11
Initial Operation
Before the rst use of your water heater, do the following:
Follow steps
1 through 4
.
1
Open the water supply valve.
Open a hot water xture to conrm that
water is available, and then close the
xture again.
3
Open the gas supply valve.
Hot water xture
2
Plug into power.
CLOSED
4
OPEN
Donottouchwithwethands.
(Ex. NRC711-DV)
Please check the following when you use the water heater for the rst time after the installation.
Usually, the hot water is supplied by opening the hot water if gas, water, and electric power are
supplied (if there is a remote controller, it should be turned ON).