Valve Actuator Air

The Loxone Valve Actuator Air is a wireless motorized valve actuator for heating systems. By using common adapter rings, it can be mounted on a wide range of valves, which are typically used for radiant floor heating and radiators.

Datasheet Valve Actuator Air

Table of Contents


In delivery state, the valve is fully open. The Valve Actuator Air performs a calibration run after pairing, so it must be installed before initial start-up. Before mounting, make sure that the valve pin is movable and not rusted.

Then snap the actuator onto the adapter ring. Do not apply excessive force. Make sure that the actuator is correctly positioned on the valve. Only use valve adapters suitable for the valve.

Then insert the batteries or connect the external 24VDC power supply.

If wiring the actuators, we recommend the Loxone Tree cable.
Strip the cable as far as needed and use the thin orange/white wire pair to connect the power supply.

For strain relief, form a small loop between the individual actuators and attach the cable near the first actuator.

The wires are pressed into the terminals of the actuators using the terminal cover, or the IDC Tool (100226) supplied with the Miniserver or Tree Extension.

Make sure that no water can drip onto the actuator.
Although the actuator can be mounted in any position, it is recommended to install the actuator above the valve to prevent water dripping onto the actuator in case of a leaking valve or condensation.
If a large number of valve actuators share one electrical line with a small wire cross-section, significant voltage drop may occur. In such a case, it is recommended to use a larger wire cross-section for the 24V supply line and to switch to a smaller cross-section just before connecting the actuators.


In delivery state, pairing mode will be active after the power supply has been established. This is indicated by the status LED flashing red/green/orange.

Then follow the pairing procedure on the Air Interface.

To activate the pairing mode manually, hold down the pairing button for at least 5 seconds immediately after inserting the battery.

After pairing, the calibration run starts. The Valve Actuator determines the valve travel and registers the 0% and 100% positions.

By default, the actuator then moves to the 0% position (valve closed). Programming must be created to open the valve again.

The available functions differ depending on whether the device is battery operated or connected to an external power supply. This is determined during pairing. The device must therefore be paired in the same supply method in which it is to be operated later.
If the supply method is changed later, the device must be deleted from the configuration and paired again.

LED states

LED state Description
Alternating red-green-orange (frequency 1Hz) Device is in pairing mode.
3 times green, then LED permanently off Device was successfully paired.
Blinking orange (frequency 1Hz) Air device is offline.
Rapid red-green flashing Identification (if powered with 24V).

Device test and calibration run

The actuator can be fully opened or closed for test purposes.
In addition, the actuator can be recalibrated.

If the actuator is battery powered , it must first be woken up.

Then right-click on the actuator in the Periphery tree and select an option:

Device test on: Fully open actuator/valve
Device test off: Fully close actuator/valve
Recalibrate device: Perform calibration run.

Battery Replacement

To replace the batteries, open the cover on the back of the Valve Air actuator. Remove the two AA batteries. After inserting the new batteries, the device restarts and the status LED flashes green 3 times.

The actuator fully opens and remains in this position for 60 seconds. This makes it easier to mount the actuator on the valve. The actuator then returns to the position set by logic.


Summary Description Unit Value Range
Temperature Provides the measured value of the integrated temperature sensor ° -20...35
Input 1 Digital input to use the button (pairing button) - 0/1


Summary Description Value Range
Valve Actuator Air Analog output to control the Valve Actuator
Actuator does not move right away but waits for the set interval of 5-20 minutes.
Valve Actuator Air

Diagnostic Inputs

Summary Description Unit Value Range
Online Status Valve Actuator Air Indicates whether the device can be reached by the Miniserver.
Diagnostics for Air devices
Diagnostics for Tree devices
Diagnostics for Extensions
Digital 0/1
Battery level Provides the current battery level. % 0...100
Battery low Indicates low battery, battery needs to be replaced. - 0/1
No valve detected No valve was detected - 0/1
Valve is stuck Indicates a stuck valve - 0/1


Summary Description Unit Value Range Default Value
Monitor Online Status When selected, you will be notified via System Status or the Mailer if the device is no longer available or goes offline. - - -
Serial Number Serial number of Air device - - -
Device type Air device type - - -
Polling cycle Interval for updating valve position and temperature.
Actuator only moves in the set interval.
min 5...20 -

Safety Instructions

When connecting to an external power supply, the installation must be carried out by a qualified technician in accordance with all applicable regulations.

Ensure that the device is protected from water.

The device must not be used as part of safety-critical systems.


Datasheet Valve Actuator Air