Komfovent VERSO Pro P Installation And Maintenance Service Manual Download Page 13

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

V-C5.1_21-01

2.3. Rotary Heat Exchanger in VER

SO-R/RHP Air H

andling 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 me-

chanism 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 con-

siderably.

Hygroscopic rotors, may transfer unpleasant smells in humid out-

door/room conditions. Silica gel coating of the rotor material, ab-

sorbs humidity together with VOC (Volatile Organic compounds),

emitted by furnishings, building materials, cleaning agents, pol-

luted outside air or in rain water dissolved chemical elements. Smell

strength may differ based on the humidity and VOC concentration

in the air passing through the rotor wheel.

1. Rotary heat exchanger frame

2. Rotor

3. Shaft

4. Actuator with a reducer

5. Main module

6. Heat pump system

7. Control module of electronic expansion valve and heat pump

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, continuity 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. Pol-

luted 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! Con-

tact service personal.

Rotary heat exchanger’s service and maintenance details are de-

scribed in “Rotary heat exchangers” manual.

Summary of Contents for VERSO Pro P

Page 1: ...VERSO PRO S R P RHP PCF INSTALLATION AND MAINTENANCE SERVICE MANUAL EN ...

Page 2: ......

Page 3: ... Air Handling Units Designed for the Outdoor Use 23 3 VERSO AIR HANDLING UNITS TRANSPORTATION 25 4 VERSO AIR HANDLING UNITS INSTALLATION 27 4 1 VERSO Air Handling Units Maintenance Space 27 4 2 Setting and Installing VERSO Air Handling Units 28 4 3 Connection to Air Ducts 29 4 4 VERSO Air Handling Units Sloping Drain Tray 30 4 5 Check up before turning on VERSO Air Handling Unit 31 5 ELECTRICAL IN...

Page 4: ...esources For more information about where you can drop off your waste equipment for recycling please contact your local city office waste authority approved WEEE scheme or your household waste disposal service 6 5 2 4 Summer night cooling 39 6 5 2 5 Minimum temperature control 40 6 5 2 6 Override function 40 6 5 2 7 Humidity control 40 6 5 2 8 Recirculation control 41 6 5 3 Scheduling 42 6 5 3 1 O...

Page 5: ...e 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 min utes 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 con trol system Be c...

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: ...g 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: ...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 exchanger and a heat pump system VERSO P PCF with plate heat exchanger air filters an electric or water heater fans and automatio...

Page 9: ...sk and the highest resistance to cold outside air is a competitive feature of the rotary heat exchanger as it is not freezing even at the temperatures of 30 C if the humidity level of the air is appropriate 1 6 VERSO Air Handling Units Composing Options VERSO S VERSO P PCF VERSO R RHP R1 L1 R2 L2 outdoor intake supply air extract indoor exhaust air R1 Air handling unit inspection doors on the righ...

Page 10: ...essure between the static pressures is related to the air volume via the energy conservation rate as follows 10080 700 381 w p k 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 10080 700 381 w p k m3 h 32 ØDSa ØLA Ø32 Δp w Cleaning and Inspection of Fans and Fan Space Polluted fans ...

Page 11: ...ion is performed once and it is recom mended to do this during first start up of the AHU for more infor mation refer to section 6 Operation manual Without calibration CF heat exchanger may get frozen and will be damaged during low outdoor temperatures 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 exchang...

Page 12: ...moved 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 Inspection and dedusting of the plate heat exchanger is performed once per year it is removed from the unit and blown with an a...

Page 13: ...the humidity and VOC concentration in the air passing through the rotor wheel 1 2 3 5 5 6 4 4 7 1 Rotary heat exchanger frame 2 Rotor 3 Shaft 4 Actuator with a reducer 5 Main module 6 Heat pump system 7 Control module of electronic expansion valve and heat pump Cleaning and Inspection of Rotary Heat Exchanger Inspection of the rotary heat exchanger is performed once per year Free rotation of the r...

Page 14: ...with two inspection sections figure bellow Ex haust air inspection section are supplied with drop eliminator heating cable and pan for extract air coil Supply air inspection section are with pan and drop eliminator when design air flow velocity threw sup ply air coil are more than 2 m s If supply air velocity threw supply air coil are lower than 2 m s where are no pan and drop eliminator Verso RHP...

