Siemens RDG400 - Manual (Page 32)

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Siemens RDG100…/RDG110…/RDG140.../RDG160… Basic Documentation CE1P3182en
Building Technologies Handling 28 May 2009
5 Handling
5.1 Mounting and installation
Do not mount on a wall in niches or bookshelves, behind curtains, above or near
heat sources, or exposed to direct solar radiation. Mount about 1.5 m above the
floor.
• The room thermostat must be mounted in a clean, dry indoor place and must not be
exposed to drip or splash water
See Mounting Instructions (M3182) enclosed with the thermostat.
• Comply with local regulations to wire, fuse and earth the thermostat
• The power supply line must have an external fuse or circuit breaker with a
rated current of no more than 10 A
• Inputs X1-M, X2-M or D1-GND of different units (e.g. summer / winter
switch) may be connected in parallel with an external switch. Consider
overall maximum contact sensing current for switch rating
• Disconnect power supply before removing the thermostat from the mounting
plate!
Select the application and type of control output via the DIP switches before fitting
the thermostat to the mounting plate.
After power is applied, the thermostat carries out a reset during which all LCD
segments flash, indicating that the reset was correct. After the reset, which takes
about 3 seconds, the thermostat is ready for commissioning by qualified HVAC
staff. The control parameters of the thermostat can be set to ensure optimum
performance of the entire system (see Basic Documentation P3182).
• The control sequence may need to be set via parameter P01 depending on the
application. The factory setting for the single-duct application is “Cooling only”
• Recalibrate the temperature sensor if the room temperature displayed on the
thermostat does not match the room temperature measured. To do this, change
parameter P05
• We recommend to review the setpoints and setpoint ranges (parameters
P08…P12) and change them as needed to achieve maximum comfort and save
energy
Mounting
Wiring
Commissioning
Control sequence
Calibrate sensor
Setpoint and setpoint
range limitation