System air VR 300 ECV/B Operating and installation instructions

A001
VR 300 ECV/B
(1000W/500W)
Air Handling Unit
Installation description
GB GB

_________________________________________________________________________________________________________
VR 300 ECV/B Installation description
206552 (12-12-2012) 3Systemair AB
GB
Manufacturer
Our products are manufactured in compliance with applicable international standards and regulations.
Systemair AB
Industrivägen 3
SE-739 30 Skinnskatteberg
SWEDEN
Office: [phone]
Fax: [phone]
The manufacturer hereby confirms that the following products:
Air handling units
VR 300 ECV/B
Comply with the following EC-directives:
EC Declaration of Conformity
as defined by the EC Low Voltage Directive 2006/95/EC
The following harmonized standards are in use:
EN 60 335-1
Electric domestic products and similar – safety-general requirements.
EN 60 335-2-40
Safety of household and similar electrical appliances - Part 2-40: Particular requirements for electrical heat pumps, air-
conditioners and dehumidifiers.
EN 50 106:2007 Electric domestic products and similar-Safety-Instructions for control of manufacture.
EC Declaration of Conformity
as defined by EC’s EMC-directive 2004/108/EC
The following harmonized standards are in use:
EN 61000-6-3 Electromagnetic compatibility (EMC) part 6-3: Generic standards – Emission standard for residential,
commercial and light-industrial environments
EN 61000-6-2 Electromagnetic compatibility (EMC) – Part 6-2: Generic standards - Immunity for industrial environments
Complete technical documentation is available.
Skinnskatteberg, 08-04-2010
Mats Sándor
Technical Manager

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VR 300 ECV/B Installation description
206552 (12-12-2012) 4Systemair AB
Introduction
Installation, operation and maintenance manual concerns air handling unit type VR 300 ECV/B
manufactured by Systemair AB. It consists of basic instructions and recommendations concerning the
design, installation, start-up and operation, which shall be obeyed to ensure proper and fail-free operation
of the unit. For proper and safe operation, read this manual thoroughly. Use the unit according to
guidelines given and follow all safety requirements.
Table of contents
Manufacturer.................................................................................................................................3
Introduction ...................................................................................................................................4
Table of contents...........................................................................................................................4
Safety information .........................................................................................................................4
Warning! ...................................................................................................................................................4
Dimensions and weight.................................................................................................................5
Component description VR 300 ECV/B (internal) .........................................................................6
Component description VR 300 ECV/B (external) ........................................................................7
Transport and storage...................................................................................................................8
Where/how to install......................................................................................................................8
Ducting..........................................................................................................................................9
Duct connections.....................................................................................................................................9
Silencers...................................................................................................................................................9
Condensation/heat insulation................................................................................................................9
Fireplace, kitchen ventilator, tumble dryer etc..................................................................................11
Electrical connection ...................................................................................................................12
The unit...................................................................................................................................................12
Speed control.........................................................................................................................................12
Connection to cooker hood..................................................................................................................13
Commissioning............................................................................................................................14
Checklist......................................................................................................................................14
Before starting the system ..........................................................................................................15
Additional accessories ................................................................................................................15

Safety information
In order to avoid electrical shock, fire or other damage which might occur in connection with faulty use and
operation of the unit, it is important to consider the following:
Warning!
The Installation must be performed according to the installation instructions
The unit is heavy, be careful when lifting and mounting the unit
Beware of sharp edges when mounting and during maintenance. Use protective gloves!
Tumble dryer must not be connected directly to the ventilation system
Make sure that filters are mounted in their place before running the system
Before performing any maintenance or electrical work make sure that the mains supply is
disconnected.

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VR 300 ECV/B Installation description
206552 (12-12-2012) 5Systemair AB
Dimensions and weight
Position Description
A Connection supply air
B Connection exhaust air
C Connection outdoor air
D Connection extract air
E Connection cooker hood (Alt. connection)
F Connection cooker hood
Fig.1
A
BC D
E
D
E
B
A
C
F
598
576 326
84
215
84
210
299
Weight: 45kg
Alternative installation

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VR 300 ECV/B Installation description
206552 (12-12-2012) 6Systemair AB
Component description VR 300 ECV/B (internal)
Fig.2
1
2
3
4
5
6
7
8
Pos. Description
1. Fan supply air
2. Fan extract air
3. Filter supply air
4. Filter extract air
5. Heat exchanger
6. Electrical re-heater battery
7. Extract air connection for cooker hood
8. Alt. extract air connection for cooker hood

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VR 300 ECV/B Installation description
206552 (12-12-2012) 7Systemair AB
Component description VR 300 ECV/B (external)
1
2
3
4
56
78
9
10
12
13
14
14
11
Fig. 3 *Accessory (not included)
**not included (not available from Systemair)
Description
1. Wall bracket
2. Anti vibration gasket
3. Self-adhesive anti vibration damper
4. Mounting bracket
5. Supply air to living areas
6. Outdoor air intake
7. Exhaust air
8. Cooker hood if installed
(alt. connection in bottom)
9. Extract from wet rooms, shed and kitchen
10. Inspection hatch
11. Kitchen cupboard door**
12. Front panel (alt. to cupboard door)*
13. Duct cover*
14. Side panel*
15. Brackets for hanging installation*
16. Cooker hood*

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VR 300 ECV/B Installation description
206552 (12-12-2012) 8Systemair AB
Transport and storage
VR 300 ECV/B is delivered in one piece on a pallet for easy transportation using a forklift. The unit should
be stored and transported in such a way that it is protected against physical damage that can harm
panels, handles, display etc. It should be covered so that dust, rain and snow cannot enter and damage
the unit and its components. The appliance is delivered complete with all necessary components, wrapped
in plastic on a pallet for easy transportation.
Where/how to install
1) First chose installation position for the unit, considering that duct runs should be as simple as
possible.
2) If necessary the inspection hatches must be exchanged so that the hatch equipped with fixing clips for
front door panel (pos.10, fig.3) becomes the unit front. The hatch with fixing clips has improved noise
insulation, and this operation is therefore required even if front door panel is not to be mounted.
3) Install the mounting bracket (pos.4, fig.3) on top of the unit by means of provided screws and fix self-
adhesive anti vibration seal (pos.3, fig.3) on the lower part of the unit’s back side.
4) Install the wall bracket (pos.1, fig.3) with anti vibration pad. Bottom side of bracket should be 40mm
below top of unit position, alternatively 590mm from the bottom position. Check that the anti vibration
seal (pos.2, fig.3) is undamaged.
5) Lift the unit into position and make sure that there is no direct contact between unit and building
construction.
The unit should preferably be installed in a separate room (e.g. storeroom, laundry room or similar). Duct
from cooker hood can be connected to bypass duct (pos.7 fig.3) in top or bottom of the unit. As an
alternative, a cooker hood can be connected directly under the unit. The unit is designed for installation on
the wall, but can also be installed horizontally, i.e. hanging (separate instructions enclosed with brackets
for hanging installation) or lying. If installed lying, remember to mount necessary anti vibration pads under
the unit. The unit is equipped with large inspection hatches on both sides, and is laterally reversible for
flexible and simple connection to duct system.
When choosing the installation position, consideration must be taken that the unit requires regular
maintenance. Make sure that the inspection doors are available for maintenance/service. Leave free
space for removing of inspection doors and main components inside the unit. If the unit is installed on a
light wall construction towards a living room (e.g. bedroom), we recommend that the wall is insulated/
designed so that transfer of noise is avoided.
Recommended installation location for the outdoor air intake is the northern or eastern side of the building
and with a distance to openings for discharge of stale ventilation air, kitchen ventilator, central vacuum
system, waist water drainage and other pollution sources like exhaust from traffic etc. Stale discharge air
should ideally be led via a roof unit to outside and with a good distance to any outdoor air intake, windows
etc.
When the unit is installed over the cooker, a kitchen cupboard door (pos.11, fig.3) can be mounted to
cover the unit front, by means of the provided clip-in receptacle and stud (re. installation instructions on
mounting template).
White painted or Stainless, insulated front cover (alternative to kitchen cupboard door) (pos.12, fig.3),
white side panels (where unit side is visible) (pos.14, fig.3) and white painted duct cover (pos.13, fig.3)
between ceiling and unit (H=295mm) can be supplied as additional equipment.

