RDU340 Room temperature controllers

3
Semi Flush-mount
Room Temperature
Controllers with LCD
078
RDU340
for VAV heating and cooling systems
N3078en
11 July 2008
•
Modulating PI control
•
Control depending on the room or the return air temperature
•
Output for a DC 0…10 V actuator and AC 230V electrical heater (ON-OFF)
•
Automatic or manual heating/cooling changeover
•
Operating modes: Comfort, Energy Saving and Protection
•
Two multifunctional inputs for keycard contact, external sensor, etc.
•
Adjustable commissioning and control parameters
•
Minimum and maximum setpoint limitation
•
Adjustable minimum and maximum limitation for air flow signal DC 0..10V
•
Output signal inversion as an option
•
Mounting on recessed rectangular conduit box, 60.3 mm fixing centers
•
AC 24 V operating voltage
Building Technologies
Use
Control of the room temperature in individual rooms of ventilation or air conditioning
plants that are:
• Heated or cooled by single duct.
• Heated or cooled by single duct with electrical heater.
The RDU340 is suitable for use with VAV systems in connection with the VAV compact
controllers types G…B181.1E/3.
The RDU340 controls
• One DC 0…10 V actuator
• One DC 0…10 V actuator and AC 230V 1-stage electrical heater
Use in systems with:
•
•
•
•
Heating or cooling mode
Automatic heating/cooling changeover
Manual heating/cooling changeover
Heating and cooling single duct (single duct with electrical heater)
Functions
• Maintain room temperature via built-in temperature sensor or external room
temperature / return air temperature sensor
• Automatic or manual changeover between heating and cooling mode
• Select applications via DIP switches
• Select operating mode via the operating mode button on the controller.
• Display current room temperature or setpoint in °C and/or °F.
• Minimum and maximum setpoint limitation.
• Keypad lock (automatic and manual).
• Two multifunctional inputs, freely selectable for:
– Operating mode switchover contact (key card).
– Automatic heating/cooling changeover sensor.
– External room temperature or return air temperature
– Dewpoint sensor.
– Electric heater enable.
– Alarm input.
• Reminder to clean filters.
• Minimum and maximum limitation of air flow signal DC 0..10V
• Floor heating temperature limit.
• Reload factory settings for commissioning and control parameters.
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Applications
ON
1
2
Prior to snapping the front panel to the base, use the DIP switches on the inner side of
the front panel to commission the controller applications and the behavior of the output
signal.
DIP switch number
Application
Single duct heating or cooling (factory setting)
Single duct heating and cooling, with electrical heater
DC 0…10 V output signal normal (factory setting)
DC 0…10 V output signal inverted (see section
Fehler! Verweisquelle konnte nicht gefunden
werden.)
1
2
OFF
ON
n.a.
n.a.
n.a.
n.a.
OFF
ON
Note: During startup, the controller reloads the control parameter factory settings after
each DIP switch settings change.
RDU340
Operating Voltage
AC 24 V
3 pt
on/off
DC 0..10 V
--
9
9
Housing
Colour
Type reference
Infrared
receiver
Control output
LCD
Backlight
Type summary
white
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Equipment combinations
Type of unit
DC 0..10 V actuator
Type reference
Data Sheet
Cable temperature sensor
QAH11.1
1840
Room temperature sensor
QAA32
1747
SSA61...
4893
SSP61…
4864
SSB61...
4891
SQS65…
4573
STS61
4880
GQD161…
4605
Electrical actuator, DC 0..10V
(for radiator valve)
Electrical actuator, DC 0..10V
(for small valve 2,5 mm)
Electrical actuator, DC 0..10V
(for small valves 5.5 mm)
Electromotoric actuator, DC 0..10V
(for valves 5.5 mm)
Thermal actuator, DC 0..10V
(for small valves and radiator valves)
GDB161…
4634
GLB161…
GMA161…
4614
GEB161…
4621
GCA161…
4613
DC 0…10 V damper actuator
GBB161…
4626
GIB161…
GDB181.1E/3
3544
VAV compact controller
GLB181.1E/3
Accessories
Type of unit
Changeover mounting kit (50 pcs/package)
Adapter plate 82mm x 82 mm x 10 mm for conduit
Type reference
ARG86.3
ARG70.3
Data Sheet
1840
-
Ordering
When ordering, indicate both product number and name:
E.g. RDU340 room temperature controller
Order valve actuators separately.
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Mechanical design
The controller consists of 2 parts:
• Front panel accommodating the electronics, operating elements and built-in room
temperature sensor.
• Mounting base with the power electronics.
The rear of the mounting base contains the screw terminals. The base fits on a
rectangular conduit box with 60.3 mm fixing centers. Slide the front panel in the
mounting base and snap on.
Operation and settings
1
1.
Operating mode selector/Standby
2.
Adjust setpoint and control parameters
2
Display
2.
6
3
1
Display room temperature, setpoints and
control parameters.
Symbol used to display the current
room temperature
2
4
3.
Heating/cooling mode
Cooling mode
Heating mode,
Electrical heater active
7
5
4.
Additional user information
5.
Keypad lock active
6.
1.
Operating mode
Condensation in room (dewpoint sensor
active)
Standby / protected mode
Comfort mode
7.
Indicate alarm or reminder
Energy Saving mode
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Mounting and installation
Mount the room controller on a recessed rectangular conduit box with 60.3mm fixing
centers. 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
• Devices must be mounted on clean, dry indoor place and not be exposed to dripping
or splashing
Wiring
See the mounting instructions M3078 enclosed with the controller.
•
•
•
•
•
•
•
Comply with local regulations to wire, fuse and earth the controller.
Properly size the cables to electrical heater for AC 230 V mains voltage.
