Hold the heat exchanger up against where you want to mount it, and then use the pencil to outline the heat exchanger. If the heat exchanger is going to be mounted on a vertical surface, set it on the floor while you install the initial mounting brackets.
Mount two Z brackets on the bottom edge of the heat exchanger outline. The brackets must be screwed or bolted to a solid support, like a wall stud, and need to be placed about 25 percent from the right and left edges of the outline. Use the screws and screwdriver or bolts to mount the brackets.
Mount the end of the spanner straps on the left side of the outline using the screws and screwdriver or the bolts.The straps should be evenly spaced along the height of the heat exchanger.
Set the heat exchanger back in place. The bottom of the heat exchanger should set in the groove formed by the Z brackets and be primarily supported by these brackets.
Mount the right end of the top spanner strap. Pull the strap across the top of the heat exchanger, then screw the free end into the wall. This will prevent the heat exchanger from falling forward. Repeat the process for the bottom strap.
Attach the tubing to the heat exchanger. It is now ready to use.