on the function will respond to the external control contact only when the air handling unit is on 2 The mode When off the function will respond to the external control contact only when the air handling unit is off 3 The mode Always the function will respond to the external control contact irrespective of the operating condition of the unit The OVR function has the top priority and therefore ignores all previous modes The function remains active as long as the external control contact is in the closed position 6 7 5 Summer night cooling Summer night cooling Min temperature control i emnera e con Start when indoor Off 0n 25 C Override function EN Stop when indoor off Summer night cooling Sumi abs cooling OFF OFF Summer night cooling function is intended for energy saving during the summer season by utilizing the outside chill of night hours it is possible to cool down heated rooms i e to remove excessive heat that accumulated in the room durin
44. ion that was assigned to it According to the unit weight which is indicated in technical specifications dimensions and other important parameters special construction calculations should be done If the unit is ordered with adjustable feet unit can be leveled with its help Leveling up to 50 mm AN If the surface on which the unit is installed is not even the air handling unit can distort because of that doors may not close correctly there may be gaps between jointed sections It is advisable to put a gum seal between the air handling unit and the base AN It is forbidden to install the air handling units one on the other AN Wiring connection see electrical installation manual 1 Fastening place for the key to the doors during air handling unit transportation 2 The key Noise Caused by VERSO Air Handling Units Air handling unit causes some acoustic noise more specific data is available in the technical unit specification and this has to be taken into consideration when installing air handling unit Comfort in the facilities depends not only on the air handling unit but also on the quality of the ventilation system installment quality and other factors noise reduction means and etc Recommended e To install air handling unit not closer than 500 mm from a wall if needed use additional noise reducing ma terials for example layers of mineral wool e Make sure that vibration from the air ducts does not trans
45. ir quality control Setpoint1 1000ppm Mode1 Comfort1 Outdoor compensated Off Min temperature con Off Setpoint2 880ppm Adjust Mode2 Comfort2 FTI o Air quality control is designed according to e CO sensor 0 2000 ppm e Air quality sensor VOCq 0 100 95 e Air pollution sensor VOCp 0 100 96 e Relative humidity sensor 0 100 95 e Temperature sensor 0 50 C Depending on the type of the selected sensor the value of the air quality function to be maintained is set and the air handling unit intensity will be adjusted according to that value Ventilation intensity will be increased au tomatically in the case of deviation from the set value and decreased again when it is approached For example if the unit is designed with the CO maintenance function and is equipped with a CO sensor after setting value 800 ppm this set CO level will be maintained by adjusting ventilation intensity i e ventilation intensity will be increased if the CO level grows and will be decreased when it returns to the previous condition Two air quality value settings for separate unit operation modes are possible The function of air quality operates only if no other below function is active at the same time summer night cooling Min temperature control Recirculation control Outdoor compensated ventilation 1 Factory setting UAB AMALVA we reserve the right to make changes without prior notice EJ
46. ken rotor motor is broken Tem the rotor motor and Check the rotor motor and replace it if necessary it f necessary UAB AMALVA we reserve the right to make changes without prior notice 49 eg the condition of the rotor motor and make Rotor motor overload The rotor motor is overloaded sure that the rotor is not blocked No communication with the internal com ponents of the air handling unit controller Communication error extension modules frequency converters fans etc or one several of them are broken Controller failure Main controller module fault Replace the main controller The emergency protection of the electrical heater against overheating can be reset with the RESET button only if the cause of the overheating of the heater has been clarified and eliminated Check internal connections and functioning of separate components AN If the unit is shut down and a red light diode is shining and a failure text message is shown on the control panel the fault must be eliminated AN Before performing any jobs inside the unit make sure that the unit is stopped and disconnected from the electrical power supply After failure has been eliminated and power supply connected the error messages should be deleted How ever if the failure has not been eliminated unit either starts operating and after some time it stops again or it does not operate and failure message is indicated Ed UAB AMALVA we reserve the ri
