Komfovent VERSO Standard Manual

VERSO Standard
Units
EN Installation and Maintenance Service Manual

UAB KOMFOVENT we reserve the right to make changes without prior notice
V_20-09 3
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WEEE Directive (2002/96/EC) and your national law. This product should be handed over to a designated
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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
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Content
1. SAFETY REQUIREMENTS..................................................................................................................................................4
2. TRANSPORTATION ..............................................................................................................................................................5
3. BRIEF DESCRIPTION OF THE UNIT..............................................................................................................................7
3.1. Horizontal units ................................................................................................................................................................8
3.2. Vertical units....................................................................................................................................................................11
3.3. Flat units............................................................................................................................................................................15
4. INSTALLATION .....................................................................................................................................................................17
4.1. Maintenance space requirements...........................................................................................................................17
4.2 Location and dimensions of xture elements.....................................................................................................19
5. CONDENSATE DRAIN CONNECTIONS.............................................................................................20
5.1. Water trap installation for a unit section mounted on the suction side.................................................. 20
5.2. Water trap installation for a unit section mounted on the pressure side................................................21
5.3. Section-to-section joints ...........................................................................................................................................21
5.4. Heating coil connection .............................................................................................................................................21
5.5. Ductwork ......................................................................................................................................................................... 22
6. FINAL CHECK BEFORE OPERATING AHU.............................................................................................................. 23
7. MAINTENANCE.................................................................................................................................................................... 23
8. TECHNICAL INFORMATION ......................................................................................................................................... 25
9. UNIT DIMENSIONS.............................................................................................................................................................27
9.1. Horizontal units ..............................................................................................................................................................27
9.2. Vertical units................................................................................................................................................................... 29
9.3. Flat units........................................................................................................................................................................... 30
9.4. Units VERSO S................................................................................................................................................................. 30

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1. SAFETY REQUIREMENTS
• To avoid accidents and/or unit damage, only a trained technician
must carry out the connection.
• The appropriate Personal Protective Equipment (PPE) attire is
worn relative to the operation being carried out.
• Electrical equipment is rated, connected and earthed in accord-
ance with CE regulations.
The air handling unit must be plugged in to an electrical outlet (with earth), which is in good order
and corresponds with all requirements of electric safety. Before starting any operations inside the unit,
make sure that the unit is switched o, and the power cable is unplugged.
• Earth must be installed according EN61557, BS 7671.
• The unit should be installed according to Installation and Main-
tenance Manual.
• Before starting the unit, check correct position of air lters.
• Service maintenance should be carried out only in conformity
with the instructions specied herein below.
• If main cable is damaged, only manufacturer, service team or
trained technician must change it in order to avoid accidents.
• Drilling and using self-tapping screws on the unit casing is pro-
hibited (where it is not provided by the construction), since ca-
bles or tubes inside of the casing may be damaged.

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2. TRANSPORTATION
The air handling units are ready for transit and storage (1 Picture). The unit is packed to prevent dam-
age of the external and internal parts of the unit, dust and moisture penetration.
Corners of the air handling units are protected against the damage – protective corners are used.
The entire unit is wrapped up in protective lm. For transit or storage, units are mounted on timber pal-
lets. The unit is fastened to the pallet with polypropylene packing tape over protective corners.
Vertical and horizontal units ready for transit and storage
1 Picture
When unit is loaded or unloaded by crane, cargo rope is fastened in its designated places.
Forklift truck or hand pallet truck can transport air handling unit as it is shown (2 a, b, c Pictures).
Vertical and horizontal unit transportation by forklift truck, hand pallet truck or crane
2 c Picture
2 a Picture
2 b Picture
2 a Unit is transported by forklift truck on a wooden pallet;
2 b Unit is transported by hand pallet truck on a wooden pallet;
2 c Unit is lifted by crane on a wooden pallet.

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The unit should be examined upon receipt, to ensure that no visible damage has occurred during
transit, and the advice note checked to ensure that all items have been received. If damage or delivery
shortages are discovered, the carrier should be immediately informed. KOMFOVENT should be notied
within three days of receipt, with a written conrmation sent within seven days. KOMFOVENT can accept
no responsibility for damage by unloading from carrier or for subsequent damage on site.
If outdoor mounted ventilation unit will be stopped in cold tem-
peratures, 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 when it is stopped,
otherwise condensate may appear and could damage electronic
components.
If ventilation unis is not intended to be installed right away, it must
be stored in dry and clean environment, in the original packaging. If
unit is installed, but will not be used yet, all duct connection open-
ings must be closed and additional protection from the surrounding
conditions (dust, rain, cold, etc.) must be made.