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VR 300 ECV/B Installation description
206552 (12-12-2012) 9Systemair AB
Ducting
General
Air to and from the unit is led through a duct system. To ensure a long life and satisfactory cleaning
possibilities, ducts made of galvanised steel (Spiro) are highly recommended.
Short pieces (max. 1m) of flexible aluminium ducting can be used for connection of the unit to roof
unit/wall grill.
To obtain high efficiency, low energy consumption and required airflow, the duct system should be
commissioned for low air speeds and a low pressure drop.
NOTE!
If the VR 300 ECV/B is not connected to a cooker hood, the connector (pos.7, fig. 3) on the
unit must remain plugged
Do not connect tumble dryer to the ventilation system. Use separate duct from the dryer to
the outdoors
Duct connections/duct ends should be covered during storage and installation.
Grill for discharge/roof unit must also be installed according to building regulations in
force.
Duct connections
Secure all joints between ducting and Tee-pieces, duct connectors, reducers etc. by means of special
tape or 3 pcs. Self-drilling screws per joint. “Telescopic joint” on Villavent Zoom duct must be taped (fig.4).
Silencers
To avoid fan noise being transferred to rooms, install sound attenuators (pos.1, fig.5) on connectors for
inlet air and extract air on the unit. (L = 1,0m). Not from cooker hood.
To avoid noise being transferred between rooms via the duct system and also to reduce noise from the
duct system itself, installation of sound attenuators before every inlet diffuser is recommended.
Flexible ducting
Flexible ducting (pos. 2, fig. 5) to be used only for connections between the unit and roof unit/grill for
outdoor air intake.
Condensation/heat insulation.
Outdoor air duct and discharge ducts must always be well insulated against condensation (fig.6). Correct
insulation installation on ducts connected to the unit is especially important. All ducting installed in cold
rooms/areas must be well insulated. Use insulating covering (minimum 100 mm mineral wool) with plastic
diffusion barrier. In areas with extremely low outdoor temperatures during the winter, additional insulation
must be installed. Total insulation thickness must be at least 150 mm.
NOTE! If the unit is installed in a cold place make sure that all joints are covered with insulation,
and tape well.

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VR 300 ECV/B Installation description
206552 (12-12-2012) 10 Systemair AB
Fig. 4 Fig.5
Fig.6
Diffusers/valves
Inlet diffusers & extract valves (Fig. 7)
Mount inlet diffusers in all living rooms, dining areas and bedrooms. Extract valves to be installed in
bathrooms, laundry room, WC and kitchen. Note: Even if the cooker hood is connected to the unit, a
separate extract valve must be installed in the kitchen.
In the VR 300 ECV/B the extract air from the cooker is led directly to the extract fan, bypassing the heat
exchanger. In order to obtain heat recovery from the basic ventilation, the extract valve in the kitchen must
be connected to pos.9, fig.3. together with extract from the wet rooms.
Note! The cooker hood must be equipped with a damper leaving no opening in closed position
(without opening for basic ventilation). Bung, provided with the cooker hood models
adaptable to the unit, must be mounted.
Extract valves can be ceiling- or wall mounted. Inlet diffuser should be mounted in the ceiling. Make sure
that the air stream from inlet diffusers has a free passage.
Air stream from inlet diffuser mounted on the wall (where the ceiling is horizontal), must have throw length,
so that the air is supplied to the room alongside the ceiling. Air supply through extract valves will ensure
an air stream with throw length, and extract louvers can therefore be used as inlet diffusers when mounted
in the wall close to the ceiling. Use frames to ease the removing of diffusers for cleaning.
For basic setting of inlet diffusers, open core of the diffuser 5-7 turns from closed position. Lock by means
of centre nut. For basic setting of extract louvers, open core of the diffuser 10 turns from closed position.
Lock by means of centre nut.
Setting of air volume
For adjustment of air volumes to each separate room, setting on diffusers/valves are to be made in
accordance with calculations made during designing of the ventilation system or during commissioning of
the system (special measuring equipment required).

