User Manual

ManualsBrandsSiemens ManualsThermostats (temperature controller with sensor)Room Temperature Controllers RCU60../61..

CE1N3046en

22.08.2003

Siemens Building Technologies

HVAC Products

046

RCU60 RCU60.1

RCU61 RCU61.1

Room Temperature Controllers

RCU60../61..

for CAV and VAV systems

Modulating P-control

DC 0...10 V output for cooling

ON / OFF or PWM outputs AC 24 V for heating (RCU60 / 60.1)

Three-position output AC 24 V for heating (RCU61 /61.1)

Operating modes: normal operation, energy saving and standby

Operating mode selector (RCU60.1 / 61.1)

Active DC 0...10 V input for setpoint shifting

Operating mode changeover input for remote control

Adjustable minimum limitation for cooling output

Operating voltage AC 24 V

Use

Control of the room temperature in individual rooms of ventilation or air conditioning

plants that are heated or cooled. The RCU6... are especially suited for use in VAV

systems with auxiliary heating in connection with VAV compact controllers type

GLB181.1E / 3 and GDB181.1E / 3.

For the control of the following pieces for equipment:

• VAV compact controllers

• Valve actuators

• Air damper actuators

Summary of content (8 pages)

PAGE 1
3 046 RCU60 RCU61 RCU60.1 RCU61.1 Room Temperature Controllers RCU60../61.. for CAV and VAV systems Modulating P-control DC 0...10 V output for cooling ON / OFF or PWM outputs AC 24 V for heating (RCU60 / 60.1) Three-position output AC 24 V for heating (RCU61 /61.1) Operating modes: normal operation, energy saving and standby Operating mode selector (RCU60.1 / 61.1) Active DC 0...
PAGE 2
Functions The controller acquires the room temperature with its integrated sensor and maintains the setpoint by delivering control commands. The proportional band or the switching differential can be 1 or 4 Kelvin in heating mode and 0.5 or 2 Kelvin in cooling mode (selectable with DIP switch no. 4). Function diagram “Heating-cooling“ with minimum limitation cooling RCU60 and 60.1 2 P.
PAGE 3
Q [%] 100 W2 0 W1 W 12,5K T [°C] 12,5K (K) 0 3041D04 +12,5K 5 10 (V) -12,5K W W1 W2 (K) (V) Original setpoint Highest setpoint at 10 V input Lowest setpoint t at 0 V input Total setpoint shift Input voltage . . The setpoint shift is limited within the range of the unit of 8 °C (frost protection) to 30 °C. Energy saver The room temperature setpoint can be limited in increments of 1 Kelvin by making use of the minimum and maximum limitation facility.
PAGE 4
Ordering When ordering, please give name and type reference, e.g. room temperature controller RCU60. Valve and air dampers actuators are to be ordered as separate items. Equipment combinations Type of unit Type reference Data sheet VAC compact controllers GDB181.1E/3 GLB181.1E/3 3544 Motoric actuator (radiator valve) SSA81... 4893 Motoric actuator (small valve 2,5 mm) SSP81… 4864 Motoric actuator (small valve 5,5 mm) SSB81...
PAGE 5
3041Z01 Operating and setting elements 1 4 2 3 1 Legend 2 3 4 Operating mode selector (RCU60.1 / 61.1) (normal operation, energy saving mode and standby) Room temperature setpoint knob Setting facility for minimum setpoint limitation (in increments of 1 Kelvin) Setting facility for maximum setpoint limitation (in increments of 1 Kelvin) Set of DIP switches of RCU60 and RCU60.1 DIP switch no.
PAGE 6
Accessories Description Adapter plate 120 x 120 mm for 4“ x 4“ conduit boxes Adapter plate 96 x 120 mm for 2“ x 4“ conduit boxes Adapter plate for surface wiring 112x130 mm Type reference ARG70 ARG70.1 ARG70.2 Notes Check the settings of DIP switches no. 1 through no. 8 of the RCU60 / RCU60.1 and of DIP switches no. 1 through no. 6 of the RCU61.0 / RCU61.1. If setpoint limitation is required, use the minimum and maximum limitation facility (energy saver).
PAGE 7
Environmental conditions Setpoint «Energy saving mode » cooling Setpoint «Standby » Temperature setpoint shift Control output Y10 Voltage Current Control outputs Y1, Y2 Voltage Current Cycle time PWM selectable for Y1 Status input D1 and GND Contact sensing Signal input B1 Setpoint shift of 12.5 K Neutral position (no setpoint shift) Max. cable length with copper cable 1.5 mm2 For signal input B1 (RCU60 / 60.1 / 61 / 61.1) For status input D1 (RCU60 / 60.1 / 61 / 61.
PAGE 8
RCU61 and RCU61.1 B1 D1 GND M G0 Y1 G Y2 Y10 G0 G, G0 Operating voltage AC 24 V B1 Signal input “Setpoint shift“ D1,GND Signal input for potential-free operating mode changeover switch Y1/ G Output signal “Opening“ Y2 / G Output signal “Closing“ Y10 / G0 Control signal DC 0...