Rdf302 Flush-Mount Room Thermostat for Rectangular Conduit Box with Modbus Communications, 2-/4-Pipe Fan Coils or Dx Type Equipment Siemens Rdf302

Siemens four tube embedded room temperature controller with LCD display
RDF300,RDF300.02,RDF300.02/SL,RDF340
RDF400,RDF400.01,RDF400.01/SL
Used for fan coil equipment with two tubes, two tubes with live heating, and four tubes, for compressor control of direct expansion equipment.
RDF300/RDF400 operating voltage AC230V, on/off or three position control output
RDF340... Operating voltage AC24V, DC 0-10V control output
Three speed or single speed fan control output
Two multifunctional inputs that can be used for hotel door cards, external sensors, etc
• Working modes: Comfort mode, Energy saving mode, and Standby mode (Protection mode)
• Automatic or manual hot and cold switching
Adjustable debugging and control parameters
Limit the maximum and minimum set values
Standard 86 electrical junction box installation, with fixed hole spacing of 60.3 millimeters
Additional features of RDF300.02
LCD backlight
Additional features of RDF400.01
LCD backlight
• Infrared remote control signal receiving function
• Automatic timing mode (8 programmable time periods, weekly time program)
purpose
Can be used for temperature control in individual rooms and areas, including:
Two tube fan coil unit for heating or cooling
Fan coil unit with two electric heaters for heating or cooling
Four tube fan coil unit for heating and cooling
• Compressor direct expansion equipment for heating or cooling
• Compressor with electric heating, direct expansion equipment for heating or cooling
• Compressor direct expansion equipment for heating and cooling
Temperature controller RDF300.../RDF400... Control:
A single speed or three speed fan
A water valve actuator controlled by one or two on/off signals, or
A water valve actuator and a primary electric heater controlled by an on/off signal, or
A three position controlled water valve actuator, or
• Primary or secondary compressor in direct expansion equipment
Temperature controller RDF340... Control:
A single speed or three speed fan
One or two 0-10V signal controlled water valve actuators, or
A 0-10V signal controlled water valve actuator and an adjustable electric heater (0-10V)
Applicable to the following systems:
Single heating or single cooling system
• Automatic cold/hot switching
• Manual cold/hot switching
• Refrigeration and heating (e.g. four pipe fan coil system)
model
Model Power Control Output Time Programming LCD Backlight Remote Control Accepting Shell Color
RDF300 AC230V Switch/Three Position None None None None White
RDF300.02 AC230V Switch/Three Position No Yes No White
RDF300.02/SL AC230V switch/three position with or without silver
RDF400.01 AC230V switch/three position with white color
RDF400.01/SL AC230V switch/three positions available in silver
RDF340 AC230V DC0... 10V None None None None None White
connection
RDF300/RDF300.02/RDF340
 
L. N AC 230 V power supply
Q1 control output, wind speed 1, AC 230 V
Q2 control output, wind speed 2, AC 230 V
Q3 control output, wind speed 3, AC 230 V
Y11, Y21 control output, valve AC230V, (normally open contacts for normally closed valves) or for compressor, electric heater output
X1, X2 multifunctional inputs, used for temperature sensors (such as QAH11.1) or dry contact switches
M input common terminal, used for sensors and switches
RDF400/RDF400.01
G. G0 AC24V temperature controller power supply
L fan power supply AC230V
Q1 control output, wind speed 1, AC230V
Q2 control output, wind speed 2, AC230V
Q3 Control output "Fan speed 3 AC 230 V control output, wind speed 3, AC230V
Y10, Y20 control output, 0-10V
X1, X2 multifunctional inputs, used for temperature sensors (such as QAH11.1) or dry contact switches
M input common terminal, used for sensors and switches
Operating voltage        AC 230 V
Power consumption     7 VA
Setpoint setting range    5...40 °C
Switching differential     0.5…6 K
Communication          Bus: Modbus RTU (RS 485)
Analog inputs, number    2
Relay outputs            Fan: N.O. contacts, non-floating , Valve: N.O. contacts, non-floating
Relay outputs, number    5
Relay output, switching voltage   A C 230 V
Relay output, switching current    5 (2) A
Type of fixing                     Recessed rectangular conduit box BS4662 with fixing centres of 60.3 mm
Degree of protection              IP30
Dimensions (W x H x D)         86 x 86 x 57 mm