Technical Instructions
RCU61U Room Temperature Controller
Document Number 155-328P25
for CAV Systems
October 6, 2016
Page 8
Siemens Industry, Inc.
4 × 4-inch Electrical Wall
Box Mounting
An ARG70 wall plate adapter is required to mount an RCU61U controller to a 4 × 4-inch
electrical wall box. The ARG70 wall plate adapter is included with electrical wall box
mount models.
1. Insert a small screwdriver into the bottom of the controller and press in the tab
located in center of the controller.
2. Lift the bottom of the controller from the controller base and push up to remove the
cover from the two tabs located at the top of the controller base.
3. Separate the controller base (5) from the controller (6).
4. Using the four screws provided, fasten the wall box adapter (3) to the plaster ring
(2). (Plaster ring supplied by others.)
5. Flex the adapter mask (4) and snap it in place inside the wall box adapter (3).
6. Pull wires through the plaster ring (2).
7. Fasten the controller base (5) to the wall box adapter assembly (3) and (4) with the
two screws provided.
8. Follow
Drywall Mounting
Steps 6
through
14
.
The installation is now complete.
Figure 10. 4 × 4-inch Electrical Wall Box Installation.
1
Electrical wall box
2
Plaster ring
3
Wall box adapter *
* Included with ARG70
4
Adapter mask *
5
Controller base
6
Controller
