Siemens RDF301.50 Series Basic Documentation

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Siemens RDF301, RDF301.50..., RDF600KN, RDF600KN/S Basic Documentation CE1P3171en
Building Technologies 2017-12-07
The diagrams below show the control sequence for 2-position control.
Heating mode with manual selection
(P01 = 2)
Cooling mode with manual selection
(P01 = 2)
Y
1
0
w
3
0
7
6
D
0
1
T[°C]
½ SDH ½ SDH
Y1
Y
½ SDC
1
0
½ SDC
w
3
0
7
6
D
1
3
T[°C]
Y2
Heating and cooling mode (P01 = 04)
Y
½ SDC
1
0
½ SDC
w
3
0
7
6
D
1
1
T[°C]
Y2
½ SDH ½ SDH
Y1
½ x
dz
½ x
dz
T[°C] Room temperature
w Room temperature setpoint
Y1 Control command "Valve" or "Comp." (H)
Y2 Control command "Valve" or "Comp." (C)
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
X
dz
Dead zone (P33)
∂ The diagrams only show the PI thermostat’s proportional part.
∂ For the fan sequence see section 3.8.
Setting the sequence and the control outputs
Refer to section 3.4, section 3.6.1, and section 3.7.
3.6.6 Chilled / heated ceiling and radiator applications*
For chilled / heated ceiling and radiator,
∂ set the corresponding basic application
∂ disable the fan (P52)
The following applications are available:
Application for
chilled / heated ceiling, radiator
Set basic application
See
section
Sequence
s
Chilled / heated ceiling with
changeover
2-pipe 3.6.3
H (
\
)
C ( / )
Chilled / heated ceiling & el heater
(cooling only: disable el heater
via P13)
2-pipe and electric heater 3.6.4
El H + H ( 6
\
\
)
El H + C ( 6 \ / )
C ( / )
Chilled ceiling and radiator
4-pipe 3.6.5
H + C (
\
/
)
* Not applicable for RDF301 and RDF301.50.
ON/OFF control
Note:

Siemens RDF301.50 Series Specifications

General

Brand	Siemens
Model	RDF301.50 Series
Category	Thermostat
Language	English