www.usa.siemens.com/hvaccomponents
Thermostats
A-51
Description
The RCU61U Room Temperature Controllers are designed
speci
fi
cally for Constant Air Volume and Variable Air
Volume Systems.
Features
• Modulating
P-control
• 0 to 10 Vdc output for cooling
• Three-position output 24 Vac for heating
• Operating modes: normal, energy saving and standby
• Active 0 to 10 Vdc input for remote setpoint shifting
• Operating mode changeover input for remote control
• Adjustable minimum limitation for cooling output
• Operating voltage 24 Vac
• Ergonomic
design
• Dual Fahrenheit/Celsius scale
Applications
Controlling individual room temperature in HVAC
installations that are heated or cooled, the RCU61U
Temperature Controllers are suited for use with VAV
systems with auxiliary heating with VAV compact
controllers, valve actuators, and air damper actuators.
RCU61U Room Temperature Controller.
Function Diagram
Key
T
Room
Temperature
Y2, Y10
Output
Percentage
W
Room
Temperature
Setpoint
XpH
Proportional Band Heating
XpK
Proportional Band Cooling
VR
0 to 100% Minimum Limitation
of Cooling Output
Room Temperature Controllers
for CAV and VAV Systems
RCU61U
