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UAB KOMFOVENT we reserve the right to make changes without prior notice

VERSO PRO2_guide_20-07

3. OPTIONAL FUNCTIONS

3.1. Recirculation (REC)

Extracted air recirculation function is available in units with recirculation sections. Recirculation section is intended for 

mixing extracted and supplied air for heating or cooling of air flows in order to reduce energy consumption of heaters/coolers. 

The recirculation damper control method is selected during ordering of the unit. Available recirculation damper control 

methods:

•  By air quality

When the indoor air quality is good, a recirculation damper is opened and outdoor dampers are closed. In this way, the 

extracted air is returned to the supply air flow. When air quality is decreasing, the recirculation valve starts gradually closing 
and more fresh air is supplied from outside. The user may also set minimum fresh air volume to be supplied even when the 
indoor air quality is good.

•  By schedule

The user sets a weekly schedule with times and percentage for opening the recirculation damper.

•  By outdoor temperature

The user sets outdoor temperature limits at which the recirculation damper will be opened proportionally:

R

ecir

cula

ted air

, %

Winter 

recirculation 

stop

Winter 

recirculation 

start

Summer 

recirculation 

start

Summer 

recirculation 

stop

0

100

Outdoor temperature, °C

Fig. 3 

REC function operation

•  Control by external signal

Recirculation damper position is changed by connecting an external device (switch, motion sensor, thermostat) to the 

C5 controller board, which opens or closes contacts (see “Installation Manual”). The user specifies two recirculation damper 
positions (as a percentage): for open and for closed contact. 

The volume of supplied and extracted air for all recirculation control methods is determined by an activated ventilation 

mode (see “Ventilation modes”).

For information on how to activate this function and alter settings see Chapter “Control and Settings”.

3.2. Humidity control function (HUM)

Humidity control function is intended for maintaining the user-defined air humidity level. This function controls air hu-

midifiers or dehumidifiers according to the user-defined humidity level and also can perform dehumidification using inte-
grated heating/cooling devices. This function requires one or two humidity sensors connected to the C5 controller board 
(see “Installation Manual”). 

This function can be used to maintain:

•  Supply air humidity level

 – when a duct-mounted supply air humidity sensor is used.

•  Indoor humidity level 

– when two humidity sensors are used. Indoor air (or extract air) sensor measures the desired 

humidity level in the premises, whereas the supplied air humidity is limited according to the readings of a duct-mounted 
humidity sensor. 
Settings for humidity control function and humidifier/dehumidifier control type is selected during ordering of the air 

handling unit. Later, these settings may only be changed by a service representative. Humidity control function has priority 
over AQC function. For information on how set a desired humidity value see Chapter “Control and Settings”.

Содержание Verso Pro 2 Series

Страница 1: ...User Manual EN Verso Pro 2 ...

Страница 2: ...ETTINGS CONTROL PANEL C5 1 11 4 1 Parameter overview 12 4 2 Turning on and selection of ventilation modes 13 4 2 1 Calibration of the CF heat exchanger during commissioning 13 4 3 Setting parameters of ventilation modes 14 4 4 Scheduling window and ventilation schedule settings 15 4 5 Overview window 16 4 6 Functions 17 4 7 Settings 20 4 7 1 Air handling unit 20 4 7 2 Customization 21 5 CONTROL AN...

Страница 3: ...tion schedule 32 5 5 Settings 32 5 5 1 Date time 32 5 5 2 Connectivity 33 5 5 3 User interface 33 5 5 4 Log in password 33 5 5 5 Restoring factory settings 34 6 CONTROL VIA A SMARTPHONE 34 7 PERIODIC MAINTENANCE 36 7 1 Housing 37 7 2 Filters 38 7 3 Fans 39 7 4 Rotary heat exchanger 39 7 5 Counter flow heat exchanger 39 7 6 Liquid coupled heat exchangers 39 7 7 Water heater cooler 39 7 8 Direct eva...

Страница 4: ...climatic conditions and will reduce condensation inside the unit that can cause failure in electronic components VERSO PRO2 air handling units are not intended for operation in areas with potentially explosive atmospheres Air handling units are not intended for ventilation and dehumidification of wet premises pools saunas car washes etc When the AHU is installed in a room with high humidity level ...

