AHU Catalogue

VERSOHeat Recovery Air Handling Units

Plug & Play

Energy Saving

Smart Design

Reliable & Safe

AHU N˚: 07.09.356Range: VERSO

2 AMALVA UAB reserves the right to introduce changes of parameters and sizes in the process of improvement of the air handling units.

KOMFOVENT VERSO units have nine main sizes for the air flow from 1000 m3/h to 34 000 m3/h. Units can be with heat recovery or just air supply units. VERSO ensures best performance and required operation parameters being design in very compact dimensions: each section size allows brin ging it through a standard 900 mm wide door opening. For customers’ convenience air heaters, coolers and dam pers are mounted outside the unit as a separate section that gives flexibility in mounting and saving the installation area. Indoor and outdoor mounting is possible. Units have a complete integrated automatic control, ensu ring lower exploitation and installing costs on site, just PLUG & PLAY.

Features and benefits of VERSO units• Allunitsarecompletelyprewiredandhaveanintegratedautomaticcontrol• Widechoiceofcontrolfunctionsisalreadyincludedasastandardfeature• Extremelysilentinoperation• Lowenergyconsumption• EnergyefficiencytestedandapprovedbyEUROVENT• Fansarebalancedstaticallyanddynamicallytoavoidvibrationanden-

sure silent operation• Allcasingsarepowderpainted• Steadybaseframewithon-siteregulationpossibilities• Easyandquickassemblingon-site

VERSO Air Handling UnitsVERSO-Sair supply units

VERSO-Rair handling units with a rotary heat exchanger

VERSO-Pair handling units with a plate heat exchanger

VERSO-RHPair handling units with a rotary heat exchanger and a heat pump system

VERSO-PCFair handling units with a counter cross-flow plate heat exchanger

AHU N˚: 07.09.356Range: VERSO

3AMALVA UAB reserves the right to introduce changes of parameters and sizes in the process of improvement of the air handling units.

Purpose:These are universal air handling units intended for ventilating various buildings:• Serviceoffices• Healthandmedicalbuildings• Educationalinstitutions• Industrial,manufacturingfacilities

All technical information specified in this brochure is approximate and intended for a general review of VERSO air handling units group. For more accurate figures, use our VERSO air handling unit selection software.

DesignHeat recovery units‘ casing is comprised of three main sections. Two side sections are completely sym-metrical fan and filter sections that allow to choose desired design options and viewing side. The middle section is for a heat exchanger. Supply air unit casing is composed of symmetrical filter and fan sections. For customer convenience air heaters, cooler sections are mounted outside the unit.

ConvenientUnit design assures effective transportation and easy in-stallation. Separate parts are compact, without projection parts; therefore it is easy to transport them to a designated area of the building, where later they are assembled. Fin-ished air handling units are delivered to the customer in packagesthatarereadytobetransported.

DurableUnit doors aremounted with firm and aesthetic-lookinghingesandarelockedwithconvenientandelegantlocks.Door seals are made of firm and elastic rubber having an air gap. They are mechanically fastened to the door and are long lasting and hermetic.

Universal Unit walls are made of galvanized steel sheets with 50 mm thickness insulation. This assures not only effective heatand noise insulation, but also a high level of fire resistance.Air handling unit accessories – external grilles for supply/exhaust vents, hood and roof – allow installing units out-side.

User friendlyFilters, fans, heat exchangers, coolers and other compo-nents are easily accessible during use; if necessary, they can be easily replaced. A new filter clamping mechanism, not only assures tightness, but also essentially simplifies filter change procedure.


Rotary heat exchanger

Counter flow plate heat exchanger in dry conditions

Double plate heat exchanger in dry conditions

84%82%80%

Counter flow plate heat exchanger Used in VERSO-PCF series units.Temperatureefficiencyfactor–upto92%inwetconditionsandupto82%indryconditions.The plate heat exchanger is equipped with automatic by-pass. Aluminium plates are made of an aluminium alloy re-sistant to sea water.

News & improvementsIncreased efficiency for higher energy savings

Double plate heat exchangerUsed in VERSO-P series units.Temperatureefficiencyfactor–upto92%inwetconditionsandupto80%indryconditions.Aluminium plate-type heat exchangers are used in the units. Aluminium plates are made of an aluminium alloy resistant to sea water.

Rotary heat exchangerUsed in VERSO-R series units.Temperatureefficiencyfactor–upto84%.Possible wave height: 1.5 mm, 1.7 mm, 2.1 mm.Types of rotary heat exchangers:• Aluminium• Hygroscopic• AluminiumwithepoxypaintedfoiledgesAluminium foil is made of an aluminium alloy resistant to sea water. Rotary heat exchanger rotation speed is controlled by a frequency converter, according to the air temperature. The heat exchanger can be ordered with an installed purge section.

