Data Sheet for Product

9
Siemens
A6V12005486_en--_c
Smart Infrastructure
2021-05-17
Commissioning
The room thermostat is delivered with a fixed set of applications.
Select and activate the relevant application during commissioning using one of the following
tools:
● Local DIP switch and HMI
● Modbus commissioning tools
Set the DIP switches before snapping the front panel onto the mounting plate, if you want to
select an application via DIP switches.
All DIP switches need to be set to “OFF” ("remote configuration"), if you want to select an
application via commissioning tools.
After power is applied, the thermostat resets and all LCD segments light up, indicating that
resetting was correct. After the reset, which takes about 3 seconds, the thermostat is ready
for commissioning by qualified HVAC staff.
If “NONE” is displayed on the LCD, the DIP switches are set to OFF-OFF-OFF for remote
configuration, but the application has not yet been assigned to the device. The application
can be set using commissioning tools via RS485 Modbus.
Note
When the application is changed, the thermostat reloads the factory settings for all control
parameters, except baud rate (P82), parity (P83) and zone addresses (P81)!
The thermostat's control parameters can be set to ensure optimum performance of the entire
system.
The parameters can be adjusted via
● Local HMI
● Modbus commissioning tools
The control sequence may need to be set via parameter P01 depending on the application.
The factory setting for the 2-pipe application is “Cooling only”; and “Heating and cooling” for
the 4-pipe application.
Compressor-based application
When the thermostat is used with a compressor, adjust the minimum output On-time (P48)
and Off-time (P49) for Y1/Y2 to avoid damaging the compressor or shortening its life due to
frequent switching.
Recalibrate the temperature sensor if the room temperature displayed on the thermostat
does not match the room temperature measured (after minimum 1 hour of operation). To do
this, change P05.
We recommend reviewing the setpoints and setpoint ranges (P08…P12) and changing them
as needed to achieve maximum comfort and save energy.
Disposal
The device is considered an electronic device for disposal in accordance
with the European Guidelines and may not be disposed of as domestic
garbage.
● Dispose of the device through channels provided for this purpose.
● Comply with all local and currently applicable laws and regulations.
Applications
Display “NONE”
Control parame-
ters
Control sequence
Calibrate sensor
Setpoint and range
limitation