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3. 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 Verso Standard cover panels are
45–50 mm thick.
• The air handling units are intended for ventilation of medium-sized spaces (eg. single family houses,
oces, etc.), having operating ambient temperature and relative humidity. As standard, the unit is
designed for indoor placement. The operating temperature range for the unit is -30 °C ... +40 °C,
outdoor air temperature.
• Inside of the air handling unit it is integrated heat-exchanger and heater (or cooler), which compen-
sates losses of the heat/cold during ventilation of the premises, thus AHU is not recommended to
be used as main heating/cooling source of the building. AHU may not reach the supply temperature
setpoint if the actual room temperature diers a lot from the desired value, since in that case heat
exchanger capacity will be low.
• 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.
• Before you open the door, the unit must be switched o 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.
• We recommend to leave air handling unit in working mode (minimum 20 percent of power) during
the rst operation year. Due to moisture in building constructions, condensation may occur inside
and outside the air handling unit. Continuous operation of the equipment will signicantly reduce
the risk of condensation.
• 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 ex-
changer frosting may appear. For this reason anti-frost protection function is foreseen in the con-
troller of the Komfovent air handling units. Depending on the type of the air handling unit, dierent
methods of anti-frost protection are available: cold air by-passing, supply air fan speed reducing
and/or integrated preheater. Counter cross w 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-w plate heat exchanger has better features, as the risk of freezing ap-
pears only at -10 °C. The lowest risk 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.
In the units with counter ow or cross ow plate exchangers with-
out integrated preheater, it is necessary to install additional duct
mounted preheater in the outside air intake duct, which will ensure
temperature of the intake air higher than -4 °C.
• If you choose to operate without the primary heater, it is necessary to increase the power of the
secondary heater through a cold air damper.

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3.1. Horizontal units
VERSO R 1000 UH - 1300 UH - 1500 UH - 1700 UH - 2000 UH
Right inspection side R1 Left inspection side L1
A
D
C
B
2
311 4
10
67
12
5
A
D
C
B
23
11 410 6
712
5
VERSO R 2500 H
Right inspection side R1 Left inspection side L1
611 7
10
3 2
12 4
5
6
11
710 32 12
4
5
A
D
C
BA
D C
B
Right inspection side R2 Left inspection side L2
611 7103 2
12 4
5
6
11
710 3 212
4
5
A
D
C
BA
D
C
B

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VERSO R 3000 UH - 4000 UH
Right inspection side R1 Left inspection side L1
C
B
A
D
C
B
A
D
2
311 10
67
12 4
5
23
11
10 6
712
4
5
VERSO R 5000 H
Right inspection side R1 Left inspection side L1
611 7
10
3 2
12 56
11
710 32 12
5
A
D
C
BA
D C
B
Right inspection side R2 Left inspection side L2
611 7103 2
12 56
11
710 3 212
5
A
D
C
BA
D
C
B
VERSO R 7000 UH
Right inspection side R1 Left inspection side L1
A
B
C
D
AB
C
D
36 2
12
1110 5 73 6
212 11 10
57

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VERSO CF 1000 UH - 1300 UH - 1700 UH
Right inspection side R1 Left inspection side L1
A
D
C
B
A
D
C
B
12
34 8
9
68
1211
7
512 3
4
8
96
8
1
2
11 75
VERSO CF 2300 UH
Right inspection side R1 Left inspection side L1
A
A
D
C
B
D
C
B
12
3 8
9
68
12 1175
4
12 3
8 9 6
8
1
211 75
4
VERSO CF 3500 UH
Right inspection side R1 Left inspection side L1
A
D
C
B
C
B
A
D
34 8
12
6892 11 7
51 3
4
8
12 6
8
9
211
75 1
A – outdoor intake air
B – air supplied to the premises
C – air extracted from the premises
D – exhaust air
1 – counter-ow heat exchanger
2 – supply air fan
3 – extract air fan
4 – electric heater
5 – water heater / cooler / DX
6 – outdoor air lter
7 – extract air lter
8 – condensate drainage
9 – air bypass damper
10 – rotary heat exchanger
11 – C5 controller main board
12 – Input cable location

