User Manual

Siemens Building Technologies Application : 31 RWD82/31 – 04.2001
HVAC Products RWD82 1
RWD82/31
RWD82 Universal Controller
Application 31
Remote set point
Room temperature control
Hot water control valve - 3 pos
24Vac control system
Control ( P or PI )
Room temperature control
Proportional control ( 3 position ) of the hot water valve.
Remote set point adjustment
Optional day / night set point adjustment .
S1
X1
X2
D1
Q1
Q2
CP
........RWD82.......
M1
HCV
RWD82/31
X1
X2
S1
Q1
Q2
HCV
PC
Room temperature sensor
Remote set point adjuster
Time clock or switch
Opening output for HCV
Closing output for HCV
3 - position hot water control valve.
Personal computer
X1
Universal analogue input - main sensor
Auxiliary analogue input
Digital input
Digital output
Digital output
Communication port
T
X2
R
Room temperature sensor can be selected as Ni1000, Pt1000, or active sensor.
Adjustable proportional band of 3-position output Q1, Q2.
Integral action function selection and adjustment.
Timing of 3-position valve actuator
24Vac controller supply voltage
24Vac three position control valve
Remote set point adjustment via auxiliary analogue input X2.
Day / night set points can be selected via time clock or switch.
Supplemental features
Control
Operating modes

Summary of content (3 pages)