Rheem 871 Series Owner's Manual And Installation Instructions page 65

Wiring installation:
Penetrate the wall with a 30-35 mm hole at the controller location.
1.
2. Install the supplied cable between the location of the controller and the water heater.
Remove the base plate from the controller.
3.
Peel off one side of the adhesive paper from the foam packing and adhere to the back face of the base
4.
plate. This is the side without the projections.
Peel off the remaining adhesive paper from the foam packing.
5.
Draw the cable through the central hole in the base plate.
6.
Fix the base plate to the wall using suitable screws and wall anchors.
7.
Ensure the projections in the base plate are pointing upwards.
8. Plug the controller wire into the Bathroom controller cable.
Place the controller over the base plate.
9.
Ensure the projections in the base plate fit into the housings in the controller.
Fix the controller to the base plate at the bottom of the controller, using the screw provided.
10.
Proceed to "Connecting the Controller(s) to the Water Heater"
11.
controller
controller
screw
projections
cable
cable connectors
Bathroom Controller (Standard and Deluxe) Installation
INSTALLATION – CONTROLLERS
on page 66.
adhesive paper
screws base plate
65
suitable wall
anchors
wall
penetration
foam packing