47. komfovent e e e e komfovent j 9 e gt ae BE A 2sHM A 3 REI VERSO S R P RHP PCF CEN Installation and Maintenance Service Manual CEN komfovent Content 1 VERSO AIR HANDLING UNITS E 5 1 1 VERSO Air Handling Units TOHSEKIDIO ME 6 12 VERSO S Aif S pply KEEN 7 1 3 VERSO P PCF Air Handling Units Equipped with Plate Heat Evchanger nnn 7 1 4 VERSO R RHP Air Handling Units Equipped with Rotary Heat Exchanger essssssannnnnnnnnnnnnrnnnennn 8 1 5 Biet Description OF the UNM E 8 1 6 VERSO Air Handling Units Composing Options sess 9 2 VERSO AIR HANDLING UNITS CONSTRUCTION 1 1 eere nnne nennen nennen nnn rrr nnns 10 UNE RRRRRUTT 10 2 2 Plate Heat Exchanger in VERSO P PCF Air Handling Untts nnnnnnnnnnnenenenaannnnnnnnnnnnernnnnnnnnrnnnnnnrrnnn n 10 2 3 Rotary Heat Exchanger in VERSO R RHP Air Handling Units nnnnnnnaaananaannnnnnnnnnnnrnrnnnnnnnnennneerrenn nn 12 24 Ar ui 19 2 5 Air Filters and Filter Change Procedures E 19 2 6 Water Air Heaters Air Coolers Direct Evaporation Air Coolers 20 2 7 Electric Air Heaters in VERSO S Series Air Handling Units ccccccccceccceeessseesseeeeeeeeeeeeeeeueanaeeeeess 24 2 8 Electric Air Heaters in VERSO P PCF and VERSO R RHP Series Air Handling Units 24 2 9 VERSO Series Air Handling
48. l alarms Alarm history Operation counters A a gt Effieciency status ai Filter status Filter status Inspection lightin Inspection lighting p 8 E p is In this menu item you can switch on off the light during the unit inspection for instance when replacing filters The option appears on the panel only if the air handling unit has been pre ordered with built in lighting 6 9 7 VAV status Alarms Status VAV status Actual alarms VAV calibration stat Alarm history Not calibrated Start Alarms Status Operation counters calibration Efficiency status Filters status VAV status In this menu it is possible to calibrate the VAV function and to review its mode Calibration of the variable air volume control mode 1 Prior to starting the unit it is necessary to adjust the air distribution and exhaust devices contained in the ventilation system and to open all variable air volume valves in the branches and channels so that air would be supplied to all rooms to be ventilated 2 To start the air handling unit and in accordance with the diagram shown above to start the VAV calibration The VAV mode status will change to Calibration When calibration is completed the VAV mode status will change to Supply Extract or Double depending on the configuration of the pressure sensors 3 When the calibration process is completed the air handling unit will continue operation in the previous mode 6 10 Settings T I This
49. l insulation and sound attenuation Unit cover panels are 45 mm thick The air handling units are intended for ventilation of medium sized and big sized spaces eg shops offices etc having operating ambient temperature and relative humidity As standard the unit is designed for indoor and outdoor with additional parts placement The operating temperature range for the unit is 30 C 40 C outdoor air temperature The air handling unit is not to be used to transport solid particles even not in areas where there is a risk of explosive gases VERSO R is equipped with a rotary heat exchanger VERSO RHP air handling units with a rotary heat exchan ger and a heat pump system VERSO P PCF with plate heat exchanger air filters an electric or water heater fans and automation control system to ensure safe and efficient operation of the unit Before you open the door the unit must be switched off and the fans must have been given time to stop up to 3 minutes The unit contains heating elements that must not be touched when they are hot To maintain a good indoor climate comply with regulations and to avoid condensation damage the unit must never be stopped apart from during service maintenance or in connection with an accident If the unit is placed in spaces with high humidity condensation might occur on the surface of the unit when outdoor temperatures are very low Under conditions when the outdoor air temperature is low and hu