Page 15: ... or heat pump will be switched off D A C B RCA Figure 2 D exhaust air C extract indoor A outdoor intake B supply air RCA recirculated air Maximum outside temperature for heating is 15 C and minimum outside air temperature for cool ing is 20 C If outside air temperature exceed this limits heat pump will be switched off and indica tion icon will occur in control panel more detail in page 32 When exh...

Page 16: ... 40 50 60 70 80 90 Number of circuits 1 1 1 1 1 2 2 3 3 Compressors quantity per circuit 1 1 1 1 1 1 1 1 1 Refrigerant quantity in 1st circuit kg 2 8 3 5 5 6 8 0 10 0 8 0 9 0 9 0 9 5 Refrigerant quantity in 2nd circuit kg 5 9 6 7 7 0 7 5 Refrigerant quantity in 3rd circuit kg 7 0 7 5 Informative sticker inside the unit ...

Page 17: ...uator 4 Shaft for bypass damper closing opening 5 Fastening bend 6 Screw 1 2 5 5 6 4 3 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 0 1 Direction of rotation 1 Electric drive fixed to...

Page 18: ...t least twice per year before and after heating season or more Clogged filters unbalance ventilation system air handling 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 chang ing filters Before changing air filters check whether the uni...

Page 19: ...efore air handling unit takes less space and it is more conveni ent to install 1 2 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 2 3 1 VERSO R RHP or VERSO P PCF with...

Page 20: ...f 2 way valve is used additionally it must be installed non return valves to ensure continuous circulation around smaller circuit PPU must be installed as close to the water coil as possible 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 1 Glyc...

Page 21: ...ements are located on the top of section and if allows unit construction 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 22: ...t main switch 1 3 2 2 9 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 23: ...f heater Check the plates of water air heater The air heater is cleaned with hoover from supply air side or with 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 no...

Page 24: ...s Please look at the siphon installation guide On RHP units air intake and outlet openings or hoods must be apart for at least 5 duct diameter distance If outdoor mounted ventilation unit will be stopped in cold temperatures it is needed to install additional air closing dampers in the supply and extract ducts room side It must not allow the warm air from the premises circulate inside of the unit ...

Page 25: ...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 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 1 Max 2 m L L Max 4m Max 60 Ma...

Page 26: ...must perform unloading or lifting operations L L Max 60 VERSO 10 70 VERSO 10 70 VERSO 80 100 Max 4 m VERSO 10 40 It must be ensured that the casing is not crushed or otherwise damaged by straps or ropes during lifting operations Use of special supporting structures traverses is recommended When lifting the unit or section thereof note that their center of gravity may differ from the geometric cent...

Page 27: ...ount 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 28: ...the 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 Comfor...

Page 29: ...t system elements must have separate brackets and must be mounted in a way that their weight is not shifted to the unit casing Air ducts shall be connected to flexible unit connections flanges or air dampers Depending on the AHU size L 20 or L 30 flanges shall be used Special adhesive gasket must be attached to flanges for airtightness of air ducts We recommend installing a solid gasket i e do not...

Page 30: ... 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 ele ments 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 sid...

Page 31: ...ions 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 Hand...

Page 32: ...he 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 It is recommended to connect AHU to the mains via automatic circuit breaker with 300 mA current leakage protection type B or B Earth must be installed according EN61557 BS ...

Page 33: ...lve DX capacity control Hot water Cooling water Heating water pump 230V AC 1A pump 230V AC 1A mixing valve actuator Humidifier Run Alarm Common Common TG3 TG2 TG1 S1 S2 IN5 L L N N N N N 23 24 25 26 27 28 29 30 31 32 33 34 35 36 24V 24V 24V 24V 0 10V 0 10V 0 10V 0 10V C NTC B5 B9 B8 B7 B6 MODBUS RS485 connection OVR control Common Return water Supply air temperature sensor temperature sensor Fire ...

Page 34: ...on 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 ºC 40 ºC 1 2 relative humidity range 20 80 1 3 protection against dripping of water IP X0 2 Control panel connection is provided through a hole in the back or bottom side 3 The panel can be mounted on a flush mounting box or in any other place just screwi...

Page 35: ...ions Energy recovery operation Air heater operation Air cooler operation Supply air tempera ture Extract air tempera ture Supply air volume Extract air volume Supply air humidity Extract air humidity Extract room air quality Under certain conditions the heat pump cannot operate due to low high outdoor air temperature or due to low air flow of the air handling unit For more details see the section ...

