Noritz ecoTOUGH NRC98-DV-NG Installation Manual page 11

Filling the condensate trap with water
The condensate trap can be filled before connecting the vent pipe.
Filling the condensate trap before vent pipe installation.
DANGER
Please follow one of the procedures described below to ensure that the condensate trap is filled with water.
1) Fill the condensate trap by pouring approx. 30 oz.(850ml) of water into the exhaust accessory on the top
of the appliance as illustrated below.
Or, if the vent pipe has already been installed:
2) After installing the drain pipe, make sure that the area around the appliance is well ventilated; open a
window or a door if necessary.
Then, operate the unit and verify that condensate is coming out of the drain pipe.
(During normal use of the water heater, condensate will begin to discharge from the drain pipe within
15 minutes of use. However, depending on the season and/or installation site conditions, it may take longer.)
Note: The condensate discharged from the water heater has a pH level of approximately 2-3.
If required by local code, the condensate must be neutralized prior to disposal into the sewer system.
Refer to pages 26-27 for additional details.
Prior to initial start up, make sure that you fill the condensate trap with water.
This is to prevent dangerous exhaust gases from entering the building.
Failure to fill the condensate trap could result in severe personal injury or death.
Intake
30 oz.
850ml
Exhaust
11