User's Manual
Table Of Contents
- Important Safety Instructions
- Overview
- The ERU assembly
- Do you have everything?
- Safety precautions
- Introduction
- Installing the ERU
- Installation overview
- Installation guidelines and requirements
- Estimating cable requirements
- Assembling the mounting bracket and pipe
- Installing the ERU on solid wood or lap siding
- Installing the ERU on brick or poured concrete
- Installing the ERU on a cinder-block or hollow wall
- Installing the ERU under the eaves
- Installing the ERU on a roof
- Attaching the ERU to the mounting assembly
- Routing and grounding the exterior cables
- Routing cable to the SOMAport
- Troubleshooting
43
Installing the ERU
3
Use a carpenter’s level to make sure the center line of the bracket is perfectly
horizontal.
4
Use a pencil or a piece of chalk to mark the positions of the four holes that are
located in the four corners of the mounting bracket.
5
Remove the mounting bracket-and-pipe assembly.
6
Drill a 3/16-inch hole in each of the locations you marked.
7
Fill the holes you drilled with silicone sealant.
8
Hold the mounting bracket-and-pipe assembly over the holes.
9
Insert a 5/16-inch x 2-inch lag screw in each of the holes to attach the mounting
bracket to the roof.
10
Tighten the screws to secure the mounting bracket-and-pipe assembly in place.
11
Use a level to see if the short end of the mounting pipe is pointing straight up.
If it is not perfectly vertical:
i
Use a wrench to loosen the three bolts that secure the mounting bracket to
the pipe.
ii
Grasp the mounting pipe and rotate it until the short end of the pipe is pointing
up and is perfectly vertical.
iii
Tighten the three bolts to hold the mounting pipe securely in a vertical
position.
12
Seal the mounting bracket with roof sealant.
13
Attach the ERU to the mounting assembly as described in the section
“Attaching the ERU to the mounting assembly” on page 44.