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3.2. Vertical units
VERSO R 1000 UV - 1300 UV - 1500 UV
Right inspection side R1 Left inspection side L1
2
311 4
10
6 7
12
5
AD C BA CD
B
23
11 4
5
10 67 12
A
D
B
C
8
A
D
B
C
8
VERSO R 1700 UV - 2000 UV
Right inspection side R1 Left inspection side L1
2
311 4
5
10
67
12
A B
DC
8
AB
D
C
8
AD C BA D
CB
23
11 410 6
712
5

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VERSO R 3000 UV - 4000 UV
Right inspection side R1 Left inspection side L1
A
D
B
C
8
CB A DAD C B
A
D
B
C
8
2
311 4
10
67
12
5
23
11
4
10
6
712
5
VERSO R 5000 V HW/HCW/DX
Right inspection side R1 Left inspection side L1
A D B
C
8
A D CB
2
35
10
67
11
AD
BC
8
53
210 67 11
A D
C
B

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VERSO R 5000 V HE
Right inspection side R1 Left inspection side L1
A D
BC
A D
C
B
43
210 6
711
A D B
C
A D CB
2
34
10
67
11
VERSO CF 1000 UV - 1300 UV - 1700 UV
Right inspection side R1 Left inspection side L1
A
D
B
C
A
D
B
C
AD C BAD
C
B
32
6 4
8 8 5
9111
712 3
26
4
8 8
59
1
11 7
12

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VERSO CF 2300 UV
Right inspection side R1 Left inspection side L1
A B
DC
AB
D
C
32
6 5
9111
712
8 8
AD C BAD
C
B
3
26
59
1
11 7
12 8
8
VERSO CF 3500 UV
Right inspection side R1 Left inspection side L1
D
A
B
C
D
A
B
C
AD C BCB A
D
32
6 4
8 8 5
12 917
11 3
26 48
85 12
9
1
711
A – outdoor intake air
B – air supplied to the premises
C – air extracted from the premises
D – exhaust air
1 – counter-ow heat exchanger
2 – supply air fan
3 – extract air fan
4 – electric heater
5 – water heater / cooler / DX
6 – outdoor air lter
7 – extract air lter
8 – condensate drainage
9 – air bypass damper
10 – rotary heat exchanger
11 – C5 controller main board
12 – Input cable location

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V_20-09 15
3.3. Flat units
VERSO R 1300 F
Right inspection side R2/L1 Left inspection side L2/R1
D
B
A
C
D
B
AC
10 10 2 47
11
12
36 101024 7 11 12 3 6
VERSO R 2000 F
Right inspection side R2/L1 Left inspection side L2/R1
A
B
D
C
A
B
D
C
10
2 47 11
12 3 6
10 24 7
11 1236
VERSO R 3000 F
Right inspection side R2/L1 Left inspection side L2/R1
B
C
A
D
A
B
D
C
10 247
1211
3610
2
4712 11 3
6

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VERSO CF 1300 F - 1500 F - 1700 F
Right inspection side R2/L1 Left inspection side L2/R1
D
B
A
C
D
B
AC
8114
7
11
12
36 928
1
1
4711 12 3 6
9
2
VERSO CF 2500F
Right inspection side R2/L1 Left inspection side L2/R1
D
A
B
C
D
A
B
C
8
1
47
212 3 6
9
11
8
14
7212
36 911
VERSO S 1300 F - 2100 F
A B
11 4
26
5
VERSO S 3000 F
AB
11
2
56
A – outdoor intake air
B – air supplied to the premises
C – air extracted from the premises
D – exhaust air
1 – counter-ow heat exchanger
2 – supply air fan
3 – extract air fan
4 – electric heater
5 – water heater
6 – outdoor air lter
7 – extract air lter
8 – condensate drainage
9 – air bypass damper
10 – rotary heat exchanger
11 – C5 controller main board
12 – Input cable location