Страница 5: ...ity 100 desired air temperature 21 C COMFORT 2 average ventilation intensity 50 desired air temperature 21 C ECONOMY 1 low ventilation intensity 33 desired air temperature 20 C ECONOMY 2 minimum ventilation intensity 20 desired air temperature 19 C SPECIAL maximum ventilation intensity 100 desired air temperature 21 C This ventilation mode may also be used to block heating cooling and other functi...

Страница 6: ...range of 0 50 C Room temperature control function will only be available if none of the following functions is activated at the same time AQC OOD REC by air quality Balance supplied air temperature will be maintained to be the same as extracted air temperature therefore selecting a desired temperature in the ventilation mode settings is not possible Room air temperature is measured by an integrate...

Страница 7: ...be reached Fan speed is gradually reduced when the outdoor temperature drops below 5 and the power of the heat exchanger and heater is insufficient to reach the minimum temperature If this function runs for a long time ventilation intensity is reduced to 20 During summer the minimum temperature control function limits power of coolers when in case of cooling demand supplied air temperature is belo...

Страница 8: ... or turning off of the unit Additionally the user may also specify conditions when the override function should run All the time function is activated any time by closing contacts regardless of whether the unit is operating or stopped When running function is activated by closing contacts when the unit is operating When the unit is stopped with a remote controller or by a weekly schedule the funct...

Страница 9: ...ecting an external device switch motion sensor thermostat to the C5 controller board which opens or closes contacts see Installation Manual The user specifies two recirculation damper positions as a percentage for open and for closed contact The volume of supplied and extracted air for all recirculation control methods is determined by an activated ventilation mode see Ventilation modes For inform...

Страница 10: ...dditionally select a multi level antifreeze protection function If this function is ordered the heat exchanger is fitted with a four segment damper If there is a risk of freezing damper segments close open in turns thus preventing the heat exchanger from freezing For more information about this function see in Multi Level frost prevention Instruction Manual The function is only activated at the fa...

Страница 11: ...ging of various functions and settings of the unit Touch sensitive display reacts to soft taps therefore do not use any sharp tools screwdrivers or pens also do not apply excessive force as it may damage the display Operation modes COMFORT 1 COMFORT 2 ECONOMY 1 ECONOMY 1 SPECIAL OFF Back Change settings Activate mode or function Selection of ventilation modes Setpoint 21 0 5 0 C 40 0 C Parameter t...

Страница 12: ...ide mode Alarm signal 4 1 Parameter overview The following parameters are displayed in the main window and parameter overview windows air flow temperatures air quality sensor data and energy recovery Use arrows on the sides of the main screen to browse across parameter windows ECONOMY 1 21 9 C 21 3 C Temperature 16 30 90 18 kW ECONOMY 1 16 30 Energy saving ECONOMY 1 60 RH 800 ppm Air quality 16 30...

Страница 13: ...MFORT 2 ECONOMY 1 ECONOMY 2 SPECIAL OFF Operation modes COMFORT 1 COMFORT 2 ECONOMY 1 ECONOMY 2 SPECIAL OFF Operation modes COMFORT 1 COMFORT 2 ECONOMY 1 ECONOMY 2 SPECIAL OFF Change operation mode ECONOMY 2 21 9 C 21 3 C Temperature 16 30 During the first minute of starting the unit the unit automation checks the settings automation components and opens air dampers Later a signal is released to f...

Страница 14: ...C Temperature 16 30 Operation modes COMFORT 1 COMFORT 2 ECONOMY 1 ECONOMY 2 SPECIAL OFF Reset settings ECONOMY 2 1250 m3 h 1250 m3 h Setpoint 20 C Supply flow Extract flow Supply flow 1300 m3 h 1250 600 m3 h Setpoint 40 0 C 21 0 5 0 C SPECIAL ventilation mode may also be used to disable heating cooling and other functions This saves energy when temperature and other ventilation parameters are less...

