Data Sheet for Product
6/10
Siemens Room temperature controller CE1N3021en
Smart Infrastructure 2021-12-08
Engineering notes
In systems with automatic changeover, the temperature sensor can be replaced by an
external switch for manual changeover.
In systems with continuous heating operation, no sensor will be connected to the con-
troller’s input.
With continuous cooling operation, the controller input (B2–M) must be bridged.
Mounting location: on a wall or inside the fan coil unit. Not in niches or bookshelves, not
behind curtains, above or near heat sources and not exposed to direct solar radiation.
Mounting height is about 1.5 m above the floor. The connecting wires can be run to the
controller from a recessed conduit box.
Check the settings of the DIP switches no.1 through no.5 (with the RCC10) and of no.1
and no.2 (with the RCC10.1) and change them, if required. If setpoint limitation is re-
quired, use the minimum and maximum limitation facility (energy saver). After applying
power, the controller makes a reset during which the fan LED flashes, indicating that
the reset has been correctly made. This takes about 3 seconds. Then, the controller will
be ready to operate.
Prior to fitting the changeover sensor, thermal conductive paste must be applied to
the location on the pipe where the sensor is placed
The cables used must satisfy the insulation requirements with regard to mains poten-
tial
Sensor inputs B1–M and B2–M carry mains potential. If the sensor’s cables must be
extended, the cables used must be suited for mains voltage
Warning!
No internal line protection for supply lines to external consumers
(Q1, Q2, Q3, Y11, Y12)
Risk of fire and injury due to short-circuits!
Adapt the line diameters as per local regulations to the rated value of the installed
overcurrent protection device.
The controller is supplied with Mounting Instructions.
Disposal
The device is considered an electronic device for disposal in accordance with Eu-
ropean Directive and may not be disposed of as domestic waste.
Use only designated channels for disposing the devices.
Comply with all local and currently applicable laws and regulations.
Mounting, installation
and commissioning
notes