RCU61U Room Temperature Controller
Technical Instructions
For CAV Systems
Document Number 155-328P25
October 6, 2016
Siemens Industry, Inc.
Page 5
Table 2. DIP Switches.
DIP Switch
No.
Meaning
Position ON
Position OFF
1
Operating mode changeover
using an external switch
Changeover between
normal operation and energy
saving mode
Changeover between normal
operation, energy saving mode,
and standby
1
2
Operating action of switch for
external operating mode
changeover
Changeover activated when
contact of switch is closed
(NO)
1
Changeover activated when
contact of switch is open
(NC)
3
Standby
OFF
Frost protection mode (heating
output ON at a setpoint of 46°F
(8°C)
1
4
P-band
2°F (1°C) in heating mode
1
1°F (0.5°C) in cooling mode
1
7°F (4°C) in heating mode
3.5°F (2°C) in cooling mode
5
Dead zone (Xdz)
3.5°F (2°C)
1
9°F (5°C)
6
Cooling signal output in energy
saving mode
Active
Inactive
1
1
Factory setting
Accessories
ARG70
Adapter Plate for 2 × 4-inch or 4 × 4-inch conduit boxes
QAH11.1
Changeover/remote sensor
Notes
•
Check the settings of DIP Switches No. 1 through No. 6 and change them, if
required.
•
After applying power, the controller resets, which takes about three seconds. It will
then be ready to operate.
•
The unit can be located on a wall of the room to be conditioned. Do not mount in
direct sunlight or near other heat or refrigeration sources.
•
Mounting height is approximately 47 inches (120 cm) above the floor. See Figure 6.
•
The connecting wires can be run to the controller from a recessed conduit box.
•
Only authorized personnel should open the controller.
Figure 6. Acceptable Mounting Height.
