Siemens RDF340 Series Basic Documentation

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Siemens RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation CE1P3076.en
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For better temperature control performance with 2-pos electrical heater, we
suggest to set the switching differential heating (P30) to 1K.
The diagram below shows the control sequence for continuous PI control.
Heating mode
(automati
c
change
over=heating
or heat
ing only)
Cooling mode
(man. /auto. changeover=cooling or coo
l
ing only)
Heating mode with manual changeover
(P01=2)
(man
ual changeover
=h
eating)
T[°C] Room temperature
W Room temperature setpoint
V1 Control command “Valve”
E1 Control command “electrical heater”
XpH Proportional band “Heating”
XpC Proportional band “Cooling”
X
dz
Dead zone
w
D
Setpoint differential
· The diagrams only show the PI thermostat’s proportional part.
· For the fan sequence see section 4.8.
Note
Control sequence
modulating output
Notes:

Siemens RDF340 Series Specifications

General

Brand	Siemens
Model	RDF340 Series
Category	Thermostat
Language	English