New


No. Number of compressors

Cooling capacity, kW

Heating capacity, kW

10 1 7,5 720 1 9,5 8,530 1 12,5 1240 2 20 1950 2 30 2960 2 42 3970 3 47 4080 3 54 5090 3 61 67

VERSO series air handling units with air source heat pumps aremoreefficient inheat recoveryandcouldbeusedasa centralair conditioner ina coolingmode.Wecanofferunitsfrom7to50kWcapacityinheatingandfrom7.5to 54 kW capacity in coolingmodes.The heat pump is con-trolled by a microprocessor that controls supply air param-eters and ensures efficient energy use. The refrigerationsystem of the heat pump includes a variable capacity scroll compressor that enables precise temperature control and

EC FansHighlyefficientinalloperatingareas,ECmotorsareavail-able in all types of VERSO units and correspond to the IE3 premiumefficiencylevel.Highefficiencyisdeterminedbylow energy consumption, high efficiency factor and thebest values of the SFP factor. By using EC fans in VERSO units the following advantages are achieved:• Extremelyhighefficiencyupto92%• Valuableenergysavingupto30%comparingwithAC• Integratedmotorcontroller,noneedforafrequency

converter• Verysmoothandsilentoperation• Long-life

eC fans

inside

efficientenergyuse.ForbestheattransferCu-Alevaporatorsand condensers are used. In all heat pumps, the R410A refrig-erant, which has a zero ozone depletion potential, is used. A controlled 4-way valve automatically switches between cooling and heating modes. The construction of the heat pump enables to do a defrost cycle by not turning the unit off. Defrost cycles are controlled by a microprocessor, that ensure defrost cycle start on demand. Components used in theunitsensuresafeandefficientworkoftheheatpumps.

Integrated heat pump with a rotary heat exchanger

Heat pump integrated


Control panel• Biggraphicdisplayandtouchbuttons• Simpleandeasycontrol• Indicationofunitparametersandactivefunctions• Unitfailureandstatusindication• Selectionofthelanguageandmeasuringvalues

C5 functionality

New Control System C5

C5 is a brand new and complete operating solution. This controller comprises the latest technologies in communication and functionality of KOMFOVENTairhandlingunits.Withitscontemporarydesignanduser-friendly interface, C5 offers the most convenient way to use any of VERSO features.Control and monitoring of the system can also be remotely performed via an application on the web, whichmakesairhandlingevenmoreeasy,efficientandprofitable.

• Heatexchangerthermalefficiencyindication• Temperaturecompensatedairflows• SFPindicationforfans• Operationcountersandenergyconsumptionindication• Indicationoffiltersclogging(in%)• Integratedwebserver

Energy savingEnergy recovery control

Summer night cooling

Outdoor compensated ventilation

Operation on demand

Modulated recirculation according to CO2, temperature or time schedule

Circulation pumps control on demand

ComfortMin. temperature control

Air quality control

Air humidifying and dehumidifying control

Ventilationzonecontrol(upto3zones)

Boosted cooling

OperationWeeklyprogramoperation

Holiday scheduling

“Override” control of AHU via external contact

Combined heating & cooling control

Heat pump control

Up to 30 AHU’s control from one panel

SafetyCleaning and warm-up of the rotary heat exchanger

Pumps start-up in a standby mode

Internal and external fire alarms

Dew point control

Preheater control

Intelligent self-diagnostic and protections

New


ModesOperation modes: Comfort / Economy / Special

Temperature control modes: Supply / Extract / Room

Flow control modes: CAV, Single flow VAV, Two-flow VAV

ConnectivityEthernet

RS-485

ProtocolsModbus RTU

Modbus TCP

Bacnet

System components

Main moduleSpecially designed for installation in theheat exchanger (middle) sectionof the air handling unit. A controller and an external elements connection board – two-in-one.

Control panelCan be installed in any convenient place for the user. Designed for remote control of the air handling unit and setting and monitoring para meters of the controller. The length of the con-necting cable can reach 150 m.

Extension modulesSpecially designed for installation in a fan section of the air handling unit. Connection to internal elements. Inte-grated pressure sensors on the board.

Temperature sensorsMeasuring range -50°C…+120°C. 10 kOhm (+/-1%) NTC type sensingelement.

