Starting and Settings
Make sure that the installation is completely finished before the current is connected to the control
unit. The control panel is used for settings and test operation so connect it temporarily to an AC
adapter close to the installation in the attic. More information about menu selections and settings
can be found in the manual: HomeVision PRO control panel.
Once the settings have been made, the system automatically shifts to normal operating mode and
the fan is then controlled by the current climate.
Connect the control panel to the control unit
The control unit is open for connection for 2 minutes after the control unit is powered. After 2
minutes, connection to the control panel is no longer possible, and the control unit must be restarted
by disconnecting the current for a short period.
Setting date and time
Set the correct date and time via the control panel. In order for the timeline in the log that is stored
on the USB memory to be easy to read, the date and time should always be checked and set as
necessary. If the control unit is unpowered for longer than 24h the date and time must be reset.
Checks at start-up
To ensure the system's operation and function it is very important that the following points are
checked.
Test operation of fan
The fan can be operated manually via the control panel (see control panel instructions)..
•
Test operate the fan gradually at speeds between 30–100%.
•
During test operation, check that air exits the attic space via the exhaust air damper.
•
Check that no strange noises are heard from the fan or that whistling sounds occur at in and outlet
vents at maximum speed.
•
Check that the guard on the fan is installed. If the fan is installed in a public area lock the guard on the
fan using a screw or pop rivet.
Mechanical exhaust air damper
The mechanical damper's flaps open when an overpressure of approx. 3-5pa is achieved in the attic
space. At what fan speed an overpressure of 3-5Pa can be achieved and the damper opens, depends
entirely on how well sealed the installation is. The mechanical damper should open at the latest
when the fan is operating at 80 - 100%. If the damper does not open, the leak in the attic space is too
large and additional sealing is required for proper function. Check that the damper flaps open
without any problems when touched lightly and spring back to the closed position.
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