Komfovent VERSO-P Installation And Maintenance Service Manual Download Page 9 | Manualshive

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

9

V2-C5-15-03-v1

outdoor intake

supply air

extract indoor

exhaust air

VERSO-S

VERSO-P/PCF

VERSO-R/RHP

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 the 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.

1.6. VERSO Air Handling Units Composing Options

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Summary of Contents for VERSO-P

Page 1: ...VERSO S R P RHP PCF EN Installation and Maintenance Service Manual C5 ...

Page 2: ......

Page 3: ...ries Air Handling Units 24 2 9 VERSO Series Air Handling Units Designed for the Outdoor Use 26 3 VERSO AIR HANDLING UNITS TRANSPORTATION 27 4 VERSO AIR HANDLING UNITS INSTALLATION 28 4 1 VERSO Air Handling Units Maintenance Space 28 4 2 Setting and Installing VERSO Air Handling Units 29 4 3 Connection to the air duct 30 4 4 VERSO Air Handling Units Sloping Drain Tray 30 4 5 Check up before turning...

Page 4: ...ling please contact your local city office waste authority approved WEEE scheme or your household waste disposal service 6 7 2 Outdoor compensated ventilation 40 6 7 3 Minimum temperature control 40 6 7 4 Override function 40 6 7 5 Summer night cooling 41 6 7 6 Operation on demand 41 6 7 7 Recirculation control 42 6 7 8 Humidity control 42 6 8 Unit operation scheduling 43 6 8 1 Operation program 4...

Page 5: ...s before switching off the unit Before performing any inspection work inside the unit be sure the unit s electric power supply is disconnected and there are no rotating parts 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...

Page 6: ...tenuator Water air heater Electrical air heater Inspection VERSO Air Handling Units marking informative VERSO Air Handling Units marking warning Note Important information in the instruction manual Caution Rotating parts Place for siphon Note Before performing any inspection work inside the unit be sure the unit s electric power supply is disconnected 1 1 VERSO Air Handling Units marking ...

Page 7: ... Units Equipped with Plate Heat Exchanger 7 Base frame 8 Sections connection 9 Sealing gasket 10 Connection bolt 11 Extension module 12 Main module 1 Air 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 ...

Page 8: ...r 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 condensat...

Page 9: ...t 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 the 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 1 6 VERSO Air Handling ...

Page 10: ...hether the unit is switched off from the electric power supply 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...

Page 11: ... the section 9 1 8 7 4 4 5 6 2 3 1 Screws are unscrew bottom shields are removed 2 Plastic axle pin 3 Screw 4 Frame bolts are removed the frame is removed 5 Frame 6 Frame bolts 7 Plate heat exchanger is removed 8 Condensate diversion mechanism is removed 9 Bolts connecting the sections are removed Cleaning and Inspection of Plate Heat Exchanger Always clean against the regular direction of airflow...

Page 12: ...bar high pressure 42 bar For stable operation of the device set the device controlling mode under the outdoor temperature duct or room Inside the unit is refrigerant R410A friendly to environment 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 moistu...

Page 13: ...4 way valve 3 Check valve 4 Liquid receiver 5 Rotalock valve 6 Filter drier 7 Moisture indicator 8 Electronic expansion valve VERSO RHP 10 20 30 VERSO RHP 40 50 9 Solenoid valve 10 LP tranducer 11 HP tranducer 12 Temperature tranducer 13 Supply air coil 14 Exhaust air coil 15 LP service port 16 HP service port 2 5 6 13 14 3 3 4 1 12 11 10 9 8 7 15 16 ...

Page 14: ...e indicator 8 Electronic expansion valve 9 Thermostatic expansion valve 10 Solenoid valve 11 LP tranducer 12 HP tranducer 13 Temperature tranducer 14 LP cut off 15 HP cut off 16 Supply air coil 17 Exhaust air coil 18 LP service port 19 HP service port 20 Inverter for compressor VERSO RHP 60 70 80 90 Two circuit system 16 1 3 3 3 4 5 7 8 9 17 6 6 10 14 2 2 12 15 5 11 13 19 18 19 18 12 15 20 ...

Page 15: ... VERSO RHp unit data 10 20 30 40 50 60 70 80 90 Number of circuits 1 1 1 1 1 2 2 2 2 Compressors quantity in one circuit 1 1 1 2 2 1 1 1 1 Refrigerant quantity in 1 circuit kg 2 8 3 5 5 6 8 10 8 9 10 10 Refrigerant quantity in 2 circuit kg 6 6 7 8 8 10 Informative sticker inside the unit ...

Page 16: ...f necessary B8 Liquid receiver rotalock valve is closed Check and open C1 Low pressure on compressor Low air flow Increase supply air flow Increase extracted air flow C2 Frosted evaporator See item D1 C3 Low pressure trans ducer failure Check pressure in heat pump system with manometers If pressure reading does not match check cable connection or replace transmit ter if necessary C4 Evaporator obs...

Page 17: ...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 cycle 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...

Page 18: ...an 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 two 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...