Remote controlMonitoring and control using the Internet browser

Different access levels

Firmware update via the Internet

Application software for Android OS

Control panel

Main module

Extension module 2

Extension module 1

Exhaust temperature sensor

Outdoor temperature sensor

Supply temperature sensor

Extract temperature sensor


Fans

In VERSO series units plug type fans are used, therefore, units are silent and use electricity effectively. The fans are balanced statically and dynamically, based on the ISO 1940 standard; therefore, unit vibration is minimal and meets all requirements.

Whilerunning,fansexhibitthefollowingqualities:•Veryhighefficiencycoefficient.•Frequencyconverters ensure an optimal capacity.•Goodacousticperformance.•Longevity:afanisdirectlyconnectedtotheelectric

motor; therefore, there is no a belt gear that simplifies maintenance.

•Thereisapossibilitytoinstallanairflowmeasuringdevice.

Fans are equipped with three-phase 400 V motors and are controlled with a frequency converter.Safety category – IP55 according to IEC 34-5. Windingsinsulationcategory–F.Maximum operating temperature is 40°C.

Fans are made of aluminium, steel or high performance composite materials painted in blue RAL 5002. A new de-signoftheimpellercanreachupto73%ofefficiency.Analuminium or high performance composite impeller has less weight and vibration force on motor bearings.

Heat Exchangers

VERSO air handling units may generate different energy efficiencylevelswithfourmaintypesofheatexchangers.The most advanced one is a rotary heat exchanger with the thermal efficiency of 84% and theminimum risk offreezing. A counter cross-flow plate heat exchanger and a double plate heat exchanger are also highly effective andmay have efficiency coefficients up to 92% or 82%correspondingly, however, they are very sensitive to low outdoor temperatures. A standard plate heat exchanger complete the range of the heat exchangers with the maxi-mumefficiencyof70%.Aluminiumisusedasamaterialforthe exchangers.

Anti-frost precautionsUnder conditions when the outdoor air temperature is low andhumidity ishigh, the riskofheatexchanger frostingmay appear. Depending on the type of recovery, differ-ent methods of anti-frost protection are available: cold air by-passing, or/and supply air fan speed reducing. For an extremely low outdoor air temperature the duct mounted electric preheater is recommended. The counter cross-flow heat exchanger is even more sensitive for low out-sideairtemperatures,astheriskoffrostingappearsinthetemperature range from 0 to -5°C and below. A standard aluminium cross-flow plate heat exchanger has better fea-tures,astheriskoffreezingappearsonlyat-10°C.Thelow-estriskandthehighestresistancetocoldoutsideair isacompetitive feature of the rotary heat exchanger, as it does not freeze even at the temperatures of -30°C if the humi-dity level of the air is appropriate.

Design


Air Dampers

Closing air dampers installed in the air handling units are produced from aluminium or galvanized steel blades with rubber sealing.Connectors – L20.For unit sizes 60, 70, 80 – L30.Dampers are located outside the unit; they can be made with an insulated damper casing.

Air Filters

FromG4toF9classsyntheticorfiberglasspockettypefilters are used.•Standard length of G4 class filters – 200 mm.•Standard length of M5 class filters – 300 mm.•Standard length of M6-F9 class filters – 500 mm.The filter clamping mechanism ensures tightness and simplifies a filter replacement procedure.

Air Heaters

Water Air HeatersNormallyusedwith aluminiumfins (spacing3or 4mm)and copper pipes. Can be made with a thread joint to con-nect a freezing sensor. Insulated with a mineral wool heater section mounted on the outside of the unit – room space is saved this way; it is also more convenient to mount it. •Maximumoperatingpressure–21bars.•Maximumwatertemperature–+100°C. (onspecialorder–upto+130°C).• Heatedairtemperature–upto+40°C.

Electric Air HeatersThree-phase(400V/50Hz)stainlesssteelheatingelementsare used in production. A three level protection ensure protection from overheating.Protection class IP54 in accordance with IEC 34-5.Heated air temperature – up to +40°C.Note: exact electric air heater measurements and other information can be found in VERSO air handling units selection software. The electric heater has its own supply voltage.


