Komfovent DOMEKT ReGO 400VE-B Manual

DOMEKT REGO 400VE(W)-B
Series Air Handling Units
Installation and Maintenance Service Manual
EN

2
Content
Safety Requirements ..................................................................................3
Transportation ..................................................................................3
Brief Description of the Unit ..................................................................................5
Installation ..................................................................................6
Maintenance ................................................................................11
Technical Information ................................... ............................................13
Ordering Key ................................................................................15
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
cooperation 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.

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Installation and Maintenance Service Manual
We reserve the right to make changes without prior notice.
1 Picture
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 accordance 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 off, and the power
cable is unplugged.
• Earth must be installed according EN61557, BS 7671.
• The unit should be installed according to Installation and Maintenance 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.
Transportation
The air handling units are ready for transit and storage (1 Picture). The unit is packed to prevent damage of the
external and internal parts of the unit, dust and moisture penetration.
The unit is packed to box after that 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 mount-
ed on timber pallets. The unit is fastened to the pallet with polypropylene packing tape over protective corners.
Air handling unit ready for transit and storage

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Installation and Maintenance Service Manual
We reserve the right to make changes without prior notice.
2 a Picture
Forklift truck or hand pallet truck can transport air handling unit as it is shown ( 2 a, b Pictures).
Air handling unit transportation by forklift truck or hand pallet truck
2 a Unit is transported by hand pallet truck on a wooden pallet;
2 b Unit is transported by forklift truck on a wooden pallet.
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. AMALVA should be notied within three days of receipt,
with a written conrmation sent within seven days. AMALVA can accept no responsibility for damage by unloading
from carrier or for subsequent damage on site.
If the unit is not to be installed immediately, it should be stored in a clean, dry area. If stored externally, it should
be adequately protected from the weather.
2 b Picture

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Installation and Maintenance Service Manual
A. Outdoor intake
B. Supply air
C. Extract indoor
D. Exhaust air
E. Kitchen hood connection (by-pass – extraction without heat recovery)
3 Picture
Brief Description of the Unit
• The air handling units are intended for ventilation of small and medium-sized spaces (eg. single family houses,
ofces, etc.), having operating ambient temperature and relative humidity. The unit is intended to be in-
stalled in the kitchen or other domestic premises. Mineral wool is used for thermal insulation and sound
attenuation. Units cover panels are 25 mm thick. As standard, the unit is designed for indoor placement. The
operating temperature range for the unit is -300C ... 400C, 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.
• DOMEKT REGO 400VE(W) (3 Picture) series units are equipped with a rotary heat exchanger, air lters, an
electric air 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.
DOMEKT REGO 400VE(W)-B Air Handling Unit Scheme
1. Rotary heat exchanger
2. Supply air lter
3. Exhaust air lter
4. Supply fan
5. Exhaust fan
6. Electric air heater *
7. Automation control system * AHU REGO-400VW-B is suitable for use with water duct air heater.
Note: to reduce the noise level to the premises, it is recommended to install sound attenuators in the ducts.
ECB
5
E
B
D
A
C
2
3
4
71 6
C
B
E
D
A
DABCEAD
3
4
5
2
We reserve the right to make changes without prior notice.

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Installation and Maintenance Service Manual
We reserve the right to make changes without prior notice.
5 Picture
Installation
Unit Inspection
Before installing the unit, inspection must be carried out. Unit has removable panels from its both sides (4 Picture).
All internal unit components can be extracted from inspection side.After choosing desired inspection side, it is ne-
cessary to check if rotary heat exchanger, electric heater and automatics box are positioned correctly. Rotary heat
exchanger and automatics box are maintained from inspection side. Picture 4 shows unit with left-hand inspec-
tion side. To get unit with right-hand inspection side, internal unit elements must be turned round. Remove both
unit’s panels, which afterwards must be counterchanged to have possibility of other side inspection. Start with
electric heater (5 Picture). After removing the cover of the electric heater, electrical connection with the rotor must
be disconnected.
unplug
plug
Taking off the switch from the unit it is needed to take it apart from each other and check if the contacts are
fouled.
4 Picture

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Installation and Maintenance Service Manual
8b Picture
7 Picture
unscrew
disconnect
Afterwards electric heater may be extracted, turned round and put in by its other side (6 Picture). Then rotary
heat exchanger and automatics box must be turned round being already disconnected from all connections and
with unscrewed grounding wires (7 Picture).
pull and screw
Screw off and remove top covers of automatics and by-pass. Afterwards they must be counterchanged and
screwed again (8 a, b Pictures).
6 Picture
8a Picture
We reserve the right to make changes without prior notice.

