FLOW
Condensate Neutralizer
Installation Instructions
Rev.
5/22
• Mount as per the installation diagram below (see Figure 1). Check that the neutralizer is upright in the proper
position as shown in the above diagram. The neutralizer should be installed after the trap. Ensure that the
condensate will flow freely from the appliance drain into the neutralizer then to an approved drain by applying
sufficient slope to the drain pipe.
• Access to the discharge is necessary for proper maintenance in order to check the effectiveness of the
neutralizing media using pH test strips.
• If there is no gravity drain available, install a condensate removal pump designed for use on condensing
boilers and water heaters.
The condensate pump must be equipped with an overflow switch to prevent operation
of the appliance due to failure.
•
The float should be down during normal operation (see Figure 2). If flow in the neutralizer becomes restricted, the
float will rise and lock in position, indicating that the media should be cleaned or replaced (see figure 3). After
replacing the media, reset the float by pressing it back to the down position
.
•
Monitor the cleanliness, level of the neutralization media, and pH level in the neutralizer monthly. Remove any
precipitate coating or debris found to prevent blockages. Check the pH level at the outlet of the neutralizing
kit using a suitable pH test strip paper or an electronic pH meter for precise measurement. The neutralizing
media should be replaced when the pH level drops below the minimum level of the local water authority, when
the float rises (see Figure 3 above), or after one (1) year, whichever comes first. For replacement media, contact
your local Navien distributor.
• The unit is warranted against defects in materials and workmanship for
ONE YEAR
. The warranty does
NOT cover issues that result from misuse, improper installation, and/or failure to replace the media.
INSTALLATION (continued)
DRAIN
Figure 1: Standard Installation Example
MAINTENANCE
LIMITED WARRANTY
This product can expose you to crystalline silica (airborne particles of respirable size) which is known in the state
of California to cause cancer. For more information go to www.P65Warnings.ca.gov
70 mm
3.75" min clearance
WARNING
Normal Operation
Restricted Flow
Float is up, and
locked in position,
indicating that the
neutralizer requires
cleaning or media
replacement.
Float is
down
Figure 2: Direction of Condensate
Flow at Normal Operation
(Float in DOWN position)
Figure 3: Imbalance Due to
Restricted Flow
(Float in UP position)
Reversible
Connec�ons