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VR 300 ECV/B Installation description
206552 (12-12-2012) 11 Systemair AB
1. Inlet iffuser (ceiling mounted)
2. Extract diffuser/air valve
3. Flexible silencer with frame
Fig.7
Air circulation between rooms
To obtain a satisfactory air circulation, a small gap should exist around the doors between rooms with inlet
diffusers (living rooms and bedrooms) and rooms with extract points (bathroom, WC, kitchen, laundry
rooms etc.). Install doors with slot in the frame, doors without doorsill or slots/vents in doors/wall (min. 70
cm2free area per extract diffuser)(fig.8).
Fireplace, kitchen ventilator, tumble dryer etc.
Balanced ventilation is obtained where the VR 300 ECV/B is installed. There will normally be no under
pressure in the building, and therefore no risk for back draught from fireplace or chimney.
An open fireplace requires an air supply of 150 – 300 m3/h (40 – 80 l/s) for maximum functionality and
efficiency. This equals 300 cm2ventilation slots per fireplace. Supply air duct directly to the fireplace would
be the optimal solution, but 2 pcs. 16x16 cm closing vents in outer wall is a good alternative (Fig.9).
When cooker hood is connected to the VR 300 ECV/B, the airflow will automatically be increased when
kitchen extract is in use. A minor under pressure in the building could occur. This can be solved by slightly
opening a window or by leaving a vent in the wall open while cooking.
16x16 cm vents could be installed for air supply to tumble dryer and kitchen ventilator (one for each).
These should preferable be installed in the same room. An open window will also give the required air
supply to fireplace, kitchen ventilator and tumble dryer.
Fig.8 Fig.9


Ø125 mm
Ø100/125/160 mm
Ø100 mm
Ø100/Ø125 mm


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VR 300 ECV/B Installation description
206552 (12-12-2012) 12 Systemair AB
Electrical connection
The unit
The VR 300 ECV/B units are supplied with apx. 1m cable and plug for 10A, 230V, single phased earthed
connection. The electrical connection to the cooker hood is done through connection plugs (fig. 10)
situated on the bottom plate of the unit. The 3 pole connection plug (pos. 1, fig. 10) is used for the mains
supply of the cooker hood light and the 4 pole connection plug is used for the speed control signal.
In case a cooker hood is not used and the speed control is done by an external speed regulator the 3
pole connection plug (pos 1, fig. 10) is not used.
See also the wiring diagram, which is enclosed with the unit.
12
Fig. 10
Speed control
The VR 300 ECV/B (pos 1, fig. 11) can alternatively be controlled from a wall mounted 3 step speed
regulator (pos 2, fig. 11) or from a cooker hood where the speed control is integrated in cooker hood front.
If a separate 3-step speed regulator is used a 3-wire cable needs to be connected to the speed
regulator (fig.12) At the end of that cable a 4 pole male plug, type Ensto NAC41SH.W can be
applied in order to fit the corresponding connector (Ensto NAC42SH.W) on the VR 300 ECV/B. Make sure
that the cable colors correspond to each other when the two connectors are joined.
Check the enclosed wiring diagram for more detailed information.
1
2
3
2
Position Description
1 Air handling unit VR 300 ECV/B
2 3-step speed regulator
3 Control signal connection plug
Fig. 11

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VR 300 ECV/B Installation description
206552 (12-12-2012) 13 Systemair AB
R = Red
B = Blue
Y = Yellow
Fig. 12
Connection to cooker hood
The VR 300 ECV/B is designed for connection to, and for operation from, special cooker hood.
When mounting the cooker hood underneath the ventilation unit the special plugs on the cooker hood are
connected to the corresponding plugs on the ventilation unit (fig.13).
For remote installation of the cooker hood, use fixed wiring by means of 2 pcs PFXPplastic cable 3x1,5
mm2 + earth or equal.
On the side of the cooker hood mount Ensto special plugs respectively type NAC31SH.W (3-pole)
and NAC41SH.W on the cables.
On the ventilation unit side mount Ensto special plugs NAC32SH.W and NAC42SH.W on the
cables.
(As an alternative to Ensto plugs, standard junction box can be applied).
Check the enclosed wiring diagram for more detailed information.
1
2
34
56
Position Description
1 Air handling unit VR 300 ECV/B
2 Cooker hood
3 Ensto special plug, type NAC32SH. (230V 1~)
4 Ensto special plug, type NAC42SH.W (control signal 10VDC)
5 Ensto special plug, type NAC31SH.W (230V 1~)
6 Ensto special plug, type NAC41SH.W (control signal 10VDC)
Fig.13