50. late heat exchanger from VERSO P PCF air handling units Demounting of the section HU Screws are unscrew bottom shields are removed Plastic axle pin Screw Frame bolts are removed the frame is removed Frame Frame bolts Plate heat exchanger is removed Condensate diversion mechanism is removed Bolts connecting the sections are removed SE EEGEN Cleaning and Inspection of Plate Heat Exchanger Always clean against the regular direction of airflow Inspection and dedusting of the plate heat exchanger is performed once per year it is removed from the unit and blown with an air blast or washed with tepid water Inspect the condensate drain to make sure that it isn t clogged UAB AMALVA we reserve the right to make changes without prior notice DI CEND 2 3 Rotary Heat Exchanger in VERSO R RHP Air Handling Units The heat exchanger actuator mechanism is oiled with synthetic solution therefore there is no need to oil mechanism during its exploitation It is important to make sure that the rotary heat exchanger mechanism is clean to change the filters installed in the air handling unit on time to perform periodical heat exchanger cleaning The temperature efficiency of a dirty heat exchanger can diminish considerably 1 Rotary heat exchanger frame 5 Main module 2 Rotor 6 Heat pump system
51. le are determined Defrosting frequency depends from opera tion conditions When defrost mode are activated supply air temperature decreases If unit will be operating below 5 C outside air temperature it s recommended to install additional heater Heat pump start up may be delay due to refrigerant low pressure or low exhaust air temperature This causes are not indicated in controller as alarm When conditions change to necessary conditions he pump will start up au tomatically If heat pump capacity are restricted by controller additional cooler or heater are turned on if installed Heat pump capacity depends from air flow It s not recommended to use units with high air flows difference between supply and extract air If there are high difference between supply and extract air flows heat pump ef ficiency and capacity decreases or heat pump may not work properly If the unit are operating with low air flows it is recommended to use OVR function e Heat pump capacity can be limited by reducing the supply or and exhaust air volume e By reducing the air flow below 40 percent of the nominal the heat pump is switched off e By reducing the air flow below 60 percent of the nominal the heat pump power is limited e The heat pump operates at full power when the air is more than 60 percent provided UAB AMALVA we reserve the right to make changes without prior notice EHA exhaust air ETA extract indoor
52. ling unit takes less space and it is more convenient to install 1 VERSO R RHP or VERSO P PCF with air heater installed outside the unit 2 VERSO R RHP or VERSO P PCF with air heater or air cooler installed outside the unit Water Air Heaters Air Coolers Direct Evaporation Air Coolers Mounting Types at the Top of VERSO P PCF VERSO R RHP Units 1 VERSO R RHP or VERSO P PCF with air heater and air cooler positioned on the welded frame outside the unit base frame with legs for heat recovery section only as additional set 2 VERSO R RHP or VERSO P PCF with air heater and air cooler suspended outside the unit hanging bar only as additional set 3 VERSO R RHP or VERSO P PCF with a suspended air heater outside the unit UAB AMALVA we reserve the right to make changes without prior notice EI CEND Water Air Heater Air Cooler Direct Evaporation Air Cooler Connection to VERSO P PCF and VERSO R RHP Series Air Handling Units When connecting heat exchanger to the system it is necessary to use two pipe wrenches AN Be careful when exploitating hot water air heaters as the heating agent temperature may reach 130 C When operating air handling unit in the temperatures lower than 0 C it is necessary to use glycol additionally or assure the reversible heating agent temperature more than 25 C AN It is important to maintain air heaters and coolers cleanliness that is to change filt
53. midity is high risk of heat exchanger frost ing may appear For this reason anti frost protection function is foreseen in the controller of the Komfovent air handling units Depending on the type of the recovery different methods of anti frost protection are available cold air by passing or and supply air fan speed reducing For extremely low outdoor air temperature the duct mounted preheater is recommended Counter cross flow heat exchanger is the mostly sensitive for low outside air temperatures as the risk of frosting appears in the temperature range from 0 to 5 C and below Standard aluminium cross flow plate heat exchanger has better features as the risk of freezing appears only at 10 C The lowest risk and the highest resistance to cold outside air is a competitive feature of the rotary heat ex changer as it is not freezing even at the temperatures of 30 C if the humidity level of the air is appropriate E UAB AMALVA we reserve the right to make changes without prior notice komfovent 1 6 VERSO Air Handling Units Composing Options VERSO S VERSO P PCF VERSO R RHP VW od Fab WU dec am SCT AIC DE 4H B gt pL RT PICO outdoor intake p supply air gt extract indoor d exhaust air IS 1 Air handling unit inspection doors on the right supplied airflow into room is on the bottom of the unit IS 2 Air handling unit inspection doors on the left supplied airflow into room is on t