Страница 15: ... program 7 Add additional programs if needed up to 20 programs 8 Once the schedule is created activate it by checking Enable box and returning to the main window Functions Settings Overview Menu Scheduling Operation program Holidays Recirculation schedule Operation program Add new program Enable Program 1 Program 2 Operation mode COMFORT 1 Weekdays Mo Tu We Th Fr Sa Su Start time 00 00 Stop time 2...

Страница 16: ...s with identification codes A at the end of the code means that the error is critical and the unit will be stopped until the fault is rectified B at the end of the code means that the message is informational and the unit will keep running Once the cause is resolved delete relevant errors and messages by pressing Reset For more information see Chapter 8 Troubleshooting Press History button to show...

Страница 17: ...ration of individual devices of the AHU and other detailed data 4 6 Functions In menu item Functions you can activate or alter all functions of the unit Press the function name or an arrow to display the function settings Functions Settings Overview Menu Functions 1 2 Air quality control Operation on demand Outdoor compensated ventilation Summer night cooling Minimum tempera ture control Functions...

Страница 18: ...door 25 C Stop when indoor 20 C Summer night cooling Reset settings Enable Setpoint 15 C Minimum temperature Air quality control AQC Selecting an air quality limit up to which the air handling unit will run during the activated mode and above which the ventilation intensity will be automatically increased Air quality limit is set for two different ventilation modes during which the function will b...

Страница 19: ...circulation control signal contacts Additional zone control ZN 2 In this window you can set a desired supply air temperature for an individual ventilation zone 1 Displayed only when this function is pre ordered 2 This function only runs when optional additional zone modules are connected Override function OVR Selecting conditions for activating the function all the time only when the unit is runni...

Страница 20: ...ring ventilation modes according to the selected control method Temperature control Supply Extract Room Balance Flow control The user can select a desired air flow control method see Chapter Air Flow Control Flow control CAV VAV Double DCV Air quality Selected air quality sensor type is used in AQC OOD and REC functions by air quality Sensor type CO2 VOCq VOCp RH TMP Time data Time and date settin...

Страница 21: ...ver Brightness 25 50 75 100 Time Row 1 1 2 Panel temperature Panel humidity Supply temperature Extract temperature Panel lock The panel can be locked using a four digit code To ac tivate a panel lock enter your PIN code and press Confirm When the lock is activated the panel will lock every time a screen saver appears You will need to enter the same code again to access the main window or other set...

Страница 22: ...gram2 and information about operation of the unit You can also turn your AHU on off in this window Modes Overview Alarms Status Functions Settings Scheduling Operation mode AHU control Į On Off Active functions Alarm status Off No alarms 0 8 0 C 26 2 C 0 Pa 200 ppm 0 m h 27 9 C 0 m h 0 6 5 C 0 10 0 C 0 Pa 0 ppm ON OFF button Simplified functional diagram of the unit Setting windows Current status o...

Страница 23: ...u can select air volume for supplied and extracted air separately and desired temperature for each ventilation mode Air volume is set in the units specified in the user interface settings Supply flow Extract flow 6000 6000 Setpoint C Comfort1 m h m h 21 0 Special ventilation mode may also be used to block heating cooling signals and disable recirculation and humidifica tion functions To disable a ...

Страница 24: ...ons Here you can enable disable ventilation functions and change their settings 5 2 1 Air quality control Selecting air quality limit up to which the air handling unit will operate in a selected mode and above which the ventila tion intensity will be automatically increased Air quality limit is set for two different ventilation modes during which the function will be used and the desired value wil...

Страница 25: ...stop OUTDOOR COMPENSATED VENTILATION OCV 40 0 C C 0 0 20 0 C C 50 0 5 2 3 Minimum temperature control MTC Setting a minimum desired supply air temperature Enable Setpoint MIN TEMPERATURE CONTROL MTC 18 0 C 5 2 4 Summer night cooling SNC Setting two indoor temperatures for the function to start running and stop Enable Stop when indoor SUMMER NIGHT COOLING SNC Start when indoor 25 0 C 25 0 C 5 2 5 O...

Страница 26: ... from the outside as a percentage of the set air volume even when the indoor air quality is good Air quality limit is set for two different ventilation modes during which the function will be used and the desired value will change automatically as the mode changes If the unit operates in a different ventilation mode than the one set REC function is disabled automatically Enable RECIRCULATION CONTR...

