Maintenance reminder
The Maintenance reminder switches on the Maintenance reminder symbol ( ) in the main
display of the control panel at defined intervals, the factory setting being 4 months.
The Maintenance reminder symbol is acknowledged at the control panel
(see page 14, Section 1.3.10.).
The interval can be set between 1...15 months at the control panel.
Fireplace and booster switch function
The KWL EC 300 Pro comes with a control input to connect external switches. In the menu
of the control panel (Section 1.3.17) the function can be arranged. Chose the booster switch
function or fireplace switch function. Press + and - buttons simultaneously (>2 sec) at the
control panel to activate it.
Fireplace switch function
The fireplace switch stops the extract air fan for 15 minutes and produces overpressure in
ventilation zone. Thist makes it easier to light the fireplace, for instance.
During this function, the fireplace switch symbol ( ) is visible in the main display of the
control panel.
Booster switch function
The booster switch raises the fan speed to the maximum speed for 45 minutes.
During the function the booster switch symbol ( ) is visible in the main display of the
control panel.
Please note that the fireplace switch functions comply with the country-specific
regulations! To this you find important informations on page 4.
Note: The starting of the extract air fan may weaken draft in the fireplace!
Make sure that in the room a sufficient overpressure accured.
DC fan adjustment option
KWL EC 300 Pro is equipped with DC fans. The rotation speed of the supply and extract
fans may be adjusted separately.
You can set the supply air fan at 100% and the extract air fan at 100%, for instance (factory
settings). The 8 speed levels can be adjust in the range of 65...100%.
The adjustment is made at the control panel.
Fault signal relay (remote monitoring)
The fault signal relay has potential-free points (24 VDC, 1A).
Alarm of high carbon dioxide content switches the relay at 1-second intervals.
In other fault situations, the points are closed. (e.g. sensor cable break).
DESCRIPTION OF OPERATION
11
m
Summary of Contents for KWL EC 300 Pro R
Page 19: ...19 ANSCHLUSSPLAN...
Page 41: ...19 WIRING...
