User Manual

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Siemens Room Temperature Controllers N3067en
Building Technologies 2014-04-04
Mounting and installation
The room controller can be mounted on a recessed square conduit box with fixing
centres of 60.3mm. The mounting location on a wall should not be 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.
Also refer to the Mounting Instructions B3067 enclosed with the controller.
· Wiring, protection and earthing must be installed in compliance with local
regulations.
· The cables to the controller, fan and valves carry AC 230 V mains voltage and must
be appropriate sized
· Only valves rated for AC 230 V may be used
· The AC 230 V mains supply line must have an external fuse or
circuit breaker with a
rated current of no more than 10 A
Warning!
No internal line protection for supply lines to external consumers
(Q1, Q2, Q3, Y11)
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.
After applying power, the controller makes a reset during which all LCD segments flash,
indicating that the reset has been correctly made. This takes about 3 seconds. Then,
the controller is ready for commissioning by qualified HVAC staff. The control
parameters of the controller can be set to ensure optimum performance of the whole
system (also refer to “Setting the control parameters”).
· Depending on the application, the heating / cooling mode must be set via parameter
P22. Factory setting is “Manual heat/cool changeover”. When using in ”Cooling
only” or “Heating only”, P22 must be set accordingly.
· If the controller is used in conjunction with a compressor, the minimum output on
time (parameter P15) and off time (parameter P16) of Y11 must be adjusted in order
not to harm the life time of the compressor
· If the room temperature displayed by the controller dos not accord with the room
temperature effectively measured, the temperature sensor can be recalibrated. In
that case, parameter P07 must be changed
· For comfort and energy saving reasons, it is suggested to review the setpoints and
setpoint ranges (parameters P01…P06) and, if necessary, to change them
accordingly
Disposal
The devices are considered electronics devices for disposal in term of European
Directive 2012/19/EU and may not be disposed of as domestic waste.
· Dispose of the device via the channels provided for this purpose.
· Comply with all local and currently applicable laws and regulations.
Wiring
Commissioning
Heating / cooling mode
Compressor-based
application
Calibrating the sensor
Setpoint and range
limitation