VTR 100B LITE Installation and Service manual v2

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Commissioning
1. Enter the service menu by selecting the service
symbol in the display and press ENTER.
Service
2. Go to password and enter the password,
default 1111
Use the SELECTION knob for each digit and confirm with
the ENTER button after each set digit and choose NO for
the system not be locked.
Password
Password XXXX
Locked YES/NO
3. Go to Functions and select Factory Reset
Functions
Factory reset
4. Turn the SELECTION knob so YES is shown and press
ENTER.
Factory reset
Really reset? YES/NO
5. ACCEPTED is shown in the display window
ACCEPTED
6. The Start up Wizard starts after approximately 10
seconds
5.3 System curves
A system requires different pressures at different airflows, which can be represented by a system curve. The intersec-
tion between the system line and the fan curve, is the unit's working point. It is showing the airflow the system is going
to have. Every change in the pressure of the ventilation system, will give rise to a new system curve.
If you choose to do the commissioning with l/s or m
3
/h, you need to know the system’s pressure in order to choose a
suitable system curve.
5.3.1 Flow settings supply air, G3/Coarse 50% type filter
Fig. 26 Supply air flow settings, G3/Coarse 50% type filter
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