Installation; Operation; Maintenance - Siemens POS8.4420/109 Manual

● Seal the conduit box or the installation tube if any, as air currents can affect sensor
readings.
● Adhere to allowed ambient conditions.
For more information about mounting, see the Mounting instructions A6V10733764 .

Installation

The devices are not protected against accidental connection to AC 230 V.
● Use the correct cables for the KNX PL-Link bus.
● Do not interchange the wires of the KNX PL-Link cable.
● Observe all local installation regulations.
Commissioning
The device gets its applications from the connected controller by automatic commissioning.
During initial power-up using the KNX bus, commissioning begins automatically.

Operation

The application loaded in the connected controller determines device operation.
Operating mode:
● Auto mode
–
–
● Manual mode
–
● Temporary function
–
Parameter settings
The behavior of the device is configured via parameters. Long-press button 8 to open the
standard page to adjust settings for P01 to P05, and long-press buttons 6 and 8 to open the
expert page to adjust settings for P01 to P05 and P51.
More information about parameter descriptions, see Basic documentation (A6V11471220).
Scheduler settings
Users can use the scheduler to adjust the HVAC modes. For example, users can set the
device to run in Comfort mode from 9:00 to 17:00 and Economy mode from 17:00 to 19:00.
Long-press button 2 to open the scheduler settings page.

Maintenance

The device can be cleaned with off-the shelf, solvent-free cleaning agents.
Do not use mechanical aids (rough sponge or similar materials) – only a soft, damp cloth.
6
Siemens
Smart Infrastructure
CAUTION
The device always works as defined in the application.
Users can change settings temporarily, such as heating temperature or the domestic
hot water setpoint.
Users can change operating settings, such as operating mode, heating and domestic
hot water setpoint, HVAC mode, etc.
There are two temporary modes: ventilation boost and fire place. When temporary
mode times out, the device returns to the previous mode. Tapping button 1 in
Temporary mode terminates Temporary mode and returns the device to Auto mode.
A6V11519429_en--_a
2019-01-28