Страница 27: ...on control signal con tacts Enable RECIRCULATION CONTROL REC Activated recirculation Default recirculation 0 60 5 2 8 Humidity control HUM 1 Setting a desired relative humidity level Humidity level is set for two different ventilation modes during which this func tion will be used and the desired value will change automatically as the mode changes If the unit operates in a different ventilation mo...

Страница 28: ...lies ACTUAL ALARMS ALARM HISTORY OPERATION COUNTERS EFFICIENCY STATUS VAV STATUS CONTROLLER STATUS 5 3 1 Actual alarms This menu item displays relevant messages with identification codes A at the end of the code means that the error is critical and the unit will be stopped until the fault is rectified B at the end of the code means that the message is informa tional and the unit will keep running ...

Страница 29: ...operation 366 h 151 h 363 h Recovered energy 2227 kWh Reset Reset Reset Reset 5 3 4 Efficiency status EFFICIENCY STATUS Heat exchanger recovery Heat exchanger thermal efficiency Thermal energy saving CF exchanger calibration 8 6 W 100 Run Calibrated In this menu you can also calibrate CF heat exchanger1 if not calibrated during the first start up If calibration was successful and the display shows...

Страница 30: ...ownstream the filter and automatically set the filtration class 5 3 6 VAV status This window is intended for VAV mode calibration Calibration must be performed by a qualified specialist in accordance with a separate VAV Function Installation Instruction VAVSTATUS VAV calibration VAV mode Double Run 5 3 7 Controller status Overview of the controller and control panel software versions CONTROLLERSTA...

Страница 31: ...elected in the ventilation mode setup screen the air handling unit will only operate at a specified time There is no need to set periods for stopping the unit OPERATION PROGRAM Mo Tu We Th Fr Sa Su Start Stop Mode 06 00 08 00 Comfort1 Economy2 Special Comfort2 08 00 17 00 17 00 24 00 00 00 24 00 5 4 2 Holidays Here you can select a holiday program to set dates for the unit to run in a selected mod...

Страница 32: ...ttings Settings menu is intended for user interface configuration Here you can set the time language measurement units computer network settings or change the login password DATE TIME CONNECTIVITY USER INTERFACE Save LOGIN PASSWORD SETTINGS RESET 5 5 1 Date time In this menu item the used can set the time and date of the unit used for various functions and operation by a weekly schedule When the D...

Страница 33: ...trol panel air flow meas urement units and the device name that will be displayed in the web browser If one computer is used to control several air handling units we recommend naming every unit differently This will facilitate distinguishing the units Language USERINTERFACE m h Flow units AHU name English Komfovent 5 5 4 Log in password Here you can change your password used to log in to the air h...

Страница 34: ...h your mobile device is almost the same as with a C5 1 control panel Screens and settings are so similar that you can follow the chapter C5 1 Control Panel to perform neces sary changes or settings The app language is automatically selected according to the language used in your mobile device and can differ from the language set in your air handling unit Connect the unit to a network router The un...

Страница 35: ... 8 9 0 x Connectivity Default Add new Delete 192 168 0 50 502 Select a row with newly entered settings and press the return button When the app asks you if you want to connect to the selected unit confirm the message Once connected to the unit the main screen and current status of the unit will be displayed on the app Connectivity Default 192 168 0 50 502 Komfovent 123 123 123 502 Add new Delete C...

Страница 36: ...installed Maintenance intervals may be shorter following the national hygiene norms and specific require ments for ventilation of the premises Task Frequency Commissioning 3 months 6 months 12 months 7 1 Housing Mechanical damage X X Air tightness and gaskets of the sections X X Horizontality of the sections X X Air tightness and gaskets of doors and locks X X Air damper operation X X Condensate d...

Страница 37: ...objects debris or tools inside the unit Inner and outer surfaces shall be cleaned with a damp cloth or a vacuum cleaner Also check the housing for mechanical damage or signs of corrosion which could affect normal operation of the unit As building stability may change over time e g settling of foundations regular unit horizontality checks using a level gauge are recommended levelling shall be per f...