No. Length, mm

Efficiency dB when frequency Hz63 125 250 500 1000 2000 4000 8000

10900 10 19 27 31 33 32 27 171200 13 26 35 42 44 43 36 22

20900 6 13 17 21 22 21 18 111200 8 17 23 27 29 28 24 15

30900 7 13 18 22 23 22 19 121200 9 18 24 29 30 30 25 15

40900 6 13 18 21 22 21 18 111200 8 17 23 27 29 28 24 15

50900 6 12 17 20 21 21 18 111200 8 16 22 27 28 27 23 14

60900 8 15 21 25 26 25 21 131200 10 20 28 33 34 34 28 18

70900 7 14 20 23 25 24 20 131200 10 19 26 31 33 32 27 17

80900 7 14 19 23 24 23 20 121200 9 18 25 30 32 31 26 16

90900 7 14 20 23 25 24 20 131200 10 19 26 31 33 32 27 17

The efficiency of the channel noise reduction section, in dB

Air Coolers

Water Air CoolersNormallyusedwithaluminiumfins(spacing2,5or3mm)and copper pipes. Insulated with a mineral wool heater section mounted on the outside of the unit – room space is saved this way and it is more convenient to mount it. Maximum operating pressure – 21 bars.The air cooler section is assembled with a stainless steel sloping drain tray and a water trap.

Direct Evaporation Air CoolersNormallyusedwithaluminiumfins(spacing2,5or3mm)and copper pipes. Insulated with a mineral wool heater section mounted on the outside of the unit – room space is saved this way; it is also more convenient to mount it. Maximum operating pressure – 42 bars.The cooler section is assembled with a stainless steel slop-ing drain tray and a water trap. The power of the direct evaporation air cooler can be divided into steps. It is nec-essary to indicate this upon order.

Noise Reduction Sections

To avoid excessive pressure losses inside the air hand-ling unit, duct mounted sound attenuation sections are of-fered for VERSO units.The sound attenuation section of 900 mm length will re-duce the noise to air ducts by 15 to 20 dB, a longer sec-tion of 1,200 mm in length – by 20 to 25 dB. The width and height of these sections correspond to air handling unit dimensions.The baffler-type sound absorber is installed inside this sec-tion. Bafflers are filled with special acoustic mineral stone wool and are covered by non-woven glass fibre felt certi-fied to be inside the air duct. Mineral wool can be replaced with polyester wool in the case of a special request.Splitters of the absorber can be easily removed from the section for dry or semi-wet washing for ventilation hygiene purposes.


Casing and Outside Grilles

Casing and outside grilles can be additionally mounted on the supply and exhaust vents of outdoor air handling units.

Roof

A roof with water drainage can be additionally installed on outdoor air handling units.

Height Adjustable Feet

The construction frame of the air handling unit with height adjustable feetmakes itmuch easier to level theunit on the site.

DoorLocksandHandles

Easy to use door locks and handles ensure safe unitmaintenance.


9080%75%60%54%

8080%75%60%54%

7080%75%60%56%

6082%74%62%58%

5082%75%61%57%

4083%75%63%59%

3083%75%64%60%

2084%75%64%60%

1086%75%57%50%

0.28 1.39 2.78 4.17 5.56 6.94 9.44 m3/s

1 000 5 000 10 000 15 000 20 000 25 000 34 000 m3/h

75% 63%

Specifications:– cooler/heater– rotary heat exchanger–plateheatexchanger(dryconditions)– air volume velocity through the cooler > 2.5 m/s– air volume velocity through the cooler > 3 m/s–temperatureefficiencyoftheheatexchanger

Size B H L1.1 L1.2 L3 b h A10 1000 490 705 705 710 900 400 12520 1150 585 705 705 710 1100 500 12530 1300 660 705 705 710 1200 600 12540 1500 740 705 842 710 1400 700 12550 1700 890 705 842 710 1600 800 12560 1900 960 705 979 710 1800 900 12570 2100 1085 705 979 710 2000 1000 12580 2300 1185 705 1300 710 2200 1100 12590 2610 1350 705 1300 710 2500 1200 125

L2**– 165...370 mm depending on the selected air heater. Note: the electric air heater section length is noted in the selection program of VERSO air handling units.

VERSO-S

L1.1 L2** L3 L1.2

bxh

BxH

A

bxh

DimensionsModern air handling unit proportions allow reaching better technical parameters: a lower air flow velo-city inside the unit, better acoustic data. The shortest length between analogues ensures compactness; therefore air handling units are easier to design and install.

SizesThe capacity of the air handling units ranges from 1 000 to 34 000 m3/h.Theirmaximumworkingpressureis900Pa.Ninestandard sizes of units are available. Thus, it is possible to choose a unit of the optimal size according to the customer’s needs.