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Installation and Maintenance Service Manual
We reserve the right to make changes without prior notice.
9 Picture
10 Picture
Disconnect fans’ connections; pull out air temperature sensor together with a rubber plug. Loosen all wires
xed in the partitions with rubber gaskets and extract rotary heat exchanger (9 Picture).
disconnect
pull
While unit casing is disassembled, all protective gaskets from the unit back side must be removed on its front
one (10 Picture). Then assemble in inverse way to get the unit of opposite inspection side.
Before inserting rotary heat exchanger, one by-pass cover which is located in it must be removed. Cover is
unscrewed with six screws. This is done to have correct by-pass air ow direction. Opened vent must always be
near exhaust ow fan (11 Picture).
Note: There are two by-pass covers by default. When connecting the by-pass, one cover must be removed.
11 Picture

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Installation and Maintenance Service Manual
12 Picture
13 Picture
14 Picture
Insert rotor by its correct side; put on protective gaskets to their places (12 Picture).
When changing inspection sides, be sure fans’ connecting plugs are not counter-
changed. Fans are connected by the same connections. In case if unit is right-hand
side, fans wires are crossed over in rotary heat exchanger’s electronics place. Also
by crossing the wires, correct air temperature sensor position will be achieved.
Then electric heater is connected (13 Picture), cables must be carefully connected and xed to appropriate
places. Do not forget to screw on grounding wires and make connections in indicated places.
Picture 14 shows unit from right-hand inspection side.
Do not forget to put on elements for hanging before screwing on back panel.
Use the same instruction of changing the inspection side of AHU, but without the notes of electric heater.
We reserve the right to make changes without prior notice.

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8
2
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Installation and Maintenance Service Manual
We reserve the right to make changes without prior notice.
15 Picture
16a Picture
The place for the unit should be selected with allowance for minimum access to the unit for maintenance and
service inspection. The minimum free space in front of the inspection panel should be not less than 600 mm. It
is recommended to install the air handling unit in a separate room (15 Picture).
Unit brackets’ positions
B
A
641
604
57
662
30
300
600
30
O125 O160
Pictures 16 a and 16 b show unit’s upper and bottom xing element.
1. Screw 4. Hanging bracket 2 7. Self tapping screw
2. Wall plug 5. Bolt M5 8. L-shape bracket
3. Hanging bracket 1 6. Gasket 9. Washer M5 DIN9021
Final Inspection
After installation of the unit, a thorough inspection should be carried out. This should include inspecting the
inside of the unit and removing debris and tools, which may have been left behind by on site contractors. Replace
any panels, which may have been removed and close all access doors, ensuring that the door sealing gaskets
have not been damaged.
16b Picture
3
21
4
5
6
9

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Installation and Maintenance Service Manual
17 Picture
Heating coil connection* and the pipe work should be done in order to ensure the space for maintenance and
service work. When carrying out the installation of heater pipes, make sure that hot water supply is completely
disconnected. Before start-up of the air handling unit, the heater system should be lled in with water. 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 like. Glycol is highly dangerous to consume and can cause fatal poisoning
or damage the kidneys. Contact a doctor! Avoid breathing glycol vapour in conned spaces. If you get glycol in
your eyes, fush them thoroughly with water (for about 5 minutes).
*If water heater build in.
When operating air handling unit in the temperatures lower than 0°C, it is
necessary to use glycol additionally or assure the reversible heating agent
temperature more than 25°C.
It is important to maintain air heaters and coolers cleanliness; that is to change
lters installed in the air handling unit on time. If the air heater or cooler gets dirty,
to perform periodical cleaning.
Maintenance
It is recommended to carry out routine maintenance of the air handling unit KOMFOVENT DOMEKT
REGO 400VE(W) 3 – 4 times per year. Extracting unit elements (see 17 Picture). Cables must be disconnected
when extracting electric heater and rotary heat exchanger.
During inspection, the following operations should be performed:
1. Rotary heat exchanger check. 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 ef-
ciency of rotary heat exchanger will fall down. To reach maximal efciency, rotor must turn at least 6 times
per minute. Polluted heat exchanger will decrease efciency. Cleaning can be performed by compressed
air or soapsuds. Check out water falling on the rotor’s electric motor.
Rotor cleaning. If rotor cleaning by compressed air is not effective, it can be washed with soapsuds
(18 Picture), or if needed – use degreasing soak for metal (aluminum) cleaning. Check out water falling
on the rotor’s electric motor and other automatics’ elements. In case if water got into details, they must be
urgently dry up. Leave rotor to dry in a warm place. Rotor can be connected only when it is absolutely dry.
We reserve the right to make changes without prior notice.