Page 36: ...indow Two Comfort and two Economy modes for each of them the user can set air flow and temperature Special mode allows the user not only to set air flow and temperature but also to select blocking or using heating cooling and other functions OFF mode completely turns off the unit Reset settings ECONOMY 1 Supply air flow 1250 m3 h Extract air flow 1250 m3 h Setpoint 20 C Operation modes COMFORT 1 C...

Page 37: ...HU will operate for about 10 min utes on different ventilation intensities while measur ing internal pressure Thus do not open AHU doors do not regulate duct system and do not change any set tings during CF calibration If you wish to stop calibra tion turn off the unit from the control panel 6 5 1 4 Detailed information All temperature sensor readings functioning of separate air handling unit elem...

Page 38: ...night cooling Minimum tempera ture control Functions Settings Overview Scheduling Menu 6 5 2 1 Air quality control Air quality control is designed according to CO2 sensor1 0 2000 ppm air quality sensor VOCq 0 100 air pollution sensor VOCp 0 100 relative humidity sensor 0 100 temperature sensor 0 50 ºC Depending on the type of the selected sensor the value of the air qual ity function to be maintai...

Page 39: ... minimum possible ventilation level of 20 The ventilation compensation function does not operate when summer night cooling function is active 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 outdoor tempera ture C Ventilation intensity 6 5 2 4 Summer night ...

Page 40: ... according to the mode Economy1 switches over the unit to operation according to the mode Economy2 switches over the unit to operation according to the mode Special 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...

Page 41: ...n advance 6 5 2 8 Recirculation control 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 Room air quality1 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 ...

Page 42: ...program Enable Program 1 Operation program Scheduling Operation program Holidays Recirculation schedule 6 5 3 2 Holidays Holiday schedule specifies the time period during which the unit operates under selected mode Possible to set up to ten holidays 6 5 3 3 Recirculation schedule The recirculation level in terms of percentage points and operation time are set Up to 5 recircu lation schedules can b...

Page 43: ...the ventilation system VAV variable air volume control mode The unit will supply and extract an air flow with regard to the ventilation needs in different rooms In case of frequently changing ventilation demands this air volumes maintenance mode signally reduces unit exploitation costs It is possible to use a simplified VAV control function single flow VAV control It means that the per formance of...

Page 44: ...he signal 0 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 m3 h setpoint in the panel 800 m3 h and the B6 input value 7 V the unit will supply con stant air volume of 560 m3 h i e 70 of the set value The same applies to the exhaust air only by B7 input see picture 5 3 b Time Date Time and dat...

Page 45: ...ee connection 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 settings In case you forget...

Page 46: ... units must be provided in ad vance 6 7 4 Inverter direct evaporation cooler control There is an inverter 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 un...

Page 47: ... elimination methods Code Message Possible cause Elimination 14B Service time If unit continuous operation without breaks was 12 months then periodic inspection message appears 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 exchanger the heater and fans 1B 19A Low supply air flow Too high resistance...

Page 48: ...ing equipment fails to oper ate or its capacity is insufficient Check the heating equipment 18A High supply air temperature The heating equipment is not control lable mixing valve or contactor is blocked Check the heating equipment 21A 23A Electric heater overheat The emergency overheating protec tion of the electrical heater has actuated Protection can be reset only by pressing the RESET press bu...

Page 49: ...he rotor drive Check the rotor drive and its messages 110A Rotor drive overload The rotor drive is overloaded Check the condition of the rotor drive and its cooling 111A Rotor motor failure The rotor motor is broken Check the rotor motor and replace it if necessary 112A 113A Rotor motor overload The rotor motor is overloaded Check the condition of the rotor motor and make sure that the rotor is no...

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Page 52: ...jas iela 12A LV 4219 Valmiermuiža Valmieras pagasts Burtnieku novads Tel 371 29 358 145 kristaps zaicevs komfovent com www komfovent lv www komfovent com PARTNERS AT J PICHLER Gesellschaft m b H www pichlerluft at BE Ventilair group www ventilairgroup com ACB Airconditioning www acbairco be CZ REKUVENT s r o www rekuvent cz CH WESCO AG www wesco ch SUDCLIMATAIR SA www sudclimatair ch CLIMAIR GmbH ...

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Komfovent VERSO Pro P, Installation And Maintenance Service Manual

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