9080%75%60%54%

8080%75%60%54%

7080%75%60%56%

6082%74%62%58%

5082%75%61%57%

4083%75%63%59%

3083%75%64%60%

2084%75%64%60%

1086%75%57%50%

Size B H L1 L1.1 L1.2 L1.3 L3 b h A10 1000 1000 1958 618 290 432 710 700 300 12520 1150 1150 2244 751 290 432 710 900 400 12530 1300 1300 2244 751 290 432 710 1000 500 12540 1500 1520 2264 751 310 432 710 1200 600 12550 1700 1715 2512 885 310 432 710 1400 700 12560 1900 1920 2647 885 310 567 710 1600 800 12570 2100 2100 2784 885 310 704 710 1800 900 12580 2300 2420 3771 1250 510 841 710 2000 1000 12590 2610 2650 4051 1250 510 1041 710 2200 1100 125


L1.1 L1.2 L1.3 L1.1 L2** L3

L1

bxh

BxH

A

bxh

bxh

VERSO-R

Size B H L1 L1.1 L1.2 L1.3 L3 b h A10 1000 1000 2511 618 422 432 710 700 300 12520 1150 1150 3074 751 570 432 710 900 400 12530 1300 1300 3074 751 570 432 710 1000 500 12540 1500 1520 3074 751 570 432 710 1200 600 12550 1700 1715 3618 885 707 432 710 1400 700 12560 1900 1920 4025 885 845 567 710 1600 800 12570 2100 2100 4162 885 845 704 710 1800 900 12580 2300 2420 5261 1250 1150 841 710 2000 1000 12590 2610 2650 5841 1250 1150 1041 710 2200 1100 125

L2**– 165...370 mm depending on the selected air heater. Notes: size 20÷80 plate heat exchanger section is made of two parts. Size 10 - of one part.The electric air heater section length is noted in the selection program of VERSO air handling units.

VERSO-P

L1.1 L1.2 L1.2 L1.1 L3

L1

L2**

bxh

bxh

bxh

BxH

A

L1.3


Size B H L1 L1.1 L1.2 L1.3 L3 b h A10 1000 1000 2511 618 570 432 710 700 300 12520 1150 1150 3074 751 645 432 710 900 400 12530 1300 1300 3074 751 720 432 710 1000 500 12540 1500 1520 3074 751 720 432 710 1200 600 125

L2**– 165...370 mm depending on the selected air heater. Notes: size 20÷80 plate heat exchanger section is made of two parts. Size 10 - of one part.The electric air heater section length is noted in the selection program of VERSO air handling units.

VERSO-PCF

L1.1 L1.2 L1.2 L1.1 L3

L1

L2**

bxh

bxh

bxh

BxH

A

L1.3

Size B H L1 L1.1 L1.2 L3 b h A10 1000 1000 2136 618 900 710 700 300 12520 1150 1150 2402 751 900 710 900 400 12530 1300 1300 2402 751 900 710 1000 500 12540 1500 1520 2402 751 900 710 1200 600 12550 1700 1715 2670 885 900 710 1400 700 12560 1900 1920 2670 885 900 710 1600 800 12570 2100 2100 2670 885 900 710 1800 900 12580 2300 2420 3500 1250 1000 710 2000 1000 12590 2610 2650 3500 1250 1000 710 2200 1100 125


L1.1 L1.2 L1.1 L2** L3

L1

bxh

BxH

A

bxh

bxh

VERSO-RHP


Silencer

Size B H H1 L1.1 L1.2 b h A10 1000 490 510 900 1200 700 300 12520 1150 585 565 900 1200 900 400 12530 1300 660 640 900 1200 1000 500 12540 1500 740 760 900 1200 1200 600 12550 1700 890 810 900 1200 1400 700 12560 1900 960 940 900 1200 1600 800 12570 2100 1085 1015 900 1200 1800 900 12580 2300 1185 1115 900 1200 2000 1000 12590 2610 1350 1260 900 1200 2200 1100 125

L1.1(1.2)

bxh

bxh

bxh

bxh

BxH

1Bx

HA

IS-1 Air handling unit viewing doors are on the right; the supplied airflow is at the bottom of the unit.

IS-2 Air handling unit viewing doors are on the left; the supplied airflow is at the bottom of the unit.

IS-3 Air handling unit viewing doors are on the right; the supplied airflow is at the top of the unit.

IS-4 Air handling unit viewing doors are on the left; the supplied airflow is at the top of the unit.

Composing options:

AoutdoorintakeB supply air C extract indoor D exhaust air

AA

AD

A AB

B B BB

B B

D

D

D

D

B B

B B

C

CC

CA

A

A

A

D

D

D

C C

C C

B

C

C C

CD

B

BB B B

B

A

A

A

A

A

D

D

D

More specific information about a specific unit can be obtained using VERSO air handling unit operating program, which can be downloaded from the webpage www.komfovent.com.

KOMFOVENT producer:

UAB AMALVA Ozo Str.10, LT-08200 Vilnius, [email protected]

2013

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