User Manual

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Siemens RCU50... Room Thermostat CE1N3045en
Building Technologies 2017-11-15
Technical data
Operating voltage
AC 24 V
± 20 %
Frequency 50/60 Hz
Power consumption max. 6 VA
No internal fuse
External preliminary protection with max. C 10 A circuit breaker in the supply line
required under all circumstances
Setpoint setting range 8...30 °C
Max. control deviation at 25 °C max. ° 0.7 K
P-band in heating mode
RCU50 and RCU50.1 (selectable)
RCU50.2 (fixed)
1 K or 4 K
4 K
P-band in cooling mode
RCU50 and RCU50.1 (selectable)
RCU50.2 (fixed)
0.5 K or 2 K
2 K
Setpoint «Energy saving mode » heating 16 °C
Setpoint «Energy saving mode » cooling 28 °C
Setpoint frost protection 8 °C
Setpoint shift temperature ±12.5 K
Control output Y10
Voltage
Current
DC 0...10 V
± 1mA
Status input D1 and GND (RCU50 / 50.1)
Contact sensing DC 6-15 V / 3-6 mA
Status input B1 (RCU50 / 50.1)
Setpoint shift of 12.5 K
Neutral position (no setpoint shift)
DC 0...10 V
DC 5 V
Changeover- status input B2 QAH11.1, safety class II
NTC resistor 3 kΩ at 25°C
Max. cable length with copper cable 1.5 mm
2
For signal input B1 / B2 (RCU50 / 50.1)
For signal input D1 (RCU50 / 50.1)
80 m
80 m
Operation
Climatic conditions
Temperature
Humidity
to IEC 60721-3-3
class 3K5
0...∗ 50 °C
; 95 % r.h.
Transport
Climatic conditions
Temperature
Humidity
Mechanical conditions
to IEC 60721-3-2
class 2K3
, 25...+70 °C
<95 % r.h.
class 2M2
Storage
Climatic conditions
Temperature
Humidity
to IEC 60721-3-1
class 1K3
, 25...+70 °C
<95 % r.h.
Power supply
Functional data
Environmental
conditions