8
Illustration
7.
Installation
Check
4. Drill holes for the remaining four screws.
5. Hang the unit again by the fi rst screw, and then
insert and tighten the remaining four screws.
6. Take waterproofi ng 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 earth-quakes.
Securing to the wall
Mounting Bracket
(upper)
Tapping Screw
Location of Screw Hole
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.
• 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
damaged and may become highly dangerous.
• Install the unit on a vertical wall and ensure that it is level.
Locating Screw Holes
Locating Scre
w Holes
Mounting
Str
ucture
Caution
• When installing with bare hands,
take caution to not infl ict injury.
• Be careful not to hit electrical
wiring, gas, or water piping while
drilling holes.
Item
Installations at Ele
vations
Abo
ve
610m.
• Adjust the dip switches as illustrated in the table to
the right if this water heater is installed at an altitude
of 610m or higher.
• Disconnect power to the water heater before changing
the dip switches. Failure to perform this step will
result in a "73" code displayed on the operation panel
and a cease in operation. If this occurs, disconnect,
then reconnect power to the water heater to reset the
system.
* Do not change any other dipswitches.
* High elevation adjustment.
1
611 - 1,220m
0 - 610m
ON=
OFF=
