Data Sheet for Product

2
Siemens
A6V11858280_en
--
_b
Smart Infrastructure
2021
-
08
-
06
Product and application description
The valve actuator SSA118.09HKN is suitable for installation on radiator or zone valves. It
supports KNX PL-Link and S-Mode. It receives the setting commands via the KNX bus line
from a room temperature controller (RTC).
The valve actuator with integrated bus coupling unit is connected via a bus connecting block
to the KNX bus line. The power supply results from the bus voltage.
The valve adjustment works in proportion to an electromotive drive. Any valve position be-
tween two parametrizable limit values can be reached.
The device has two separate potential-free inputs, which can be used as a window contact
or a presence contact.
The valve actuator provides a valve protection mode, activated if the set value has not been
changed within 7 days. Thus, the valve completely opens and closes once to avoid valve
seizing when not actuated over an extended period of time.
The valve actuator can be used directly after mounting on the valve and connecting to the
bus voltage. If no application is loaded, the valve opens 25% automatically after automatic
calibration.
Application program in KNX S-Mode
● Automatic adjustment, different operating modes selectable
● Valve protection mode
● Forced mode
● Maximum actuating value limitation (min./max.)
● Adaption to valve characteristics
● Monitoring of current position
● Determination and forwarding of the maximum actuating value
● Transmission of the current position
● Potential-free input for window contact
● Potential-free input for condensation/presence contact
● Summer mode
Application programs in both KNX S-Mode and PL-Link are described in detail in
doc A6V12066162. See Product documentation [▶ 7] for more information.
Use
● For radiator valves, VDN.., VEN.., VUN..
● For Siemens PICV (pressure independent combi valves) VPP46.. and VPI46..
● For MiniCombi valves VPD.., VPE..
● For small valves VD1..CLC
● For radiator valves (M30 × 1.5) from other manufacturers without adapter
● Typically used on radiator or zone valves.
● For operation with PL-Link, max. 64 units of SSA118.09HKN are able to operate in paral-
lel, provided the controller output suffices.