54. mit to the building construction therefore it is rec ommended to use flexible connectors absorbing air duct holders Air ducts must be selected so that air flow would not create additional noise and vibration e Air handling unit has to be installed on a fairly massive and solid base considering mass of the unit and the construction standards It is recommended to lay gum sheets between air handling unit and the base UAB AMALVA we reserve the right to make changes without prior notice E CEND 4 3 Connection to the air duct VERSO Air Handling Unit is connected to the Air Duct in Two Ways Air ducts are connected to VERSO units through L 20 connectors VERSO units of size 60 70 80 90 are connected through L 30 Air damper connection to the air duct 1 Bolt 2 Connector 3 Flange 4 Air duct 5 Single sided adhesive gasket AOTC TM RN TTT Flange connection to the air duct Screwed bolts M8x20 in the corners Special adhesive gasket ensures tightness 2 1 Bolt 2 C profile for flange connection 3 Single sided adhesive gasket 4 4 VERSO Air Handling Units Sloping Drain Tray The bend of the water trap can be repositioned by turning it to the right or the left The drain line from the water trap must be arranged so that it will not damage adjacent unit sections or building elements If the drain line is run through cold spaces it should be insulated to prevent freezing A heating cable may be required Wat
55. nges without prior notice EJ CEND 5 ELECTRICAL INSTALLATION MANUAL Installation works may be performed only by duly qualified personnel The following requirements must be fulfilled during installation AN It is recommended to lay control circuit cables separately from power ca bles or to use shielded cables In this case the cable shielding must be grounded 5 1 Air Handling Units Sections Connection After unit parts have been connected together see Units Installation Instructions the connecting cables and wires of the sections of the unit are connected Connector connection is performed strictly according to numeration given in wiring diagram or adequate markings see unit electric scheme When disconnecting sections of the unit do not pull connecting wires and cables 5 2 Electric Power Supply Connection Electric power supply 400 V AC 50 Hz voltage is connected to the main switch which is envisaged in the heat exchanger middle section of the air handling unit Prior to connecting to the power supply the main switch must be installed near the unit in the intended place or directly on its wall It is necessary to connect earthing AN Unit must be connected to the stationary installation by solid cable through circuit breaker with 300 mA current leakage protection The power supply cable of the unit and electrical heater is selected according to the maximum current strength indicated in the presented t
56. o times the initial value initiated defrost process Opens by pass valve and hot refrigerant is pumped into the evaporator Reduces rotation speed efficiency of the rotary heat exchanger in order to maintain a 8 C after the rotary heat exchanger e The compressor starts to work the maximum possible efficiency In active defrost function and tasks within a span of absent recorded freezing starts the short preventive de frosting The compressor capacity is limited by the minimum and maximum refrigerant pressure and air flow When system pressure are near the lower values reduces compressor efficiency speed When reaches the minimum permissible compressor capacity and pressure limits the problem remains the compressor stops After some time the compressor switches on again and monitors coolant pressure If the pressure reaches a critical value the compressor stops If it happens three times a certain time after that compressor no longer activates and controller shows message Low compressor pressure or High compressor pressure respectively The drop eliminator and evaporator pan is with heating cable which prevents the formation of ice and it facilitates the removal of condensate The heating cable is switch on when air temperature after evaporator is less than 0 C 18 UAB AMALVA we reserve the right to make changes without prior notice komfovent 2 4 Air Dampers Closing air dampers wit
57. ol EF symbol d V a n th LU Le Preset schedule operation jen OVR function symbol LN symbol A 6 4 Parameters Review The main parameters of the unit are indicated in four main windows of the panel Picture 6 4 In order to review the parameters buttons should be used In this manner the panel windows can be switched to the tem peratures air volume or quality air humidity indication window E3 UAB AMALVA we reserve the right to make changes without prior notice komfovent Main windows of control panel 16 21 Mon 25 09 2012 16 21 Mon 25 09 2012 Extract air volume el A 125eew n Supply air volume AE LA oes 13100m h Extract air temperature S fi Supply air temperature E afr H gt 21 9 oS ne LEGCO oO O O Extract air quality l fe A seo ppm Outside temperature Supply air humidit A E EAE GOXRH upply air humidity 9 a TN E et LAG a TE Ai 6 4 Picture Note The fourth window is shown only when the air quality or humidity function is activated 6 5 Unit Programmable Settings By touching E button in the main window the parameters setting menu Picture 6 5 is entered The menu window is selected with buttons When the required menu for setting the desired parameter has been selected the button E is pressed again and the desired item is selected or the value is set with After the selection is set the value is confirmed by pressing again Pressing button in any m