Isolate the cables of SELV inputs X1-M/X2-M if the conduit box carries AC 230 V
mains voltage.
Inputs X1-M or X2-M 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.
No metal conduits
No cables provided with a metal sheath
Disconnect from supply before opening the cover
Commissioning
Set the controller application via the DIP switches before snapping the front panel on
the mounting base.
After power is applied, the controller 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 controller is ready for commissioning by qualified HVAC staff. The control
parameters of the controller can be set to ensure optimum performance of the entire
system (see basic documentation P3078).
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
•
Setpoint and range
limitation
•
Recalibrate the temperature sensor if the room temperature displayed on the
controller 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.
Disposal
The device is classified as waste electronic equipment in terms of the European Directive 2002/96/EC (WEEE) and should not be disposed of as unsorted municipal waste.
The relevant national legal rules are to be adhered to. Regarding disposal, use the
systems setup for collecting electronic waste.
Observe all local and applicable laws.
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Technical data
Power supply
Outputs
Inputs
Operating voltage
Frequency
Power consumption
Control output Y10-G0
Resolution
Current
Control output Y21-L (N.O.)
Rating
Multifunctional input X1-M/X2-M
Temperature sensor input:
Type
Digital input:
Operating action
Contact sensing
Insulation against mains voltage (SELV)
Function input:
SELV AC 24 V ± 20 %
50/60 Hz
Max. 8 VA
SELV DC 0…10 V
39 mV
Max. ± 1 mA
AC 230 V
Max. 5(2) A
QAH11.1 (NTC)
Selectable (N.O./N.C.)
SELV DC 0...5 V/max 5 mA
4 kV, reinforced insulation
Selectable
External temperature sensor, heating/cooling changeover
sensor, operating mode switchover contact, dewpoint
monitor contact, enable electrical heater contact, alarm
contact
Operational data
Switching differential, adjustable
Heating mode
Cooling mode
(P30)
(P31)
Setpoint setting and range
Comfort mode
(P08)
Energy Saving mode
(P11-P12)
Standby
(P65-P66)
Multifunctional input X1/X2
Selectable 0…6
Input X1
Factory setting = 3 (P38)
Input X2
Factory setting = 2 (P40)
Environmental
conditions
Built-in room temperature sensor
Measuring range
Accuracy at 25 °C
Temperature calibration range
Settings and display resolution
Setpoints
Current temperature value displayed
Operation
Climatic conditions
Temperature
Humidity
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
Storage
Climatic conditions
Temperature
Humidity
2 K (0.5...6K)
1 K (0.5...6K)
21°C
(5...40 °C)
15°C/30°C (OFF, 5...40 °C)
8°C/OFF (OFF, 5...40 °C)
Operating mode switchover
Heat/cool changeover sensor
0…49 °C
< ± 0.5 K
± 3.0 K
0.5 °C
0.5 °C
As per IEC 721-3-3
Class 3K5
0 ...+ 50 °C
< 95 % r.h.
As per IEC 721-3-2
Class 2K3
− 25...+60 °C
< 95 % r.h.
Class 2M2
As per IEC 721-3-1
Class 1K3
− 25...+60 °C
< 95 % r.h.
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Standards
conformity
EMC directive
Low-voltage directive
2004/108/EC
2006/95/EC
N474
C-tick conformity to
EMC emission standard
Reduction of hazardous substances
Product standards
Automatic electrical controls for household and
similar use
Special requirements for temperature-dependent
controls
Electronic control type
General
Electromagnetic compatibility
Emissions
Immunity
Protective class
Pollution class
Degree of protection of housing
Connection terminals
Housing front color
Weight
AS/NSZ 4251.1:1999
2002/95/EC
EN 60730–1
EN 60730–2-9
2.B (microdisconnection on
operation)
IEC/EN 61000-6-3
IEC/EN 61000-6-2
II as per EN 60730
Normal
IP 30 to EN 60529
Solid wires or prepared
stranded wires
1 x 0.4…2.5 mm2
or 2 x 0.4…1.5 mm2
RAL 9003 white
0.220 kg
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Connection terminals
G
X1
M
L Y21
G0
SELV
X2
G, G0
L
Y21
Y10
X1, X2
Y10 G0
M
Operating voltage controller AC 24 V
Operating voltage for electrical heater
AC 230 V
Control output for electrical heater
Control output for DC 0…10 V actuator
Multifunctional input for temperature sensor
(e.g. QAH11.1) or switch
Measuring neutral for sensor and switch
Connection diagrams
Application:
G
N1
Y1
S1
QAH11.1 +
ARG86.3
Single duct
B2
S1
AC 24V
B2
X1
G
M
X2
L Y21
G0
Room temperature controller RDU340
DC 0-10V actuator for heating or cooling
Operating mode switch-over contact
(e.g. key card)
Heat/cool changeover sensor
Y10
G0
N1
Y1
G0
G - G0 AC 24 V
Application:
G
N1
Y1
E1
S1
QAH11.1 +
/ QAA32
Single duct with
electrical heater
AC 24V
S1
G
G0
X1
M
B2
X2
L Y21
Y10
G0
Room temperature controller RDU340
DC 0-10V actuator for heating or cooling
Electrical heater
Operating mode switch-over contact
(e.g. key card)
Heat/cool changeover sensor
N1
L
N
Y1
E1
G0
G - G0 AC 24 V
L - N AC 230 V
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Siemens
Building Technologies
RDU340 – Room Temperature Controllers
N3078en
11 July 2008
Dimensions
Dimensions in mm
10/10
© 2008 Siemens Switzerland Ltd.
Siemens
Building Technologies
RDU340 – Room Temperature Controllers
Subject to change
N3078en
11 July 2008
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