User's Manual

31
Installing the ERU
Tools and materials
Make sure you have the following items on hand before you begin.
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To install the mounting assembly on a wall made of wood or lap
siding
1
Locate the center of a stud if:
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You are mounting the ERU on lap siding
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You are mounting the ERU on wood siding that is less than 2.5 cm (1 inch)
thick
ATTENTION:
Do not mount the ERU near the edge of a stud. Make
sure you mount it on the center of a stud.
2
Hold the mounting bracket-and-pipe assembly in a position in which it’s center
line is centered on a stud or solid wood surface.
3
Use a level to verify that the center line of the mounting bracket is perfectly
vertical.
4
Use a pencil or a piece of chalk to mark the position of the holes in the mounting
bracket:
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If you are installing the ERU on a stud, mark the locations of the two center
holes, which are positioned over the stud.
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If you are not installing the ERU on a stud, mark the positions of the four holes
that are located in the four corners of the mounting bracket. Do not mark the
center holes.
5
Remove the mounting bracket-and-pipe assembly.
6
Drill a 3/16-inch hole in each of the locations you marked.
Materials Tools
Two to four 5/16-inch x 2-inch lag screws Electric drill with a 3/16-inch wood bit
Two to four 5/16-inch washers Carpenter’s level
Screwdriver
Hammer
11-mm (7/16-inch) open-end or box-end
wrench or a small adjustable wrench
Pencil or chalk