58. r blocked sensor Water temperature sensor The water temperature sensor is not con Check connections of the sensor or replace the failure nected or broken sensor Return water Return water temperature of the heater Check the status and operation of the circulation temperature low dropped below the permissible limit pump heating system and mixing valve actuator m Check the ventilation system Find the source of Internal fire alarm Fire danger in the ventilation system ihe Best A8 UAB AMALVA we reserve the right to make changes without prior notice Too high resistance of the ventilation sys Low extract air flow tem komfovent A fire signal has been received from the fire NENNEN NN alarm message and restart the unit when External fire alarm signalization system of the building the fire signal disappears A signal from an external device switch As soon as the auxiliary device is switched off the External stop timer or sensor has been received unit will operate in the previous mode Blocked or not rotating rotor by pass Check the rotor drive replace the belt or check the Heat exchanger failure damper failure by pass channel operation Check the operation of the rotation heat exchanger drive or the air bypass damper of the plate heat exchanger The heating equipment fails to operate or Low supply air temperature its capacity is insufficient Check the heating equipment High suppl
59. r dampers closing 2 Supply air filters 3 Exhaust air filters 4 Supply air fan with electric motor 5 Exhaust air fan with electirc motor 6 Plate heat exchanger 7 Air heater water or electric 8 Air cooler water or direct evaporation 9 Main module 10 Base frame 11 12 13 14 15 Sections connection Sections connection Sealing gasket Connection bolt Frequency inverter 16 Extension module 10 16 15 4 7 8 UAB AMALVA we reserve the right to make changes without prior notice CEND 1 4 VERSO R RHP Air Handling Units Equipped with Rotary Heat Exchanger 1 2 Supply air filters 3 Exhaust air filters 4 Supply air fan with electric motor 5 Exhaust air fan with electirc motor 6 Rotary heat exchanger 7 Air heater water or electric 8 Air cooler water or direct evaporation 9 Main module 10 11 Sections connection 12 Sections connection 13 Sealing gasket 14 Connection bolt 15 Frequency inverter 16 Extension module SR ele BARBS dI Air dampers closing 9 q AAT Ga d ING SOE FLT en Fs ll k VALL d Base frame H1 S Fesch 1 5 Brief Description of the Unit Casings of air handling units are made of galvanized steel sheets which are powder painted Mineral wool is used for therma
60. s lifted by crane on a wooded pallet B Unit is transported by lift truck on a wooded pallet C One section of the unit is transported by lift truck on a wooden pallet D One section of the unit is transported by cart on a wooden pallet E Carts on a wooden pallet transport the unit UAB AMALVA we reserve the right to make changes without prior notice CEND 4 VERSO AIR HANDLING UNITS INSTALLATION 4 1 VERSO Air Handling Units Maintenance Space Maintenance space is needed for convenient inspection of the unit perform maintenance works when there is a need to pull it out for inspection change parts of the unit or even the whole unit In order to change some unit components there might be a need to demount the unit partially or completely The minimal unit maintenance space range is enough to change air handling unit filter A recommended space for the unit maintenance Amin minimal necessary space for the unit operation H free space over the installed air handling unit B recommended space behind the air handling unit E UAB AMALVA we reserve the right to make changes without prior notice komfovent 4 2 Setting and Installing VERSO Air Handling Units Before installing air handling unit it is important to remove transportation elements If the unit was transported not on the positioning frame sections should be placed from wooden panels to positioning frame The unit is installed on even and solid base locat
