7. Installation
Securing to the wall
• | The weight of the device will be applied to the wall. If the strength of the wall is not suffi- |
| cient, reinforcement must be done to prevent the transfer of vibration. |
• Do not drop or apply unnecessary force to the device when installing. Internal parts may | |
Be sure to do • | be damaged and may become highly dangerous. |
Install the unit on a vertical wall and ensure that it is level. | |
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Item
Locating Screw Holes
Mounting
Structure | |
Elevations | (2,000'). |
Installationsat | Above610m |
Check
CAUTION 
•When installing with bare hands, take caution to not inflict injury.
•Be careful not to hit electrical wiring, gas, or water piping while drilling holes.
1.Drill a single screw hole, making sure to hit a stud.
2.Insert and tighten the screw and hang the unit by the upper wall mounting bracket.
3.Determine the positions for the remaining four screws (two for the top bracket and two for the bottom), and remove the unit.
4.Drill holes for the remaining four screws.
5.Hang the unit again by the first screw, and then insert and tighten the remaining four screws.
6.Take waterproofing measures so that water does not enter the building from screws mounting the device.
•Make sure the unit is installed securely so that it will not fall or move due to vibrations or earthquakes.
•If this water heater is being installed at an elevation of 610m (2,000') or higher, disconnect the connector la- beled "High Elevation Disconnect" as illustrated on the right. This connector is located inside the unit.
•Disconnect power to the water heater before discon- necting this connector. Failure to perform this step will result in a "73" code displayed on the remote controller and a cease in operation. If this occurs, disconnect, then reconnect power to the water heater to reset the system.
Illustration
Location of Screw Hole
Mounting Bracket (upper) 
Locating Screw Holes
Tapping Screw
ELEVATION
DISCONNECT
HIGH
12