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V_20-09 17
4. INSTALLATION
4.1. Maintenance space requirements
It is recommended to install the air handling unit in a separate room or in the attic on a hard smooth
surface insulated with a rubber mat. The minimum free space in front of the control panel should be not
less than 700mm. The free space over the top of the unit should be at least 300 mm (3.1 a, b Picture). Rub-
ber vibration absorbers must be used when unit is going to be mounted on the wall or ceiling.
The place for the unit must be selected with allowance for minimum access to the unit for mainte-
nance or service and must comply with safety requirements. Opening for inspection can not be smaller
than dimensions of the unit and unit itself must be mounted in a way, that if needed (for example in case
of complicated repair) it can be easily dismounted.
Minimum Maintenance Space
for Horizontal Units
100 mm
min. 700 mm
3.1 a Picture
Minimum Maintenance Space
for Vertical Units
100 mm
min. 700 mm
3.1 b Picture
Verso Standard unit Installation Scheme
view 2
23 12
4 5
view 1
2
1
3
4
1. Air handling unit
2. Air duct connections
3. Sound attenuator
4. Drain siphon (only VERSO CF)
5. Rubber mat (not included in unit set)
6. Hanging bracket
7. Ceiling holder (Included in the unit set)

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VERSO R 1300 F–VERSO R 2000 F
ceiling
7
5 6 12 3
1. Air handling unit
2. Air duct connections
3. Sound attenuator
4. Drain siphon (only VERSO CF)
5. Rubber mat (not included in unit set)
6. Hanging bracket
7. Ceiling holder (Included in the unit set)
3.1 f Picture
Unit holder is made of 2,5 mm galvanized steel sheets according to EN 10142.
* Only for VERSO S 1300 F /S 2100 F without internal electrical heater.
** Only for VERSO S 1300 F/S 2100 F/R 2000 F/R 3000 F without internal electrical heater.
AB
1
232
5
min. 700 mm
oor
3.1 c Picture*
B
A
5
3.1 e Picture**
B
ceiling
A
min. 100 mm
5
B
1
Inspection
trapdoor
223
3.1 d Picture
Verso Standard Maintenance space for unit

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4.2 Location and dimensions of xture elements
Verso S 1300 F
35
823 751
E
E
H1
11
S1
S2
E-E
Ø10,5
B
A
A1
A2
A3
A4
A5
B1
L1 L2
Unit B A A1 A2 A3 A4 A5 S1 S2 H1 B1 L1 L2
mm
VERSO S 2100 F 1034 71,5 750 - - - - 17 30 16 12 36 50
VERSO S 3000 F 1049 75 1010 - - - - 17 30 16 12 36 50
VERSO R 1300 F 974 82 400 450 400 - - 17 30 012 36 50
VERSO R 2000 F 1244 91 400 400 280 400 400 17 30 49,5 12 36 50
VERSO R 3000 F 1243 155 560 730 560 - - 16 30 52 13,5 43,5 70
VERSO CF 1000 F 1133 75 770 730 - - - 16,5 30 49,5 13,5 43,5 70
VERSO CF 1300 F 1133 75 770 730 - - - 16,5 30 49,5 13,5 43,5 70
VERSO CF 1500 F 1133 75 770 730 - - - 16,5 30 49,5 13,5 43,5 70
VERSO CF 2500 F 2034 99 500 650 500 - - 17 30 52,5 12 36 50

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5. CONDENSATE DRAIN CONNECTIONS
All condensate drain connections must be correctly trapped. Incorrect trapping can result in ood-
ing within the unit and consequent ooding of the immediate area. Fill the drain trap with water before
starting up the unit.
All drain lines should be insulated where passing through any space where damage from condensa-
tion drip might occur. If the unit is installed in unheated premises the condensate pipe should be heat-
insulated and heated with heating cable.
A condensate pipe and a drain trap
Drain scheme of Vertical Unit
view 1
D = 15
4 a Picture
Drain scheme of Horizontal Unit
view 2
D = 15
4 b Picture
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.
5.1. 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-atmos-
pheric pressure inside the unit,it is very important to correctly install the water trap. Because of that rea-
son condensate can be hardly eliminated from the air handling unit and the technical premise may get
covered with condensate. Height H1must be at least equivalent in mm to half of the negative pressure
inside the unit in mm water gauge. Height H2must be at least equivalent in mm to the negative pressure
inside the unit in mm water gauge.
Ø 32
25-240106
DN 40
95
H1, H2
140-310
Condensate Condensate
H2
H1