Noritz EZTR40 - Unit Overview and Initial Setup; Unit Components

8
Thecondensingtankless
gas water heater
dischargescondensate.
When heat from the exhaust gas
is collected within the secondary
heat exchanger, condensation
occurs from moisture in the exhaust
gas and the resulting water is
discharged from the drain pipe
(approx. 0.8 gallons/hour (3 liters/
hour) maximum). It is not a water
leak. Do not plug or block the drain
line as it must always be allowed to
freely ow.
Note : The condensate discharged
is acidic with a pH level of
approximately 2-3.
A condensate neutralizer
may be required by local
code prior to disposal.
Condensate comes
out from here.
IndoorWallMounted,PowerVentedModel
* Theaboveillustrationshowsanexampleofinstallation.
The exact installation conguration may be slightly different.
Unit
FrontCover
Unit Components
Drain Pipe
Discharges the
condensate.
GasSupplyValve
Displayed during
power "ON" or
combustion. (Page9)
Two or three digit-
number is displayed
when a failure occurs.
(Page 24)
DisplayWindow
The condensing
tanklessgaswater
heater tends to show
whitesteam.
After the exhaust gas passes
through the secondary heat
exchanger, it becomes low in
temperature and moisture rich
which tends to produce steam
at the vent discharge terminal.
This is a normal occurrence.
Air Inlet Filter
During combustion, white
steam may often be seen.
This is normal.
WaterSupplyValve
PressureReliefValve
WaterDrainValve
(with Water Filter)
(Inside Water Inlet)
(Page 22)
Flue Collar
SBB809KT_001_015_E_J.indd 8 2014/08/01 16:33:18