Page 19: ...ic drive fixed under the cap to the air handling unit installed outdoors 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 1 2 2 4 Air Dampers Closing air dampers with aluminium or galvanized ...

Page 20: ...ers are one time used We do not recommend cleaning them Stop the air handling unit before changing filters 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 conn...

Page 21: ...d in mineral wool is mounted on the outside of the unit Therefore air handling unit takes less space and it is more convenient to install 1 2 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 th...

Page 22: ...nt temperature more than 25 C It is important to maintain air heaters and coolers cleanliness that is to change filters 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 l...

Page 23: ...ments 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 sealed with a gasket 12 6 supplied to the device Cleaning and Inspection of Coil Heat Exc...

Page 24: ... main switch 1 3 2 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 1 2 3 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 ...

Page 25: ...e 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 ...

Page 26: ...delivered separately 1 On the edge of the unit place and fix front roof plate with screw 4 2 13 2 Place on the top roof plate 2 Find the right place of middle roof support 10 Mark it Replace roof plate 3 Fix middle roof support with screw 4 2 13 4 Fix roof plates to the supports with screw 4 8 20 5 If it is side section of the unit fix side roof support 11 If section is middle no supports are need...

Page 27: ...DLING 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 d...

Page 28: ...mount the unit partially or completely The minimal unit maintenance space range is enough to change air handling unit filter Size of the unit A Amin H B 10 1000 850 500 500 20 1150 950 500 500 30 1300 950 500 500 40 1500 950 500 500 50 1700 950 500 500 60 1900 950 500 500 70 2100 950 500 500 80 2300 950 500 500 90 2500 950 500 500 VERSO P PCF VERSO R RHP air handling unit middle doors open up only...

Page 29: ... other Wiring connection see electrical installation manual 1 1 2 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 i...

Page 30: ...ctions 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 Water 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 wate...

Page 31: ...angers are connected tightly 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 If 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 Before operating the unit ...

Page 32: ...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 Unit must be connected to the stationary installation by solid cable through circuit breaker with 300 mA current leakage protection The power supply ...

Page 33: ...changes without prior notice 33 V2 C5 15 03 v1 Controller with connection terminals 1 2 3 5 3 a Picture 1 Control panel connection 2 Ethernet computer network or internet connection 3 Fuse 1A External control elements connection 5 3 b Picture ...

Page 34: ...alled in a room where the following conditions are ensured 1 1 Ambient temperature 0 C 40 C 1 2 Relative humidity range 20 80 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 T...

Page 35: ...ult of the unit Air temperature ventilation intensity operation modes and other parameters are set by the touch sensitive buttons Control panel 6 1 Picture Touch sensitive buttons located on the panel mean on off and return to previous menu window entry to parameters change menu set parameters confirmation navigation in the menu parameters value change 6 2 Start up of the unit The unit is started ...

Page 36: ...ation symbol Fan operation symbol Fault symbol Energy recovery operation symbol Summer night cooling function operation symbol Heating operation symbol Humidifier operation symbol Cooling operation symbol Air volume down symbol Recirculation operation symbol Air volume up symbol Preset schedule operation symbol OVR function symbol 6 4 Parameters Review The main parameters of the unit are indicated...

Page 37: ... 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 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 menu window returns you to the previous menu or main window Parameters menu of...

Page 38: ...his 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 ventil...

Page 39: ...m Air quality sensor VOCq 0 100 Air pollution sensor VOCp 0 100 Relative humidity sensor 0 100 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 va...

Page 40: ...ntilation 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 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...

Page 41: ...t is in the closed position 6 7 5 Summer night cooling 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 during 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...

Page 42: ...e 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 Outdoor temperature С Weekly schedule The user can set an automatic program for the whole week where the following can be assigned the moment and percentage of required recirculation The recirculation schedule is set with the scheduling ...

Page 43: ...rs then it shall be pre determined which of them will be used in the dehumidification process 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 th...

Page 44: ...enu shows messages on existing faults Messages are deleted when Delete is selected 6 9 2 Alarm history Former messages are shown here 6 9 3 Operation counters This menu shows the operation time or energy consumption of the heater and fans 6 9 4 Efficiency status The menu is designed to monitor the efficiency of the heat exchanger and fans ...

Page 45: ... 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 ...

Page 46: ...panel or from web browser see con nection settings 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 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...

Page 47: ... 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 inverter unit contr...

Page 48: ...act air flow Too high resistance of the ventilation sys tem Check pressure pipes air dampers air filters and make sure that the ventilation system is not blocked VAV calibration fail Pressure sensors are not connected or broken Check connections of the sensor or replace the sensor Change outdoor air filter The fresh air filter is blocked Shut down the unit and replace the filter Change extract air...

Page 49: ...se and eliminate it see Trouble shooting of heat pump p 62 Low pressure on compressor Compressor system is leaky or the amount of refrigerant is insufficient Indentify the cause and eliminate it see Trouble shooting of heat pump p 62 Compressor failure No power supply Check supply voltage on the circuit breaker and or make sure whether it is on Supply voltage mismatches Check that the supply volta...

Page 50: ...t 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 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 Before performing any jobs inside th...

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