SystemAir VR 300 ECV/B, Installation Description

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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
2
1
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