Dux 21ENB5L - Operation and Features; Initial Operation Steps

Owner's Guide
12
Part: XXXXX Rev XX
Initial Operation
Before the first use of your water heater, make the following preparations.
Follow steps
1 through 4
1
2
3
4
Open the water supply valve.
CLOSED OPEN
Open a hot water fixture to confirm that
water is available, and then close the
fixture again.
Hot water fixture
Open the gas supply valve.
Turn on the power.
Ex. 21ENB5N