61. t valid if the unit was installed or operated improperly or it was damaged mechanically also if the unit constituent parts are changed unauthorized or operation conditions are not suitable aggressive environment humidity etc It is forbidden to destroy wilfully air handling unit sections frames fan motor or other air handling unit parts during warranty period If this requirement is not followed the unit will not be serviced under the warranty service conditions When operating the unit periodical air handling unit checks ups by the user should be recorded in the Techni cal Service Register Qualified specialist authorized by the user should make the entries When operating the air handling unit most important is to check the components that get dirty the soonest for example filters heat exchangers etc Periodical check ups of the air handling unit are done every 4 months During the check up the heat exchanger condition is checked whether the condensate drainage siphon and other components of the air handling unit are not dirty When the filters are dirty the warning system informs about it such system has to be installed when installing the unit Check ups and technical service has to be performed by the qualified specialists It is necessary to follow the instructions of heating system during exploitation period of the unit AN Specific warranty conditions are in unit warranty list UAB AMALVA we reserve the right to make cha
62. ter giving the signal O 10 V to the appropriate input it will be converted according to the current determined air volume For example if the maximum air flow of the unit is 1000 m h setpoint in the panel 800 m h and the B6 input value 7 V the unit will supply constant air volume of 560 m h i e 70 of the set value The same applies to the exhaust air only by B7 input see picture 5 3 b EJ UAB AMALVA we reserve the right to make changes without prior notice komfovent 6 6 3 Temperature control modes Operation mode Operation mode Comfort1 Supply Flow control Exhaust i Room Temperature control U Balance Supply The air handling unit provides for several temperature control modes e Supply The unit supplies air according to the temperature preset by the user e Exhaust Unit automatically supplies air of such temperature to maintain preset exhaust air temperature e Room Operation is similar to the mode exhaust but temperature is maintained by the sensor mounted in the room B8 e Balance Supply air temperature maintenance value will be determined automatically from the existing exhaust air temperature i e what the air will be removed from the premises and the same will be returned back AN When Balance is selected the temperature setpoint disappears 1m 6 7 Functions of the unit Ri h om 6 7 1 Air quality control Functions Air quality control On A
63. the control of the Air quality function A room sensor with the analogue output 0 10V DC should be designed for this function 6 7 7 Recirculation control Functions Functions Recirculation control Summer night cooling Summer night cooling Setpointi 600ppm o ti of d Mode1 Comfort1 peration on deman Min fresh air1 30 Off Setpoint2 800ppm Recirculation control Recircuisaction COLTUL Mode2 Economy2 OFF Off Min fresh air2 15 The air handling unit with a mixing section has the extract air recirculation function i e when the extract air flow is returned to the room Recirculation can be performed according to e Room air quality In this case air quality sensor should be additionally connected to the controller terminals B8 Air quality sensor The user can set the air quality value to be maintained so that when it is exceeded the recirculation damper is closed and the unit supplies more fresh air Recirculation according to air quality is performed by the same sensor which is used in the control of the Air quality function External temperature Recirculation will be controlled to the external temperature curve set by the user e g Recirculated air 100 4 Outdoor temperature C 0 20 0 20 30 e Weekly schedule The user can set an automatic program for the whole week where the following can be assigned the moment and percentage of r
64. ud tyje yra Kioto protokole nurodyt fluorinty iltnamio efekt sukelian i duj DO NOT VENT INTO ATMOSPHERE NEISLEISTI APLINKA e R 410A Global Warming Potential GWP 1730 R 410A Globalinio Silt jimo potencialas GWP 1730 wawkomfoventeam UAB AMALVA we reserve the right to make changes without prior notice 15 CEND Troubleshooting of heat pump Possible solution Possible solution No Message Probable cause in heating mode in cooling mode Compressor motor drive or control system See operation manual p 94 failure Compressor failure The compressor has operated in critical conditions or there is insuf Overload protection ficient refrigerant amount in heat pump hydraulic circuit Check the activated working conditions and make sure they are in limits Low refrigerant level see item C8 Low air flow Increase supply air flow Increase extracted air flow Condenser obstructed Clean condenser surface Check pressure in heat pump system with manometers If pressure reading does not match check cable connection or replace transmit ter if necessary High pressure trans ducer failure Incondensable gas in heat pump hydraulic Recharge circuit after having drained and evacuated it High pressure on com Circuit ressor i i p Refrigerant filter Check and replace if necessary clogged Excessive refrigerant Discharge the excess gas charge Expansion valve does Check and replac
