System air VR 300 ECV/B Operating and installation instructions

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

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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
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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).