Initial Operation - Noritz NC1991-OD-NG Owner's Manual

Initial Operation
Before the first use of your water heater, make the following preparations.
1 through 4
Follow steps
1
Open the water supply valve.
CLOSED
2
Open a hot water fixture to confirm that
water is available, and then close the
fixture again.
3
Open the gas supply valve.
4
Turn on the power.
Do not touch with wet hands.
10
.
OPEN
Hot water fixture
(Ex. NC1991-OD)