User Manual

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Siemens RCU50... Room Thermostat CE1N3045en
Building Technologies 2017-11-15
Notes
In systems without 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 room
thermostat’s input.
With continuous cooling operation, the controller input (B2-M) must be bridged.
Check the settings of DIP switches no. 1 through no. 5 and of the potentiometer of the
RCU50 / RCU50.1 and of DIP switch no. 1 of the RCU50.2 and change them, if
required. If setpoint limitation is required, use the minimum and maximum limitation
facility (energy saver).
After applying power, the room thermostat makes a reset, which takes about 3
seconds. Then, it will be ready to operate.
The room thermostat is supplied with Mounting Instructions.
Mounting location: on a wall of the room to be conditioned. Not in niches or book-
shelves, 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 room thermostat from a recessed conduit box.
Only authorized personnel may open the room thermostat.
When mounting the unit, fix the baseplate first. Then, make the electrical connections
and fit and secure the cover.
The room thermostat must be mounted on a flat wall and in compliance with local
regulations.
If there are thermostatic radiator valves in the reference room , they must be set to their
fully open position.
Warning!
No internal line protection for supply lines
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 room thermostat is maintenance-free.
Disposal
The device is considered an electronic device for disposal in terms of the
European Directive 2012/19/EU 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.
Mounting, installation
and commissioning
Maintenance