Страница 38: ...erential pressure sensors are installed check them for proper operation check whether their pressure tubes are clean intact Fig 4 Filter clamping device To insert remove filters push two handles at the top and bottom of the filter forward to release a filter clamping device Filters are removed inserted one by one number of filters depends on the unit size Once the filters are replaced inserted han...

Страница 39: ...ntial pressure sensors and tubes of the heat exchanger if installed Inspect gaskets and sealed connection joints Replace gaskets and reseal joints if needed Air channels of the heat exchanger may be contaminated with grease oils limescale and other dirt over time It shall be cleaned with compressed air 6 bar If dirt cannot be removed with compressed air or as provided for in the requirements for v...

Страница 40: ...enance in accordance with the manufacturer s documentation 7 12 Silencers Silencers shall be disassembled for cleaning Metal parts can be cleaned with a damp cloth Noise suppression elements shall be cleaned with a vacuum cleaner Washing or cleaning with damp products is not allowed 8 TROUBLESHOOTING Device automation continuously monitors the operation of various nodes and function algorithms If ...

Страница 41: ...en above 70 C because 1 Supply air flow is too low at high heating demand 2 Electric heater malfunctioning When the heater cools down it will turn on again automatically 1 a Check air filters and air ducts 1 b Decrease the desired temperature 1 c Increase ventilation intensity 2 Contact authorised service 14B Service time Time for annual periodic maintenance Clear the message after performing peri...

Страница 42: ...ng system as well as operation of a mixing valve actuator Check if hot water is available in the system 12A Internal fire alarm 1 Internal temperature is above 50 C 2 Faulty temperature sensor 1 Locate the heat source in the ductwork or unit 2 Contact authorised service 13A External fire alarm A fire alarm received from the building s fire protection system Once fire alarm is resolved the unit mus...

Страница 43: ...e settings 3 Contact authorised service 21A 23A Electric heater overheat Electrical heater temperature has risen above 100 C because 1 Supply air flow too low at high heating demand 2 Power failure during operation of the electric heater the heater could not cool down 3 Electric heater malfunctioning 1 a Check the air duct system air intake and exhaust dampers fan operation 1 b Decrease the desire...

Страница 44: ... Contact authorised service 91A 98A Controller failure Faulty controller electronic or no connection between controller electronics 1 Check if all wires and cables are connected between the unit sections 2 Contact authorised service 99A 103A Supply fan failure Supply air fan or frequency converter not working 1 Check if all wires and cables are connected between the unit sections 2 Check the fan c...

Страница 45: ...e cover Press two latches on the same side of the box at the same time Remove the automation box cover 4 5 Loosen four screws at the corners of the automation panel Carefully pull the panel to yourself and disconnect cable terminals on the back of the panel Also disconnect the earthing cable fixed to the top panel of the section Disassemble the main circuit breaker box and disconnect the power cor...

Страница 46: ...remove the crossbar 8 9 Unscrew the brackets at the corners that secure the rotor housing to the top and bottom of the section brackets may not be used in smaller units Disconnect cable connections from the filters inspection or recirculation section side Pull the rotor housing out of the section about 10 cm Pull the cable connections through the gap between the rotor housing and the fan section a...

Страница 47: ... washing the rotor motor and electronics must be additionally protected against moisture or dismantled Neutral or mild alkaline detergents and disinfection agents must be used for washing Washing agents may be harmless to the environment shall not damage aluminium foil and shall be intended for use with high pressure washers 12 Install the rotor housing back in the unit section only when it is com...

Страница 48: ... o www agregat si SK TZB produkt s r o www tzbprodukt sk GERMANY Komfovent GmbH Konrad Zuse Str 2a 42551 Velbert Deutschland Tel 49 0 2051 6051180 info komfovent de www komfovent de LITHUANIA UAB KOMFOVENT TECHNINĖS PRIEŽIŪROS SKYRIUS SERVICE AND SUPPORT Phone 370 5 200 8000 Email service komfovent com www komfovent com RUSSIA ООО КОМФОВЕНТ Ул Выборгская д 16 стр 1 2 этаж 206 офис Москва Россия Те...

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