Product- and Applications Description
The valve actuator AP 562/02 is suitable for installation on radiator
or zone valves. It receives the set commands via the KNX
bus line from a room temperature controller.
The valve actuator with integrated bus coupling unit is connected
with a bus connecting block to the KNX bus line. The
power supply results from the bus voltage.
Constant mode of operating:
The valve adjustment works motor driven proportional. Any
valve position between two parametrizable limit values can be
reached. The current valve position is displayed by five LEDs at
the front side of the device.
The device has two separate binary inputs, which can be used
as a window contact or a presence contact. The respective values
of the corresponding communication objects can be sent
via the KNX bus e. g. for changing the operation modes (forced
mode frost protection/comfort mode).
By monitoring the time interval between two set value telegrams
sent out by the room temperature controller, whose
function can be controlled. If the telegram failures an alarm
telegram can be sent via the KNX bus and an emergency mode
can be activated.
By using central heating boilers with a demand regulated flow
temperature control the device can send a feedback regarding
the current energy demand (current max. valve position) via a
group address to the central heating boiler.
The valve actuator provides a valve protection mode, which is
activated if the set value has not been changed during 7 days.
Thereby the valve will be completely opened and closed one
time to avoid blocking of the valve if it has not moved over a
longer period of time.
The valve actuator can be used directly after connecting to the
bus voltage. If there is still no application loaded, the valve will
be opened - after an automatic adjustment - 25 % automatically.