Komfovent VERSO-S Manuale

VERSO

S / R / P / RHP / PCF

EN Installation and Maintenance Service Manual

UAB AMALVA we reserve the right to make changes without prior notice 3

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Content

1. VERSO AIR HANDLING UNITS .................................................................................................................... 5

1.1. VERSO Air Handling Units marking.......................................................................................................... 6

1.2. VERSO-S – Air Supply Units .................................................................................................................... 7

1.3. VERSO-P/PCF – Air Handling Units Equipped with Plate Heat Exchanger ............................................. 7

1.4. VERSO-R/RHP – Air Handling Units Equipped with Rotary Heat Exchanger .......................................... 8

1.5. Brief Description of the Unit...................................................................................................................... 8

1.6. VERSO Air Handling Units Composing Options....................................................................................... 9

2. VERSO AIR HANDLING UNITS CONSTRUCTION................................................................................... 10

2.1. Fans........................................................................................................................................................ 10

2.2. Plate Heat Exchanger in VERSO-P/PCF Air Handling Units.................................................................. 10

2.3. Rotary Heat Exchanger in VERSO-R/RHP Air Handling Units............................................................... 12

2.4. Air Dampers............................................................................................................................................ 19

2.5. Air Filters and Filter Change Procedure.................................................................................................. 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 ................................................................... 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 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 on VERSO Air Handling Unit........................................................................... 31

5. ELECTRICAL INSTALLATION MANUAL................................................................................................... 32

5.1. Air Handling Units Sections Connection ................................................................................................. 32

5.2. Electric Power Supply Connection.......................................................................................................... 32

5.3. External Elements Connection ............................................................................................................... 32

5.4. Temperature Sensors Installation ........................................................................................................... 34

5.5. Requirements for the installation of the control panel ............................................................................ 34

5.6. Control panel connection........................................................................................................................ 34

6. OPERATION MANUAL................................................................................................................................. 35

6.1. Unit control.............................................................................................................................................. 35

6.2. Start-up of the unit .................................................................................................................................. 35

6.3. Control panel indication .......................................................................................................................... 35

6.4. Parameters Review ................................................................................................................................ 36

6.5. Unit Programmable Settings................................................................................................................... 37

6.6. Settings of unit modes ........................................................................................................................... 38

6.6.1. Operation modes.......................................................................................................................... 38

6.6.2. Flow control modes ...................................................................................................................... 38

6.6.3. Temperature control modes.......................................................................................................... 39

6.7. Functions of the unit .............................................................................................................................. 39

6.7.1. Air quality control.......................................................................................................................... 39

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

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This symbol indicates that this product is not to be disposed of 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

city ofce, 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 ....................................................................................................................... 43

6.8.2. Holidays........................................................................................................................................ 43

6.8.3. Recirculation schedule ................................................................................................................. 43

6.9. Alarms and status .................................................................................................................................. 44

6.9.1. Actual alarms................................................................................................................................ 44

6.9.2. Alarm history................................................................................................................................. 44

6.9.3. Operation counters....................................................................................................................... 44

6.9.4. Efciency status ........................................................................................................................... 44

6.9.5. Filter status................................................................................................................................... 45

6.9.6. Inspection lightning....................................................................................................................... 45

6.9.7. VAV status .................................................................................................................................... 45

6.10. Settings ................................................................................................................................................ 45

6.11. Control of air handling units through a web browser............................................................................. 46

6.12. Additional control options...................................................................................................................... 46

6.12.1. Combined water coil control....................................................................................................... 46

6.12.2. Multi-level control of direct evaporation cooler........................................................................... 47

6.12.3. Reversal of direct evaporation coolers....................................................................................... 47

6.12.4. Inverter direct evaporation cooler control................................................................................... 47

6.12.5. Additional zone control ............................................................................................................... 47

6.13. Troubleshooting .................................................................................................................................... 48

UAB AMALVA we reserve the right to make changes without prior notice 5

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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.

Inspect the air handling unit carefully to make sure it was not damaged dur-

ing transportation.

More detailed information about the parameters of the VERSO air han-

dling units can be found in the AHU’s printout (technical specications).

Do not switch on an ungrounded air handling unit.

Before switching on the unit, all doors must be closed and locked;

the safety covers should be bolted.

Before switching on the unit, its compartments have to be xed 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.

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 be switched on or off only by the means specied

in the control system.

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 tted, and by-pass/shut-off damper of the plate heat exchanger, if

tted. 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 tted with a protective screen (wire mesh).

Attention:

After initial unit start-up, also every time after replacing of the lters, it’s

necessary to perform clean lters calibration procedure (see 6.9.5 Chap-

ter).

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

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Air damper Fan

Air lter Air cooler

Rotary heat exchanger Compressor

Plate heat exchanger Noise attenuator

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

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1.2. VERSO-S – Air Supply Units

1. Air damper (closing)

2. Supply air lters

3. Fan with electric motor

4. Air heater (water or electric)

5. Air cooler (water or direct evaporation)

6. Frequency inverter

1 2 11 611

9 9 3

1515

16 78

11 13

12 13

1.3. VERSO-P/PCF – Air Handling 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 lters

3. Exhaust air lters

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. Sections connection

12. Sections connection

13. Sealing gasket

14. Connection bolt

15. Frequency inverter

16. Extension module

128

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

V2-C5-15-03-v1

1.4. VERSO-R/RHP – Air Handling Units Equipped with Rotary Heat Exchanger

11 611

15 10 12 15

16 47

1. Air dampers (closing)

2. Supply air lters

3. Exhaust air lters

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. Base frame

11. Sections connection

12. Sections connection

13. Sealing gasket

14. Connection bolt

15. Frequency inverter

16. Extension module

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 thermal 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, ofces,

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 lters, an electric or water

heater, fans and automation control system, to ensure safe and efcient 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 humidity 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 ow 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-ow 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.

11 13

12 13

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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 airow into room is on the bottom of the unit.

IS-2

Air handling unit inspection doors on the left; supplied airow into room is on the bottom of the unit.

IS-3

Air handling unit inspection doors on the right; supplied airow into room is on the top of the unit.

IS-4

Air handling unit inspection doors on the left; supplied airow into room is on the top of the unit.

1.6. VERSO Air Handling Units Composing Options

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

V2-C5-15-03-v1

¨32

ØDSa

ØLA

Ø32

p∆

–+

2. VERSO AIR HANDLING UNITS CONSTRUCTION

2.1. Fans

VERSO air handling units are equipped with radial fans with direct drive.

Motors of the fans with backward curved blades must be controlled by

frequency converters. Frequency set by the frequency inverter cannot

exceed frequency data specied in the print out.

Note: fan type is specied 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: w

pk ∆⋅=∇ where k takes

into account the specic ring characteristics.

Example: If differential pressure of 700 Pa is measured for size 630, the air ow

rate can be calculated: 10080700381 =⋅=∆⋅=∇ w

pk (m3/h).

Cleaning and Inspection of Fans and Fan Space

Polluted fans decrease efciency.

Before performing any inspection work, check whether 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 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 lters 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.

Fan Coefcient – k Fan Coefcient – k

AC EC AC EC

RH22C 47 - RH45C 197 240

RH25C 60 70 RH50C 252 281

RH28C 75 93 RH56C 308 348

RH31C 95 116 RH63C 381 438

RH35C 121 148 RH71C 490 545

RH40C 154 188 RH80C 620 -

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