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Installation and Maintenance Service Manual
We reserve the right to make changes without prior notice.
Rotor cleaning
2. Fans check (once per year). Polluted fans decrease efciency.
Before performing any inspection work, check whether the unit is switched off
from the electric power supply.
Fans should be carefully cleaned with textile or soft brush. Do not use water. Do not break balance. Check
if fan freely rotates and is not mechanically damaged, if impeller does not touch suction nozzles, fan does
not spread noise and mounting bolts are screwed.
3. Air heater check. Check if electric air heater is properly xed, wires connections are not damaged and heat-
ing elements are not bent. 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. They can
be damaged or bent due to uneven heat or uneven and turbulent air direction. Check if electric air heater is
clear of unnecessary things and heating elements are not clogged, because this can cause unpleasant smell
or in the worst case – dust can start burning. Air ow through the air heater should be greater than 1,5 m/s.
Heating elements can be cleaned with hoover or wet textile.
4. Airltercloggingcheck. Change air lters when air lter clogging is indicated. We recommend to change
lters at least twice per year: before and after heating season, or more*. Filters are one time used. We do
not recommend cleaning them. Stop the air handling unit before changing lters.
*Clogged lters unbalance ventilation system, air handling unit uses more power.
18 Picture

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Technical Information
Specications
REGO 400VE(W) Dimensions AC VE/VW EC VE/VW
Nominal air ow m3/h 300 300
Unit weight kg 40 41
Heater capacity kW 1,0 / 1,2 1,0 / 1,2
Fans input power W 2x137 2x70
Supply voltage V / Hz ~230 / 50 /1 phase ~230 / 50 /1 phase
Maximal operating current A 5,75 / 1,41 5,15 / 0,76
Ducts connection mm 160 160
Thermal efciency of rotary heat exchanger up to % 82 82
Energy recovery of rotary heat exchanger up to kW 3,5 3,5
Filters
Supply air Exhaust air Dimensions
Filter class F5 / F7 F5 / F7
Filter type Panel Panel
Filters dimensions bxhxl 450x210x46 450x210x46 mm
Acoustic data of REGO 400VE(W)-B-AC
63 125 250 500 1000 2000 4000 8000 dB(A)
Supply air ow
(into air ducts)
Intake 56 54 53 53 51 49 45 39 56,2
Supply 60 62 63 61 60 58 54 50 65,0*
Exhaust air ow
(into air ducts)
Extract 56 54 53 53 51 50 45 40 56,4
Exhaust 60 62 63 61 60 58 54 50 65,0
Kitchen hood connection 59 59 59 59 58 58 56 48 62,7
Surrounding (3 m distance) 52 53 51 44 37 32 27 23 46,5
* For AHU REGO 400VW-B, sound power less up to 2 dB(A).
Acoustic data of REGO 400VE(W)-B-EC
63 125 250 500 1000 2000 4000 8000 dB(A)
Supply air ow
(into air ducts)
Intake 49 47 43 43 45 41 38 36 48.8
Supply 55 56 54 54 54 52 50 48 59.0*
Exhaust air ow
(into air ducts)
Extract 49 47 43 43 45 41 38 36 48.8
Exhaust 55 56 54 54 54 52 50 48 59.0
Kitchen hood connection 53 51 47 48 50 49 47 45 55.2
Surrounding (3 m distance) 47 47 44 38 32 29 25 22 40.3
* For AHU REGO 400VW-B, sound power less up to 1,5 dB(A).
We reserve the right to make changes without prior notice.

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Installation and Maintenance Service Manual
REGO 400VE(W*)-B-AC Performance
REGO 400VE(W*)-B-EC Performance
* Correction factor for REGO 400VW - 15Pa
We reserve the right to make changes without prior notice.
Power consumption, W
Static pressure, Pa
Air volume, m3/h
Power consumption, W
Static pressure, Pa
Air volume, m3/h

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Installation and Maintenance Service Manual
Scheme
600
547
563
500
418 91
232
133
300
160(4x)
125
Ordering Key
REGO – 400 – V E(W) – B AC / EC – C4 – F
Filter class (F5 or F7)
Controller type: C4
Motor type: AC – alternating current,
EC – electronically commutated
By - pass
Air heater: W-water, E-electric
Version: vertical
Unit size (shows nominal air ow)
AHU type:
REGO – with rotary heat exchanger
We reserve the right to make changes without prior notice.

UAB AMALVA
Ozo str. 10,
LT–08200 VILNIUS, LITHUANIA
e-mail [email protected]
www.amalva.com
www.komfovent.com 2012