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VR 300 ECV/B Installation description
206552 (12-12-2012) 14 Systemair AB
Commissioning
The speed of the supply air fan of VR 300 ECV/B can be adjusted by turning a knob situated inside the
unit next to the supply air fan (pos.5, fig.14). The knob, a step-less potentiometer, makes it possible to
lower the supply air fan speed down to 75% of the speed of the extract air fan, thereby ensuring the
proper balance in the unit and building.
Fig.14
Checklist
When the installation is finished, check that:
NB! If start-up of the system is delayed, the duct system must be protected (by means of bungs)
so that air circulation is prevented. This is to avoid condensation and damage in the
ventilation unit.
1. the unit is installed in accordance with instructions.
2. sound attenuators are installed and that the duct system is correctly connected to the unit.
3. there is no noise from the unit or from diffusers and louvers.
4. outdoor air intake and discharge is installed so that short circuit of the air streams is avoided.
5. outdoor air intake is positioned with sufficient distance to pollution source (kitchen ventilator exhaust,
central vacuum system exhaust or similar).
6. control functions are operating (see user and maintenance instructions, “Operation”).
7. The cooker hood (if installed) is equipped with a damper leaving no opening in closed position (without
opening for basic ventilation).
5 3 4
21
Pos. Description
1 VR 300 ECV/B viewed from the
back
2 Mounting bracket
3 Supply air fan
4 Outdoor air filter
5 Internal potentiometer

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VR 300 ECV/B Installation description
206552 (12-12-2012) 15 Systemair AB
Before starting the system
1. Choose required airflow at normal and min. fan speed as follows:
Set the normal and min. fan speed of the ventilation unit from potentiometers in the back of the
speed regulator (fig. 12) or cooker hood (see instructions for cooker hood). The potentiometers are
set by using a screw driver. Turning the potentiometer results in different control voltages to the
fans (see table 1). To get an idea of the airflow corresponding to each voltage output see fig. 15
showing a fan performance diagram displaying performance curves for supply air and extract air.
Speed setting Voltage range
Min. speed 3-7 V
Norm. speed 5-9 V
Table 1
010 20 30 40 50 60 70
0
100
200
300
400
500
600
700
80 90
Q (l/s)
3V 4V 6V 10V
1
2
1 Fan performance curve extract air
2 Fan performance curve supply air
Fig. 15
2. Adjust diffusers and air valves in accordance with commissioning or basic setting (see “Diffusers/air
valves”). Make sure that sector shutter in the inlet diffusers are set so that the air stream is not led
towards obstructions like visible joist, wall etc.
3. Choose desired supply air temperature, (see User and maintenance instructions; “Operation”).
Additional accessories
For more information about silencers, diffusers/air valves, roof units, wall grilles etc. see technical
catalogue and installation respective instructions.

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VR 300 ECV/B Installation description
206552 (12-12-2012) 16 Systemair AB
Systemair AB reserves the right to make changes and improvements to the contents of this manual
without prior notice

A001
VR 300 ECV/B
(1000W/500W)
Luftbehandlingsaggregat
Installationsbeskrivning
GB SE

