User Manual

16
Siemens
Datasheet
A6V11545853_en--_a
Smart Infrastructure
2020-09-07
● Properly size the cables to the thermostat, fan and valve actuators for AC 230 V
mains voltage.
● Use valve actuators rated for AC 230 V / AC 24 V / DC 24 V depending on mains
voltage.
● Inputs X1-M, X2-M or U1-M: Multiple switches (e.g. summer/winter switch) may be
connected in parallel. Consider overall maximum contact sensing current for switch
rating.
● When mains voltage is AC 230 V, SELV inputs X1-M, X2-M and U1-M use cables with
min. 230 V insulation.
● Selectable relay function: Follow instructions in basic documentation A6V11545892 to
connect external equipment to the relay outputs.
● Disconnect thermostat from power supply before removing from the mounting plate.
● If a KNX bus power supply is connected to the line with communicating thermostats
and Synco™ controller, the internal KNX power supply of the Synco™ controllers must
be switched off.
Commissioning
Applications and settings
The room thermostats are delivered with a fixed set of applications and related parameters.
Select and activate the relevant application and settings during commissioning using one of
the following tools:
● Local DIP switches and HMI
● Synco™ ACS
● ETS5 or higher versions
● Siemens smartphone application PCT Go for Android™
DIP switches
Set the DIP switches before snapping the thermostat to the mounting plate, if selecting an
application via DIP switches.
Set all DIP switches to Off (remote configuration) if selecting an application via
commissioning tool.
After power is on, the thermostat resets and all LCD segments light up, indicating that reset
is correct. After the reset of 3 seconds, the thermostat is ready for commissioning by
qualified HVAC staff.
If all DIP switches are Off, NO APPL displays, indicating that application commissioning via a
tool is required.
Commissioning via Siemens smartphone application PCT Go for Android™
The setting via the Siemens smartphone application Product Commissioning Tool (PCT Go)
for Android™ is used to set the application and parameters settings of the thermostat.
DIP switches can be either all set to Off or preset with an application. (DIP switch setting has
higher priority.)
This tool allows for wireless setting of the thermostat with Android™ smartphone and
read/write parameters.
The commissioning tool works directly after users scan either the antenna area of the
thermostat or the NFC area on the individual package box.
In addition, users can: