Technical Instructions
RAA Series Room Thermostats
Document Number 155-519P25
March 2, 2007
Page 8
Siemens Industry, Inc.
Maintenance
The room thermostat is completely maintenance-free. If inoperable, replace entire unit.
WARNING:
High voltage. Disconnect power before servicing. Metal part is not
grounded.
Wiring Diagrams
Heating Mode
Cooling Mode
D1 Heating device
D2 Cooling device
L
Operating voltage
N
Neutral
N1 Room thermostat
T
Thermal switch
W
Heating control output
Y
Cooling control output
Figure 5. RAA10…and RAA20… Wiring.
Operating Diagrams
Heating Mode
Cooling Mode
T
Room temperature
SD Switching differential
SP Room temperature
setpoint
W
Heating output signal
Y
Cooling output signal
Figure 6. RAA10… and RAA20 Operating.
Dimensions
Dimensions in inches
(millimeters)
Figure 7. RAA10… Unit.