65. x front roof plate with screw 4 2 x 13 Place on the top roof plate 2 Find the right place of middle roof support 10 Mark it Replace roof plate Fix middle roof support with screw 4 2 x 13 Fix roof plates to the supports with screw 4 8 x 20 If itis side section of the unit fix side roof support 11 If section is middle no supports are needed Roof must be joint and fixed with plate fixer 3 with screw 8 4 8 x 20 with EPDM rubber pU ue wes On the supply and exhaust air vents there is a possibility to mount additional casings and external grills It is needed to protect water trap tubes from freezing in VERSO units Please look at the siphon installation guide 26 UAB AMALVA we reserve the right to make changes without prior notice komfovent 3 VERSO AIR HANDLING UNITS TRANSPORTATION VERSO Air Handling Units Transportation by Crane Lift Truck and Carts The unit is transported separately While transported each section is fixed to a wooden pallet and wrapped Dampers and flanges are supplied not fixed to the unit They are on the top of each unit section Sealing connecting and fixing bolts are inside in each section Base frame is separate from the unit during the transportation When unit is loaded or unloaded by crane cargo rope is fastened in its designated places Lift truck or cart can transport air handling unit as it is shown in the pictures A Separate unit part i
66. y air The heating equipment Is not controllable Check the heating equipment temperature mixing valve or contactor is blocked The emergency overheating protection of Protection can be reset only by pressing the RE Ecos heater oyerheak the electrical heater has actuated SET press button on the heater Evaporator air temperature The evaporator air temperature sensor is Check connections of the sensor or replace the sensor failure not connected or broken sensor The evaporator is iced over due to exces Evaporator icing sively high humidity content in the exhaust air and low outdoor temperatures Icing may form under a low outdoor tem SEET perature and high room humidity Check the operation of the evaporator defrost sys tem see Troubleshooting of heat pump p 62 Compressor system operated in an overload mode as a result of too high temperature in the condensing unit High pressure on compressor Indentify the cause and eliminate it see Trouble shooting of heat pump p 62 Low pressure on Compressor system is leaky or the Indentify the cause and eliminate it see Trouble compressor amount of refrigerant is insufficient shooting of heat pump p 62 No power suerg Check supply voltage on the circuit breaker and or H ER make sure whether it is on Check that the supply voltage is on all three phases Supply voltage mismatches if necessary swap the two phase conductor posi Compressor failure tions
67. y air flow l n Check pressure pipes air dampers air filters and make sure that the ventilation system is not blocked a i Pressure sensors are not connected or Check connections of the sensor or replace the VAV calibration fail broken censor Change outdoor air filter The fresh air filter is blocked Shut down the unit and replace the filter Change extract air filter The extract air filter is blocked Shut down the unit and replace the filter es hae As soon as the heater cools down protec The heater is disconnected due to too low Electric heater off tion resets automatically It is recommended to SI volume increase the ventilation intensity level Temporary mode which can be activated The service mode is switched off by simply delet Service mode by the service personnel ing the alert message Supply air temperature sen The supply air temperature sensor is not Check connections of the sensor or replace the sor failure connected or broken sensor Extract air temperature sen The discharged air temperature sensor is Check connections of the sensor or replace the sor failure not connected or broken sensor Outdoor air temperature The external air temperature sensor is not Check connections of the sensor or replace the sensor failure connected or broken sensor Exhaust air temperature The exhaust air temperature sensor is not Check connections of the sensor or replace the sensor failure connected o

Download Pdf Manuals

Related Search

Related Contents

KC-10MB  Samsung DVD-E238 คู่มือการใช้งาน  Fujitsu V14 User's Manual  OWNER S AND OPERATOR S MANUAL  sp s urodorant p uissant de surfaces  Datamax E-3202 User's Manual  Teledyne 4060 User's Manual  PVC ALL ROUND CLEANER  T103C manuale d'uso/user manual    

Copyright © All rights reserved. Failed to retrieve file