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VR 300 ECV/B Installationsbeskrivning
206552 (2012-12-12) 18 Systemair AB
SE
Tillverkare
Våra produkter är tillverkade i enlighet med gällande EU-direktiv.
Systemair AB
Industrivägen 3
739 30 Skinnskatteberg
Tel: [phone]
Fax: [phone]
Tillverkaren försäkrar härmed att följande produkter:
Luftbehandlingsaggregat
VR 300 ECV/B
EU-försäkran om överensstämmelse
enligt Eus lågspänningsdirektiv 2006/95/EG
Harmoniserade standarder:
EN 60 335-1
Elektriska hushållsapparater och liknande bruksföremål- Säkerherhet-Allmänna fordringar.
EN 60 335-2-40 Elektriska hushållsapparater och liknande bruksföremål – Säkerhet – Del 2: Särskilda fordringar på
elektriska värmepumpar, Internationella standarder
EN 50 106:2007
Elektriska hushållsapparater och liknande bruksföremål-Säkerhet-Anvisningar för tillverkningskontroll.
EU-försäkran om överensstämmelse
enligt Eus EMC-direktiv 2004/108/EG
Harmoniserade standarder:
EN 61000-6-3 Elektromagnetisk kompabilitet (EMC) del 6-3: Generella fordringar – Standarder för emission i
bostäder, kommersiella byggnader samt lättare industrimiljöer.
EN 61000-6-2 Elektromagnetisk kompatibilitet (EMC) del 6-2: Generella fordringar – Immunitet hos utrustning i
industrimiljö.
Komplett teknisk dokumentation finns tillgänglig.
Skinnskatteberg, 2010-04-08
Mats Sándor
Teknisk chef

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VR 300 ECV/B Installationsbeskrivning
206552 (2012-12-12) 19 Systemair AB
Introduktion
Installation, drift och skötselanvisningen gäller för tilluftaggregat VR 300 ECV/B, tillverkat av Systemair AB.
Anvisningen består av basinformation och rekommendationer gällande konstruktion, installation, start och
drift. Instruktionerna ska åtlydas för att säkerställa en säker och felfri drift. Nyckeln till en felfri och säker drift
av aggregatet är att noggrant läsa denna manual. Använd aggregatet i enlighet med givna riktlinjer och följ
alla säkerhetsbestämmelser.
Innehållsförteckning
Tillverkare....................................................................................................................................18
Introduktion .................................................................................................................................19
Innehållsförteckning ....................................................................................................................19
Säkerhetsinformation ..................................................................................................................19
Varning! ..................................................................................................................................................19
Dimensioner och vikter................................................................................................................20
Komponentbeskrivning VR 300 ECV/B (interna komponenter) ..................................................21
Komponentbeskrivning VR 300 ECV/B (externa komponenter) .................................................22
Transport och lagring ..................................................................................................................23
Placering var/hur.........................................................................................................................23
Kanalsystem................................................................................................................................24
Don..........................................................................................................................................................25
Överluft från rum till rum.......................................................................................................................26
Eldstad, spiskåpa, torktumlare m m ...................................................................................................26
Elektriska arbeten .......................................................................................................................27
Aggregatet..............................................................................................................................................27
Hastighetsreglering...............................................................................................................................27
Anslutning till spiskåpa.........................................................................................................................28
Injustering....................................................................................................................................29
Uppstart och injustering ..............................................................................................................29
Innan anläggningen tas i bruk.....................................................................................................30
Tillbehör ......................................................................................................................................30

Säkerhetsinformation
För att undvika elektrisk stöt, brand eller andra skador som kan uppstå på grund av felaktigt användande
eller behandling av aggregatet, är det viktigt att ta hänsyn till följande:
Varning!
Installationen ska vara utförd enligt montageanvisningar
Aggregatet är tungt, var försiktig vid lyft samt montage
Se upp för vassa kanter vid installation, service och underhåll. Använd skyddshandskar!
Torktumlare skall inte anslutas till anläggningen
Anläggningen skall endast användas när det är monterat filter i aggregatet
Stickkontakten dras ur vid service och/eller inspektion av aggregatet.

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VR 300 ECV/B Installationsbeskrivning
206552 (2012-12-12) 20 Systemair AB
Dimensioner och vikter
Position Beskrivning
A Anslutning tilluft
B Anslutning avluft
C Anslutning uteluft
D Anslutning frånluft
E Anslutning spiskåpa (Alt. Anslutning)
F Anslutning kökskåpa
Fig.1
A
BC D
E
D
E
B
A
C
F
598
576 326
84
215
84
210
299
Vikt: 45kg
Alternativ installation