Handling, Mounting and installation, Wiring | Siemens RDG400

5 Handling

5.1Mounting 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.

Mounting	• The room thermostat must be mounted in a clean, dry indoor place and must not be
	exposed to drip or splash water
Wiring	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!
Commissioning	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).
Control sequence	• 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”
Calibrate sensor	• 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
Setpoint and setpoint	• We recommend to review the setpoints and setpoint ranges (parameters
range limitation	P08…P12) and change them as needed to achieve maximum comfort and save
	energy

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Siemens	RDG100…/RDG110…/RDG140.../RDG160… Basic Documentation	CE1P3182en
Building Technologies	Handling	28 May 2009

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Siemens RDG400 manual Handling, Mounting and installation, Wiring, Commissioning

Contents

Building Technologies Edition CE1P3182en 28 May Table of contents About this document Revision historyReference documents Before you start Document use / request to the reader Types and features FeaturesSummary Brief description Equipment combinations Accessories UseOrdering SSA81 SSP81… SSB81 SSD81 SQS85… Temperature control FunctionsGeneral note Described in section Comfort mode Energy Saving Protection mode Operating modes Setpoints Comfort mode Energy Saving Protection mode Application Setpoints and sequenceSingle duct With min/max Limitation Single duct With Electrical Heater Comfort mode Energy Saving mode Application Heating mode Cooling mode Single ductProtection mode Heating mode Cooling mode With heating Cooling coil Applications overview Additional features Temperature sensor External / return airFloor heating Limitation function Sec after the last adjustment Button lockLocked or unlocked by pressing the right button for 3 sec Comf Extension Prot Absence Not available Eco Sequences overview setting via parameter P01 Parameter P01 = Sequence ModeControl sequences Applications and sequences Function of the control outputs is set via DIP switches 4 Single-duct heating / cooling coilDIP Y10 = … 10 10 … 0 V inverted Position Setting the sequence and the control outputs Single ductHeating or cooling Modulating control 3-position, PWM or DC 0 … 10 Modulating electrical heater Single duct with electrical heaterSequences Single duct with radiator or floor heating Modulating radiator / floor heating Modulating heating / cooling coil Single duct with heating / cooling coilControl sequence Synchronization Control outputsControl output for air flow ON/OFF control signal Signal Position controlPosition actuator Parameter P44 Y1 and Y2 Multifunctional input, Digital input AI/DI Handling of faults DIP switchesTemperature out Range Change the parameters as follows Parameter settingControl parameters Parameters Service level Service level Parameters Expert level, diagnostics & test Expert level Diagnostics & test Mounting and installation WiringHandling Mounting Operation LayoutButton operation User action Disposal LCD display Engineering Connection terminals Connection diagrams General DimensionsMechanical design Technical data Power supply Outputs Inputs Operational dataPage Index Automatic heating/cooling changeover