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RCU61U Room Temperature Controller
For CAV Systems
2 × 4-inch Electrical Wall
Box Mounting
Siemens Industry, Inc.
An ARG70 wall plate adapter is required to mount an RCU61U controller to a 2 × 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 the 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 two screws provided, fasten the wall box adapter (3) to the wall box (1).
5. Flex the adapter mask (4) and snap it in place inside the wall box adapter (3).
6. Fasten the controller base (5) to the wall box adapter assembly (3) and (4) with the
two screws provided.
7. Follow Drywall Mounting, Steps 6 through 14.
The installation is now complete.
Figure 11. 2 × 4-inch Electrical Wall Box Installation.
1
Electrical wall box
3
Wall box adapter *
4
Adapter mask *
* Included with ARG70
5
Controller base
6
Controller
Technical Instructions
Document Number 155-328P25
October 6, 2016
Page 9
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