Noritz EZ98DV User Manual

45
9 Connecting the Condensate Drain
Condensing Water Heater
• In order to ensure proper operation of this Water
Heater, need to install the condensate drain pipe
to drain acidic condensate which produces during
operation.
• The pH level of the condensate is approximately
2-3.
An external neutralizer must be installed on the
condensate drain piping prior to disposal when
required by local code or when the condensate
could cause damage.
NOTE
Damage caused by improperly
handled condensate is not covered by
the Noritz America Limited Warranty.
Sizing of the condensate drain piping
In order to drain the condensate, a 1/2 in. threaded
fitting is provided at the base of the Water Heater.
NOTE
Do not reduce the size of the fitting
or the condensate drain piping to less
than 1/2 in.
Location of the condensate drain piping
In climates where temperature routinely reaches
below freezing, do not drain the condensate to the
outdoors.
If the condensate drain pipe freezes during cold
weather, the pipe will not drain condensate and the
Water Heater will stop operating.
Long runs or applications where the nearest drain
is above the Water Heater
Require the use of a condensate pump.
Size the pump to allow for a maximum condensate
discharge of 2 GPH from the Water Heater.
Material of the condensate drain piping
Use plastic pipe, such as PVC, for the drain line.
NOTE
Do not use steel, black iron, or any
other material which can corrode
when placed into contact with acidic
condensate.
Floor drain
The end of the
co
ndensate drain
pipe mus
t have
an air
gap.
MAINTAIN
CLEARANCE
1/2 in. PVC pipe
DO NOT ADD
ANY VALVES
Slope the condensate
drain piping toward the
inside floor drain.
[Condensate drain piping to floor drain]
[Condensate drain piping with pump]
The end of the condensate drain
pipe must have an air gap.
3/8 in. ID tubing*
* Install tubing according to pump
manufacturer’s instructions.
Condensate
pump
DO NOT ADD
ANY VALVES
1/2 in. PVC pipe
1/2 in. PVC elbow
Slope the condensate drain
piping toward the inside
condensate pump.
[If an external neutralizer is installed]
Periodic replacement of the neutralizing agent will
be required.
Refer to the instructions supplied with the
neutralizer for suggested replacement intervals.
Floor drain
Condensate drain piping
Make the condensate drain piping run as short as
possible.
Condensate drain pipe
NOTE
Do not make a trap.
Connecting the Condensate Drain

Noritz EZ98DV Specifications

General

Brand	Noritz
Model	EZ98DV
Category	Water Heater
Language	English